Collision processing and indication method, device, apparatus, and medium

An indication method, comprising:

• sending, by a base station, to a user equipment (UE) i) a downlink positioning reference signal (DL PRS) type comprising aperiodic PRS or semi-persistent PRS, ii) collision determination information, and iii) one of or a combination of following information:
• second indication information, and third indication information;
• wherein the second indication information is used for indicating priority levels of downlink signals or channels, and the third indication information is used for indicating a priority level of the second indication information;
• sending, by the base station, a DL PRS to the UE;
• wherein the UE receives the DL PRS type and chooses, according to the DL PRS type and the collision determination information, to discard the DL PRS or other downlink signals where a collision occurs between the aperiodic/semi-persistent PRS and the other downlink signals.

User equipment (UE), comprising:

• a processor, configured to read a program in a memory to implement following steps:
• obtaining a downlink positioning reference signal (DL PRS) type and collision determination information, the collision determination information being content carried by a downlink signal or channel, and one of or a combination of following information:
• second indication information, and third indication information;
• wherein the DL PRS type is aperiodic PRS or semi-persistent PRS, the second indication information is used for indicating priority levels of downlink signals or channels, and the third indication information is used for indicating a priority level of the second indication information;
• choosing, according to the DL PRS type and the collision determination information, to discard a DL PRS or discard other downlink signals or channels in an orthogonal frequency division multiplexing (OFDM) symbol where a collision occurs between the aperiodic/semi-persistent PRS and the other downlink signals;
• a transceiver, configured to receive and send data under the control of the processor.