专利名称：Multi-scale CDMA
发明人：Urbain Alfred von der Embse申请号：US10266257申请日：20021008公开号：US07394792B1公开日：20080701
专利附图：
摘要：Method for reducing the chip rate of Code Division Multiple Access (CDMA)codes uniformly spread over a frequency bandwidth by converting these codes to 2-scalecodes which perform uniform spreading within the subbands of a filter bank over thebandwidth, and over the subbands, and with controllable subband power levels. This is a
2-scale code example of Multi-Scale Code Division Multiple Access (MS-CDMA) andassigns algebraic fields of indices for the first scale “0” which spread within eachsubband and algebraic fields of indices for the second scale “1” which spread over thesubbands. These algebraic fields are scaled and combined to form the algebraic fields ofcode and chip indices for the 2-scale code. These 2-scale codes perform a Waveletdilation type of operation to stretch the CDMA chips while maintaining the spreadingover the full frequency band.
申请人：Urbain Alfred von der Embse
地址：Westchester CA US
国籍：US
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