Positioning method, device, terminal and base station

A positioning method, applied to a second network device, wherein the second network device is one of a terminal and a network side device, the positioning method includes:

• receiving first information related to a random access process sent by a first network device, wherein the first information includes positioning information, and the first network device is one of the terminal and the network side device that is different from the second network device;
• wherein the positioning information includes at least one of the following information:
• an uplink positioning reference signal, configuration information of the uplink positioning reference signal, a downlink positioning reference signal, configuration information of the downlink positioning reference signal, a positioning measurement value, a positioning calculation result or terminal position information;
• sending second information related to the random access process, wherein the second information includes at least one of the positioning information;
• wherein when the second network device is the terminal and a downlink and uplink joint positioning method is used and based on network positioning, the receiving first information related to a random access process sent by a first network device and the sending second information related to the random access process, includes:
• receiving, by the terminal, the downlink positioning reference signal, and sending the second information including the positioning information;
• wherein the second information is at least one of message 3, message A, or message 5;
• the positioning information in the second information is a first positioning measurement value;
• after the network side device obtains the first positioning measurement value, obtains a second positioning measurement value through message 3, message A or message 5, and reports the first positioning measurement value and the second positioning measurement value to a location management function unit (LMF), wherein the first positioning measurement value and the second positioning measurement value are used by the LMF for completing positioning calculation based on the first positioning measurement value and the second positioning measurement value and obtaining a positioning measurement calculation result and/or the terminal position information, receiving, by the terminal, the first information carrying the positioning information sent by the network side device;
• wherein the first information is at least one of message 2, message 4, or message B, and the positioning information in the first information includes the positioning measurement calculation result and/or the terminal position information.

A network device, being a first network device, and comprising:

• a transceiver, a memory, a processor, and program instructions stored in the memory and executed by the processor;
• wherein, the transceiver receives and transmits data under the control of the processor, the program instructions in memory are read by the processor to perform the following steps:
• sending first information related to a random access process, wherein the first information includes positioning information;
• wherein the positioning information includes at least one of the following information:
• an uplink positioning reference signal, configuration information of the uplink positioning reference signal, a downlink positioning reference signal, configuration information of the downlink positioning reference signal, a positioning measurement value, a positioning calculation result or terminal position information;
• wherein when the first network device is a network side device and a downlink and uplink joint positioning method is used and based on network positioning, the sending first information related to a random access process includes:
• sending, by the network side device, the downlink positioning reference signal to a terminal;
• receiving, by the network side device, at least one of message 3, message A, or message 5 including a first positioning measurement value from the terminal;
• obtaining, by the network side device, the first positioning measurement value, and obtaining a second positioning measurement value through message 3, message A or message 5;
• reporting, by the network side device, the first positioning measurement value and the second positioning measurement value to a location management function unit (LMF), wherein the first positioning measurement value and the second positioning measurement value are used by the LMF for completing positioning calculation based on the first positioning measurement value and the second positioning measurement value and obtaining a positioning measurement calculation result and/or the terminal position information;
• and
• sending, by the network side device, the first information carrying the positioning information;
• wherein the first information is at least one of message 2, message 4 or message B, the positioning information in the first information includes the positioning measurement calculation result and/or the terminal position information.