US 2022/0022196 A1 · CSI MEASUREMENT METHOD AND APPARATUS

Abstract

This application provides a CSI measurement method and apparatus. In the method, a terminal may send, to a network device, a first RS that occupies a plurality of frequency domain resource segments in one time domain unit, where the plurality of frequency domain resource segments are discontinuously distributed on a frequency band of the terminal, and the network device receives the first RS on a corresponding frequency domain resource segment, and measures CSI based on the first RS. Currently, to avoid channel aging, a method is to shorten an SRS periodicity. Because frequency domain resources occupied by the SRS are continuously distributed on an entire frequency band, this method leads to a waste of time-frequency resources. However, the first RS in this application is discontinuously distributed on a frequency band of the terminal, and a relatively small quantity of time-frequency resources are occupied.

Claims20

Dependent claims

A channel state information (CSI) measurement apparatus, comprising a processor and a memory connected to the processor, wherein

the memory is configured to store computer-executable instructions, and the processor executes the computer-executable instructions stored in the memory, to enable the apparatus to implement:
receiving a first reference signal (RS) sent by a terminal, wherein the first RS is used to measure CSI;
the first RS occupies n frequency domain resource segments in one time domain unit, and the n frequency domain resource segments are discontinuously distributed on a frequency band of the terminal;
and the time domain unit is a set of a plurality of consecutive orthogonal frequency division multiplexing OFDM symbols, and n is an integer greater than 1;
and
measuring the CSI based on the first RS.

3 more elements

A channel state information (CSI) measurement apparatus, comprising a processor and a memory connected to the processor, wherein

the memory is configured to store computer-executable instructions, and the processor executes the computer-executable instructions stored in the memory, to enable the apparatus to implement:
determining a first reference signal (RS), wherein the first RS is used to measure CSI;
and
sending the first RS to a network device, wherein the first RS occupies n frequency domain resource segments in one time domain unit, and the n frequency domain resource segments are discontinuously distributed on a frequency band of a terminal;
and the time domain unit is a set of a plurality of consecutive orthogonal frequency division multiplexing OFDM symbols, and n is an integer greater than 1.

2 more elements

Dependencies are inferred from the claim text.

Csi measurement method and apparatus

Life of this patent

Csi measurement method and apparatus

Life of this patent

Abstract

Claims20