System, transmitting device and receiving device for eliminating interference of adjacent base station, and method thereof

Abstract

The invention includes a system for eliminating interference of adjacent base station and method thereof. The method includes: performing packetization, interleaving and repetition to the initial datablock to generate a logic data block, performing permutation to the logic data block to generate a physical data block, and transmitting the physical data block; receiving the physical data block, performing inverse-permutation and de-interleaving to the physical data block to obtain the logic data block, performing separation and estimation to the physical channel of the target base station andadjacent base station through the leading symbol or the pilot frequency symbol, performing inverse- permutation and de-interleaving to the physical channel to obtain the channel, constructing the estimated logic channel matrix through the estimated logic channel, calculating the weight coefficient based on the estimated logic channel matrix, equalizing the logic data block by using the weight coefficient, to obtain the equalized logic data block, performing reduction to the equalized logic data block to obtain the initial data block. By adoption of the invention, the interference of adjacent base station in the communication system is eliminated, and reliability of the communication system is improved.

Description

technical field [0001] The present invention mainly relates to the field of wireless communication, in particular to a system for eliminating interference from adjacent base stations, a transmitting and receiving device and a method thereof. Background technique [0002] The Worldwide Interoperability for Microwave Access (WiMAX, Worldwide Interoperability for MicrowaveAccess) standard usually uses Code Repetition (Code Repetition) technology to improve SNR characteristics, and uses Maximum Ratio Combining (MRC, Maximum Ratio Combining) technology in the receiver to synthesize repeated Symbols to reduce packet error rate (PER, Packet Error Rate) and bit error rate (BER, Bit Error Rate). As we all know, the maximum ratio synthesis technique is the best synthesis technique for eliminating additive white Gaussian noise (AWGN, Additivewhite Gaussian noise). However, at the edge of the cell covered by the base station, the interference of adjacent base stations is very strong an...

AI Technical Summary

Problems solved by technology

In this case, since the three sectors share the same frequency band, it has a high utilization rate of frequency resources, but there are serious interference problems, especially the interference of adjacent base stations. Since the interference of adjacent base stations is narrow-band noise interference, therefore, Existing code repetition technology, maximum ratio synthesis technology and hybrid automatic repeat request (HARQ, Hybrid Automatic Repeat Request) technology can not solve the problem of adjacent base station interference well

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