发明授权
US07095290B2 Method and system for generating higher order modulations with QPSK modulator
有权
用QPSK调制器产生高阶调制的方法和系统
- 专利标题: Method and system for generating higher order modulations with QPSK modulator
- 专利标题(中): 用QPSK调制器产生高阶调制的方法和系统
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申请号: US10499106申请日: 2001-12-18
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公开(公告)号: US07095290B2公开(公告)日: 2006-08-22
- 发明人: Hannu Häkkinen , Pekka Kyösti
- 申请人: Hannu Häkkinen , Pekka Kyösti
- 申请人地址: FI Espoo
- 专利权人: Nokia Corporation
- 当前专利权人: Nokia Corporation
- 当前专利权人地址: FI Espoo
- 代理机构: Squire, Sanders & Dempsey LLP
- 国际申请: PCT/EP01/14960 WO 20011218
- 国际公布: WO03/053021 WO 20030626
- 主分类号: H04L27/22
- IPC分类号: H04L27/22 ; H04L9/00
摘要:
Method and system for generating higher order modulations with QPSK modulators. A complex sequence of binary digits is input to QPSK modulators. The binary digits are mapped to constellation points and multiplied with weighting coefficient. Constellation points of higher order modulation are mapped to inputs of the QPSK modulator, and, after modulation QPSK symbols are summed to compose symbols of higher order modulation.
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