发明授权
- 专利标题： Effective signal interference plus noise ratio estimation for multi-order modulation
- 专利标题（中）： 用于多阶调制的有效信号干扰加噪声比估计
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申请号： US12409128申请日： 2009-03-23
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公开(公告)号： US08416881B1公开(公告)日： 2013-04-09
- 发明人: Ming Jia , Jianglei Ma , Peiying Zhu , Wen Tong
- 申请人： Ming Jia , Jianglei Ma , Peiying Zhu , Wen Tong
- 申请人地址： US CA Cupertion
- 专利权人： Apple Inc.
- 当前专利权人： Apple Inc.
- 当前专利权人地址： US CA Cupertion
- 代理机构： Meyertons, Hood, Kivlin, Kowert & Goetzel,, P.C.
- 代理商 Stephen J. Curran
- 主分类号： H04K1/02
- IPC分类号： H04K1/02 ; H04K1/10 ; H04L27/00 ; H04L27/28 ; H04B15/00
摘要：
A method for determining an effective signal-to-interference-plus-noise ratio (ESINR) associated with transmission of modulation symbols at a plurality of different modulation orders. A signal-to-interference-plus-noise ratio bit factor (SBF) is determined for each of Q number of bits per symbol associated with a first modulation order based on a signal-to-interference-plus-noise ratio (SNR) associated with a base symbol associated with a base modulation order. A SBF is determined for each of P number of bits per symbol associated with a second modulation order based on the SNR associated with the base symbol. The first modulation order is different from the second modulation order. An ESINR of a first modulation symbol associated with the first modulation order and a second modulation symbol associated with the second modulation order is determined.
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