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    Data transmission rate control method and system in upward vertical handover in overlay network environment
    1.
    发明授权
    Data transmission rate control method and system in upward vertical handover in overlay network environment 有权
    覆盖网络环境中上行垂直切换的数据传输速率控制方法和系统

    公开(公告)号：US09319331B2

    公开(公告)日：2016-04-19

    申请号：US14111827

    申请日：2012-04-13

    申请人： Ju-Wook Jang ,  Seung Su Kim

    发明人： Ju-Wook Jang ,  Seung Su Kim

    IPC分类号： H04L12/807 ,  H04L1/18 ,  H04W36/02 ,  H04W28/02 ,  H04W36/00 ,  H04L12/801 ,  H04L1/00

    CPC分类号： H04L47/27 ,  H04L1/1809 ,  H04L1/187 ,  H04L1/188 ,  H04L47/193 ,  H04L2001/0092 ,  H04W28/0226 ,  H04W28/0242 ,  H04W28/0289 ,  H04W36/0005 ,  H04W36/02

    摘要： Provided is a data transmission rate control method in upward vertical handover in an overlay network environment, including: a TCP (Transmission Control Protocol) sender checking whether or not a retransmission timeout event occurs while communicating with a TCP receiver through a dual interface in a TCP scheme; the TCP sender storing a sequence number of a packet having the largest sequence number among transmitting packets, and after that, performing congestion control if the retransmission timeout event occurs; the TCP sender checking whether or not ACK signal corresponding to a sequence number which is equal to or smaller than the stored sequence number is received after the TCP sender performs the congestion control; and the TCP sender determining to execute upward vertical handover if the ACK signal is received.

    摘要翻译： 提供了一种覆盖网络环境中的向上垂直切换中的数据传输速率控制方法，包括：TCP（传输控制协议）发送器，通过TCP中的双接口与TCP接收器通信时检查是否发生重传超时事件 方案; TCP发送方在发送分组之间存储具有最大序列号的分组的序列号，之后，如果发生重传超时事件则执行拥塞控制; 在TCP发送者执行拥塞控制之后，TCP发送方检查对应于等于或小于所存储的序列号的序列号的ACK信号是否被接收; 如果接收到ACK信号，则TCP发送方确定执行向上垂直切换。

    Preparation of polyimide foam
    3.
    发明授权
    Preparation of polyimide foam 失效
    聚酰亚胺泡沫的制备

    公开(公告)号：US06172127B2

    公开(公告)日：2001-01-09

    申请号：US09151735

    申请日：1998-09-11

    申请人： Kil Yeong Choi ,  Jae Heung Lee ,  Sung Goo Lee ,  Mi Hie Yi ,  Seung Su Kim

    发明人： Kil Yeong Choi ,  Jae Heung Lee ,  Sung Goo Lee ,  Mi Hie Yi ,  Seung Su Kim

    IPC分类号： C08J902

    CPC分类号： C08J9/02 ,  C08G73/1021 ,  C08G73/1028 ,  C08J9/28 ,  C08J2379/08

    摘要： The invention herein relates to a process of preparing a novel polyimide foam having superior heat-resistance, flame retardancy, homogeneous size and distribution of cells, and low density, wherein a polyimide precursor in a granular form is prepared by means of using heterocyclic amine as catalyst and then foaming. According to the present invention, the preparing process of a polyimide foam comprises reacting aromatic carboxylic acid or the anhydrides thereof with an excess of aliphatic univalent alcohol to yield an aromatic ester solution. To the aromatic ester solution, divalent amines or the mixture thereof were added in the equivalent amount of said carboxylic acid or the anhydrides thereof in addition to a catalyst and surfactant to yield a polyimide. Then, the precursor in a granular form mixture was imidized while foaming by means of pre-heating and then heating in a microwave oven, after which was cured at a high temperature. Consequently, the present invention has the effect of providing a preparing process for a polyimide foam with superior heat-resistance and heat-insulating property, which can be widely used as substrate in aerospace, submarine, special ship, and high-speed train.

    摘要翻译： 本发明涉及一种制备具有优异的耐热性，阻燃性，均匀尺寸和细胞分布以及低密度的新型聚酰亚胺泡沫的方法，其中通过使用杂环胺作为颗粒形式制备颗粒形式的聚酰亚胺前体 催化剂，然后发泡。根据本发明，聚酰亚胺泡沫的制备方法包括使芳族羧酸或其酸酐与过量的脂肪族单价醇反应，得到芳族酯溶液。 除了催化剂和表面活性剂之外，向芳族酯溶液中加入等量的所述羧酸或其酸酐的二价胺或其混合物以产生聚酰亚胺。 然后，将颗粒状混合物中的前体通过预热加热发泡，然后在微波炉中加热，然后在高温下固化。因此，本发明具有提供制备方法 具有优异的耐热性和隔热性的聚酰亚胺泡沫，可广泛用作航空航天，潜艇，专用船和高速列车的基板。

    DATA TRANSMISSION RATE CONTROL METHOD AND SYSTEM IN UPWARD VERTICAL HANDOVER IN OVERLAY NETWORK ENVIRONMENT
    5.
    发明申请
    DATA TRANSMISSION RATE CONTROL METHOD AND SYSTEM IN UPWARD VERTICAL HANDOVER IN OVERLAY NETWORK ENVIRONMENT 有权
    数据传输速率控制方法和系统在覆盖网络环境中的上行垂直切换

    公开(公告)号：US20140086048A1

    公开(公告)日：2014-03-27

    申请号：US14111827

    申请日：2012-04-13

    申请人： Ju-Wook Jang ,  Seung Su Kim

    发明人： Ju-Wook Jang ,  Seung Su Kim

    IPC分类号： H04L12/807 ,  H04W36/00 ,  H04W28/02

    CPC分类号： H04L47/27 ,  H04L1/1809 ,  H04L1/187 ,  H04L1/188 ,  H04L47/193 ,  H04L2001/0092 ,  H04W28/0226 ,  H04W28/0242 ,  H04W28/0289 ,  H04W36/0005 ,  H04W36/02

    摘要： Provided is a data transmission rate control method in upward vertical handover in an overlay network environment, including: a TCP (Transmission Control Protocol) sender checking whether or not a retransmission timeout event occurs while communicating with a TCP receiver through a dual interface in a TCP scheme; the TCP sender storing a sequence number of a packet having the largest sequence number among transmitting packets, and after that, performing congestion control if the retransmission timeout event occurs; the TCP sender checking whether or not ACK signal corresponding to a sequence number which is equal to or smaller than the stored sequence number is received after the TCP sender performs the congestion control; and the TCP sender determining to execute upward vertical handover if the ACK signal is received.

    摘要翻译： 提供了一种覆盖网络环境中的向上垂直切换中的数据传输速率控制方法，包括：TCP（传输控制协议）发送器，通过TCP中的双接口与TCP接收器通信时检查是否发生重传超时事件 方案; TCP发送方在发送分组之间存储具有最大序列号的分组的序列号，之后，如果发生重传超时事件则执行拥塞控制; 在TCP发送者执行拥塞控制之后，TCP发送方检查对应于等于或小于所存储的序列号的序列号的ACK信号是否被接收; 如果接收到ACK信号，则TCP发送方确定执行向上垂直切换。