发明名称 |
APPARATUS AND METHOD FOR CANCELING GROUP-WISE PARALLEL INTERFERENCE OF CDMA SYSTEM WITH MULTIPLE TRANSMISSION SPEED |
摘要 |
PURPOSE: An apparatus and a method for canceling a group-wise parallel interference of a CDMA system with a multiple transmission speed are provided to cancel a group-wise parallel interference by determining ranks of signals using output values of a maximal ratio combiner received to each finger and power measured values of the fingers, and by grouping the fingers according to the ranks. CONSTITUTION: A received intermediate frequency signal(100) is generated through a receiver antenna, a carrier frequency demodulator and an analog to digital converter. The received signal(100) is converted into a baseband signal(107). After that, the baseband signal(107) is stored in a buffer(102). The signal(107) is inputted to an adder(106). A DCB(Despreading and Channel estimation Block) is composed of a timing circuit(108), a PN code generator(109), a demodulator(111) and a channel and power estimator(112). The synchronization acquisition circuit(108) performs a processing of PN code acquisition and tracking using the signal(107). The PN code generator(109) generates a PN code(110) using synchronization acquisition information outputted from the circuit(108).
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申请公布号 |
KR20020039782(A) |
申请公布日期 |
2002.05.30 |
申请号 |
KR20000069593 |
申请日期 |
2000.11.22 |
申请人 |
KOREA ELECTRONICS & TELECOMMUNICATIONS RESEARCH INSTITUTE |
发明人 |
CHOI, IN GYEONG;KIM, SEONG RAK;KIM, YEONG HWA |
分类号 |
H04B1/69;H04B1/707;H04B15/00;(IPC1-7):H04B1/69 |
主分类号 |
H04B1/69 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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