专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06771963B1 Triggering handdowns and handoffs of mobile stations between bordering cells of cellular wireless communication systems 有权
标题翻译：在蜂窝无线通信系统的接口小区之间触发移动台的切换和切换
公开(公告)号：US06771963B1
公开(公告)日：2004-08-03
申请号：US09135191
申请日：1998-08-17
申请人： Terry Si-Fong Cheng , Ching Huang , Yuen-Yin L. Koo , Shen-De Lin , Carl Francis Weaver , Wen-Yi Kuo
发明人： Terry Si-Fong Cheng , Ching Huang , Yuen-Yin L. Koo , Shen-De Lin , Carl Francis Weaver , Wen-Yi Kuo
IPC分类号： H04Q720
CPC分类号： H04W52/242 , H04W36/30
摘要： A procedure for triggering a handdown or a handoff a mobile station served by a base station of a cellular wireless communication system. A tolerable path loss for signal links between the base station and a mobile station located within the base station's cell, is initially determined. A control signal is radiated at a known transmit power level from the base station over its cell. A receive power level threshold is determined for the control signal for reception by the mobile station, according to the transmit power level and the tolerable path loss. A handoff of the mobile station is triggered after deriving the received power level of the control signal at the mobile station, and determining that the received power level is less than the receive power level threshold. In one embodiment, a mobile station reports to a serving base station only after the former determines that the received power level of a control signal from the base station is less than a threshold level initially provided to the mobile station by the base station. The procedure is applicable, e.g., to base station cells of a first CDMA cellular system which cells border on cells of an analog (AMPS) or a second CDMA cellular system.
摘要翻译：用于触发由蜂窝无线通信系统的基站服务的移动台的切换或切换的过程。最初确定基站和位于基站小区内的移动台之间的信号链路的可容忍路径损耗。控制信号以已知的发射功率电平从基站在其小区上辐射。根据发射功率电平和容许路径损耗，确定移动台接收控制信号的接收功率电平门限。在移动站获得控制信号的接收功率电平之后触发移动台的越区切换，并确定接收功率电平小于接收功率电平门限。在一个实施例中，移动台仅在前者确定来自基站的控制信号的接收功率电平小于由基站最初提供给移动台的阈值电平之前才向服务基站报告。该过程例如适用于第一CDMA蜂窝系统的基站小区，该小区在模拟（AMPS）或第二CDMA蜂窝系统的小区上边界。

IPRDB

热门服务

关于我们

友情链接

联系方式