CN-115707095-B - Terminal positioning method and device, terminal and network side equipment

Abstract

The invention provides a terminal positioning method, a terminal positioning device, a terminal and network side equipment. The method comprises the steps of obtaining configuration information of a downlink positioning reference signal sent by network side equipment when the terminal is in an inactive state, and carrying out positioning measurement according to the configuration information. By adopting the method, the terminal in the inactive state can obtain the configuration information of the downlink positioning reference signal from the network side equipment, and in the inactive state, the positioning measurement can be carried out according to the configuration information, so that the terminal can still carry out positioning service after entering the inactive state.

Inventors

• TANG XIAOXUAN
• ZHANG JINGWEN

Assignees

• 中国移动通信有限公司研究院
• 中国移动通信集团有限公司

Dates

Publication Date

20260505

Application Date

20210806

Claims (18)

1. 1. A terminal positioning method, performed by a terminal, the method comprising: When the terminal is in an inactive state, acquiring configuration information of a downlink positioning reference signal which is common to a plurality of terminals or is special for the terminal and transmitted by network side equipment; according to the configuration information, positioning measurement is carried out; The method further comprises the steps of: the terminal sends positioning related information to network side equipment when the current downlink positioning reference signal configuration does not meet the current positioning precision requirement and/or time delay requirement in an inactive state, wherein the positioning related information comprises request auxiliary information which comprises positioning requirement information, wherein the configuration information comprises update configuration based on the original downlink positioning reference signal configuration of the terminal and/or configuration of a newly-added downlink positioning reference signal received by the terminal; the sending positioning related information to the network side equipment comprises the following steps: Indicating that the information sent to the network side equipment is the positioning related information by at least one of the following modes: The positioning related information comprises N-bit preset indication information, wherein N is an integer greater than or equal to 1; the destination receiving address of the positioning related information is a positioning management function (LMF) unit; when the positioning related information is sent to the network side equipment, a message of the positioning related information is sent through a pre-configured synchronization signal and a first wave beam bearer of a PBCH block SSB; The configuration information is a predefined configuration of a downlink positioning reference signal related to the first beam, or a configuration determined by the downlink positioning reference signal based on the first beam.
2. 2. The terminal positioning method according to claim 1, wherein, The positioning related information further comprises positioning measurement information.
3. 3. The terminal positioning method according to claim 1, wherein the sending positioning related information to the network side device includes sending the positioning related information to the network side device by one of: MsgA in the random access procedure; Msg3 in random access procedure; Scheduling request SR; configuring the resources allocated by the authorized CG-config; Preamble.
4. 4. The terminal positioning method according to claim 1, wherein, Acquiring configuration information of a downlink positioning reference signal common to a plurality of terminals sent by network side equipment through at least one of the following messages: an RRC release message; A system message; paging messages.
5. 5. The terminal positioning method according to claim 1, wherein, Acquiring configuration information of a downlink positioning reference signal which is sent by terminal side equipment and is special for the terminal through at least one of the following messages: an RRC release message; Msg4 in random access procedure; Msg B in random access procedure.
6. 6. The terminal positioning method according to claim 1, wherein when the message of the positioning related information is transmitted through the first beam bearer, the method further comprises: And carrying out positioning measurement by adopting the configuration of the downlink positioning reference signals corresponding to the first wave beam.
7. 7. The terminal positioning method according to claim 1, wherein the configuration information includes an index corresponding to the indicated downlink positioning reference signal configuration and/or a timer of the indicated downlink positioning reference signal configuration valid time.
8. 8. The terminal positioning method according to claim 1, wherein the request for assistance information further comprises at least one of: beam switch request information; a switch request for a positioning reference signal request; Configuring an index; Positioning reference signal configuration; a low battery indication; a base station number; node number; Positioning the starting time of the process; and (5) positioning the reporting time of the result.
9. 9. A terminal positioning method, performed by a network side device, the method comprising: Transmitting configuration information of a downlink positioning reference signal common to a plurality of terminals or specific to one terminal to a terminal in an inactive state; The method further comprises the steps of: Receiving positioning related information sent to network side equipment when the current downlink positioning reference signal configuration in an inactive state does not meet the current positioning precision requirement and/or time delay requirement, wherein the positioning related information comprises request auxiliary information and the request auxiliary information comprises positioning requirement information; After obtaining the configuration information sent by the LMF unit according to the request auxiliary information in the positioning related information, sending the configuration information to the terminal, wherein the configuration information comprises updated configuration based on original downlink positioning reference signal configuration of the terminal and/or configuration of newly added downlink positioning reference signals received by the terminal; the receiving the positioning related information sent by the terminal in the inactive state to the network side equipment comprises the following steps: Determining the received information as the positioning related information by at least one of: The positioning related information comprises N-bit preset indication information, wherein N is an integer greater than or equal to 1; the destination receiving address of the positioning related information is a positioning management function (LMF) unit; when receiving positioning related information sent by the terminal in an inactive state to network side equipment, sending the positioning related information through a synchronization signal configured for the terminal in advance and a first wave beam bearer of a PBCH block SSB; The configuration information is a predefined configuration of a downlink positioning reference signal related to the first beam, or a configuration determined by the downlink positioning reference signal based on the first beam.
10. 10. The terminal positioning method according to claim 9, wherein the positioning related information further comprises positioning measurement information.
11. 11. The terminal positioning method according to claim 9, wherein receiving positioning related information sent by the terminal in an inactive state to a network side device includes: receiving positioning related information sent by a terminal in one of the following modes: MsgA in the random access procedure; Msg3 in random access procedure; Scheduling request SR; configuring the resources allocated by the authorized CG-config; Preamble.
12. 12. The terminal positioning method according to claim 9, wherein when the message of the positioning related information is transmitted through a synchronization signal configured in advance for the terminal and a first beam bearer of the PBCH block SSB, the method further comprises: Transmitting the configuration of the downlink positioning reference signal corresponding to the first wave beam to a terminal; and transmitting a downlink positioning reference signal to the terminal through the first beam.
13. 13. A terminal comprising a transceiver and a processor, wherein: the transceiver is used for acquiring configuration information of a downlink positioning reference signal which is common to a plurality of terminals or is special for the terminals and transmitted by the network side equipment when the terminals are in an inactive state; the processor is used for carrying out positioning measurement according to the configuration information; The transceiver is also for: the terminal sends positioning related information to network side equipment when the current downlink positioning reference signal configuration does not meet the current positioning precision requirement and/or time delay requirement in an inactive state, wherein the positioning related information comprises request auxiliary information which comprises positioning requirement information, wherein the configuration information comprises update configuration based on the original downlink positioning reference signal configuration of the terminal and/or configuration of a newly-added downlink positioning reference signal received by the terminal; the transceiver sends positioning related information to the network side equipment, and the positioning related information comprises: Indicating that the information sent to the network side equipment is the positioning related information by at least one of the following modes: The positioning related information comprises N-bit preset indication information, wherein N is an integer greater than or equal to 1; the destination receiving address of the positioning related information is a positioning management function (LMF) unit; when the positioning related information is sent to the network side equipment, a message of the positioning related information is sent through a pre-configured synchronization signal and a first wave beam bearer of a PBCH block SSB; The configuration information is a predefined configuration of a downlink positioning reference signal related to the first beam, or a configuration determined by the downlink positioning reference signal based on the first beam.
14. 14. A network side device comprising a transceiver, wherein: The transceiver is used for sending configuration information of a downlink positioning reference signal which is common to a plurality of terminals or is special for one terminal to the terminal in the inactive state; The transceiver is also for: Receiving positioning related information sent to network side equipment when the current downlink positioning reference signal configuration of the terminal in an inactive state does not meet the current positioning precision requirement and/or time delay requirement, wherein the positioning related information comprises request auxiliary information which comprises positioning requirement information, and the positioning requirement information comprises precision requirement information and/or time delay requirement information; transmitting the positioning related information to a positioning management function (LMF) unit; After obtaining the configuration information sent by the LMF unit according to the request auxiliary information in the positioning related information, sending the configuration information to the terminal, wherein the configuration information comprises updated configuration based on original downlink positioning reference signal configuration of the terminal and/or configuration of newly added downlink positioning reference signals received by the terminal; the transceiver receives positioning related information sent by the terminal in a non-activated state to a network side device, and the positioning related information comprises: Determining the received information as the positioning related information by at least one of: The positioning related information comprises N-bit preset indication information, wherein N is an integer greater than or equal to 1; the destination receiving address of the positioning related information is a positioning management function (LMF) unit; when receiving positioning related information sent by the terminal in an inactive state to network side equipment, sending the positioning related information through a synchronization signal configured for the terminal in advance and a first wave beam bearer of a PBCH block SSB; The configuration information is a predefined configuration of a downlink positioning reference signal related to the first beam, or a configuration determined by the downlink positioning reference signal based on the first beam.
15. 15. A terminal positioning device, characterized by being executed by a terminal, the device comprising: The information transmission unit is used for acquiring configuration information of a downlink positioning reference signal which is common to a plurality of terminals or is special for the terminals and transmitted by the network side equipment when the terminals are in an inactive state; The positioning unit is used for performing positioning measurement according to the configuration information; The information transmission unit is further configured to: the terminal sends positioning related information to network side equipment when the current downlink positioning reference signal configuration does not meet the current positioning precision requirement and/or time delay requirement in an inactive state, wherein the positioning related information comprises request auxiliary information which comprises positioning requirement information, wherein the configuration information comprises update configuration based on the original downlink positioning reference signal configuration of the terminal and/or configuration of a newly-added downlink positioning reference signal received by the terminal; The information transmission unit sends positioning related information to the network side equipment, and the information transmission unit comprises: Indicating that the information sent to the network side equipment is the positioning related information by at least one of the following modes: The positioning related information comprises N-bit preset indication information, wherein N is an integer greater than or equal to 1; the destination receiving address of the positioning related information is a positioning management function (LMF) unit; when the positioning related information is sent to the network side equipment, a message of the positioning related information is sent through a pre-configured synchronization signal and a first wave beam bearer of a PBCH block SSB; The configuration information is a predefined configuration of a downlink positioning reference signal related to the first beam, or a configuration determined by the downlink positioning reference signal based on the first beam.
16. 16. A terminal positioning apparatus, characterized by being executed by a network-side device, the apparatus comprising: an information sending unit, configured to send configuration information of a downlink positioning reference signal common to a plurality of terminals or specific to one of the terminals to a terminal in an inactive state; The information transmitting unit is further configured to: Receiving positioning related information sent to network side equipment when the current downlink positioning reference signal configuration of the terminal in an inactive state does not meet the current positioning precision requirement and/or time delay requirement, wherein the positioning related information comprises request auxiliary information which comprises positioning requirement information, and the positioning requirement information comprises precision requirement information and/or time delay requirement information; transmitting the positioning related information to a positioning management function (LMF) unit; After obtaining the configuration information sent by the LMF unit according to the request auxiliary information in the positioning related information, sending the configuration information to the terminal, wherein the configuration information comprises updated configuration based on original downlink positioning reference signal configuration of the terminal and/or configuration of newly added downlink positioning reference signals received by the terminal; The information sending unit receives positioning related information sent by the terminal in a non-activated state to network side equipment, and the information sending unit comprises: Determining the received information as the positioning related information by at least one of: The positioning related information comprises N-bit preset indication information, wherein N is an integer greater than or equal to 1; the destination receiving address of the positioning related information is a positioning management function (LMF) unit; when receiving positioning related information sent by the terminal in an inactive state to network side equipment, sending the positioning related information through a synchronization signal configured for the terminal in advance and a first wave beam bearer of a PBCH block SSB; The configuration information is a predefined configuration of a downlink positioning reference signal related to the first beam, or a configuration determined by the downlink positioning reference signal based on the first beam.
17. 17. A network device comprising a processor, a memory and a program stored on the memory and executable on the processor, the program when executed by the processor implementing the terminal positioning method according to any one of claims 1 to 8 or the terminal positioning method according to any one of claims 9 to 12.
18. 18. A readable storage medium, characterized in that the readable storage medium has stored thereon a program which, when executed by a processor, implements the steps of the terminal positioning method according to any one of claims 1 to 8 or the steps of the terminal positioning method according to any one of claims 9 to 12.

Description

Terminal positioning method and device, terminal and network side equipment Technical Field The present invention relates to the field of wireless technologies, and in particular, to a terminal positioning method, a device, a terminal, and a network side device. Background When the terminal UE is in a deactivated state, after receiving the positioning service request, the access and mobility management function (ACCESS AND Mobility Management Function, AMF) unit triggers a service request at the network side to establish/activate a signaling connection with the UE, and when the UE is in an idle state, a specific service gNB or ng-eNB needs to be allocated. Before the positioning procedure starts, it is assumed that the UE has entered the connected state, i.e. before triggering the initial step of the positioning procedure, any signaling may be required to switch the UE to the connected state. The pulled signaling connection may subsequently be released by the NG-RAN due to inactivity of signaling and data while the positioning operation is in progress. Current location services only support UEs in a connected state. For example, periodic positioning is required for terminals in factories or markets, although no other service needs to be maintained in a connected state or to be converted into a connected state from time to time with a positioning period. Because the terminals mainly use positioning service and have few data services, and the process of converting the deactivated state UE into the connected state brings higher time delay, if the positioning service of the deactivated state terminal can be realized, the energy consumption of the terminal can be effectively reduced, and the time delay of the positioning service can be reduced. Disclosure of Invention The invention aims to provide a terminal positioning method, a device, a terminal and network side equipment, which are used for solving the problems of high terminal energy consumption and high positioning service time delay caused by the fact that a terminal in an inactive state must be converted into a connection state to realize positioning service in the prior art. The embodiment of the invention provides a terminal positioning method, which is executed by a terminal and comprises the following steps: When the terminal is in an inactive state, acquiring configuration information of a downlink positioning reference signal sent by network side equipment; and carrying out positioning measurement according to the configuration information. Optionally, the terminal positioning method, wherein the method further includes: And when the terminal is in an inactive state, sending positioning related information to the network side equipment, wherein the positioning related information comprises request auxiliary information and/or positioning measurement information. Optionally, in the case that the positioning related information includes request auxiliary information, the configuration information includes an update configuration based on an original downlink positioning reference signal configuration of the terminal, and/or includes a configuration of a new downlink positioning reference signal received by the terminal. Optionally, the method for positioning a terminal, wherein the sending positioning related information to the network side device includes: Indicating that the information sent to the network side equipment is the positioning related information by at least one of the following modes: The positioning related information comprises N-bit preset indication information, wherein N is an integer greater than or equal to 1; The destination receiving address of the location related information is a location management function LMF unit. Optionally, the method for positioning a terminal, wherein the sending positioning related information to the network side device includes sending the positioning related information to the network side device by one of the following modes: MsgA in the random access procedure; Msg3 in random access procedure; Scheduling request SR; configuring the resources allocated by the authorized CG-config; Preamble. Optionally, in the terminal positioning method, when the positioning related information is sent to the network side device, a message of the positioning related information is sent through a preconfigured synchronization signal and a first beam bearer of a PBCH block SSB; the configuration information is based on the configuration of the downlink positioning reference signal corresponding to the first beam. Optionally, in the terminal positioning method, the acquiring configuration information of the downlink positioning reference signal sent by the network side device includes: Acquiring configuration information of a downlink positioning reference signal common to a plurality of terminals sent by network side equipment through at least one of the following messages: an RRC release message; A system message