发明名称 |
Display of code power levels and relationships of multiple spreading factor orthogonal codes in a CDMA signal |
摘要 |
A display of code power levels and relationships of multiple spreading factor orthogonal codes in a code division multiple access (CDMA) signal has a first code graph of code domain power (CDP) for all the codes at the largest code spreading factor that includes all codes at all spreading factors plotted in a linear code indexing order and a second graph of CDP where the codes are plotted in bit-reversed order to group together the sub-codes of each code of lower spreading factor. Markers on each graph are tied together such that movement of one marker on one graph to a particular code value causes the other marker on the other graph to move to the corresponding code value. The sub-codes related to a particular code bar in the graphs indicated by the markers may be differentiated by using grey scale or color variations. A base code power level indicator, which may be in the form of a horizontal bar on the bit-reversed order graph spanning the group of sub-codes corresponding to a particular spreading factor, provides a power indication for the base code.
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申请公布号 |
US6850238(B2) |
申请公布日期 |
2005.02.01 |
申请号 |
US20010919690 |
申请日期 |
2001.07.31 |
申请人 |
TEKTRONIX, INC. |
发明人 |
BRYANT CRAIG D.;KUNTZ THOMAS L.;ENGHOLM KATHRYN A. |
分类号 |
H04J13/04;H04B1/707;H04B17/00;H04J11/00;(IPC1-7):G09G5/22 |
主分类号 |
H04J13/04 |
代理机构 |
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主权项 |
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地址 |
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