公开(公告)号：US5420864A

公开(公告)日：1995-05-30

申请号：US140467

申请日：1993-10-25

申请人： Steinar Dahlin ,  Walter Muller

发明人： Steinar Dahlin ,  Walter Muller

IPC分类号： H04B7/24 ,  H04B7/26 ,  H04W72/14 ,  H04W74/04 ,  H04W74/08 ,  H04J3/16

CPC分类号： H04W74/002 ,  H04B7/2615 ,  H04W74/0833 ,  H04W74/0875 ,  H04W74/006

摘要： A method for random access in a time divided mobile radio system, for instance an FDMA/TDMA system, which includes digital traffic channels and control channels which are organized so that four traffic channels and two control channels are included in a TDMA-frame. A base station transmits continually flags in the time slots of the control channels. A mobile station desiring access to the system responds by sending a first message word (W1) in the time slot indicated by the base station in a first flag. When the mobile station wishes to transmit several message words, the base station reserves one or more time slots to this end by transmitting the first flag, although this flag now states that these time slots are busy for other mobile stations. Furthermore, the base station transmits a flag (R/N) which states whether or not a message word has been received from the mobile station. The base station can transmit a further flag, which denotes that a given time slot has been reserved for a given mobile station from the very beginning of an access procedure and cannot therefore be used by any other mobile station.

摘要翻译： 一种在分时分时的移动无线电系统（例如FDMA / TDMA系统）中随机接入的方法，其包括数字业务信道和控制信道，这些数据业务信道和控制信道被组织成使得四个业务信道和两个控制信道被包括在TDMA帧中。 基站在控制信道的时隙中连续发送标志。 希望访问系统的移动台通过在第一标志中发送基站所指示的时隙中的第一消息字（W1）来进行响应。 当移动台希望发送多个消息字时，基站通过发送第一标志来为此保留一个或多个时隙，尽管该标志现在表示这些时隙对于其他移动站是忙的。 此外，基站发送表示是否从移动台接收到消息字的标志（R / N）。 基站可以发送另外的标志，其表示从接入过程的开始已经为给定的移动台预留了给定的时隙，因此不能由任何其他移动台使用。