发明授权
- 专利标题： Flexible correlation and queueing in CDMA communication systems
- 专利标题（中）： CDMA通信系统中的灵活相关和排队
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申请号： US10133149申请日： 2002-04-26
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公开(公告)号： US06788731B2公开(公告)日： 2004-09-07
- 发明人: Yun Kim , David P. Gurney , Anthony R. Schooler , Zhuan Ye
- 申请人： Yun Kim , David P. Gurney , Anthony R. Schooler , Zhuan Ye
- 主分类号： H04L2730
- IPC分类号： H04L2730
摘要：
A programmable correlator for a communication system includes an input queue coupled with an analog-to-digital converter (ADC). The input queue includes a random access memory (RAM) wherein sampled data streams from the ADC are written into the RAM. The input queue has two banks of memory of width 2M. A flexible complex correlator is operable on M samples. The correlator is coupled to read M complex samples out of 2M samples from the input queue. A pseudo-noise (PN) crossbar unit operates to rotate a generated PN code to match a rotation of the input queue data in the complex correlator.