| 摘要 |
<p>An wireless interface for use with a mobile satellite system that extends the baseline LTE interface modulation and coding from 3GPP. The LTE OFDM and S-FDMA technologies are used in the lowest FDD E-UTRA assigned bandwidth of 1.4MHz but can be extended up to 7 other bands. The key differentiator for S-LTE from LTE would be the use of 32-ary Amplitude Phase Shift Keying (32-APSK) in the uplink channel for S-FDMA with LDPC and turbo coding and 64-QAM in the downlink channel for OFDM with LDPC and turbo coding. This new mechanism for S-LTE with new combination of coding will allow a robust channel model for S-LTE wireless interface and will enable the S-LTE wirless interface to have an efficient link budget. The S-LTE wireless interface of the present invention can be implemented in 700MHz, 1.5GHz, 2.1GHz and 2.6GHz bands or any future bands allocated for the specific wireless interface.</p> |
