发明名称 Slot timing detection method and circuit
摘要 In a slot timing detection method, only data of power values, of power values at points as the ordinal numbers of data, which fall within upper N power values in a decreasing order of power values are stored, and the Nth data is as a threshold. The thresholds in the slot intervals are accumulated to obtain a base value. Only predetermined M data of the data of the power values are stored in correspondence with point information. When data corresponding to the points corresponding to the N data fall within the M data, currently obtained data is added to the data at each point to generate new data. When data corresponding to the points corresponding to the N data fall outside the M data, currently obtained data is added to the base value to generate new data. New data is generated by adding the threshold to data, of the M data, which corresponds to a point where no data falls within the N data. When the number of generated data is M or more, only upper M data are stored together with point information. When slot averaging is performed a predetermined number of times, the M data is divided by the predetermined number and the quotient is as an average value. A slot timing detection circuit, a mobile station, and a mobile communication system are also disclosed. <IMAGE>
申请公布号 EP0942543(A2) 申请公布日期 1999.09.15
申请号 EP19990104982 申请日期 1999.03.12
申请人 NEC CORPORATION 发明人 YONEYAMA, KOH
分类号 H04B1/707;H04B1/7075;H04B1/7093;H04B7/26;H04L7/00;H04W56/00;H04W84/12 主分类号 H04B1/707
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