Measurement method, terminal, device, and access network device

A beam measurement method, comprising:

• sending, by an access network device, synchronization signal blocks on a plurality of beams of a cell;
• sending, by the access network device, a message to a terminal device, wherein the message indicates a quantity of to-be-reported beams or at least one quality threshold of a to-be-reported beam of the terminal device, and the at least one quality threshold is used for beam measurement;
• and
• receiving, by the access network device, signal quality of the cell that is sent by the terminal device or an identifier that is of a to-be-reported beam of the cell and that is sent by the terminal device, wherein the signal quality of the cell or the identifier of the to-be-reported beam of the cell is obtained by using the synchronization signal blocks sent by the access network device.

A device, comprising:

• a processor;
• and
• a non-transitory memory, wherein the memory stores execution instructions, and wherein the processor executes the execution instructions to cause the device to perform the following steps:
• measuring signal quality of a plurality of beams, wherein the signal quality of the plurality of beams is obtained by using synchronization signal blocks, the signal quality of the plurality of beams comprises signal quality of a same beam at different moments, and the plurality of beams belong to one cell;
• and
• obtaining signal quality of the cell based on the signal quality of the plurality of beams;
• wherein the measuring the signal quality of the plurality of beams comprises measuring only some beams of the cell in response to the signal quality of the cell exceeding a first quality threshold, and the measuring only some beams of the cell comprises:
• measuring only a synchronization signal block that is sent on a beam whose filtered signal quality is best in the cell;
• or
• measuring only a synchronization signal burst in which a synchronization signal block sent on a beam whose filtered signal quality is best in the cell is located.