System Overview
The frame structure of transceiver/receiver is based on that of 5G.①Base Station
On the base station side, it receives transmission data from PC in each modulation format* via USB. After adding guard intervals(GI), D/A conversion and up-conversion, the data is forwarded toward the terminal.*QPSK, 16QAM, 64QAM
②Terminal
On the terminal side, it receives the data from the base station, and after down-conversion and A/D conversion, removal of GI, and various corrections, the data(bit-based) is output to PC via USB.Configuration
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Specifications(example)
| Multi-Carrier Modulation Scheme | OFDM |
| Communication | Single way（Base station ⇒ Terminal） |
| Modulation | QPSK,16QAM,64QAM |
| Frequency | 28GHz |
| Bandwidth | 100MHz(can support up to 300MHz) |
| Subcareer spacing | 75kHz |
| １ Frame interval | 10ms |
| １ Subframe interval | 0.2ms |
| Number of slots per subframe | ２ |
| １ Slot interval | 0.1ms |
| Number of symbols per slot | ７ |
| Guard interval ・1st symbol ・2nd～７th symbol |
1.04μs 0.94μs |
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Antenna ・Base station / Terminal |
16 patch array antenna/ 4 patch array antenna |