公开(公告)号：US3848093A

公开(公告)日：1974-11-12

申请号：US33640273

申请日：1973-02-28

Applicant: ERICSSON TELEFON AB L M

Inventor： EDSTROM N

IPC: H04B7/212 ,  H04J3/17 ,  H04J5/00

CPC classification number: H04J3/172 ,  H04B7/2121

Abstract: The invention relates to a method and a device for increasing the transmission capacity of a time division synchronous satellite telecommunication system in which each ground station has a control processor which is arranged to assign continuously time slots out of a time slot pool to the ground stations in proportion to their varying demands for transmission capacity. According to the invention, it is possible to apply speech interpolation not only to such time slots that are constantly assigned to the ground stations and are transmitted via permanently assigned transmission channels but also to reassignable time slots of the pool, transmitted via temporarily assigned transmission channels.

Abstract translation: 本发明涉及一种用于提高时分同步卫星电信系统的传输容量的方法和装置，其中每个地面站具有一个控制处理器，该控制处理器被设置成将时隙池中的时隙连续地分配给地面站 与传输能力的不同要求成比例。 根据本发明，不仅可以将语音内插应用于经常被分配给地面站并经由永久分配的传输信道发送的时隙，而且还可以经由临时分配的传输信道发送的可重新分配的时隙 。

公开(公告)号：US3818142A

公开(公告)日：1974-06-18

申请号：US32749373

申请日：1973-01-29

Applicant: ERICSSON TELEFON AB L M

Inventor： EDSTROM N ,  LINDQVIST S ,  SPARRENDAHL G

IPC: H04Q11/04 ,  H04J3/00

CPC classification number: H04Q11/0407

Abstract: A PCM exchange comprising a space stage arranged between time stages is provided with signal receivers and switching order units connected to the space stage. The signal receivers receive signal words each associated with one of the PCM channels transferred on highways through the space stage, for comparison with corresponding signal words previously stored in a state information memory. Upon deviation in the comparison computer of known type computes by means of the signal words switching order information which defines the incoming and outgoing PCM channels for a communication path through the exchange. A control logic selects one of the switching order units and transfers to it the computed switching order information. The switching order unit detects a free time slot for the path through the space stage and the complete switching order information including even the free time slot is transferred not only to switching order memories in the time stages but also to the state information memory. For disconnecting a path, the control logic feeds disconnecting information defining both the time slot and the incoming highway used during the connection to the switching order unit selected for the connection. Through the aid of the disconnecting information the corresponding switching order and state information memories are zero-set.

Abstract translation: 包括设置在时间段之间的空间级的PCM交换器设置有连接到空间级的信号接收器和开关顺序单元。 信号接收器接收每个与在高速公路上通过空间级传送的PCM信道之一相关联的信号字，用于与先前存储在状态信息存储器中的相应信号字进行比较。 在已知类型的比较计算机中的偏差通过定义用于通过交换的通信路径的输入和输出PCM信道的信号字切换顺序信息计算。 控制逻辑选择切换顺序单元中的一个，并向其传送计算出的切换顺序信息。 切换顺序单元检测通过空间级的路径的空闲时隙，并且包括空闲时隙的完整切换顺序信息不仅传送到时段中的切换顺序存储器，而且也传送到状态信息存储器。 为了断开路径，控制逻辑将连接期间使用的时隙和进入的公路的断开信息提供给为连接选择的切换顺序单元。 通过断开信息的帮助，相应的切换顺序和状态信息存储器被置零。