发明名称 |
METHOD AND A NODE FOR DETECTING PHASE NOISE IN MIMO COMMUNICATION SYSTEMS |
摘要 |
A method for phase noise detection in a MIMO communication system comprises the step of computing an initial estimate of phase using received pilot symbols. A phase follows for interpolating between successive pilot symbol phase estimates to obtain a coarse resolution reference phase estimate. Then, it follows a phase for computing a fine resolution estimate of phase using said coarse resolution phase estimate together with data expressing characteristics of known phase noise processes, applying an expectation maximization (EM) algorithm. The application of the EM algorithm can be further refined using improved symbol decisions from a FEC decoding. |
申请公布号 |
US2015215071(A1) |
申请公布日期 |
2015.07.30 |
申请号 |
US201214420352 |
申请日期 |
2012.08.09 |
申请人 |
Chinnici Stefano;Rydstrom Mats;Tarable Alberto;Montorsi Guido |
发明人 |
Chinnici Stefano;Rydstrom Mats;Tarable Alberto;Montorsi Guido |
分类号 |
H04L1/00;H04L7/00;H04L7/033;H04B7/04 |
主分类号 |
H04L1/00 |
代理机构 |
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代理人 |
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主权项 |
1. A method for phase noise detection in a MIMO communication system, the method comprising:
computing an initial estimate of phase using received pilot symbols; interpolating between successive pilot symbol phase estimates to obtain a coarse resolution reference phase estimate; and computing a fine resolution estimate of phase using said coarse resolution phase estimate together with data expressing characteristics of known phase noise processes, applying an expectation maximization (EM) algorithm. |
地址 |
Milano IT |