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    • 18. 发明授权
    • Service area expansion method for mobile communication system and method of processing calls between service areas
    • 移动通信系统的服务区域扩展方法和服务区域之间的呼叫处理方法
    • US06332079B1
    • 2001-12-18
    • US09526599
    • 2000-03-16
    • Tae-Hoon KimJae-Hoon KimJoon-Sun Uhr
    • Tae-Hoon KimJae-Hoon KimJoon-Sun Uhr
    • H04Q720
    • H04W16/26H04W36/06
    • Disclosed is a service area expansion method and a method of processing calls between service areas in a mobile communication system adopting a CDMA system like a DCS (digital cellular system) or a PCS (personal communication system), in which a reference clock is delayed and an application specific integrated circuit (ASIC) of a plurality of CSMs (cell site modems) in a base station is controlled using such a delayed reference clock so as to expand service area by each CSM ASIC unit, and a handoff area is positioned between expanded service areas so as to perform a normal call processing. A base station of a CDMA mobile communication system is provided with a plurality of CSM ASICs having the same configuration and a delayed reference clock is fed to each CSM ASIC, thus expanding service area. Such a communication service may be provided to the coastal area where a base station is easily installed. A need to install a base station to the wide area having small subscribers is eliminated, decreasing a cost for base station installation.
    • 公开了一种服务区域扩展方法和处理采用诸如DCS(数字蜂窝系统)或PCS(个人通信系统)的CDMA系统的移动通信系统中的呼叫的方法,其中参考时钟被延迟, 使用这种延迟的参考时钟来控制基站中的多个CSM(小区站点调制解调器)的专用集成电路(ASIC),以便通过每个CSM ASIC单元扩展服务区域,并且切换区域位于扩展 服务区域,以便执行正常呼叫处理。 CDMA移动通信系统的基站设置有具有相同配置的多个CSM ASIC,并且将延迟的参考时钟馈送到每个CSM ASIC,从而扩展服务区域。 可以将这样的通信服务提供给容易安装基站的沿海地区。 消除了在具有小用户的广域上安装基站的需要,降低了基站安装的成本。