公开(公告)号：US07068677B1

公开(公告)日：2006-06-27

申请号：US09168449

申请日：1998-10-08

申请人： Koji Arai ,  Gen Nakagawa ,  Kenichi Aoki

发明人： Koji Arai ,  Gen Nakagawa ,  Kenichi Aoki

IPC分类号： H04L12/413 ,  H04Q7/24 ,  H04J3/12

CPC分类号： H04W74/0825 ,  H04L7/041 ,  H04W28/06 ,  H04W84/14

摘要： A subscriber radio access system in which it becomes possible to facilitate communications for realizing high throughput and by which a radio LAN communication can be realized even if a radio link section is longer according to the CSMA protocol on Ethernet is provided. The subscriber radio access system includes plural transceiver terminals; and a base station linked to each of the plural transceiver terminals via a radio communication channel, wherein one of the plural transceiver terminals communicates to the other transceiver terminal with an Ethernet packet employing a carrier sense multiple access (CSMA) protocol, of which a packet length is corrected to correspond to a transmission delay time between the one and other transceiver.

摘要翻译： 提供了一种用户无线电接入系统，其中可以促进通信以实现高吞吐量，并且通过其可以实现无线电LAN通信，即使根据以太网上的CSMA协议的无线电链路部分较长。 用户无线电接入系统包括多个收发机终端; 以及经由无线电通信信道链接到多个收发机终端中的每一个的基站，其中多个收发机终端之一与采用载波侦听多路访问（CSMA）协议的以太网分组通信到另一收发机终端，其中分组 长度被校正为对应于一个和另一个收发器之间的传输延迟时间。

公开(公告)号：US06519229B1

公开(公告)日：2003-02-11

申请号：US09175272

申请日：1998-10-20

申请人： Koji Arai ,  Gen Nakagawa

发明人： Koji Arai ,  Gen Nakagawa

IPC分类号： H04L1226

CPC分类号： H04L1/18 ,  H04L1/188 ,  H04W74/08

摘要： A transmission path interface apparatus compatible with a CSMA mode capable of responding to a fault occurring in a transmission path flexibly and at a high speed, including a transmission unit for holding serial transmission information and transmitting a frame modulated by both of the transmission information and a preamble to a CSMA mode transmission path; a reception unit for taking out a loopback frame transmitted by an opposing node in accordance with that frame, restoring the transmission information contained in this, and holding the same; a collision decision unit for determining a correlation between transmission information held by the transmission unit and the reception unit and notifying a result of this to an information source of transmission information; and a collision decision acceleration unit for comparing an elapsed time from a timing when the information source gave the transmission information to the transmission unit to a timing when the transmission information contained in the loopback frame is restored and a threshold value indicating the maximum time of a delay allowed with respect to the transmission of the frame containing the following transmission information and notifying the information source that the former exceeds the latter.

摘要翻译： 一种传输路径接口装置，其与能够灵活地和高速地发送在传输路径中的故障的CSMA模式兼容，包括：用于保存串行传输信息的传输单元，以及传输由传输信息和 CSMA模式传输路径的前导码; 接收单元，用于根据该帧取出由相对节点发送的环回帧，恢复其中包含的传输信息，并保持该传输信息; 冲突判定单元，用于确定由所述发送单元保持的发送信息与所述接收单元之间的相关性，并将其结果通知给发送信息的信息源; 以及冲突判决加速单元，用于将从信息源给出发送信息的定时到发送单元的经过时间与包含在环回帧中的发送信息恢复到的定时进行比较，以及指示最大时间的阈值 相对于包含以下传输信息的帧的发送允许延迟，并且通知信息源前者超过后者。

公开(公告)号：US20090275288A1

公开(公告)日：2009-11-05

申请号：US12437348

申请日：2009-05-07

申请人： Masayuki Fujita ,  Gen Nakagawa

发明人： Masayuki Fujita ,  Gen Nakagawa

IPC分类号： H04B7/26 ,  H04B7/00

CPC分类号： G01S13/825 ,  G01S13/931 ,  G01S2013/9325 ,  G01S2013/9339 ,  G01S2013/9353 ,  G01S2013/936 ,  G01S2013/9375 ,  G01S2013/9378

摘要： In a radio communication system, a first radio communication station transmits a radio signal including information for designating a condition for a radio communication counterpart. A second radio communication station which receives the radio signal transmitted by the one radio communication station, and transmits a response radio signal when a situation of the second radio communication station meets the condition designated by the information included in the radio signal. The condition for a radio communication counterpart is whether the radio communication counterpart moves, and the second radio communication station transmits the response radio signal when the second radio communication station meets the condition that the radio communication counterpart moves.

摘要翻译： 在无线通信系统中，第一无线通信站发送包含用于指定无线通信对方的条件的信息的无线信号。 第二无线电通信站，其接收由所述一个无线电通信站发送的无线电信号，并且当所述第二无线电通信站的情况满足由所述无线电信号中包括的信息指定的条件时，发送响应无线电信号。 无线电通信对方的条件是无线电通信对方是否移动，并且当第二无线电通信站满足无线电通信对方移动的条件时，第二无线电通信站发送响应无线电信号。

公开(公告)号：US08433247B2

公开(公告)日：2013-04-30

申请号：US12437348

申请日：2009-05-07

申请人： Masayuki Fujita ,  Gen Nakagawa

发明人： Masayuki Fujita ,  Gen Nakagawa

IPC分类号： H04B7/00

CPC分类号： G01S13/825 ,  G01S13/931 ,  G01S2013/9325 ,  G01S2013/9339 ,  G01S2013/9353 ,  G01S2013/936 ,  G01S2013/9375 ,  G01S2013/9378

摘要： In a radio communication system, a first radio communication station transmits a radio signal including information for designating a condition for a radio communication counterpart. A second radio communication station which receives the radio signal transmitted by the one radio communication station, and transmits a response radio signal when a situation of the second radio communication station meets the condition designated by the information included in the radio signal. The condition for a radio communication counterpart is whether the radio communication counterpart moves, and the second radio communication station transmits the response radio signal when the second radio communication station meets the condition that the radio communication counterpart moves.

摘要翻译： 在无线通信系统中，第一无线通信站发送包含用于指定无线通信对方的条件的信息的无线信号。 第二无线电通信站，其接收由所述一个无线电通信站发送的无线电信号，并且当所述第二无线电通信站的情况满足由所述无线电信号中包括的信息指定的条件时，发送响应无线电信号。 无线电通信对方的条件是无线电通信对方是否移动，并且当第二无线电通信站满足无线电通信对方移动的条件时，第二无线电通信站发送响应无线电信号。