US 10,541,838 B2 · Method and apparatus for channel estimation in wireless communication system

Abstract

The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A method and an apparatus for channel estimation in a wireless communication system are provided. According to various embodiments of the present disclosure, an method of a receiving apparatus in a wireless communication system includes: estimating channel tap values by using a first reference signal; and estimating an effective channel regarding a second reference signal, based on channel tap indexes corresponding to values greater than or equal to a threshold from among the channel tap values. According to various embodiments of the present disclosure, the receiving apparatus can more exactly estimate an effective channel, and can achieve a lower BLER even in a high SNR region.

Claims18

Dependent claims

A method for operating a reception device in a wireless communication system, the method comprising:

determining a channel impulse response (CIR) for channel tap indexes based on a cell-specific reference signal (CRS) or a sounding reference signal (SRS);
identifying significant channel tap indexes of channel tap values among the channel tap indexes, wherein the channel tap values are greater than a threshold among a plurality of channel tap values of the CIR;
determining an effective CIR for the significant channel tap indexes based on a demodulation reference signal (DMRS);
and
obtaining an effective channel frequency response (CFR) by applying a Fourier transform to the effective CIR.

2 more elements

Dependencies are inferred from the claim text.

Method and apparatus for channel estimation in wireless communication system

Life of this patent

Method and apparatus for channel estimation in wireless communication system

Life of this patent

Abstract

Claims18