Information feedback method and device, information receiving method and device, and storage medium

An information receiving method, comprising:

• sending configuration information to a second communication node;
• and
• receiving precoding matrix information fed back from the second communication node, wherein a target frequency band of the precoding matrix information comprises a precoding matrix information subband, and the precoding matrix information subband is determined according to the configuration information;
• wherein the configuration information comprises:
• a target frequency band of channel state information, wherein the target frequency band of the channel state information is indicated in a manner of a channel state information subband, and the precoding matrix information subband is within the channel state information subband;
• and
• wherein the precoding matrix information subband is determined according to the configuration information comprises:
• determining a width of the precoding matrix information subband according to a width of the channel state information subband.

A communication node, comprising:

• one or more processors;
• and
• a memory, which is configured to store one or more programs;
• wherein the one or more programs are executed by the one or more processors to cause the one or more processors to:
• receive configuration information from a first communication node;
• determine precoding matrix information according to the configuration information, wherein a target frequency band of the precoding matrix information comprises a precoding matrix information subband, and the precoding matrix information subband is determined according to the configuration information;
• and
• feed back the precoding matrix information to the first communication node;
• wherein the configuration information comprises:
• a target frequency band of channel state information, wherein the target frequency band of the channel state information is indicated in a manner of a channel state information subband, and the precoding matrix information subband is within the channel state information subband;
• and
• wherein the one or more processors are configured to determine a width of the precoding matrix information subband according to a width of the channel state information subband.