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公开(公告)号：US5818903A
公开(公告)日：1998-10-06
申请号：US717805
申请日：1996-09-24
申请人： Ki-Chul Han , Duck-Bin Im , In-Myoung Jeong , Sang-Cheon Lee , Ki-Hong Kim , Min-Sik Seo , Hyun Lee
发明人： Ki-Chul Han , Duck-Bin Im , In-Myoung Jeong , Sang-Cheon Lee , Ki-Hong Kim , Min-Sik Seo , Hyun Lee
摘要： An improved CDMA mobile automatic call simulating method and a simulator therefor which are capable of computing an accurate statistic data by repeating an actual CDMA call attempt and call incoming and by judging the result of the call attempt, which includes a management unit for communicating with the mobile stations and controlling the same in accordance with a previously set protocol, and a connection unit for communicating with the management unit and the mobile stations in accordance with an SDLC in an RS-422 signal method.
摘要翻译： 一种改进的CDMA移动自动呼叫模拟方法及其模拟器，其能够通过重复实际的CDMA呼叫尝试并呼入呼叫并通过判断呼叫尝试的结果来计算准确的统计数据，该结果包括用于与 移动站，并根据预先设定的协议对其进行控制;以及连接单元，用于根据RS-422信号方法的SDLC与管理单元和移动站进行通信。
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公开(公告)号：US5627834A
公开(公告)日：1997-05-06
申请号：US358531
申请日：1994-12-19
申请人： Ki-Chul Han , Duck-Bin Im , In-Myoung Jeong , Sang-Cheon Lee
发明人： Ki-Chul Han , Duck-Bin Im , In-Myoung Jeong , Sang-Cheon Lee
摘要： An automatic call simulator for simulating call processing capacity and performance between a base station and a mobile station of a CDMA mobile communication system is disclosed. A mobile station has a communication port for serial communication with an external unit. An operating unit controls all the mobile station by operating software, generates the state of each mobile station during simulation and a simulation result, and records simulation result data. An interface unit for interfacing the mobile station with the operation unit is included within a metal box so as not to be influenced by an external electromagnetic wave and has external terminals connected to the mobile station and to the operation unit. The interface unit and the mobile station are connected through the communication port.
摘要翻译： 公开了一种用于模拟CDMA移动通信系统的基站和移动站之间的呼叫处理能力和性能的自动呼叫模拟器。 移动站具有用于与外部单元进行串行通信的通信端口。 操作单元通过操作软件对所有的移动台进行控制，在仿真期间生成每个移动站的状态和仿真结果，并记录仿真结果数据。 用于将移动台与操作单元对接的接口单元包括在金属盒内，不受外部电磁波的影响，并且具有连接到移动台和操作单元的外部端子。 接口单元和移动台通过通信端口连接。
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3.发明授权
公开(公告)号：US5991636A
公开(公告)日：1999-11-23
申请号：US915945
申请日：1997-08-21
申请人： Seok-Ho Won , In-Myoung Jeong , Whan-Woo Kim , Duck-Bin Im
发明人： Seok-Ho Won , In-Myoung Jeong , Whan-Woo Kim , Duck-Bin Im
CPC分类号： H04W52/221 , H04W52/225 , H04W52/362
摘要： An adaptive power control method for a CDMA mobile radio telephone system is disclosed which operates similarly to a fixed increment and decrement power control method in the portion where the slope of the channel signal due to a fading effect is steep when the transmission power of a mobile station is adjusted. In the portion where the slope of the channel signal is gentle, like the peak portion of the channel signal, the granular noise can be improved by using the Jayant's equations. In accordance with the present invention, the fading effect in the mobile radio channel can be efficiently compensated without giving much load to a forward link since a mobile station determines the variation of the backward channel signal by using the statistical characteristics of a power control command (1 bit) transmitted from a base station. Further, an amount of interferences among a plurality of users can be reduced because the variation (variance) of a receiving power at the base station caused by the fading effect in each mobile station is made small. Thus, the overall performance of the system can be significantly improved in accordance with the present invention.
摘要翻译： 公开了一种用于CDMA移动无线电话系统的自适应功率控制方法，其操作类似于在移动台的发射功率下由于衰落效应而导致的信道信号的斜率陡峭的部分中的固定增量和减小功率控制方法 车站调整。 在通道信号的斜率平缓的部分，如通道信号的峰值部分，可以通过使用Jayant方程来提高粒状噪声。 根据本发明，由于移动台通过使用功率控制指令的统计特性来确定反向信道信号的变化，可以有效地补偿移动无线电信道中的衰落效应，而不会给前向链路带来很大的负担 1位）从基站发送。 此外，由于每个移动台中由衰落效应引起的基站处的接收功率的变化（方差）变小（多少），所以可以减少多个用户之间的干扰量。 因此，根据本发明，可以显着改善系统的整体性能。
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