Method and device for estimating carrier to interference plus noise ratio in orthogonal frequency division multiplexing system
A technology of carrier interference and interference noise, which is applied in the field of communication, can solve the problem of large estimation error of carrier interference and noise
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[0060] In order to solve the problem of large estimation error of the carrier-to-interference-to-noise ratio in the prior art, the present invention provides a method and device for estimating the carrier-to-interference-to-noise ratio in an OFDM system. The following describes the present invention in conjunction with the drawings and embodiments For further details. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0061] Embodiment 1 of the present invention relates to a method for estimating carrier-to-interference-noise ratio in an OFDM system. In this embodiment, figure 1 The LTE downlink subframe structure shown is taken as an example for illustration. The basic transmission unit of LTE is 1 subframe with a time interval of 1 millisecond; figure 1 Among them, D represents the data subcarrier, and P i,j (i=1, 2, 3, 4, j=1, 2, . . . , K, K being the number of pilot s...
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