发明授权
- 专利标题： Modulation division multiple access
- 专利标题（中）： 调制分多址
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申请号： US13349169申请日： 2012-01-12
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公开(公告)号： US08325857B2公开(公告)日： 2012-12-04
- 发明人: Ming Jia , Jianglei Ma , Peiying Zhu , Wen Tong , Curt Dodd
- 申请人： Ming Jia , Jianglei Ma , Peiying Zhu , Wen Tong , Curt Dodd
- 申请人地址： US CA Cupertino
- 专利权人： Apple Inc.
- 当前专利权人： Apple Inc.
- 当前专利权人地址： US CA Cupertino
- 代理机构： Meyertons, Hood, Kivlin, Kowert & Goetzel, P.C.
- 主分类号： H03D1/00
- IPC分类号： H03D1/00
摘要：
The present invention employs hierarchical modulation to simultaneously transmit information on different modulation layers using a carrier RF signal. Initially, first data to be transmitted is assigned to a first modulation layer and second data is assigned to a second modulation layer. In one embodiment of the present invention, the first and second data are assigned based on reliability criteria. The first and second modulation layers are hierarchical modulation layers of the carrier RF signal. Once assigned, the first data is transmitted using the first modulation layer of the carrier RF signal and the second data is transmitted using the second modulation layer of the carrier RF signal. In one embodiment of the present invention, information may be transmitted to one end user using one modulation layer, and information may be transmitted to a different end user using a different modulation layer.
公开/授权文献
- US20120106410A1 MODULATION DIVISION MULTIPLE ACCESS 公开/授权日：2012-05-03
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