公开(公告)号：US20100254466A1

公开(公告)日：2010-10-07

申请号：US12753179

申请日：2010-04-02

申请人： Chao-Chun Wang ,  Yuh-Ren Jauh ,  Chih-Shi Yee

发明人： Chao-Chun Wang ,  Yuh-Ren Jauh ,  Chih-Shi Yee

IPC分类号： H04L27/00

CPC分类号： H04B7/0632 ,  H04B7/0491 ,  H04B7/0634 ,  H04L5/0023 ,  H04L25/0224

摘要： A communication system includes a trainee communications device and one or more trainer communications devices. The trainee communications device announces a first period of time for beamforming training, switches a receiving antenna pattern to a sector and stays in the sector for a second period of time. The trainer communications devices transmit one or more predetermined bit sequences in the first period of time. The predetermined bit sequences are transmitted in at least one sector. Each of the predetermined bit sequences carries an identifier identifying the transmitting trainer communications device. The trainee communications device further estimates channel characteristics and computes receiving antenna weighting vectors of the trainer communications devices by using the received predetermined bit sequences, respectively, and the trainer communications devices obtain pertinent information including the estimated channel characteristics and receiving time of the predetermined bit sequences about beamforming training from the trainee communications device.

摘要翻译： 通信系统包括实习通信设备和一个或多个教练通信设备。 受训通信设备宣布用于波束成形训练的第一时间段，将接收天线方向图切换到扇区并在该扇区中停留第二时间段。 培训者通信设备在第一时间段内发送一个或多个预定比特序列。 预定比特序列在至少一个扇区中发送。 每个预定比特序列携带识别发射训练器通信设备的标识符。 受训通信装置进一步估计信道特性并通过分别使用接收到的预定比特序列来计算训练者通信装置的接收天线加权向量，并且训练器通信装置获得包括预定比特序列的估计信道特性和接收时间的相关信息 关于来自实习通信设备的波束成形训练。

公开(公告)号：US20090116444A1

公开(公告)日：2009-05-07

申请号：US12317569

申请日：2008-12-27

申请人： Chao-Chun Wang ,  Yung-Ping Hsu ,  Yuh-Ren Jauh

发明人： Chao-Chun Wang ,  Yung-Ping Hsu ,  Yuh-Ren Jauh

IPC分类号： H04W4/00 ,  H04L12/28

CPC分类号： H04W72/085 ,  H04B7/0408 ,  H04W72/0406 ,  H04W72/082

摘要： A method is provided for sharing a communications channel in a wireless communications system. A network coordinating device of the wireless network obtains a first path quality information of each of a first set of one or more communications paths between a first pair of communications devices. The coordinating device also obtains a second path quality information of each of a second set of communications paths between a second pair of communications devices. The coordinating device then determines one or more co-existing communications paths based on the first and the second path quality information in accordance with a predetermined rule. Finally, the coordinating device sends channel resource allocation information to the first pair and the second pair of communications devices to use corresponding co-existing communications paths such that the first pair and the second pair of communications devices communicate over the communications channel during a period of time concurrently.

摘要翻译： 提供了一种在无线通信系统中共享通信信道的方法。 无线网络的网络协调设备获得第一对通信设备之间的一个或多个通信路径的第一组中的每一个的第一路径质量信息。 协调装置还获得第二对通信装置之间的第二组通信路径中的每一个的第二路径质量信息。 协调装置然后根据预定的规则，基于第一和第二路径质量信息确定一个或多个共存的通信路径。 最后，协调设备向第一对和第二对通信设备发送信道资源分配信息以使用相应的共存通信路径，使得第一对和第二对通信设备在通信信道的一段时间内通过通信信道进行通信 时间同时。

公开(公告)号：US6128828A

公开(公告)日：2000-10-10

申请号：US361517

申请日：1999-07-27

申请人： Chao-Chun Wang

发明人： Chao-Chun Wang

IPC分类号： F26B17/20 ,  F26B11/02

CPC分类号： F26B17/205

摘要： A drying machine includes a hot air blower, a housing divided horizontally into plural long chambers having an open upper side, a closed bottom and two longitudinal sides bored with through holes, a screw conveyor respectively positioned in each long chamber, and a motor to rotate all the screw conveyors, and a sending-out screw conveyor positioned on the bottom of the housing. Each screw conveyor has an inner screw and an outer screw twisting in opposite direction for conveying, squeezing, mixing and stirring material at the same time dried by hot air coming from the blower. Material falls down from a funnel on the upper side of the housing and gradually falling down through the through holes and an outlet in an end of the bottom of the highest long chamber and then into a second highest long chamber and so on to the lowest portion of the housing to be conveyed by the sending-out screw conveyor to an exit through which dried material falls down through for collected.

摘要翻译： 干燥机包括热风鼓风机，水平分割成多个具有敞开的上侧，闭合的底部和两个通孔的纵向侧的长箱体的壳体，分别位于每个长室中的螺旋输送机和旋转的马达 所有的螺旋输送机和位于壳体底部的送出螺旋输送机。 每个螺旋输送机都有一个内螺纹和一个外螺纹，用于输送，挤压，混合和搅拌材料的相反方向，同时被来自鼓风机的热空气干燥。 材料从壳体上侧的漏斗下落，并逐渐向下通过通孔和最高长腔室底部末端的出口，然后进入第二高的长腔室等等。 通过发送螺旋输送机输送到通过其收集的干燥物料通过的出口。

公开(公告)号：US20090122708A1

公开(公告)日：2009-05-14

申请号：US12319690

申请日：2009-01-09

申请人： Chao-Chun Wang ,  Chih-Shi Yee ,  Shao Wei Chen

发明人： Chao-Chun Wang ,  Chih-Shi Yee ,  Shao Wei Chen

IPC分类号： H04L12/26

CPC分类号： H04L47/803 ,  H04L47/193 ,  H04L47/70 ,  H04L47/805 ,  H04L47/824 ,  H04L65/1069 ,  H04L65/80 ,  H04W72/0446 ,  H04W72/12

摘要： A method and system is provided for link layer scheduling for networked applications in a coordinator-based communications system. A network-coordinating device receives a request from a networked application to establish a communications session. The request includes a set of session parameters. The network-coordinating device allocates a first transmission opportunity in response to the request. The network-coordinating device allocates successive transmission opportunities based on the set of session parameters without receiving successive requests. The set of session parameters comprises at least one of a predetermined flow control mechanism, a quality-of-service (QoS) requirement, a bandwidth requirement, and an application type. In one embodiment, the predetermined flow control mechanism is additive increase and multiplicative decrease (AIMD) of transmission control protocol (TCP). Using the novel link layer scheduling, the network-coordinating device is able to allocate and adjust successive transmission opportunities to match the upper-layer resource requirement and traffic pattern dynamically.

摘要翻译： 提供了一种用于基于协调器的通信系统中的网络应用的链路层调度的方法和系统。 网络协调设备从网络应用接收请求以建立通信会话。 该请求包括一组会话参数。 网络协调设备响应于该请求分配第一传输机会。 网络协调设备基于一组会话参数分配连续的传输机会，而不接收连续的请求。 该组会话参数包括预定流量控制机制，服务质量（QoS）要求，带宽要求和应用类型中的至少一个。 在一个实施例中，预定流量控制机制是传输控制协议（TCP）的加性增加和乘法减少（AIMD）。 使用新颖的链路层调度，网络协调设备能够分配和调整连续的传输机会，以动态匹配上层资源需求和流量模式。

公开(公告)号：US08982714B2

公开(公告)日：2015-03-17

申请号：US12611206

申请日：2009-11-03

申请人： Yung Ping Hsu ,  Yuh-Ren Jauh ,  Chao-Chun Wang

发明人： Yung Ping Hsu ,  Yuh-Ren Jauh ,  Chao-Chun Wang

IPC分类号： H04L1/00 ,  H04J3/16 ,  H04B17/00 ,  H04L7/00 ,  H04W28/18 ,  H01Q3/26 ,  H01Q3/30 ,  H04B7/06

CPC分类号： H04W28/18 ,  H01Q3/26 ,  H01Q3/30 ,  H04B7/0619 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/0663 ,  H04B7/0695 ,  H04B7/088

摘要： A communication system is provided. A first communications device transmits at least one first message including predetermined bit sequences. A second communications device determines one or more antenna weighting vectors (AWVs) and one or more bitloading vectors (BLVs) by using the first message in accordance with a predetermined rule and transmits a second message including information pertinent to the AWVs and the BLVs to the first communications device. The first communications device further communicates with the second communications device about an AWV selected from the AWVs and the first and second communications devices apply the selected AWV to the corresponding antennas before exchanging data. The data includes a header carrying information pertinent to a BLV selected from the BLVs used to encode the data and a payload is transmitted to the second communications device. The second communications device decodes the data in accordance with the selected BLV.

摘要翻译： 提供通信系统。 第一通信设备发送包括预定比特序列的至少一个第一消息。 第二通信设备根据预定规则通过使用第一消息来确定一个或多个天线加权向量（AWV）和一个或多个比特加载向量（BLV），并将包括与AWV和BLV相关的信息的第二消息发送到 第一通信设备。 第一通信设备还与第二通信设备进一步通信从AWV中选择的AWV，并且第一和第二通信设备在交换数据之前将所选择的AWV应用于对应的天线。 该数据包括一个标题，该报头携带与从用于编码数据的BLV中选择的BLV有关的信息，并且有效载荷被发送到第二通信设备。 第二通信设备根据所选择的BLV对数据进行解码。

公开(公告)号：US08503928B2

公开(公告)日：2013-08-06

申请号：US12480828

申请日：2009-06-09

申请人： Chao-Chun Wang ,  Yuh-Ren Jauh ,  Yung Ping Hsu

发明人： Chao-Chun Wang ,  Yuh-Ren Jauh ,  Yung Ping Hsu

IPC分类号： H04B7/165

CPC分类号： H04B7/0617 ,  H04B7/0695

摘要： A communications system including communications devices is provided. A communications device, a trainer, generates at least one concatenated training sequence, transmits the at least one concatenated training sequence, and receives one or more response messages describing corresponding channel characteristics from at least one of the rest of the plurality of communications devices. One or more of the rest of the plurality of communications devices, trainees, each receives the at least one concatenated training sequence, determines channel characteristics between the trainer and a trainee according to the at least one received concatenated training sequence, embeds channel characteristics information to generate at least one of the response messages, and transmits the response message.

摘要翻译： 提供包括通信设备的通信系统。 通信设备，培训者，生成至少一个连接的训练序列，发送所述至少一个级联的训练序列，并且从所述多个通信设备的其余部分中的至少一个接收描述对应的信道特征的一个或多个响应消息。 多个通信设备中的一个或多个通信设备接收者每个接收至少一个级联训练序列，根据至少一个接收到的连接的训练序列确定训练者和受训者之间的信道特征，将信道特征信息嵌入到 生成响应消息中的至少一个，并发送响应消息。

公开(公告)号：US08214712B2

公开(公告)日：2012-07-03

申请号：US12608114

申请日：2009-10-29

申请人： Chao-Chun Wang

发明人： Chao-Chun Wang

IPC分类号： G06F11/00

CPC分类号： H04L1/1887 ,  H04W74/02

摘要： A communications system is provided. A first communications device requests one or more dedicated service periods, via a request, to transmit a high rate real-time streaming data. A second communications device receives the request and schedules the dedicated service periods and one or more contention based periods. A third communications device receives the high rate real-time streaming data and requests the first communications device to re-transmit a portion of the high rate real-time streaming data. The request includes information about the high rate real-time streaming data and information pertinent to a probability of re-transmission. The contention based periods are scheduled to provide the first communications device having higher priority over communications devices of the communications system. The first communications device transmits the high rate real-time streaming data using the dedicated service periods, and re-transmits the portion of the high rate real-time streaming data using the contention based periods.

摘要翻译： 提供通信系统。 第一通信设备经由请求请求一个或多个专用服务周期来发送高速率实时流数据。 第二通信设备接收请求并安排专用服务周期和一个或多个基于争用的周期。 第三通信设备接收高速率实时流数据，并请求第一通信设备重传高速率实时流数据的一部分。 该请求包括关于高速率实时流数据和与重传概率有关的信息。 调度基于争用的周期被调度为提供与通信系统的通信设备相比具有更高优先级的第一通信设备。 第一通信设备使用专用服务周期发送高速率实时流数据，并且使用基于争用的时段重新发送高速率实时流数据的部分。

公开(公告)号：US08044877B2

公开(公告)日：2011-10-25

申请号：US12453570

申请日：2009-05-15

申请人： Chao-Chun Wang ,  Hui-Ling Lan ,  Jung-Kun Hsieh

发明人： Chao-Chun Wang ,  Hui-Ling Lan ,  Jung-Kun Hsieh

IPC分类号： H01Q1/36

CPC分类号： H01Q1/38 ,  H01Q9/27 ,  H01Q9/42

摘要： An antenna includes a substrate having a first layer, a second layer, a third layer and a fourth layer, and an antenna unit having a first pattern being of a substantially coiled shape and printed on the first layer, a second pattern being of a meandering shaped and printed on the second layer, a third pattern being of a meandering shaped and printed on a third layer, and a fourth pattern being of a substantially coiled shaped and printed on the fourth layer. The first pattern, the second pattern, the third pattern and the fourth pattern are of a serial connection. The free end of the first pattern connects a feeding point. The free end of the fourth pattern connects a grounding point. Thus, the antenna has advantages of compact size and low cost, due to the antenna unit printed on the substrate and the pattern of the antenna unit.

摘要翻译： 一种天线包括具有第一层，第二层，第三层和第四层的衬底，以及天线单元，其具有基本上盘绕的形状的第一图案并印刷在第一层上，第二图案是曲折的 形状并印刷在第二层上，第三图案是曲折形状并印刷在第三层上，第四图案基本上是螺旋形并印刷在第四层上。 第一图案，第二图案，第三图案和第四图案是串行连接。 第一图案的自由端连接一个馈送点。 第四个模式的自由端连接一个接地点。 因此，由于天线单元印刷在基板上和天线单元的图案上，天线具有紧凑的尺寸和低成本的优点。

公开(公告)号：US20090318091A1

公开(公告)日：2009-12-24

申请号：US12480828

申请日：2009-06-09

申请人： Chao-Chun Wang ,  Yuh-Ren Jauh ,  Yung Ping Hsu

发明人： Chao-Chun Wang ,  Yuh-Ren Jauh ,  Yung Ping Hsu

IPC分类号： H04B17/00

CPC分类号： H04B7/0617 ,  H04B7/0695

摘要： A communications system including communications devices is provided. A communications device, a trainer, generates at least one concatenated training sequence, transmits the at least one concatenated training sequence, and receives one or more response messages describing corresponding channel characteristics from at least one of the rest of the plurality of communications devices. One or more of the rest of the plurality of communications devices, trainees, each receives the at least one concatenated training sequence, determines channel characteristics between the trainer and a trainee according to the at least one received concatenated training sequence, embeds channel characteristics information to generate at least one of the response messages, and transmits the response message.

摘要翻译： 提供包括通信设备的通信系统。 通信设备，培训者，生成至少一个连接的训练序列，发送所述至少一个级联的训练序列，并且从所述多个通信设备的其余部分中的至少一个接收描述对应的信道特征的一个或多个响应消息。 多个通信设备中的一个或多个通信设备接收者每个接收至少一个级联训练序列，根据至少一个接收到的连接的训练序列确定训练者和受训者之间的信道特征，将信道特征信息嵌入到 生成响应消息中的至少一个，并发送响应消息。

公开(公告)号：US20200267766A1

公开(公告)日：2020-08-20

申请号：US16277872

申请日：2019-02-15

申请人： Yongho SEOK ,  Chao-Chun Wang ,  James Chih-Shi YEE

发明人： Yongho SEOK ,  Chao-Chun Wang ,  James Chih-Shi YEE

IPC分类号： H04W74/08 ,  H04W74/00 ,  H04W60/00 ,  H04W72/04 ,  H04W72/12

摘要： System and method of using an AP to individually controlling RTS/CTS duration thresholds for multiple STAs in a WLAN. In response to a STA's association request, the AP determines a duration threshold specific to the STA and encloses this information in an association request response for transmission to the STA. By using a broadcast frame, the AP may instruct multiple STAs to uniformly update their stored duration thresholds. For example, if the duration threshold field in the beacon frame is set to 0, the multiple STAs preserve their current duration thresholds; if the field is set to a non-zero value less than 1023, the multiple STAs all update their duration thresholds to the non-zero value; if this field is set to 1023, the multiple STAs disable the RTS/CTS transmissions. Based on a current threshold and pertinent policies, an STA can decide whether to initiate an RTS/CTS transmission sequence.