US 12,057,972 B2 · Channel estimation method and apparatus

Abstract

This disclosure provides channel estimation methods and apparatuses. One method includes: determining Ps initial sample channel matrices that indicate channel states, where the Ps initial sample channel matrices include P1 first sample channel matrices and Ps-P1 second sample channel matrices, the P1 first sample channel matrices are determined based on a previous sample channel matrix or a given reference signal, and Ps is an integer greater than 1; and determining a channel matrix based on the Ps initial sample channel matrices, and obtaining a channel estimation result. Because the P1 initial sample channel matrices in the Ps initial sample channel matrices are determined based on the previous sample channel matrix or the given reference signal, an initial channel estimation result may be provided as an iterative initial sample channel matrix.

Claims15

Dependent claims

A channel estimation method, comprising:

determining one or more initial sample channel matrices based on a previous sample channel matrix or a reference signal;
performing one or more rounds of iteration processing based on a channel estimation algorithm, wherein an input of the channel estimation algorithm comprises the one or more initial sample channel matrices and an output of the channel estimation algorithm is an estimated channel matrix;
and
determining that the estimated channel matrix as a channel estimation result in response to determining that a current iteration processing of the one or more rounds of iteration processing is a last iteration processing.

1 more element

A channel estimation apparatus, comprising:

at least one processor;
and
one or more memories coupled to the at least one processor and storing programming instructions for execution by the at least one processor to perform operations comprising:
determining one or more initial sample channel matrices based on a previous sample channel matrix or a reference signal;
performing one or more rounds of iteration processing based on a channel estimation algorithm, wherein an input of the channel estimation algorithm comprises the one or more initial sample channel matrices and an output of the channel estimation algorithm is an estimated channel matrix;
and
determining that the estimated channel matrix as a channel estimation result in response to determining that a current iteration processing of the one or more rounds of iteration processing is a last iteration processing.

4 more elements

A channel estimation apparatus, comprising:

at least one processor;
and
one or more memories coupled to the at least one processor and storing programming instructions for execution by the at least one processor to perform operations comprising:
performing iteration processing for N times based on a channel estimation algorithm, wherein an input of the channel estimation algorithm is at least one sample channel matrix, wherein N is a positive integer, and wherein each of the N times of iteration processing comprises:
determining data signal detection results of a data signal based on at least one sample channel matrix;
grouping the data signal detection results to obtain a plurality of groups of signal detection results;
performing channel estimation based on at least one group of signal detection results in the plurality of groups of signal detection results to obtain at least one estimated channel matrix;
determining whether a current iteration processing is an Nth time of the N times of iteration processing;
in response to determining that the current iteration processing is not the Nth time of the N times of iteration processing, using the obtained at least one estimated channel matrix as the at least one sample channel matrix for a next iteration processing;
and
in response to determining that the current iteration processing is the Nth time of the N times of iteration processing, determining the at least one estimated channel matrix as a channel estimation result.

8 more elements

Dependencies are inferred from the claim text.

Channel estimation method and apparatus

Life of this patent

Channel estimation method and apparatus

Life of this patent

Abstract

Claims15