Positioning request processing method, and device and system

A positioning request processing method, wherein the method comprises:

• receiving, by a first terminal device, fifth indication information from a mobility management network element, wherein the fifth indication information indicates the first terminal device to establish a protocol data unit (PDU) session of the first terminal device;
• establishing, by the first terminal device, the PDU session of the first terminal device based on the fifth indication information;
• receiving, by the first terminal device, a second message from a location management network element by using the PDU session of the first terminal device;
• obtaining, by the first terminal device, positioning data based on the second message;
• and
• sending, by the first terminal device, the positioning data to the location management network element by using the PDU session of the first terminal device.

A communication apparatus, wherein the communication apparatus comprises at least one processor and a memory coupled to the at least one processor and storing programming instructions for execution by the at least one processor to cause the communication apparatus to:

• receive a first message from a mobility management network element, wherein the first message is used to trigger the communication apparatus to obtain location information of a first terminal device through user plane positioning;
• after receiving the first message from the mobility management network element, determine to use a user plane connection to obtain the location information of the first terminal device;
• and
• send a second message to the first terminal device based on the first message by using a protocol data unit (PDU) session of the first terminal device, wherein the PDU session is the user plane connection, and the second message indicates the first terminal device to report positioning data.

A communication apparatus, wherein the communication apparatus comprises at least one processor and a memory coupled to the at least one processor and storing programming instructions for execution by the at least one processor to cause the communication apparatus to:

• receive fifth indication information from a mobility management network element, wherein the fifth indication information indicates the communication apparatus to establish a protocol data unit (PDU) session of the communication apparatus;
• establish the PDU session of the communication apparatus based on the fifth indication information;
• receive a second message from a location management network element by using the PDU session of the communication apparatus;
• obtain positioning data based on the second message;
• and
• send the positioning data to the location management network element by using the PDU session of the communication apparatus.