发明名称 Enhanced code allocation method for CDMA systems
摘要 A method is taught for assigning spreading codes to mobile stations located within a cell, as is a CDMA communications system that operates in accordance with the method. The method includes steps of (A) assigning a set of spreading codes for use in a particular cell; (B) determining values of entries in a spreading code performance table (fixed or dynamic) based on a weighted combination of cross-correlation factors between individual ones of the spreading codes of the set of spreading codes, and also based on an auto-correlation factor of individual ones of the spreading codes of the set of spreading codes, within a delay spread range that is typical for the particular cell; and (C) assigning a spreading code from the performance table by selecting a spreading code that will cause a least amount of interference with a sub-set of already assigned spreading codes.
申请公布号 US6577671(B1) 申请公布日期 2003.06.10
申请号 US19990474312 申请日期 1999.12.29
申请人 NOKIA MOBILE PHONES LIMITED 发明人 VIMPARI MARKKU
分类号 H04B1/707;H04J11/00;(IPC1-7):H04B15/00;H04K1/00;H04L27/30 主分类号 H04B1/707
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