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。

公开(公告)号：US07542438B2

公开(公告)日：2009-06-02

申请号：US10612141

申请日：2003-07-02

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： H04H20/71 ,  H04L12/28

CPC分类号： H04W88/04 ,  H04L2001/0093

摘要： A reliable multicast data retransmission method by grouping wireless terminals in a wireless communication environment and performing multicast data retransmission for a particular group of wireless terminals that needs multicast data retransmission, thereby providing reliable multicast data retransmission and improving the efficiency of a network. The multicast data retransmission method includes grouping wireless terminals based on distances between an access point and the wireless terminals and the amplitudes of signals output from the wireless terminals, selecting a repeater, which is to retransmit multicast packets, from each group and arranging the order in which repeaters retransmit multicast packets, creating a multicast packet train header indicating characteristics of each of the multicast packets, multicasting the created multicast packet train header. The multicast packets are retransmitted in the arranged order.

摘要翻译： 一种可靠的组播数据重传方法，通过对无线通信环境中的无线终端进行分组，对需要组播数据重传的特定无线终端组进行组播数据重传，从而提供可靠的组播数据重传，提高网络效率。 组播数据重传方法包括基于接入点与无线终端之间的距离以及从无线终端输出的信号的幅度对无线终端进行分组，从每个组中选择重传多播分组的中继器，并将顺序排列在 所述中继器重传多播分组，创建指示每个组播分组的特征的组播分组序列头，组播所创建的多播分组列表头。 组播数据包按照排列顺序进行重传。

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。

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 。

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 。

公开(公告)号：US07603477B2

公开(公告)日：2009-10-13

申请号：US10206194

申请日：2002-07-29

申请人： Jin-hyeock Choi ,  Woo-shik Kang ,  Hyo-sun Hwang

发明人： Jin-hyeock Choi ,  Woo-shik Kang ,  Hyo-sun Hwang

IPC分类号： G06F15/173

CPC分类号： H04L29/12009 ,  H04L29/12207 ,  H04L45/20 ,  H04L45/46 ,  H04L61/20 ,  H04W8/06 ,  H04W40/246 ,  H04W80/04 ,  H04W88/005

摘要： An automated system and method of establishing a local mobility domain (LMD) and a local mobility agent (LMA) on a mobile terminal node (MN) using Internet Protocol version (IPv6) preferably includes: establishing within the MN a newly contacted access router (AR) as the LMA and then receiving from the LMA and storing a list of neighboring ARs, which comprise the LMD. Each AR contains a stored list of neighboring ARs that are within a predetermined range of the AR, which is dynamically set by a network manager. The MN registers a retrieved local and regional address with both the LMA and a home agent (HA.) When the MN moves to a new AR, the stored list of the new AR is checked for the present LMA. The LMA is only changed to the new AR and re-registered with the HA if the new AR is in a different LMD.

摘要翻译： 优选地，使用互联网协议版本（IPv6）在移动终端节点（MN）上建立本地移动性域（LMD）和本地移动代理（LMA）的自动化系统和方法包括：在MN内建立新接触的接入路由器 AR）作为LMA，然后从LMA接收并存储包括LMD的相邻AR的列表。 每个AR包含在AR的预定范围内的相邻AR的存储列表，其由网络管理器动态地设置。 MN向LMA和归属代理（HA）注册检索到的本地和区域地址。当MN移动到新的AR时，检查当前LMA的新AR的存储列表。 如果新的AR处于不同的LMD，则仅将LMA更改为新的AR并重新向HA注册。