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1. 发明授权

US07898961B2 Method and apparatus for dynamically managing a packet segment threshold according to a wireless channel state 有权
标题翻译：根据无线信道状态动态管理分组分段阈值的方法和装置
公开(公告)号：US07898961B2
公开(公告)日：2011-03-01
申请号：US10652041
申请日：2003-09-02
申请人： Kyung-hun Jang , Hyo-sun Hwang , Jong-ae Park
发明人： Kyung-hun Jang , Hyo-sun Hwang , Jong-ae Park
IPC分类号： H04L1/00
CPC分类号： H04L1/16 , H04L1/0007 , H04L1/0026 , H04L1/0034
摘要： A method for managing a segment threshold includes determining whether a packet has been transmitted to a predetermined terminal, receiving from the predetermined terminal a response message indicating that the predetermined terminal has received the packet without any errors, if a packet has been transmitted to the predetermined terminal, receiving signal intensity data of a current packet transmitted from the predetermined terminal, and adjusting the segment threshold using the received signal intensity data of a current packet, if the response message has been received.
摘要翻译：用于管理分段阈值的方法包括：确定分组是否已被发送到预定终端，如果分组已被传送到预定的终端，则从预定终端接收指示预定终端已经接收到分组而没有任何错误的响应消息接收从预定终端发送的当前分组的信号强度数据，并且如果已经接收到响应消息，则使用当前分组的接收信号强度数据来调整分段阈值。

2. 发明授权

US07411903B2 Method of generating transmission control parameters and method of selective retransmission according to packet characteristics 失效
标题翻译：根据分组特性生成传输控制参数的方法和选择性重传方法
公开(公告)号：US07411903B2
公开(公告)日：2008-08-12
申请号：US10616034
申请日：2003-07-10
申请人： Kyung-hun Jang , Jong-ae Park , Hyo-sun Hwang
发明人： Kyung-hun Jang , Jong-ae Park , Hyo-sun Hwang
IPC分类号： H04L12/26
CPC分类号： H04L65/608 , H04L1/007 , H04L1/1671 , H04L1/1809 , H04L1/1835 , H04L29/06027 , H04L47/10 , H04L47/2425 , H04L47/26 , H04L47/27 , H04L47/32 , H04L47/34 , H04L47/35
摘要： A method for generating packet-based transmission control parameters includes (a) receiving class information of an audio-video (AV) application and characteristic information of an AV packet, from the AV application, (b) receiving status information of a wireless channel and buffer storage time information of the AV packet, from a medium access control (MAC) layer, and (c) generating and outputting the packet-based transmission control parameters on the basis of the received information. In addition, a selective retransmission method includes (a) transmitting packets of an MPEG-2 frame in real-time, (b) checking for any transmission error after the transmission, and (c) if any transmission error is generated, retransmitting only packets of an I-frame. Therefore, it is possible to efficiently support AV service in wireless communication by dynamically controlling transmission control parameters according to a buffer status and by reflecting the characteristics of the AV frames.
摘要翻译：一种用于生成基于分组的传输控制参数的方法包括（a）从AV应用接收音频视频（AV）应用的类信息和AV分组的特征信息，（b）接收无线信道的状态信息，以及来自介质访问控制（MAC）层的AV分组的缓冲存储时间信息，以及（c）基于所接收的信息生成并输出基于分组的传输控制参数。此外，选择性重传方法包括（a）实时发送MPEG-2帧的分组，（b）检查发送后的任何传输错误，以及（c）如果产生了任何传输错误，则仅重传分组的I帧。因此，可以通过根据缓冲器状态动态地控制传输控制参数并通过反映AV帧的特性来有效地支持无线通信中的AV服务。

3. 发明申请

US20050025106A1 Method and apparatus for controlling power consumption of stations on a CSMA/CA-based wireless LAN 有权
标题翻译：用于控制基于CSMA / CA的无线LAN上的站的功耗的方法和装置
公开(公告)号：US20050025106A1
公开(公告)日：2005-02-03
申请号：US10899130
申请日：2004-07-27
申请人： Chang-woo Seo , Jin-youn Cho , Kyung-hun Jang , Jin-bong Chang , Hyo-sun Hwang , Sang-hyun Woo
发明人： Chang-woo Seo , Jin-youn Cho , Kyung-hun Jang , Jin-bong Chang , Hyo-sun Hwang , Sang-hyun Woo
IPC分类号： H04L12/28 , H04B1/16 , H04B7/26 , H04W52/02 , H04L12/66 , H04Q7/24
CPC分类号： H04W52/0245 , Y02D70/142
摘要： A method and apparatus controls power consumption of stations having a hierarchical structure when the stations transmit and receive a wireless signal to and from one another on a CSMA/CA wireless LAN. The controlling involves extracting information on frame transmission speed and transmission period information on first and second layers of the hierarchical structure from the wireless signal; determining a power-controlled period for each of the first and second layers based on the extracted information; and reducing the power consumption of the first and second layers by switching a current mode of the first and second layers to a predetermined mode for the power-controlled period if a reception address included in the extracted information is not identical to an address of the station.
摘要翻译：当站在CSMA / CA无线LAN上发送和接收无线信号时，方法和装置控制具有分层结构的站的功率消耗。所述控制涉及从所述无线信号中提取关于所述分层结构的第一层和第二层的帧传输速度和传输周期信息的信息; 基于所提取的信息确定第一和第二层中的每一个的功率控制周期; 并且如果所提取的信息中包括的接收地址与站的地址不相同，则通过将第一层和第二层的当前模式切换到功率控制周期的预定模式来降低第一层和第二层的功耗。

4. 发明授权

US07739491B2 Method using access authorization differentiation in wireless access network and secure roaming method thereof 有权
标题翻译：在无线接入网络中使用接入授权差分的方法及其安全漫游方法
公开(公告)号：US07739491B2
公开(公告)日：2010-06-15
申请号：US10607917
申请日：2003-06-26
申请人： Kyung-hun Jang , In-sun Lee , Jong-ae Park
发明人： Kyung-hun Jang , In-sun Lee , Jong-ae Park
IPC分类号： H04L29/06 , H04W36/00
CPC分类号： H04L63/104 , H04L63/062 , H04W12/04 , H04W12/08 , H04W36/0038 , H04W84/12
摘要： An encryption key distribution method capable of performing fast roaming by differentially distributing encryption keys in advance, according to access authorization classes, in a wireless access network and a roaming method using distributed encryption keys are provided. The encryption key distribution method comprises: receiving a command to communicate with an access point not available for communication using an encryption key currently selected in the encryption key set; determining access authorization of the access point not available for communications; selecting an encryption key from the encryption key set obtained in advance corresponding to the determined access authorization; and using the selected encryption key to encrypt a transmission message and communicate with the access point not available for communication. The method reduces the delay time, which is caused by encryption key distribution while a wireless terminal is traveling, such that roaming and a hand-off are carried out quickly and safely, and user convenience and safe transmission of data are achieved.
摘要翻译：提供一种加密密钥分发方法，其能够根据访问授权等级在无线接入网络中以及使用分布式加密密钥的漫游方法预先差分地分配加密密钥来进行快速漫游。加密密钥分发方法包括：使用当前在加密密钥集合中选择的加密密钥接收与不可用于通信的接入点进行通信的命令; 确定不可用于通信的接入点的接入授权; 从对应于所确定的访问授权的预先获得的加密密钥集中选择加密密钥; 并使用所选择的加密密钥加密传输消息并与不可用于通信的接入点进行通信。该方法减少了无线终端正在行驶时由加密密钥分配引起的延迟时间，从而实现漫游和切换快速安全，实现用户方便和安全的数据传输。

5. 发明授权

US07706539B2 Method of guaranteeing users' anonymity and wireless local area network (LAN) system therefor 失效
标题翻译：保证用户匿名的方法和无线局域网（LAN）系统
公开(公告)号：US07706539B2
公开(公告)日：2010-04-27
申请号：US10613023
申请日：2003-07-07
申请人： Kyung-hun Jang , Jong-ae Park , In-sun Lee
发明人： Kyung-hun Jang , Jong-ae Park , In-sun Lee
IPC分类号： H04K1/00
CPC分类号： H04L61/2038 , H04L29/12254 , H04L29/12839 , H04L61/6022 , H04L63/0414 , H04W8/26 , H04W12/02 , H04W74/00 , H04W84/12
摘要： A method of guaranteeing users' anonymity and a wireless LAN system therefor are provided. In a wireless LAN system, the method of guaranteeing user' anonymity includes (a) creating a plurality of temporary address sets, each of which corresponds to a unique Media Access Control (MAC) address of a wireless terminal and transmitting the temporary address set to the corresponding wireless terminal, and (b) performing data packet transmission between the wireless terminal and the wireless access node using a temporary address selected from the temporary address set as a source address or a destination address. Therefore, it is possible to guarantee users' anonymity and improve security of a system by not exposing a MAC address during data packet transmission between a wireless terminal and a wireless access node.
摘要翻译：提供了一种保证用户匿名的方法及其无线局域网系统。在无线LAN系统中，保证用户匿名性的方法包括（a）创建多个临时地址集，每个临时地址集对应于无线终端的唯一的媒体访问控制（MAC）地址，并将临时地址集发送到相应的无线终端，以及（b）使用从作为源地址或目的地地址设置的临时地址中选择的临时地址，在无线终端与无线接入节点之间执行数据分组传输。因此，可以通过在无线终端和无线接入节点之间的数据分组传输期间不暴露MAC地址来保证用户的匿名性并提高系统的安全性。

6. 发明授权

US07953030B2 Method and apparatus for controlling power consumption of stations on a CSMA/CA-based wireless LAN 有权
标题翻译：用于控制基于CSMA / CA的无线LAN上的站的功耗的方法和装置
公开(公告)号：US07953030B2
公开(公告)日：2011-05-31
申请号：US10899130
申请日：2004-07-27
申请人： Chang-woo Seo , Jin-youn Cho , Kyung-hun Jang , Jin-bong Chang , Hyo-sun Hwang , Sang-hyun Woo
发明人： Chang-woo Seo , Jin-youn Cho , Kyung-hun Jang , Jin-bong Chang , Hyo-sun Hwang , Sang-hyun Woo
IPC分类号： G08C17/00
CPC分类号： H04W52/0245 , Y02D70/142
摘要： A method and apparatus controls power consumption of stations having a hierarchical structure when the stations transmit and receive a wireless signal to and from one another on a CSMA/CA wireless LAN. The controlling involves extracting information on frame transmission speed and transmission period information on first and second layers of the hierarchical structure from the wireless signal; determining a power-controlled period for each of the first and second layers based on the extracted information; and reducing the power consumption of the first and second layers by switching a current mode of the first and second layers to a predetermined mode for the power-controlled period if a reception address included in the extracted information is not identical to an address of the station.
摘要翻译：当站在CSMA / CA无线LAN上发送和接收无线信号时，方法和装置控制具有分层结构的站的功率消耗。所述控制涉及从所述无线信号中提取关于所述分层结构的第一层和第二层的帧传输速度和传输周期信息的信息; 基于所提取的信息确定第一和第二层中的每一个的功率控制周期; 并且如果所提取的信息中包括的接收地址与站的地址不相同，则通过将第一层和第二层的当前模式切换到功率控制周期的预定模式来降低第一层和第二层的功耗。

7. 发明授权

US07835525B2 Cryptographic method using dual encryption keys and a wireless local area network (LAN) system therefor 失效
标题翻译：使用双加密密钥和无线局域网（LAN）系统的密码方法
公开(公告)号：US07835525B2
公开(公告)日：2010-11-16
申请号：US10613125
申请日：2003-07-07
申请人： Kyung-hun Jang , Jong-ae Park , In-sun Lee
发明人： Kyung-hun Jang , Jong-ae Park , In-sun Lee
IPC分类号： H04K1/00
CPC分类号： H04W12/04 , H04L9/0833 , H04L63/065 , H04L63/068 , H04L63/083 , H04L2209/80 , H04L2463/062 , H04W84/12 , H04W84/18
摘要： A cryptographic method using dual encryption keys and a wireless local area network (LAN) system therefor includes (a) generating a first group key in N wireless terminals forming an ad-hoc group, where N is equal to or greater than two, (b) generating a second group key in a main wireless terminal to perform a key distribution center function among the N wireless terminals, and transmitting the second group key to (N−1) sub wireless terminal, and (c) encoding data using the second group key, and transmitting the encoded data between the N wireless terminals. Data security in a wireless LAN system of an ad-hoc network is increased by creating a first group key having a low frequency of use using a group password, and using a random key generation algorithm to create, distribute, and modify a second group key in a wireless terminal functioning as a key distribution center.
摘要翻译：使用双加密密钥的密码方法及其无线局域网（LAN）系统包括：（a）在形成自组织的N个无线终端中生成第一组密钥，其中N等于或大于2，（b ）在所述N个无线终端中生成主无线终端中的第二组密钥，以执行密钥分发中心功能，以及将所述第二组密钥发送到（N-1）子无线终端，以及（c）使用所述第二组对所述数据进行编码并且在N个无线终端之间传送编码数据。通过使用组密码创建具有低使用频率的第一组密钥，并且使用随机密钥生成算法来创建，分发和修改第二组密钥来增加自组织网络的无线LAN系统中的数据安全性在作为关键配送中心的无线终端中。

8. 发明授权

US07412251B2 Wireless communication apparatus, wireless communication system adopting the same and communication method thereof 有权
标题翻译：无线通信装置，采用该无线通信装置的无线通信系统及其通信方法
公开(公告)号：US07412251B2
公开(公告)日：2008-08-12
申请号：US09915554
申请日：2001-07-27
申请人： Tae-jin Lee , Kyung-hun Jang , Hyun-sook Kang , Jong-hun Park
发明人： Tae-jin Lee , Kyung-hun Jang , Hyun-sook Kang , Jong-hun Park
IPC分类号： H04B7/00 , H04Q7/20
CPC分类号： H04W72/1247 , H04W74/06 , H04W84/18
摘要： A wireless communication apparatus, a wireless communication system adopting the same and a communication method thereof are provided. In the wireless communication system, a slave device transmits a predetermined priority to the master device, and a master device receives the predetermined priority from the slave device, and determines and assigns the slave device with a priority considering the predetermined priority. According to the wireless communication apparatus, the wireless communication system adopting the same and the communication method thereof, a suitable transmission rate is assigned to the slave device, not uniformly, but according to the need of the slave device, so that assigning of an excessive or insufficient transmission rate can be prevented.
摘要翻译：提供一种无线通信装置，采用该无线通信装置的无线通信系统及其通信方法。在无线通信系统中，从设备向主设备发送预定的优先权，并且主设备从从设备接收预定优先级，并且考虑到预定优先级来确定并分配从设备的优先级。根据无线通信装置，采用该无线通信装置的无线通信系统及其通信方法，对于从属设备而言，适当的传输速率不是均匀地分配，而是根据从设备的需要，从而分配过多的或者可以防止传输速率不足。

9. 发明授权

US07453846B2 Method for sharing hybrid resources in a wireless independent network, a station for the method, and a data format for the method and the station 失效
标题翻译：用于在无线独立网络中共享混合资源的方法，用于该方法的站，以及用于该方法和站的数据格式
公开(公告)号：US07453846B2
公开(公告)日：2008-11-18
申请号：US10314295
申请日：2002-12-09
申请人： Kyung-hun Jang
发明人： Kyung-hun Jang
IPC分类号： H04Q7/00
CPC分类号： H04W72/042 , H04W72/087 , H04W74/0808
摘要： In a system for sharing hybrid resources in an independent network, each one of a plurality of stations preferably employs a sharing authority transferring protocol that allows the network control function to be moved from station to station depending on the network traffic. Although a distributed coordination method is normally used in the network, when an individual station determines that a real-time data stream is intended for the station, an apparatus having a method and data format for the use thereof allows control to be transferred to the targeted station. This allows the targeted station to control the sharing of the wireless hybrid resources using a centralized control method in a direct mode for the duration of the real-time service transmission, thereby optimizing network efficiency. As a result of using the distributed control authority of the present invention, a station may be freely subscribe/withdraw to/from the network.
摘要翻译：在用于在独立网络中共享混合资源的系统中，多个站中的每一个优选采用根据网络流量允许网络控制功能从站到站移动的共享授权传送协议。虽然通常在网络中使用分布式协调方法，但是当单个站确定实时数据流是用于该站时，具有用于其使用的方法和数据格式的设备允许将控制转移到目标站。这允许目标站在实时业务传输期间以直接方式使用集中式控制方式来控制无线混合资源的共享，从而优化网络效率。作为使用本发明的分布式控制权限的结果，站可以自由地/从网络退出。

10. 发明授权

US07428240B2 Data communications method using backoff number control 有权
标题翻译：数据通信方式采用退避数控制
公开(公告)号：US07428240B2
公开(公告)日：2008-09-23
申请号：US10247482
申请日：2002-09-20
申请人： Kyung-hun Jang , Woo-shik Kang
发明人： Kyung-hun Jang , Woo-shik Kang
IPC分类号： H04L12/413
CPC分类号： H04W74/085 , H04L12/413 , H04W74/06
摘要： A method for transmitting data in a centralized data communications system having an access point and a plurality of stations using a carrier sense multiplexing access (CSMA) method using a backoff number control preferably includes (a) receiving a multi-poll message containing backoff numbers to be assigned to each station by the access point; (b) setting the backoff numbers of the multi-poll message to the backoff numbers of the stations; and (c) counting down the set backoff numbers and transmitting data. Each station that desires polling registers a station ID and a polling cycle, sets a backoff number contained in a multi-poll message, counts the backoff number, and if the backoff number becomes zero, transmits data such that contention between stations is prevented.
摘要翻译：在使用倒退号码控制的载波侦听复用接入（CSMA）方法的具有接入点和多个站的集中式数据通信系统中发送数据的方法优选地包括：（a）接收包含退避号码的多轮询消息，由接入点分配给每个电台; （b）将多轮询消息的退避次数设置为站的退避次数; （c）对设定的退货号码进行倒计时并发送数据。每个需要轮询的站登记站号和轮询周期，设置包含在多轮询消息中的退避号码，对退避次数进行计数，并且如果退避次数为零，则发送数据，以防止站间的争用。

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