Invention Grant
US08391132B2 Slow speed mute resistance via selective COFDM bin loading 失效
通过选择性COFDM箱装载,缓慢的静音电阻

Slow speed mute resistance via selective COFDM bin loading
Abstract:
Systems and methods are presented for improving the ability to withstand slow speed mute via diversity transmission while avoiding loss in link level margin. In exemplary embodiments of the present invention, systems and methods are presented for improving resistance to slow speed muting by employing transmit diversity where a second signal is not a replica of the original signal. The second signal can be generated, for example, by using only a COFDM FFT bin that contained the cluster sync bit while setting all other bins to zero. That is, only the spectral portion of interest of the COFDM signal need be utilized. In such exemplary embodiments, the same frequency and time delay offset can be used as in current systems and methods, except that the replica COFDM signal can, for example, consist of only one populated FFT bin.
Public/Granted literature
Information query
Patent Agency Ranking
0/0