公开(公告)号：US20150003339A1

公开(公告)日：2015-01-01

申请号：US14144234

申请日：2013-12-30

Applicant: Industrial Technology Research Institute

Inventor： Jia-Ming Chen ,  Jia-Wei Liu ,  Ming-Chien Tseng ,  Shi-Yang Chen

IPC: H04W72/04

CPC classification number: H04B1/48 ,  H04L5/14

Abstract: The disclosure provides an electronic device including a coupler, a transceiver, and a control circuit. The coupler generates a coupled downlink signal according to a downlink signal from a head-end unit. The transceiver switches between the transmission of a downlink signal and the reception of an uplink signal according to a control signal. The control circuit receives the coupled downlink signal, generates a status counting signal according to the power status of the coupled downlink signal, and generates the control signal according to the status counting signal. Only when the level of the coupled downlink signal is lower than an amplitude threshold level with a duration longer than a status counting time, the control circuit converts the status counting signal from a first logic level to a second logic level opposite to the first logic level. Otherwise, the control circuit maintains the status counting signal on the first logic level.

Abstract translation: 本公开提供了一种包括耦合器，收发器和控制电路的电子设备。 耦合器根据来自头端单元的下行链路信号产生耦合的下行链路信号。 收发器根据控制信号在下行链路信号的发送和上行链路信号的接收之间切换。 控制电路接收耦合的下行链路信号，根据耦合的下行链路信号的电源状态产生状态计数信号，并根据状态计数信号产生控制信号。 只有当耦合下行链路信号的电平低于持续时间长于状态计数时间的幅度阈值电平时，控制电路将状态计数信号从第一逻辑电平转换到与第一逻辑电平相反的第二逻辑电平 。 否则，控制电路将状态计数信号保持在第一逻辑电平上。

公开(公告)号：US20130170358A1

公开(公告)日：2013-07-04

申请号：US13727484

申请日：2012-12-26

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Shi-Yang Chen ,  Yi-Ting Wang

IPC: H04L12/56

CPC classification number: H04L47/10 ,  H04L47/11 ,  H04L47/283 ,  H04L47/32

Abstract: A method for assisting with the transmission of TCP packets, which is used in a wireless communication system, including: receiving a plurality of TCP packets from a TCP packet sender and transmitting the TCP packets to a receiver proxy; transmitting a feedback packet to a sender proxy when receiving a TCP packet; calculating a round trip time (RTT) between the sender proxy and the receiver proxy when receiving the feedback packet, and comparing a RTT threshold and the RTT between the sender proxy and receiver proxy; determining whether a network between the sender proxy and the receiver proxy is in a congestion state according to the result of the comparison between the RTT threshold and the RTT; and dropping a TCP packet when the network is in the congestion state.

Abstract translation: 一种用于协助无线通信系统中使用的TCP分组的传输的方法，包括：从TCP分组发送器接收多个TCP分组并将TCP分组发送到接收方代理; 当接收到TCP分组时，向发送方代理发送反馈分组; 计算发送方代理和接收方代理之间的往返时间（RTT），并将RTT阈值与发送方代理和接收方代理之间的RTT进行比较; 根据RTT阈值和RTT之间的比较结果，确定发送方代理和接收方代理之间的网络是否处于拥塞状态; 并在网络处于拥塞状态时丢弃TCP数据包。

公开(公告)号：US09344141B2

公开(公告)日：2016-05-17

申请号：US14144234

申请日：2013-12-30

Applicant: Industrial Technology Research Institute

Inventor： Jia-Ming Chen ,  Jia-Wei Liu ,  Ming-Chien Tseng ,  Shi-Yang Chen

IPC: H04W72/04 ,  H04B1/48 ,  H04L5/14

CPC classification number: H04B1/48 ,  H04L5/14

Abstract: The disclosure provides an electronic device including a coupler, a transceiver, and a control circuit. The coupler generates a coupled downlink signal according to a downlink signal from a head-end unit. The transceiver switches between the transmission of a downlink signal and the reception of an uplink signal according to a control signal. The control circuit receives the coupled downlink signal, generates a status counting signal according to the power status of the coupled downlink signal, and generates the control signal according to the status counting signal. Only when the level of the coupled downlink signal is lower than an amplitude threshold level with a duration longer than a status counting time, the control circuit converts the status counting signal from a first logic level to a second logic level opposite to the first logic level. Otherwise, the control circuit maintains the status counting signal on the first logic level.

Abstract translation: 本公开提供了一种包括耦合器，收发器和控制电路的电子设备。 耦合器根据来自头端单元的下行链路信号产生耦合的下行链路信号。 收发器根据控制信号在下行链路信号的发送和上行链路信号的接收之间切换。 控制电路接收耦合的下行链路信号，根据耦合的下行链路信号的电源状态产生状态计数信号，并根据状态计数信号产生控制信号。 只有当耦合下行链路信号的电平低于持续时间长于状态计数时间的幅度阈值电平时，控制电路将状态计数信号从第一逻辑电平转换到与第一逻辑电平相反的第二逻辑电平 。 否则，控制电路将状态计数信号保持在第一逻辑电平上。

公开(公告)号：US09143450B2

公开(公告)日：2015-09-22

申请号：US13727484

申请日：2012-12-26

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Shi-Yang Chen ,  Yi-Ting Wang

IPC: H04L12/56 ,  H04L12/801 ,  H04L12/841 ,  H04L12/823

CPC classification number: H04L47/10 ,  H04L47/11 ,  H04L47/283 ,  H04L47/32

Abstract: A method for assisting with the transmission of TCP packets, which is used in a wireless communication system, including: receiving a plurality of TCP packets from a TCP packet sender and transmitting the TCP packets to a receiver proxy; transmitting a feedback packet to a sender proxy when receiving a TCP packet; calculating a round trip time (RTT) between the sender proxy and the receiver proxy when receiving the feedback packet, and comparing a RTT threshold and the RTT between the sender proxy and receiver proxy; determining whether a network between the sender proxy and the receiver proxy is in a congestion state according to the result of the comparison between the RTT threshold and the RTT; and dropping a TCP packet when the network is in the congestion state.

Abstract translation: 一种用于协助无线通信系统中使用的TCP分组的传输的方法，包括：从TCP分组发送器接收多个TCP分组并将TCP分组发送到接收方代理; 当接收到TCP分组时，向发送方代理发送反馈分组; 计算发送方代理和接收方代理之间的往返时间（RTT），并将RTT阈值与发送方代理和接收方代理之间的RTT进行比较; 根据RTT阈值和RTT之间的比较结果，确定发送方代理和接收方代理之间的网络是否处于拥塞状态; 并在网络处于拥塞状态时丢弃TCP数据包。