US 11,310,083 B2 · Method and system for selecting important delay taps of channel impulse response

Abstract

A method and a system for selecting important delay taps of channel impulse response are provided, which belong to the field of adaptive transmission technology of wireless communication. The method performs local predictability estimation on all delay taps in the channel impulse response in wireless communication, thereby selecting the important delay taps in the channel impulse response. The disclosure uses recurrence rates of the delay taps to estimate local predictability of the delay taps. Noise delay taps are distinguished from the important delay taps through the local predictability of the delay taps, which improves the identification rate of the important delay taps of the channel impulse response in wireless communication. The disclosure may implement the selection of the important delay taps of the channel impulse response, which provides guarantee for implementing adaptive transmission and adaptive coding of wireless communication.

Claims16

Dependent claims

A method for selecting important delay taps of channel impulse response, comprising:

obtaining an amplitude of each delay tap sampling point according to a channel impulse response;
obtaining an optimal delay and an optimal embedding dimension of the amplitude of each delay tap sampling point according to the amplitude of each delay tap sampling point;
obtaining a reconstructed phase space of each delay tap sampling point based on the optimal delay and the optimal embedding dimension of the amplitude of each delay tap sampling point;
obtaining a selection threshold of each delay tap sampling point according to the reconstructed phase space of each delay tap sampling point;
obtaining a threshold recurrence plot of each delay tap sampling point based on the selection threshold of each delay tap sampling point;
obtaining a recurrence rate of each delay tap sampling point based on the threshold recurrence plot of each delay tap sampling point;
and
selecting a plurality of delay taps with recurrence rate magnitudes at front as the important delay taps according to the recurrence rate of each delay tap sampling point.

5 more elements

A system for selecting important delay taps of channel impulse response, comprising:

an amplitude calculation module, configured to obtain an amplitude of each delay tap sampling point according to a channel impulse response;
a delay and embedding dimension calculation module, configured to obtain an optimal delay and an optimal embedding dimension of the amplitude of each delay tap sampling point according to the amplitude of each delay tap sampling point;
a reconstructed phase space construction module, configured to obtain a reconstructed phase space of each delay tap sampling point based on the optimal delay and the optimal embedding dimension of the amplitude of each delay tap sampling point;
a selection threshold calculation module, configured to obtain a selection threshold of each delay tap sampling point according to the reconstructed phase space of each delay tap sampling point;
a recurrence plot construction module, configured to obtain a threshold recurrence plot of each delay tap sampling point based on the selection threshold of each delay tap sampling point;
a recurrence rate calculation module, configured to obtain a recurrence rate of each delay tap sampling point based on the threshold recurrence plot of each delay tap sampling point;
and
a delay tap selection module, configured to select a plurality of delay taps with recurrence rate magnitudes at front as the important delay taps according to the recurrence rate of each delay tap sampling point.

5 more elements

Dependencies are inferred from the claim text.

Method and system for selecting important delay taps of channel impulse response

Life of this patent

Method and system for selecting important delay taps of channel impulse response

Life of this patent

Abstract

Claims16