Communication method and apparatus for indicating beam quality

A communications apparatus, comprising:

• a receiver, configured to receive a reference signal sent by a network device;
• a processor, configured to measure the reference signal to obtain at least one piece of beam quality;
• and
• a transmitter, configured to report differential beam quality indication information to the network device, wherein the differential beam quality indication information indicates one or more of the following:
• that beam quality reporting is less than a minimum value of beam quality in a differential range and that beam quality corresponding to the differential beam quality indication information is a reporting threshold value,
• wherein the transmitter is configured to report the differential beam quality indication information to the network device responsive to determining that beam quality in the at least one piece of beam quality is greater than the reporting threshold value and less than the minimum value of beam quality in the differential range, wherein the differential beam quality indication information indicates that the beam quality reporting is less than the minimum value of beam quality in the differential range.

A communications apparatus, comprising:

• a receiver, configured to receive a reference signal sent by a network device;
• a processor, configured to measure the reference signal to obtain at least one piece of beam quality;
• and
• a transmitter, configured to report differential beam quality indication information to the network device, wherein the differential beam quality indication information indicates one or more of the following:
• that beam quality reporting is less than a minimum value of beam quality in a differential range and that beam quality corresponding to the differential beam quality indication information is a reporting threshold value, and
• wherein the transmitter is configured to report the differential beam quality indication information to the network device responsive to determining that the beam quality corresponding to the differential beam quality indication information is less than the reporting threshold value, wherein the differential beam quality indication information indicates that the beam quality corresponding to the differential beam quality indication information is the reporting threshold value.