公开(公告)号：US6088346A

公开(公告)日：2000-07-11

申请号：US937313

申请日：1997-09-22

申请人： Yonggang Du ,  Peter May ,  Christoph Herrmann

发明人： Yonggang Du ,  Peter May ,  Christoph Herrmann

IPC分类号： H04Q3/00 ,  H04L12/70 ,  H04Q11/04 ,  H04L12/42

CPC分类号： H04Q11/0478 ,  H04L2012/5607 ,  H04L2012/5612 ,  H04L2012/5615

摘要： The invention relates to a local area network operating in the asynchronous transfer mode, with a first transceiver (1 to 8, 54 to 57) which includes a radio device (33, 60) for transmitting cells to a plurality of other transceivers (1 to 21, 54 to 57). For a data exchange between the first and the other transceivers (1 to 21, 54 to 57) without cells being blocked, a radio device (49, 60) includes a first buffer memory (73) assigned to a respective other transceiver (1 to 21, 54 to 57). A first buffer memory (73) is used for storing a cell whose destination is another transceiver (1 to 21, 54 to 57) which is assigned to the respective first buffer memory (73).

摘要翻译： 本发明涉及以异步传送模式操作的局域网，其中第一收发器（1至8,54至57）包括用于将小区发送到多个其他收发器（1至8）的无线电设备（33,60） 21，54至57）。 对于没有单元被阻塞的第一和另外的收发器（1至21,54至57）之间的数据交换，无线电设备（49,60）包括分配给相应的另一收发器（1至1）的第一缓冲存储器（73） 21，54至57）。 第一缓冲存储器（73）用于存储其目的地是分配给相应的第一缓冲存储器（73）的另一收发器（1至21,54至57）的小区。

公开(公告)号：US20070002763A1

公开(公告)日：2007-01-04

申请号：US11475540

申请日：2006-06-27

申请人： Samir Hulyalkar ,  Yonggang Du ,  Christoph Herrmann ,  Chiu Ngo ,  Peter May

发明人： Samir Hulyalkar ,  Yonggang Du ,  Christoph Herrmann ,  Chiu Ngo ,  Peter May

IPC分类号： H04J1/16

CPC分类号： H04W24/00 ,  H04W24/02 ,  H04W24/10 ,  H04W76/10 ,  H04W84/08 ,  H04W84/18 ,  H04W84/20 ,  H04W88/04

摘要： Centrally controlled wireless networks require reliable communications between the central controller and each of the stations within the wireless networks. The structure of a wireless network is often dynamic, or ad-hoc, as stations enter and exit the network, or are physically relocated. The selection of the central controller for the network may also be dynamic, either because the current central controller desires to exit the network, or because the communication between the current central controller and one or more of the stations is poor. This invention discloses a method and apparatus for assessing the quality of the communication paths among all stations in the network. This assessment is useful as a continual monitor of the quality of the network, and can be utilized to select an alternative central control station based upon the quality of communication paths to and from this station. Additionally, the quality assessment can be utilized to establish relay communication paths, as required.

摘要翻译： 集中控制的无线网络需要中央控制器与无线网络内的每个站之间的可靠通信。 无线网络的结构通常是动态的或临时的，因为台站进入和离开网络，或者被物理地迁移。 网络的中央控制器的选择也可以是动态的，这是因为当前的中央控制器希望退出网络，或者因为当前中央控制器与一个或多个站之间的通信差。 本发明公开了一种用于评估网络中所有站之间的通信路径的质量的方法和装置。 该评估作为对网络质量的连续监视是有用的，并且可以用于基于到达和来自该站的通信路径的质量来选择替代的中央控制站。 此外，可以根据需要利用质量评估来建立中继通信路径。

公开(公告)号：US07136371B2

公开(公告)日：2006-11-14

申请号：US09817457

申请日：2001-03-26

申请人： Yonggang Du ,  Christoph Herrmann ,  Peter May

发明人： Yonggang Du ,  Christoph Herrmann ,  Peter May

IPC分类号： H04J3/24 ,  H04L12/28 ,  H04L12/56

CPC分类号： H04W72/1257 ,  H04W4/08 ,  H04W72/0446 ,  H04W74/04

摘要： The invention relates to a wireless network defined as a group of wireless terminals and an assigned central station. After receiving requests for the wireless transmission of packets between a transmitting and a receiving terminal during a time multiplex frame, the central station assigns time slots within a following time multiplex frame for the transmission of packets from transmitting to receiving terminals. After reception of all the transmission requests, the central station determines a first subset of the group that intend to transmit to receiving terminals, and a second subset containing all transmitting terminals (of the group) that are not contained in the first subset. An order in which the transmitting terminals of the first subset will transmit is determined in accordance with the decreasing number of receiving terminals assigned to each transmitting terminal. The receiving terminals of the first subset are subdivided into a first group, and into a second group where the second group contains all the receiving terminals not contained in the first group, and the receiving terminals of the second group are selected for reception first in time.

摘要翻译： 本发明涉及被定义为一组无线终端和分配的中心站的无线网络。 在时间复用帧之间接收到在发射和接收终端之间无线传输分组的请求之后，中心站在随后的时间多路复用帧中分配时隙，用于从发射到接收终端的分组传输。 在接收到所有发送请求之后，中心站确定要向接收终端发送的组的第一子集，以及包含该第一子集中未包含的所有发送终端（第二子集）的第二子集。 根据分配给每个发送终端的接收终端的减少数量来确定第一子集的发送终端将发送的顺序。 第一子集的接收终端被细分为第一组，并且分成第二组，其中第二组包含未包含在第一组中的所有接收终端，并且第二组的接收终端被选择用于首先接收 。

公开(公告)号：US06278690B1

公开(公告)日：2001-08-21

申请号：US09057651

申请日：1998-04-09

申请人： Christoph Herrmann ,  Yonggang Du ,  Klaus P. May

发明人： Christoph Herrmann ,  Yonggang Du ,  Klaus P. May

IPC分类号： H04J116

CPC分类号： H04Q11/0478 ,  H04L12/437 ,  H04L2012/5612 ,  H04L2012/5627 ,  H04L2012/563 ,  Y10S370/909

摘要： A local area network with a plurality of nodes for transmitting cells in the asynchronous transfer mode over a ring system having two opposite direction rings. In the event of a defect in a transmitting line from a node, or a defect in a neighboring node, a loop is formed in this node to reroute messages from one ring to the other. First, a node detecting a defect transmits a message of a first type to all other involved nodes, identifying the location of the detected defect. This information is entered in a respective status table in each node. After evaluating the information in its status table, a node which should form a loop does so, and sends a message of a second type identifying the loop to any nodes which do not already have this information.

摘要翻译： 一种具有多个节点的局域网，用于通过具有两个相反方向环的环系统以异步传输模式传送小区。 在来自节点的传输线路中的缺陷或相邻节点的缺陷的情况下，在该节点中形成环路以将消息从一个环路重新路由到另一个环路。 首先，检测缺陷的节点向所有其他相关节点发送第一类型的消息，识别检测到的缺陷的位置。 该信息被输入到每个节点的相应状态表中。 在对其状态表中的信息进行评估之后，应该形成循环的节点执行此操作，并且向没有该信息的任何节点发送标识循环的第二类型的消息。

公开(公告)号：US07746915B1

公开(公告)日：2010-06-29

申请号：US09763845

申请日：2000-06-29

申请人： Christoph Herrmann ,  Yonggang Du

发明人： Christoph Herrmann ,  Yonggang Du

IPC分类号： H04B1/00

CPC分类号： H04W74/0866 ,  H04W56/00

摘要： A wireless network employs at least a base station (1 to 3) and a plurality of assigned terminals (4 to 14) for exchanging user data and control data. That base station (1 to 3) includes a device (21, 22) for correlating a signaling sequence transmitted by at least one terminal (4 to 14) to indicate the wish to use a contention channel and for detecting the pulse evolved from a received and correlated signaling sequence. After a signaling sequence has been detected, the base station (1 to 3) transmits a provision message over a contention channel to be utilized by the assigned terminals (4 to 14).

摘要翻译： 无线网络至少使用用于交换用户数据和控制数据的基站（1至3）和多个分配终端（4至14）。 该基站（1至3）包括用于将由至少一个终端（4至14）发送的信令序列相关联以指示希望使用竞争信道并用于检测从接收到的发射的脉冲的设备（21,22） 和相关信号序列。 在检测到信令序列之后，基站（1至3）通过要由分配的终端（4至14）利用的争用信道发送提供消息。

公开(公告)号：US06751196B1

公开(公告)日：2004-06-15

申请号：US08919052

申请日：1997-08-27

申请人： Samir N. Hulyalkar ,  Yonggang Du ,  Christoph Herrmann ,  Chiu Ngo ,  Peter Klaus May

发明人： Samir N. Hulyalkar ,  Yonggang Du ,  Christoph Herrmann ,  Chiu Ngo ,  Peter Klaus May

IPC分类号： H04L1226

CPC分类号： H04W24/00 ,  H04W24/02 ,  H04W24/10 ,  H04W76/10 ,  H04W84/08 ,  H04W84/18 ,  H04W84/20 ,  H04W88/04

摘要： Centrally controlled wireless networks require reliable communications between the central controller and each of the stations within the wireless networks. The structure of a wireless network is often dynamic, or ad-hoc, as stations enter and exit the network, or are physically relocated. The selection of the central controller for the network may also be dynamic, either because the current central controller desires to exit the network, or because the communication between the current central controller and one or more of the stations is poor. This invention discloses a method and apparatus for assessing the quality of the communication paths among all stations in the network. This assessment is useful as a continual monitor of the quality of the network, and can be utilized to select an alternative central control station based upon the quality of communication paths to and from this station. Additionally, the quality assessment can be utilized to establish relay communication paths, as required.

摘要翻译： 集中控制的无线网络需要中央控制器与无线网络内的每个站之间的可靠通信。 无线网络的结构通常是动态的或临时的，因为台站进入和离开网络，或者被物理地迁移。 网络的中央控制器的选择也可以是动态的，这是因为当前的中央控制器希望退出网络，或者因为当前中央控制器与一个或多个站之间的通信差。 本发明公开了一种用于评估网络中所有站之间的通信路径的质量的方法和装置。 该评估作为对网络质量的连续监视是有用的，并且可以用于基于到达和来自该站的通信路径的质量来选择替代的中央控制站。 此外，可以根据需要利用质量评估来建立中继通信路径。

公开(公告)号：US06556576B1

公开(公告)日：2003-04-29

申请号：US09422732

申请日：1999-10-21

申请人： Yonggang Du ,  Christoph Herrmann ,  Klaus P. May

发明人： Yonggang Du ,  Christoph Herrmann ,  Klaus P. May

IPC分类号： H04L1228

CPC分类号： H04W88/16 ,  H04L12/4625 ,  H04L2012/5612 ,  H04L2012/5618 ,  H04Q11/0478 ,  H04W28/14 ,  H04W84/12 ,  H04W88/14 ,  H04W92/02

摘要： A bridge terminal of a local area network is provided for transmitting data between the terminals of at least two sub-networks via a wireless medium. The bridge terminal is alternately connected to the sub-networks for exchanging data. For buffering received data for an unconnected sub-network, the bridge terminal includes an intermediate store.

摘要翻译： 提供局域网的桥接终端，用于经由无线介质在至少两个子网的终端之间传送数据。 桥接终端交替连接到用于交换数据的子网络。 为了缓冲未连接的子网络的接收数据，桥接终端包括中间存储器。

公开(公告)号：US07457298B2

公开(公告)日：2008-11-25

申请号：US10313737

申请日：2002-12-06

申请人： Yonggang Du ,  Christoph Herrmann ,  Klaus P. May

发明人： Yonggang Du ,  Christoph Herrmann ,  Klaus P. May

IPC分类号： H04L12/38 ,  H04L12/56

CPC分类号： H04W88/16 ,  H04L12/4625 ,  H04L2012/5612 ,  H04L2012/5618 ,  H04Q11/0478 ,  H04W28/14 ,  H04W84/12 ,  H04W88/14 ,  H04W92/02

摘要： The invention relates to a local area network including at least one bridge terminal, which bridge terminal is provided for transmitting data between the terminals of at least two sub-networks via a wireless medium. The bridge terminal is alternately connected to the sub-networks for exchanging data. For buffering received data for an unconnected sub-network, the bridge terminal includes an intermediate store.

摘要翻译： 本发明涉及包括至少一个桥接终端的局域网，该桥接终端被提供用于经由无线介质在至少两个子网络的终端之间传输数据。 桥接终端交替连接到用于交换数据的子网络。 为了缓冲未连接的子网络的接收数据，桥接终端包括中间存储器。

公开(公告)号：US07110366B2

公开(公告)日：2006-09-19

申请号：US10080184

申请日：2002-02-20

申请人： Samir N. Hulyalkar ,  Yonggang Du ,  Christoph Herrmann ,  Chiu Ngo ,  Peter Klaus May

发明人： Samir N. Hulyalkar ,  Yonggang Du ,  Christoph Herrmann ,  Chiu Ngo ,  Peter Klaus May

IPC分类号： H04L12/26 ,  H04B7/216

CPC分类号： H04W24/00 ,  H04W24/02 ,  H04W24/10 ,  H04W76/10 ,  H04W84/08 ,  H04W84/18 ,  H04W84/20 ,  H04W88/04

摘要： Centrally controlled wireless networks require reliable communications between the central controller and each of the stations within the wireless networks. The structure of a wireless network is often dynamic, or ad-hoc, as stations enter and exit the network, or are physically relocated. The selection of the central controller for the network may also be dynamic, either because the current central controller desires to exit the network, or because the communication between the current central controller and one or more of the stations is poor. This invention discloses a method and apparatus for assessing the quality of the communication paths among all stations in the network. This assessment is useful as a continual monitor of the quality of the network, and can be utilized to select an alternative central control station based upon the quality of communication paths to and from this station. Additionally, the quality assessment can be utilized to establish relay communication paths, as required.

公开(公告)号：US06901104B1

公开(公告)日：2005-05-31

申请号：US09451268

申请日：1999-11-30

申请人： Yonggang Du ,  Christoph Herrmann

发明人： Yonggang Du ,  Christoph Herrmann

IPC分类号： H04B7/26 ,  H04B1/707 ,  H04L7/00

CPC分类号： H04B1/7075 ,  H04B1/707 ,  H04B1/7093 ,  H04W52/50

摘要： A wireless network is disclosed including at least one base station and a plurality of assigned terminals for exchanging user data and control data. The base station is arranged for transmitting the start time of at least one signaling sequence of at least terminal. For evaluating the signaling sequences transmitted by the terminals, the base station includes a device for correlating a received signaling sequence and for detecting the pulse evolving from a received and correlated signaling sequence. A terminal generates a signaling sequence by folding two code sequences.

摘要翻译： 公开了一种无线网络，包括用于交换用户数据和控制数据的至少一个基站和多个分配的终端。 基站被安排用于发送至少一个终端的至少一个信令序列的开始时间。 为了评估由终端发送的信令序列，基站包括用于对接收到的信令序列进行相关并用于检测从接收和相关信令序列演进的脉冲的装置。 终端通过折叠两个码序列来生成信令序列。