Power control method and power control apparatus

An auxiliary power control method, comprising:

• generating at least one piece of first information comprising a reference signal;
• and
• sending, when a transmit end device transmits an uplink signal of a first time domain transmission length on a channel, the at least one piece of first information on the channel, wherein
• the at least one piece of first information is received by the transmit end device during the first time domain transmission length, so that the transmit end device calculates a downlink path loss according to measured power of a received reference signal and transmit power of the reference signal, compares the downlink path loss with a historically-measured path loss, and increases, if the calculated path loss is greater than the historically-measured path loss by more than a threshold, a frequency with which an uplink transmit power is to be adjusted during the first time domain transmission length;
• and the at least one piece of first information is used by the transmit end device to adjust the uplink transmit power during the first time domain transmission length at least according to the at least one piece of first information, and the first time domain transmission length does not exceed a time domain transmission length of a protocol data unit.

A power control apparatus, wherein the apparatus comprises:

• a transceiver;
• a memory, configured to store an instruction;
• and
• a processor, configured to execute the instruction stored in the memory, wherein the instruction enables the processor to perform:
• receiving, during transmission of an uplink signal of a first time domain transmission length on a channel, at least one piece of first information transmitted on the channel, wherein the first time domain transmission length does not exceed a time domain transmission length of a protocol data unit, the first information comprising a reference signal;
• calculating a downlink path loss according to measured power of a received reference signal and transmit power of the reference signal;
• comparing the downlink path loss with a historically-measured path loss;
• if the calculated path loss is greater than the historically-measured path loss by more than a threshold, increasing a frequency with which an uplink transmit power is to be adjusted during the first time domain transmission length;
• and
• adjusting the uplink transmit power with the increased frequency during the first time domain transmission length.

An auxiliary power control apparatus, wherein the apparatus comprises:

• a transceiver;
• a memory, configured to store an instruction;
• and
• a processor, configured to execute the instruction stored in the memory, wherein the instruction enables the processor to perform:
• generating at least one piece of first information;
• and
• sending, when a transmit end device transmits an uplink signal of a first time domain transmission length on a channel, the at least one piece of first information on the channel, wherein
• the at least one piece of first information is received by the transmit end device during the first time domain transmission length, so that the transmit end device calculates a downlink path loss according to measured power of a received reference signal and transmit power of the reference signal, compares the downlink path loss with a path loss historically measured, and increases, if the calculated path loss is greater than the historically measured path loss by more than a threshold, a frequency with which an uplink transmit power is to be adjusted during the first time domain transmission length;
• and the at least one piece of first information is used by the transmit end device to adjust the uplink transmit power during the first time domain transmission length at least according to the at least one piece of first information, and the first time domain transmission length does not exceed a time domain transmission length of a protocol data unit.