公开(公告)号：US5442684A

公开(公告)日：1995-08-15

申请号：US181878

申请日：1994-01-13

申请人： Tadao Hashimoto ,  Ryoji Hara ,  Yasuhiro Fujimura

发明人： Tadao Hashimoto ,  Ryoji Hara ,  Yasuhiro Fujimura

IPC分类号： H04W8/04 ,  H04W60/00 ,  H04W60/02 ,  H04W84/16 ,  H04M11/00

CPC分类号： H04W60/00 ,  H04W60/02 ,  H04W8/04 ,  H04W84/16

摘要： A method and arrangement of locating cordless units in a wide area cordless telephone system is disclosed. A service area is previously divided into a plurality of small service zones and, a plurality of cordless units are provided for establishing communications with a system controller via a plurality of access stations. The system controller locates the cordless units and stores therein location data thereof. Each of the cordless units also stores the location data thereof applied from the system controller. A cordless unit issues a request signal which includes cordless unit location data. The request signal is received at an access station which in turn checks to determine if the request signal applied thereto is issued from a cordless unit whose location data indicates a service zone belonging to a predetermined service zone group. In the event that the cordless unit location data applied to the access station is found to fall within the predetermined service zone group, the access station relays the request signal applied thereto, together with a signal level of the request signal, to the system controller.

摘要翻译： 公开了一种在广域无绳电话系统中定位无绳单元的方法和装置。 服务区域先前被划分为多个小服务区域，并且提供多个无绳单元，用于经由多个接入站与系统控制器建立通信。 系统控制器定位无绳单元并存储其中的位置数据。 每个无绳单元还存储从系统控制器应用的位置数据。 无绳单元发出包括无绳单元位置数据的请求信号。 该请求信号在接入站接收，接入站进一步检查确定是否从其位置数据指示属于预定服务区域组的服务区的无绳单元发出施加的请求信号。 在应用于接入站的无绳单元位置数据被发现落在预定服务区域组内的情况下，接入站将应用于其的请求信号与请求信号的信号电平中继到系统控制器。