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2. 发明公开

EP1339172A4 RAKE RECEIVER APPARATUS AND RECEIVING METHOD 有权
标题翻译： RAKE接收机设备和接收方法
公开(公告)号：EP1339172A4
公开(公告)日：2007-05-16
申请号：EP01981055
申请日：2001-11-09
申请人： NEC CORP
发明人： HAYATA TOSHIHIRO
IPC分类号： H04B1/7117 , H04B1/707 , H04B1/709 , H04B7/02 , H04J13/04
CPC分类号： H04B1/7117 , H04B1/7113
摘要： An object of the present invention is to provide a rake receiver and a receiving method for efficiently assigning paths to fingers in a CDMA mobile communication system. In the present invention, a correlation-value calculation section 2 calculates correlation values between spreading codes and reception signals input from an input terminal 1, at all timings at which rake reception is possible, and outputs the calculated correlation values to a delayed-profile creation section 3 and a difference-history creation section 6. The delayed-profile creation section 3 determines average correlation values and issues the values as a delayed profile to a path selection section 4. For each reception timing, the difference-history creation section 6 compares the latest correlation value issued from the correlation-value calculation section 2 with a previous correlation value held by the difference-history creation section 6, to determine a difference history, and issues the difference history to the path selection section 4. The path selection section 4 rearranges the delayed profile in decreasing order the average correlation values. When the delayed profile and the difference history satisfy all predetermined conditions, the path selection section 4 assigns the corresponding reception timing to a finger and issues the reception timing to the finger section 5.

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