公开(公告)号：US07978681B2

公开(公告)日：2011-07-12

申请号：US10901247

申请日：2004-07-29

申请人： Woon-jae Chung ,  Byung-in Mun ,  Rajesh Patharkar

发明人： Woon-jae Chung ,  Byung-in Mun ,  Rajesh Patharkar

IPC分类号： H04L12/28

CPC分类号： H04L69/16 ,  H04L47/10 ,  H04L47/14 ,  H04L47/36

摘要： An apparatus, system, and method for discovering a path MTU in a data communication network, wherein a path MTU option header is included in a signal message or first data packet and thus a MTU suitable for a routing path can be determined. A network apparatus for discovering a path MTU maximum transmission unit (MTU) in a data communication network, including a MTU-comparing unit MTU-comparer detecting a path MTU recorded on a predetermined packet transferred over a routing path between a source node and a destination node and comparing the detected path MTU with an internal MTU stored in the MTU-comparing unit MTU-comparer; and an event-processing unit event-processor updating the path MTU recorded on the predetermined packet to contain the internal MTU if the detected path MTU is larger than the internal MTU.

摘要翻译： 一种用于在数据通信网络中发现路径MTU的装置，系统和方法，其中路径MTU选项头包括在信号消息或第一数据分组中，因此可以确定适合于路由路径的MTU。 一种用于发现数据通信网络中的路径MTU最大传输单元（MTU）的网络设备，包括MTU比较单元MTU比较器，用于检测记录在源节点和目的地之间的路由路径上传送的预定分组上的路径MTU 并将检测到的路径MTU与存储在MTU比较单元MTU比较器中的内部MTU进行比较; 以及如果检测到的路径MTU大于内部MTU，则事件处理单元事件处理器更新记录在预定分组上的路径MTU以包含内部MTU。

公开(公告)号：US20050041635A1

公开(公告)日：2005-02-24

申请号：US10901247

申请日：2004-07-29

申请人： Woon-Jae Chung ,  Byung-in Mun ,  Rajesh Patharkar

发明人： Woon-Jae Chung ,  Byung-in Mun ,  Rajesh Patharkar

IPC分类号： H04L12/70 ,  H04L29/06 ,  H04L12/28

CPC分类号： H04L69/16 ,  H04L47/10 ,  H04L47/14 ,  H04L47/36

摘要： An apparatus, system, and method for discovering a path MTU in a data communication network, wherein a path MTU option header is included in a signal message or first data packet and thus a MTU suitable for a routing path can be determined. A network apparatus for discovering a path MTU maximum transmission unit (MTU) in a data communication network, including a MTU-comparing unit MTU-comparer detecting a path MTU recorded on a predetermined packet transferred over a routing path between a source node and a destination node and comparing the detected path MTU with an internal MTU stored in the MTU-comparing unit MTU-comparer; and an event-processing unit event-processor updating the path MTU recorded on the predetermined packet to contain the internal MTU if the detected path MTU is larger than the internal MTU.

摘要翻译： 一种用于在数据通信网络中发现路径MTU的装置，系统和方法，其中路径MTU选项头包括在信号消息或第一数据分组中，因此可以确定适合于路由路径的MTU。 一种用于发现数据通信网络中的路径MTU最大传输单元（MTU）的网络设备，包括MTU比较单元MTU比较器，用于检测记录在源节点和目的地之间的路由路径上传送的预定分组上的路径MTU 并将检测到的路径MTU与存储在MTU比较单元MTU比较器中的内部MTU进行比较; 以及如果检测到的路径MTU大于内部MTU，则事件处理单元事件处理器更新记录在预定分组上的路径MTU以包含内部MTU。

公开(公告)号：US20050088993A1

公开(公告)日：2005-04-28

申请号：US10886666

申请日：2004-07-09

申请人： Hye-young Jung ,  Byung-in Mun ,  Woon-jae Chung ,  Hyeong-seok Kim

发明人： Hye-young Jung ,  Byung-in Mun ,  Woon-jae Chung ,  Hyeong-seok Kim

IPC分类号： H04B7/26 ,  H04W28/00 ,  H04W36/08 ,  H04W36/10 ,  H04W36/32 ,  H04W36/38 ,  H04W80/04 ,  H04W84/18 ,  H04W84/22 ,  H04Q7/20 ,  H04Q7/00

CPC分类号： H04W36/0016 ,  H04W36/10 ,  H04W36/32 ,  H04W80/04 ,  H04W84/22

摘要： A network apparatus for a stable handoff in an IP-based mobile ad hoc network system and a handoff method using the same. Present invention enables a handoff to be stably performed by pre-configuring a handoff to a new access router. The network apparatus of the present invention comprises a movement-determining unit for determining movement depending on the signal strength upon reception of a packet among network apparatuses operating on a communication mobile ad hoc network, and deciding a handoff to a new access router; a router-configuring unit for configuring information on the new access router for the handoff by performing beforehand the handoff to the new access router according to the results of the determination in the movement-determining unit; and a handoff-processing unit for performing the handoff to the new access router using the pre-configured information according to the determination in the movement-determining unit.

摘要翻译： 一种用于基于IP的移动自组织网络系统中的稳定切换的网络装置和使用该装置的切换方法。 本发明使得能够通过预先配置到新的接入路由器的切换来稳定地执行切换。 本发明的网络装置包括移动确定单元，用于根据在通信移动自组织网络上操​​作的网络设备中的分组接收时的信号强度来确定移动，并且确定到新的接入路由器的切换; 路由器配置单元，用于通过根据移动确定单元中的确定结果事先执行切换到新的接入路由器来配置用于切换的新接入路由器的信息; 以及切换处理单元，用于根据移动确定单元中的确定，使用预先配置的信息来执行到新的接入路由器的切换。

公开(公告)号：US07697940B2

公开(公告)日：2010-04-13

申请号：US10886666

申请日：2004-07-09

申请人： Hye-young Jung ,  Byung-in Mun ,  Woon-jae Chung ,  Hyeong-seok Kim

发明人： Hye-young Jung ,  Byung-in Mun ,  Woon-jae Chung ,  Hyeong-seok Kim

IPC分类号： H04Q7/20

CPC分类号： H04W36/0016 ,  H04W36/10 ,  H04W36/32 ,  H04W80/04 ,  H04W84/22

摘要： A network apparatus for a stable handoff in an IP-based mobile ad hoc network system and a handoff method using the same. Present invention enables a handoff to be stably performed by pre-configuring a handoff to a new access router. The network apparatus of the present invention comprises a movement-determining unit for determining movement depending on the signal strength upon reception of a packet among network apparatuses operating on a communication mobile ad hoc network, and deciding a handoff to a new access router; a router-configuring unit for configuring information on the new access router for the handoff by performing beforehand the handoff to the new access router according to the results of the determination in the movement-determining unit; and a handoff-processing unit for performing the handoff to the new access router using the pre-configured information according to the determination in the movement-determining unit.

摘要翻译： 一种用于基于IP的移动自组织网络系统中的稳定切换的网络装置和使用该装置的切换方法。 本发明使得能够通过预先配置到新的接入路由器的切换来稳定地执行切换。 本发明的网络装置包括移动确定单元，用于根据在通信移动自组织网络上操​​作的网络设备中的分组接收时的信号强度来确定移动，并且确定到新的接入路由器的切换; 路由器配置单元，用于通过根据移动确定单元中的确定结果事先执行切换到新的接入路由器来配置用于切换的新接入路由器的信息; 以及切换处理单元，用于根据移动确定单元中的确定，使用预先配置的信息来执行到新的接入路由器的切换。

公开(公告)号：US07336608B2

公开(公告)日：2008-02-26

申请号：US10888008

申请日：2004-07-12

申请人： Jin-hyun Sin ,  Byung-in Mun ,  Song-yean Cho ,  Hyuck Yoo ,  See-hwan Yoo ,  Jin-hee Choi

发明人： Jin-hyun Sin ,  Byung-in Mun ,  Song-yean Cho ,  Hyuck Yoo ,  See-hwan Yoo ,  Jin-hee Choi

IPC分类号： H04J1/16 ,  H04L12/26

CPC分类号： H04W28/22 ,  H04L47/14 ,  H04L47/193 ,  H04L47/225 ,  H04L47/283 ,  H04L47/29 ,  H04W84/18

摘要： A method for adjusting a transmission rate in the transmission control protocol (TCP) under a mobile ad hoc network environment, including calculating a difference value (Diff) between the current transmission rate (cur_bw) and the previous transmission rate (base_bw), setting up upper and lower thresholds by calculating the standard variation (basebw_var) of the previous transmission rate, and updating the previous transmission rate to the current transmission rate depending upon a comparison result of Diff and the size of the upper and lower thresholds.

摘要翻译： 一种用于在移动自组织网络环境下调整传输控制协议（TCP）中的传输速率的方法，包括计算当前传输速率（cur_bw）和先前传输速率（base_bw）之间的差值（Diff），建立 通过计算先前传输速率的标准变化（basebw_var）并根据Diff的比较结果和上限和下限阈值的大小将先前的传输速率更新为当前传输速率，从而产生上限和下限阈值。

公开(公告)号：US07660258B2

公开(公告)日：2010-02-09

申请号：US10921958

申请日：2004-08-20

申请人： Song-yean Cho ,  Byung-in Mun

发明人： Song-yean Cho ,  Byung-in Mun

IPC分类号： G01R31/08 ,  G06F11/00 ,  G08C15/00 ,  H04J1/16 ,  H04J3/14 ,  H04L1/00 ,  H04L12/26

CPC分类号： H04L29/12311 ,  H04L41/0816 ,  H04L45/02 ,  H04L45/026 ,  H04L61/2084 ,  H04W40/30

摘要： The present invention relates to a method for automatically configuring network addresses of mobile nodes participating in a mobile multi-hop network. The method of the present invention includes a first step of, if a first mobile node belonging to a first network moves into and participates in a second network, detecting that the first mobile node has moved; a second step of securing a route from the first mobile node to a gateway of the second network and requesting network configuration information; and a third step of receiving an available network address allocated by the gateway and changing the network configuration information of the first mobile node.

摘要翻译： 本发明涉及一种自动配置参与移动多跳网络的移动节点的网络地址的方法。 本发明的方法包括：第一步骤，如果属于第一网络的第一移动节点移入并参与第二网络，则检测第一移动节点已经移动; 确保从第一移动节点到第二网络的网关的路由并请求网络配置信息的第二步骤; 以及接收由所述网关分配的可用网络地址并改变所述第一移动节点的网络配置信息的第三步骤。

公开(公告)号：US07490160B2

公开(公告)日：2009-02-10

申请号：US10899103

申请日：2004-07-27

申请人： Jin-hyun Sin ,  Byung-in Mun ,  Song-yean Cho ,  Hyuck Yoo ,  See-hwan Yoo ,  Jin-hee Choi

发明人： Jin-hyun Sin ,  Byung-in Mun ,  Song-yean Cho ,  Hyuck Yoo ,  See-hwan Yoo ,  Jin-hee Choi

IPC分类号： G06F15/16 ,  G06F15/173

CPC分类号： H04L1/1685 ,  H04L1/187 ,  H04L2001/125

摘要： A method of efficiently transmitting/receiving data using a transport layer in a mobile ad hoc network, and a network device using the method. The method includes a first step of setting, by a sending host, a flag for requesting an ACK-response into a predetermined packet of packets contained in a window for data transmission; a second step of sending, by the sending host, the packet with the flag set thereinto and other packets without any flags contained in the window to a receiving host; and a third step of, by the receiving host, receiving the packets transmitted in the second step, and sending the ACK-response to the packet with the flag set thereinto among the received packets.

摘要翻译： 一种使用移动自组织网络中的传输层有效地发送/接收数据的方法，以及使用该方法的网络设备。 该方法包括：第一步骤，由发送主机将用于请求ACK响应的标志设置为包含在用于数据传输的窗口中的分组的预定分组; 由发送主机将其中设置的标志的分组和其他分组发送到接收主机的无窗口中的任何标志的第二步骤; 以及第三步骤，由接收主机接收在第二步骤中发送的分组，并且在接收到的分组中向其中设置有标志的分组发送ACK响应。

公开(公告)号：US07310761B2

公开(公告)日：2007-12-18

申请号：US10831274

申请日：2004-04-26

申请人： Song-yean Cho ,  Jin-hyun Sin ,  Byung-in Mun

发明人： Song-yean Cho ,  Jin-hyun Sin ,  Byung-in Mun

IPC分类号： G08C25/02

CPC分类号： H04L1/1671 ,  H04L2001/0093 ,  H04W84/18

摘要： A method and an apparatus for requesting packet redelivery in a mobile ad hoc network environment. The method includes receiving a first packet periodically broadcasted, extracting packet delivery information of a second packet from the first packet, the second packet including data generated by an application program, determining loss of the second packet based on the packet delivery information, and broadcasting a request packet to request redelivery of the second packet, when it is determined that the second packet is lost.

摘要翻译： 一种用于在移动自组织网络环境中请求分组重新传送的方法和装置。 该方法包括接收周期性广播的第一分组，从第一分组提取第二分组的分组传递信息，第二分组包括由应用程序生成的数据，基于分组传递信息确定第二分组的丢失，并且广播 当确定第二分组丢失时，请求分组请求重新传递第二分组。

公开(公告)号：US07881200B2

公开(公告)日：2011-02-01

申请号：US11525080

申请日：2006-09-22

申请人： Keun-jae Lee ,  Sang-su Nam ,  Byung-in Mun

发明人： Keun-jae Lee ,  Sang-su Nam ,  Byung-in Mun

IPC分类号： G01R31/08 ,  H04W4/00

CPC分类号： H04L65/608 ,  H04L1/0002 ,  H04L1/0015 ,  H04L1/187 ,  H04L29/06027 ,  H04L69/16 ,  H04L69/163 ,  H04L69/165 ,  Y02D50/10

摘要： A method of controlling a transmission rate and a communication device using the same are disclosed. A method of controlling a transmission rate includes changing a path for packet transmission/reception from a first path to a second path, setting a congestion window and a slow-start threshold to be used in the second path to a congestion window and a slow-start threshold used in the first path, and adapting the congestion window and the slow-start threshold to be used in the second path according to a packet loss generated in the second path.

摘要翻译： 公开了一种控制传输速率的方法和使用其的通信设备。 控制传输速率的方法包括：将从第一路径到第二路径的分组发送/接收的路径改变，将第二路径中使用的拥塞窗口和慢启动阈值设置为拥塞窗口和慢速启动阈值， 在第一路径中使用的启动阈值，以及根据在第二路径中生成的分组丢失来适配要在第二路径中使用的拥塞窗口和慢启动阈值。

公开(公告)号：US07519228B2

公开(公告)日：2009-04-14

申请号：US10717647

申请日：2003-11-21

申请人： Song-yean Cho ,  Byung-in Mun

发明人： Song-yean Cho ,  Byung-in Mun

IPC分类号： G06K9/36 ,  H04B1/66 ,  H04B14/04 ,  H04N7/12 ,  H04N1/32 ,  H04N7/167

CPC分类号： H04N19/60 ,  H04N19/13

摘要： Disclosed herein is a method and apparatus for encrypting and compressing multimedia data, which transforms and compresses multimedia data through an encryption key in a process of compressing the multimedia data to record and transmit the data, and encrypts the multimedia data to allow the data to be decoded using only the encryption key. The method includes creating Discrete Cosine Transform (DCT) coefficients by applying input multimedia data to a DCT unit, and quantizing the DCT coefficients; encrypting and compressing transformed Differential Coefficients (DC coefficient) and transformed Amplitude Coefficients (AC coefficient) by transforming encoded DC and AC coefficients depending on a certain encryption key at the time of entropy encoding quantized DC and AC coefficients of the quantized DCT coefficients; and Huffmann coding the encrypted DC and AC coefficients and outputting the coded DC and AC coefficients. The method is a data compression method suitable for processing multimedia data for wireless communication.

摘要翻译： 本文公开了一种用于加密和压缩多媒体数据的方法和装置，该多媒体数据在压缩多媒体数据以记录和发送数据的过程中通过加密密钥来转换和压缩多媒体数据，并加密多媒体数据以允许数据为 仅使用加密密钥进行解码。 该方法包括通过向DCT单元应用输入多媒体数据并量化DCT系数来创建离散余弦变换（DCT）系数; 通过在对量化的DCT系数的量化的DC和AC系数进行熵编码时根据某个加密密钥变换编码的DC和AC系数，对经变换的差分系数（DC系数）和变换的幅度系数（AC系数）进行加密和压缩; 霍夫曼对加密的DC和AC系数进行编码，并输出经编码的DC和AC系数。 该方法是适用于处理用于无线通信的多媒体数据的数据压缩方法。