发明名称 |
METHOD AND APPARATUS FOR IMPLEMENTING PN MASKS FOR A TRUNCATED M-SEQUENCE |
摘要 |
Method and apparatus to provide a pseudo random noise (PN) sequence having a particular code phase offset for use in a radio in a Code Division Multiple Access (CDMA) radio system (100). In one embodiment, a first mask (320) is applied to shift a reference PN sequence to the assigned PN code phase (416). Upon reaching the end of the reference PN sequence, the initial state is reloaded (420) into the PN generator state register to reset the state value to its initial value, thereby producing a cyclical sequence. In a second embodiment, a first mask (622) and a second mask (624) are applied to the reference sequence produced by the PN generator state registers (620) to produce the appropriate portions of the output sequence.
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申请公布号 |
WO0143315(A1) |
申请公布日期 |
2001.06.14 |
申请号 |
WO2000US30337 |
申请日期 |
2000.11.02 |
申请人 |
MOTOROLA INC. |
发明人 |
CHEN, JIANGNAN;LUZ, YUDA, Y.;ROTSTEIN, RON |
分类号 |
H04B1/707;H04B7/26;H04J13/00;(IPC1-7):H04B7/216 |
主分类号 |
H04B1/707 |
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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