An adaptive frequency domain interpolation method and system
A frequency-domain interpolation and self-adaptive technology, applied in baseband system components and other directions, can solve the problems of high QPSK operating point, unable to obtain optimal throughput, unable to obtain optimal performance, etc., to achieve low implementation complexity and optimal performance. The effect of throughput performance
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Embodiment 1
[0061] An adaptive frequency domain interpolation method provided by Embodiment 1 of the present invention, such as Figure 6 As shown, the method mainly includes:
[0062] Step 101, determine a first threshold for FI mode selection.
[0063] Wherein, the determining the first threshold value for selecting the FI mode includes:
[0064] Traverse the performance simulation data of different FI modes, and select the first threshold value R as an intermediate SNR value of the transition zone in the performance simulation data.
[0065] Step 102, measure and obtain the signal-to-noise ratio (SNR) value of the current channel, compare the SNR value with the corresponding first threshold value, and select the corresponding FI mode according to the comparison result.
[0066] Wherein, the measurement obtains the SNR value of the current channel, including:
[0067] Measure the reference signal received power RSRP and noise power N of the current channel 0 ;
[0068] Calculate th...
Embodiment 2
[0082] Corresponding to the adaptive frequency domain interpolation method described in Embodiment 1 of the present invention, Embodiment 2 of the present invention provides an adaptive frequency domain interpolation device, such as Figure 7 As shown, the device includes:
[0083] A parameter determination unit 10, configured to determine a first threshold for FI mode selection;
[0084] The FI selection unit 20 is configured to measure and obtain the SNR value of the current channel, compare the SNR value with the corresponding first threshold value, and select the corresponding FI mode according to the comparison result.
[0085] Wherein, the parameter determination unit 10 is further configured to traverse performance simulation data of different FI modes, and select the first threshold value R as an intermediate SNR value of a transition zone in the performance simulation data.
[0086] The FI selection unit 20 is further used to measure the reference signal received pow...
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