Physical layer transmission method and device suitable for simple satellite Internet of Things terminal
A technology of Internet of Things terminals and transmission methods, which is applied in the field of physical layer transmission methods, and can solve problems such as limiting system capacity, wasting bandwidth, and large protection time intervals
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Embodiment 1
[0053] Based on the aforementioned descriptions about frequency synchronization and time synchronization of TDMA, the flow of the physical layer transmission method suitable for simple satellite Internet of Things terminals provided by this example is as follows: Figure 5 shown.
[0054] S100: Perform a predetermined number of corrections when the satellite Internet of Things terminal is connected to the network, so that the satellite Internet of Things terminal reaches a synchronization state; the predetermined number of times does not exceed 10 times, and the correction includes frequency deviation synchronization and / or time deviation synchronization .
[0055] S200: After the satellite Internet of Things terminal reaches the synchronization state, no more calibration or calibration is performed at a frequency not exceeding 1 day / time.
[0056] The frequency offset synchronization and the time offset synchronization have been described in the foregoing of the specific imp...
Embodiment 2
[0063] In this embodiment, a satellite emergency communication and ubiquitous satellite Internet of Things spectrum sharing device, such as Image 6 As shown, it includes a network access correction module and a correction control module.
[0064] The network access correction module performs a predetermined number of corrections when the satellite Internet of Things terminal is connected to the network, so that the satellite Internet of Things terminal reaches a synchronized state; the predetermined number of times does not exceed 10, and the correction includes frequency deviation synchronization and / or time deviation synchronization.
[0065] The correction control module does not perform correction after the satellite Internet of Things terminal reaches the synchronization state, or performs correction at a frequency not exceeding 1 day / time after the satellite Internet of Things terminal reaches the synchronization state.
Embodiment 3
[0067] This example provides an electronic device, including: at least one processor and a memory; wherein, the memory stores computer-executable instructions; at least one processor executes the computer-executable instructions stored in the memory, so that at least one processor executes the applicable method of Embodiment 1 A physical layer transmission method for a simple satellite Internet of Things terminal.
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