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1. 发明授权

US5412658A Beacon detection method and apparatus for sharing spectrum between wireless communications systems and fixed microwave systems 失效
标题翻译：无线通信系统和固定微波系统之间共享频谱的信标检测方法和装置
公开(公告)号：US5412658A
公开(公告)日：1995-05-02
申请号：US142553
申请日：1993-10-22
申请人： Hamilton W. Arnold , Daniel M. Devasirvathan , Nelson R. Sollenberger , Larrie G. Sutliff , Vijay K. Varma
发明人： Hamilton W. Arnold , Daniel M. Devasirvathan , Nelson R. Sollenberger , Larrie G. Sutliff , Vijay K. Varma
IPC分类号： H04W16/14 , H04Q7/00 , H04B7/26 , H04B15/00
CPC分类号： H04W16/14
摘要： A system for spectrum sharing between a point-to-point microwave system and a TDM/TDMA wireless communications system in a common geographical area is described. Each transmitter/receiver in the point-to-point microwave system transmits, in addition to its normal information signal, a beacon signal which is uniquely associated with the receiver receive frequency. In selecting uplink and downlink frequencies for port assignment, each port monitors the beacon frequencies and selects as uplink and downlink frequencies, frequencies which associated beacons fall below a predetermined threshold. Similarly, before accessing the wireless communications system through a selected port, a portable monitors the beacons associated with the selected port's uplink frequency. If the beacon associated with the uplink frequency exceeds a threshold, the portable selects an alternate port through which to access the network. Also, during a call an emergency link transfer to another port is made if the monitored beacon corresponding to the portable's uplink frequency rises above the threshold.
摘要翻译：描述了在公共地理区域中的点对点微波系统和TDM / TDMA无线通信系统之间的频谱共享系统。点对点微波系统中的每个发射机/接收机除了正常的信息信号之外还发送与接收机接收频率唯一相关联的信标信号。在选择用于端口分配的上行链路和下行链路频率时，每个端口监视信标频率并选择上行链路和下行链路频率，相关信标的频率低于预定阈值。类似地，在通过所选择的端口访问无线通信系统之前，便携式监视与所选端口的上行链路频率相关联的信标。如果与上行链路频率相关联的信标超过阈值，则便携式选择用于接入网络的备用端口。此外，在呼叫期间，如果与便携式上行链路频率对应的被监视信标上升到阈值以上，则进行到另一端口的紧急链路传送。

2. 发明授权

US5361258A Beacon detection system for sharing spectrum between wireless communications systems and fixed microwave systems 失效
标题翻译：信标检测系统，用于在无线通信系统和固定微波系统之间共享频谱
公开(公告)号：US5361258A
公开(公告)日：1994-11-01
申请号：US142533
申请日：1993-10-22
申请人： Hamilton W. Arnold , Daniel M. Devasirvathan , Nelson R. Sollenberger , Larrie G. Sutliff , Vijay K. Varma
发明人： Hamilton W. Arnold , Daniel M. Devasirvathan , Nelson R. Sollenberger , Larrie G. Sutliff , Vijay K. Varma
IPC分类号： H04B7/26 , H04W16/14 , H04W16/32 , H04Q7/00 , H04B15/00
CPC分类号： H04W16/14 , H04B7/2621 , H04W16/32
摘要： A system for spectrum sharing between a point-to-point microwave system and a TDM/TDMA wireless communications system in a common geographical area is described. Each transmitter/receiver in the point-to-point microwave system transmits, in addition to its normal information signal, a beacon signal which is uniquely associated with the receiver receive frequency. In selecting uplink and downlink frequencies for port assignment, each port monitors the beacon frequencies and selects as uplink and downlink frequencies, frequencies which associated beacons fall below a predetermined threshold. Similarly, before accessing the wireless communications system through a selected port, a portable monitors the beacons associated with the selected port's uplink frequency. If the beacon associated with the uplink frequency exceeds a threshold, the portable selects an alternate port through which to access the network. Also, during a call an emergency link transfer to another port is made if the monitored beacon corresponding to the portable's uplink frequency rises above the threshold.
摘要翻译：描述了在公共地理区域中的点对点微波系统和TDM / TDMA无线通信系统之间的频谱共享系统。点对点微波系统中的每个发射机/接收机除了正常的信息信号之外还发送与接收机接收频率唯一相关联的信标信号。在选择用于端口分配的上行链路和下行链路频率时，每个端口监视信标频率并选择上行链路和下行链路频率，相关信标的频率低于预定阈值。类似地，在通过所选择的端口访问无线通信系统之前，便携式监视与所选端口的上行链路频率相关联的信标。如果与上行链路频率相关联的信标超过阈值，则便携式选择用于接入网络的备用端口。此外，在呼叫期间，如果与便携式上行链路频率对应的被监视信标上升到阈值以上，则进行到另一端口的紧急链路传送。

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