Method of obtaining channel response of self-interference channel, and full duplexing communication machine

Abstract

The invention is suitable for the communication technology field, and provides a method of obtaining channel responses of self-interference channels, and a full duplexing communication machine. The method comprises the steps of adopting multiple reference signals to conduct channel estimation for self-interference channels and obtaining channel response estimation values of the self-interference channels, wherein the time interval of each two adjacent reference signals is shorter than the coherent time of the self-interference channels and the frequency domain interval of each two adjacent reference signals is shorter than the coherent bandwidth of the self-interference channels; determining stable intervals of channel frequency domain responses based on the channel response estimation values; randomly selecting frequency points within the stable interval of each channel frequency domain response or selecting frequency points with higher channel responses to make the frequency points serve as emission frequency points of the reference signals; and obtaining a relation between emission frequency points and non-emission frequency points of the channel responses and then obtaining channel responses of all time domains and frequency domain directions based on reception signals, corresponding to the reference signals, on the emission frequency points. According to the invention, reference signal resources used for self-interference channel estimation are saved.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a method for obtaining a channel response of a self-interference channel and a full-duplex signal machine. Background technique [0002] In an operator's mobile network, a base station (Base Station, BS) communicates with multiple user terminals (User Equipment, UE) within a coverage area. The communication between the base station and the user terminal is bidirectional. The process of the base station sending a signal to the user terminal is called downlink communication, and the process of the user terminal sending a signal to the base station is called uplink communication. [0003] The duplex method refers to the multiplexing method between the uplink and the downlink. The current duplex mode is divided into simplex, half-duplex and full-duplex. Simplex means that communication is one-way, the transmitter can only be used to transmit signals, the receiver ...

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Problems solved by technology

[0016] The embodiment of the present invention provides a method for obtaining the channel response of the self-interference channel and a full-duplex signal machine, aiming at solving the problem that the existing technology does not use the characteristic that the frequency domain change relationship of the self-interference channel changes slowly with time to perform self-interference channels. The problem of channel estimation increases the time-frequency resources of data transmission

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