Positioning method and device

A positioning controller, comprising:

• a transmitter, configured to send, to a user device, a first message carrying positioning auxiliary information comprising an identifier of a first base station and an identifier of at least one second base station, wherein the first message is used to instruct the user device to measure signals transmitted by the first base station and the at least one second base station, and wherein the first base station is a serving base station of the user device, the at least one second base station is a neighboring base station of the first base station, and the positioning controller is an access network device;
• a receiver, configured to receive a second message carrying a positioning measurement result sent by the user device, wherein the positioning measurement result comprises results of measurement performed by the user device on the signals transmitted by the first base station and the at least one second base station;
• and
• a processor, configured to:
• obtain location information of the first base station identified by the identifier of the first base station and location information of the at least one second base station identified by the identifier of the at least one second base station, and
• determine location information of the user device according to the positioning measurement result, the location information of the first base station, and the location information of the at least one second base station.

A user device, comprising:

• a receiver, configured to receive a first message carrying positioning auxiliary information sent by a positioning controller, wherein the positioning auxiliary information comprises an identifier of a first base station and an identifier of at least one second base station, wherein the first message is used to instruct the user device to measure signals transmitted by the first base station and the at least one second base station, and wherein the first base station is a serving base station of the user device, the at least one second base station is a neighboring base station of the first base station, and the positioning controller is an access network device;
• a processor, configured to obtain a positioning measurement result according to the identifier of the first base station and the identifier of the at least one second base station, wherein the positioning measurement result comprises results of measurement performed by the user device on the signals transmitted by the first base station and the at least one second base station;
• and
• a transmitter, configured to send, to the positioning controller, a second message carrying the positioning measurement result, wherein the positioning measurement result is used to determine location information of the user device according to the positioning measurement result.