Up pilot method for restraining interference
A technology for suppressing interference and pilot sequences, applied in multi-frequency code systems, baseband system components, etc., can solve problems such as inter-cell interference, low user throughput, and low channel estimation accuracy of cell edge users, and improve throughput , Improve channel estimation accuracy, and suppress mutual interference
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[0044] The basic principle of the present invention is as Figure 7 shown, including the following steps:
[0045] In step s101, a specific scrambling code group is assigned to each cell as a pilot, and the scrambling code group is actually a series of combinations including code sequences of different lengths. Because in the uplink single-carrier system, the same bandwidth can be multiplexed to different numbers of users, and the pilot lengths required by the corresponding users are also different, so the scrambling code group includes code sequences of various lengths corresponding to the pilots.
[0046] Step s102, each user dynamically selects a code sequence in the scrambling code group of the cell where it is located as the basic pilot according to the number of multiplexed users. A code sequence; the number of users in a cell changes at any time, so it is necessary to select a code sequence from the scrambling code group according to the number of users who multiplex t...
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