公开(公告)号：EP0035230A2

公开(公告)日：1981-09-09

申请号：EP81101355.6

申请日：1981-02-25

申请人： International Business Machines Corporation

发明人： Alvarez, Joseph Anthony, III ,  Brennen, John Francis ,  Krug, Robert William ,  Gobioff, Bruce Dean ,  Shabe, John

IPC分类号： H04B7/19 ,  H04J3/17 ,  H04H1/00

CPC分类号： H04B7/18523 ,  H04B7/2643

摘要： A method and apparatus are disclosed for conducting broadcast, multipoint, and conference communications in a TDMA network at various data rates while simultaneously conducting point-to-point communications at other data rates, either between local ports or between geographically remote ports during time intervals within a TDMA burst, which are not necessarily predefined. The disclosed apparatus appends a direct destination address to each point-to-point port communication for transmission over a communications link, to directly address the intended destination port. The disclosed invention appends an indirect destination address to each broadcast communication transmitted over the communications link. A broadcast memory (375) is provided at the receiving end of the communications link, for storing correlated direct addresses which are accessed by the indirect destination addresses, to directly address a plurality of intended destination ports. In this manner, both point-to-point and broadcast-type communications can be carried out for a variety of data rates, during time intervals which are not predetermined within the TDMA burst, and with a high degree of connectivity.

摘要翻译： 公开了用于以各种数据速率在TDMA网络中进行广播，多点和会议通信的方法和装置，同时在本地端口之间或在地理上远程端口之间的时间间隔期间以其他数据速率进行点对点通信 TDMA突发，其不一定是预定义的。 所公开的设备将直接目的地地址附加到每个点对点端口通信，以便通过通信链路进行传输，以直接地寻址预定的目的地端口。 所公开的发明将间接目的地地址附加到通过通信链路发送的每个广播通信。 广播存储器（375）设置在通信墨水的接收端，用于存储由间接目的地地址访问的相关直接地址，以直接寻址多个预定目的地端口。 以这种方式，可以在TDMA突发中未预先确定的时间间隔内以及具有高度连通性的时间间隔内对各种数据速率进行点对点和广播型通信。

公开(公告)号：EP0035230B1

公开(公告)日：1985-06-12

申请号：EP81101355.6

申请日：1981-02-25

申请人： International Business Machines Corporation

发明人： Alvarez, Joseph Anthony, III ,  Brennen, John Francis ,  Krug, Robert William ,  Gobioff, Bruce Dean ,  Shabe, John

IPC分类号： H04B7/19 ,  H04J3/17 ,  H04H1/00

CPC分类号： H04B7/18523 ,  H04B7/2643

公开(公告)号：EP0035232B1

公开(公告)日：1985-05-15

申请号：EP81101373.9

申请日：1981-02-25

申请人： International Business Machines Corporation

发明人： Alvarez, Joseph Anthony, III ,  Shabe, John

IPC分类号： H04B7/19 ,  H04J3/06

CPC分类号： H04B7/2126 ,  H04B7/18523 ,  H04B7/2643

公开(公告)号：EP0035232A3

公开(公告)日：1981-12-30

申请号：EP81101373

申请日：1981-02-25

申请人： International Business Machines Corporation

发明人： Alvarez, Joseph Anthony, III ,  Shabe, John

IPC分类号： H04J03/06 ,  H04B07/19

CPC分类号： H04B7/2126 ,  H04B7/18523 ,  H04B7/2643

摘要： A method and apparatus are disclosed for acquiring transmit synchronization at a secondary station with the periodic frame reference bursts from a reference station in a TDMA network in an improved manner to enable the use of full power initial acquisition bursts while also reducing the bandwidth required to complete the initial acquisition operation. During the first phase, the apparatus at the secondary station bursts an initial acquisition burst during a relatively wide interval in the traffic portion of a TDMA frame and measures a propagation delay factor. The apparatus then adds the propagation delay factor to the receive frame timing synchronized with the reception of the frame reference bursts at the secondary station to obtain a more accurate adjusted transmit frame timing. The more accurate frame timing is then employed in a second phase to burst a transmit reference burst from the secondary station during a relatively narrower interval in the control portion of periodic, non-consecutive ones of the TDMA frames and the apparatus measures a propagation delay correction factor. The propagation delay correction factor is then used to adjust the phase of the transmit frame timing so as to maintain the synchronization of the secondary station with the reference station. At the end of the second phase the secondary stations normal traffic transmission operations can take place, with the transmit reference burst being periodically transmitted in the control portion of non-TDMA frames in order to achieve a long-term of synchronization between the secondary the reference station. The dual use of the traf- assigned to the secondary station for both the of the transmit clocks of the station dur- phase and the transmission of normal traffic or other stations during the second phase of acquisition for the station enables the use of a full acquisition burst, while reducing the overall requirements for the acquisition operation by the function with the transmit reference burst substantially less bandwidth due to its nar- interval and less frequent transmission.

公开(公告)号：EP0035230A3

公开(公告)日：1981-12-30

申请号：EP81101355

申请日：1981-02-25

申请人： International Business Machines Corporation

发明人： Alvarez, Joseph Anthony, III ,  Brennen, John Francis ,  Krug, Robert William ,  Gobioff, Bruce Dean ,  Shabe, John

IPC分类号： H04B07/19 ,  H04J06/00 ,  H04H01/00

CPC分类号： H04B7/18523 ,  H04B7/2643

摘要： A method and apparatus are disclosed for conducting broadcast, multipoint, and conference communications in a TDMA network at various data rates while simultaneously conducting point-to-point communications at other data rates, either between local ports or between geographically remote ports during time intervals within a TDMA burst, which are not necessarily predefined. The disclosed apparatus appends a direct destination address to each point-to-point port communication for transmission over a communications link, to directly address the intended destination port. The disclosed invention appends an indirect destination address to each broadcast communication transmitted over the communications link. A broadcast memory (375) is provided at the receiving end of the communications link, for storing correlated direct addresses which are accessed by the indirect destination addresses, to directly address a plurality of intended destination ports. In this manner, both point-to-point and broadcast-type communications can be carried out for a variety of data rates, during time intervals which are not predetermined within the TDMA burst, and with a high degree of connectivity.

公开(公告)号：EP0035232A2

公开(公告)日：1981-09-09

申请号：EP81101373.9

申请日：1981-02-25

申请人： International Business Machines Corporation

发明人： Alvarez, Joseph Anthony, III ,  Shabe, John

IPC分类号： H04B7/19 ,  H04J3/06

CPC分类号： H04B7/2126 ,  H04B7/18523 ,  H04B7/2643

摘要： A method and apparatus are disclosed for acquiring transmit synchronization at a secondary station with the periodic frame reference bursts from a reference station in a TDMA network in an improved manner to enable the use of full power initial acquisition bursts while also reducing the bandwidth required to complete the initial acquisition operation. During the first phase, the apparatus at the secondary station bursts an initial acquisition burst during a relatively wide interval in the traffic portion of a TDMA frame and measures a propagation delay factor. The apparatus then adds the propagation delay factor to the receive frame timing synchronized with the reception of the frame reference bursts at the secondary station to obtain a more accurate adjusted transmit frame timing. The more accurate frame timing is then employed in a second phase to burst a transmit reference burst from the secondary station during a relatively narrower interval in the control portion of periodic, non-consecutive ones of the TDMA frames and the apparatus measures a propagation delay correction factor. The propagation delay correction factor is then used to adjust the phase of the transmit frame timing so as to maintain the synchronization of the secondary station with the reference station. At the end of the second phase the secondary stations normal traffic transmission operations can take place, with the transmit reference burst being periodically transmitted in the control portion of non-TDMA frames in order to achieve a long-term of synchronization between the secondary the reference station. The dual use of the traf- assigned to the secondary station for both the of the transmit clocks of the station dur- phase and the transmission of normal traffic or other stations during the second phase of acquisition for the station enables the use of a full acquisition burst, while reducing the overall requirements for the acquisition operation by the function with the transmit reference burst substantially less bandwidth due to its nar- interval and less frequent transmission.

摘要翻译： 一种方法和装置，光盘游离缺失，用来获取与来自在TDMA网络中的基准站的周期性帧基准脉冲串在改进的方式次站发送同步，以便能够使用全功率的初始捕获突发的同时从而减少所需的带宽来完成 初始捕获操作。 在第一阶段期间，在次级站中的装置突发在一个TDMA帧的业务部分相对宽的间隔期间突发的初始捕获，并且测量的传播延迟的因素。 然后，该设备增加了传播延迟因子在次站处与框架参考脉冲串的接收同步，以获得更精确的调整后的发射帧定时接收帧定时。 更准确的帧定时，然后在第二阶段中采用的爆裂在TDMA帧的周期性的，非连续的一控制部分和所述装置测量的传播延迟校正的相对较窄的间隔期间从所述次站突发发送参考 因素。 然后传播延迟校正系数被用于调整所述发射帧定时的相位，以便保持与基准站的副站的同步。 在第二阶段结束时的次站的正常话务传输操作可以发生，与发送参考脉冲串是在非控制部定期反mitted