Positioning method, device and related equipment

Abstract

The present application discloses a positioning method, an apparatus and related devices, which belong to the field of communication technology, in which the method includes: a terminal receiving first positioning assistance data, where the first positioning assistance data is used to indicate configuration information of a PRS for on-demand selection, and / or the terminal sending positioning assistance data request information, where the positioning assistance data request information is used to indicate related request information of a PRS for on-demand selection.

Description

[Technical Field]

[0001] (CROSS-REFERENCE TO RELATED APPLICATIONS) This application claims priority to Chinese Patent Application No. 202110694013.3 filed in China on June 22, 2021, the entire contents of which are incorporated herein by reference.

[0002] The present application belongs to the field of communication technology, and specifically relates to a positioning method, apparatus and related equipment. [Background technology]

[0003] In the prior art, the configuration information of a positioning reference signal (PRS) is determined by a next generation base station (gNB) or when the network is installed. When there is no positioning demand, the positioning reference signal may still be transmitted. When there is an urgent or low-latency demand, measurement and calculation cannot be performed until a specific transmission period, which causes the positioning reference signal to not be transmitted in a timely manner. In other words, the configuration method of a positioning reference signal in the current technology lacks flexibility, resulting in problems such as wasted positioning resources and inability to report measurement results in a timely manner. Summary of the Invention [Problem to be solved by the invention]

[0004] The embodiments of the present application provide a positioning method, apparatus, and related devices that can solve the problem of lack of flexibility in conventional methods for determining positioning reference signals. [Means for solving the problem]

[0005] According to a first aspect, there is provided a positioning method, the positioning method comprising: receiving, by a terminal, first positioning assistance data, the first positioning assistance data being used to indicate configuration information of a PRS for on-demand selection; and / or The terminal transmits positioning assistance data request information, where the positioning assistance data request information is used to indicate related request information of a PRS for on-demand selection.

[0006] According to a second aspect, there is provided a positioning method, the positioning method comprising: a network side device transmitting first positioning assistance data to the terminal, the first positioning assistance data being used to indicate configuration information of a PRS for on-demand selection; and / or The network side device receives positioning assistance data request information sent by the terminal, and the positioning assistance data request information is used to indicate related request information of a PRS for on-demand selection.

[0007] According to a third aspect, there is provided a positioning device, the positioning device comprising: a receiving module for receiving first positioning assistance data, the first positioning assistance data being used to indicate configuration information of a PRS for on-demand selection; and / or A transmitting module for transmitting positioning assistance data request information, the positioning assistance data request information being used to indicate relevant request information of a PRS for on-demand selection.

[0008] According to a fourth aspect, there is provided a positioning device, the positioning device comprising: a transmitting module for transmitting first positioning assistance data, the first positioning assistance data being used to indicate configuration information of a PRS for on-demand selection; and / or A receiving module for receiving positioning assistance data request information, the positioning assistance data request information being used to indicate relevant request information of a PRS for on-demand selection.

[0009] According to a fifth aspect, there is provided a terminal including a processor, a memory, and a program or instructions stored in the memory and operable to run on the processor, the program or instructions implementing the steps of the positioning method according to the first aspect when executed by the processor.

[0010] According to a sixth aspect, there is provided a network side device, the network side device including a processor, a memory, and a program or instructions stored in the memory and operable to run on the processor, the program or instructions realizing the steps of the positioning method according to the second aspect when executed by the processor.

[0011] According to a seventh aspect, there is provided a readable storage medium having a program or instructions stored on the readable storage medium, the program or instructions realizing the steps of the positioning method according to the first or second aspect when executed by a processor.

[0012] According to an eighth aspect, there is provided a chip, the chip including a processor and a communication interface, the communication interface being coupled to the processor, the processor running a program or instruction of a network side device and used to realize the positioning method described in the first or second aspect.

[0013] According to a ninth aspect, there is provided a computer program product, the computer program product being stored on a storage medium, the computer program product being executed by at least one processor to implement the steps of the method according to the first aspect or to implement the steps of the method according to the second aspect. [Effects of the Invention]

[0014] In an embodiment of the present application, a terminal receives first positioning assistance data, which is used to indicate configuration information of a PRS for on-demand selection, and / or the terminal transmits positioning assistance data request information, which is used to indicate related request information of a PRS for on-demand selection. The terminal can select a PRS on-demand by receiving the first positioning assistance data and / or transmitting the positioning assistance data request information, and such a manner of dynamically determining a PRS can be adjusted according to actual conditions, thereby improving the flexibility of PRS determination. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a structural diagram of a network system according to an embodiment of the present application; [Figure 2] 1 is a flowchart of a positioning method according to an embodiment of the present application. [Figure 3] 4 is another flowchart of a positioning method according to an embodiment of the present application. [Figure 4a] 1 is a flowchart of a key information acquisition process according to an embodiment of the present application. [Figure 4b] 10 is another flowchart of the key information acquisition process according to an embodiment of the present application. [Figure 4c] 4 is another flowchart of a positioning method according to an embodiment of the present application. [Figure 5] 1 is a structural diagram of a positioning device according to an embodiment of the present application; [Figure 6] FIG. 2 is another structural diagram of a positioning device according to an embodiment of the present application; [Figure 7] 1 is a structural diagram of a communication device according to an embodiment of the present application; [Figure 8] FIG. 1 is a structural diagram of a terminal according to an embodiment of the present application; [Figure 9] FIG. 2 is a structural diagram of a network-side device according to an embodiment of the present application; DETAILED DESCRIPTION OF THE INVENTION

[0016] The following clearly describes the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present application fall within the scope of protection of the present application.

[0017] The terms "first," "second," etc. in the specification and claims of this application are intended to distinguish between similar objects and are not intended to describe a particular order or sequence. It should be understood that terms used in this manner are interchangeable where appropriate, so that embodiments of this application may be performed in orders other than those illustrated or described herein, and that objects distinguished by "first" and "second" generally are of the same type and do not limit the number of objects; for example, a first object may be one or more. Note that "and / or" in the specification and claims indicates at least one of connected objects, and the character " / " generally indicates an "or" relationship between adjacent related objects. The term "transmission" in this application refers to the delivery of a signal, not the narrow definition of signal transmission.

[0018] It should be noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be applied to other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of the present application are always used interchangeably, and the described techniques may be used in the above-mentioned systems and radio technologies as well as other systems and radio technologies. However, although the following description describes New Radio (NR) systems for illustrative purposes and uses NR terminology in most of the following description, these technologies may also be used in applications other than NR system applications, such as sixth generation (6G) systems. th This may be applied to 6G (6th Generation) communication systems.

[0019] 1 shows a structural diagram of a wireless communication system to which the embodiments of the present application can be applied. The wireless communication system includes a terminal 11 and a network side device 12. Here, the terminal 11 may be referred to as a terminal device or a user equipment (UE), and may be a terminal side device such as a mobile phone, a tablet computer, a laptop computer (also called a notebook computer), a personal digital assistant (PDA), a palmtop computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), a wearable device, a vehicle user equipment (VUE), a pedestrian user equipment (PUE), etc., and wearable devices include a bracelet, an earphone, glasses, etc. It should be noted that the specific type of the terminal 11 in the embodiments of the present application is not limited.The network side equipment 12 may be a base station or a core network, where the base station may be called a Node B, an evolved Node B, an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a B node, an evolved B node (eNB), a home B node, a home evolved B node, a wireless local area network (WLAN) access point, a wireless fidelity (WiFi) node, a transmitting receiving point (TRP), or any other suitable term in the art, as long as the same technical effect is achieved. The base station is not limited to a specific technical term. For illustrative purposes, the embodiments of this application only take base stations in an NR system as examples, but do not limit the specific type of base station.

[0020] The positioning method according to the embodiment of the present application will be described in detail below with reference to specific examples and application scenarios in conjunction with the drawings.

[0021] Referring to FIG. 2, FIG. 2 is a flowchart of a positioning method according to an embodiment of the present application, which includes:

[0022] Step 201: the terminal receives first positioning assistance data, which is used to indicate configuration information of a PRS for on-demand selection, and / or the terminal transmits positioning assistance data request information, which is used to indicate related request information of a PRS for on-demand selection.

[0023] The terminal in this application may be understood as a terminal that subscribes to an on-demand selected service, or as a terminal that supports an on-demand selected service. In the above, the first positioning assistance data may be sent by a network side device, for example, a Location Management Function (LMF), an Access and Mobility Management Function (AMF), or a base station sends the first positioning assistance data to the terminal. The first positioning assistance data is used to indicate configuration information of a PRS for on-demand selection, for example, the first positioning assistance data is First key information for analyzing the PRS selected on demand, which may be understood as first key information of support information for analyzing the PRS selected on demand; at least one PRS configuration set for on-demand selection; PRS resource information for on-demand selection and and PRS response information for on-demand selection.

[0024] In the above, the key information is used by the terminal to analyze the support information of the PRS selected on demand, and at least one PRS configuration set may include identifier information of the PRS configuration set.

[0025] In the above, the PRS selected on demand may be understood as one or more pre-configured PRSs, or as a changeable PRS (i.e., based on protocols prior to Release 17 (R17) the PRS is installed by the network or configured by the base station itself, and the UE and LMF have no influence on the configuration), and the PRS for on-demand selection may be configured to be selected on demand according to the request of the UE and LMF.

[0026] It should be clarified that "selecting on demand" in this application may be understood as "selected on demand."

[0027] In one embodiment, the PRS may be a positioning signal or a reference signal for positioning, and the positioning signal may include at least one of a downlink (DL) PRS, a channel-state information reference signal (CSI-RS), a synchronization signal block (SSB), a tracking reference signal (TRS), and a sounding reference signal.

[0028] The PRS resource information for on-demand selection is PRS time domain resources for on-demand selection by network side equipment; PRS frequency domain resources for on-demand selection of the network side device; The bandwidth of the PRS for on-demand selection of the network side device; the duration of the PRS for on-demand selection of the network side device; A period of the PRS for on-demand selection of the network side device; a time domain offset of a PRS for on-demand selection by the network side device; and The start time of the PRS for on-demand selection of the network side device; a symbol of a PRS for on-demand selection by the network side device; and the number of repetitions of the PRS for on-demand selection by the network side device.

[0029] Furthermore, the resource information of the PRS for on-demand selection includes: The maximum number of PRS positioning reference signal resources for on-demand selection by network side equipment; and The maximum number of PRS positioning reference signal resource sets for on-demand selection by the network side device; and The maximum number of TRPs of PRSs for on-demand selection by the network side device; and The maximum bandwidth of the PRS for on-demand selection of the network side device; the maximum duration of the PRS for on-demand selection of the network side device; A minimum period of the PRS for on-demand selection of the network side device; The maximum period of the PRS for on-demand selection of the network side device; the earliest time domain offset of a PRS for on-demand selection by the network side device; the earliest start time of a PRS for on-demand selection by the network side device; the maximum number of symbols of the PRS for on-demand selection by the network side device; and and the maximum number of repetitions of the PRS for on-demand selection by the network side device.

[0030] The response information of the PRS for on-demand selection includes: Error indication information; Error type information; No available resources information, Error cause information, Acknowledgement (ACK) information; Negative Acknowledgement (NACK) information, Information that does not support on-demand selection of PRS and Identifier information of a target PRS configuration set, wherein the at least one PRS configuration set includes the target PRS configuration set; request success indication information or request failure indication information; Configuration success instruction information or configuration failure instruction information; and configuration information of the target PRS configuration set.

[0031] The process of selecting a PRS on demand may be initiated by a network side device, for example, the network side device transmits first positioning assistance data to the terminal. The process of selecting a PRS on demand may be initiated by a terminal, for example, the terminal transmits positioning assistance data request information to the network side device, where the positioning assistance data request information includes: On-demand selected positioning reference signal (PRS) request information; and a PRS key request information selected on demand.

[0032] Specifically, the on-demand selected PRS key request information is used to obtain key information and employ the key information to analyze the assistance information of the on-demand selected PRS.

[0033] In the above, the terminal may determine the selected PRS on-demand based on the received first positioning assistance data, or the terminal may determine the selected PRS on-demand or request to determine the selected PRS on-demand by transmitting positioning assistance data request information, or the terminal may determine the selected PRS on-demand based on the first positioning assistance data and the positioning assistance data request information. It should be noted that the step of the terminal receiving the first positioning assistance data may be located before the step of the terminal transmitting the positioning assistance data request information or may be located after the step of the terminal transmitting the positioning assistance data request information, and may be flexibly adjusted according to specific actual circumstances and is not limited herein.

[0034] In this embodiment, the terminal receives first positioning assistance data, which is used to indicate configuration information of a PRS for on-demand selection, and / or the terminal transmits positioning assistance data request information, which is used to indicate related request information of a PRS for on-demand selection. The terminal can select a PRS on-demand by receiving the first positioning assistance data and / or transmitting the positioning assistance data request information, and such a manner of dynamically determining a PRS can be adjusted according to actual conditions, improving the flexibility of PRS determination and the effective utilization rate of PRSs.

[0035] The first positioning assistance data may be transmitted to the terminal by a network side device, for example, by a base station (the base station transmits by broadcasting), or may be transmitted to the terminal by an LMF.

[0036] The PRS selected on demand may be determined by a network side device (eg, a base station or an LMF) or may be determined by the terminal.

[0037] The on-demand selected PRS key request information may be carried in the positioning assistance data request information and transmitted alone, in which case the positioning assistance data request information does not carry the on-demand selected PRS request information. The on-demand selected PRS key request information may be transmitted together with the on-demand selected PRS request information, in which case the positioning assistance data request information carries the on-demand selected PRS key request information and the on-demand selected PRS request information, and the terminal can transmit this positioning assistance data request information to the LMF.

[0038] The on-demand selected PRS key request information may also be transmitted without being carried in a positioning assistance data request information, for example, the on-demand selected PRS request information may be transmitted carried in a positioning assistance data request information, or the on-demand selected PRS key request information may be transmitted carried in a pre-configured service request message, a pre-configured registration request message or an LTE Positioning Protocol (LPP) message.

[0039] When the terminal is in a connected state, the pre-configured service request message is a service request message (which may also be understood as a user plane session connection) that does not carry a Protocol Data Unit (PDU) session establishment, or when the terminal is in a connected state, the pre-configured service request message is a service request message that carries on-demand selected PRS key request information, and the pre-configured service request may also be understood as a dedicated or special service request that is used to request a key (e.g., requesting an on-demand selected PRS key). In another possible implementation manner, the pre-configured service request is a supplementary message of a service request, and when the service request is triggered by the pre-configured service request, the pre-configured service request may carry a key request message.

[0040] Alternatively, when the terminal is in an unconnected state, the preset service request message is transmitted by an SRB 2 in a signaling radio bearer (SRB) or a data radio bearer (DRB). The terminal carries on-demand selected PRS key request information in a preset service request message, a preset registration request message, or an LPP message and transmits it to the AMF or base station.

[0041] In the above, the on-demand selected PRS key request information is transmitted as follows: a first preset Quality of Service (QoS) condition, in which case transmission of the selected PRS key request information on demand is triggered based on the first preset condition; a measurement quality of the terminal positioning signal measurement is less than a first threshold; The positioning quality of the location information of the terminal positioning is less than a second threshold; The location information of the terminal positioning does not satisfy a second preset Qos condition; The terminal receives on-demand selected PRS measurement request information for instructing the terminal to measure on-demand selected PRSs or the first positioning assistance data; The measurement result of the terminal positioning signal measurement is smaller or larger than a third threshold, for example, the Reference Signal Received Power (RSRP) is smaller than 30 dbm, or the Reference Signal Time Difference (RSTD) is larger than the distance (TRP1-TRP2); The trigger is based on at least one of the terminal subscribing to a selected PRS service on demand or the terminal requesting a selected service on demand.

[0042] In the above, the positioning signal may be understood as a reference signal for positioning, and the positioning signal includes at least one of a downlink positioning reference signal (DL PRS), a channel-state information reference signal (CSI-RS), a synchronization signal block (SSB), a tracking reference signal (TRS), and a sounding reference signal (SRS), etc.

[0043] The location information of the terminal positioning includes, but is not limited to, absolute location information (e.g., longitude and latitude information), relative location information, etc. The measurement information of the terminal positioning signal includes, but is not limited to, a Reference Signal Time Difference (RSTD) measurement result, a Round-Trip Delay (RTT) or Angle of Arrival (AOA) measurement result, an Angle of Departure (AOD) measurement result, RSRP, etc.

[0044] The terminal receives first positioning assistance data before transmitting positioning assistance data request information, and the first positioning assistance data is used for at least one PRS configuration set selected on demand, and a PRS configuration set among the at least one PRS configuration set is a PRS configuration set configured in advance by a network side device, and the at least one PRS configuration set includes a target PRS configuration set, and when the target PRS configuration set satisfies a first condition, the PRS request information selected on demand is Identifier information of the target PRS configuration set; Location information of the terminal; and configuration parameters.

[0045] The pre-configured PRS configuration set is configuration parameters, and pre-configured PRS configuration identification information; The maximum frequency tier that can be supported; The maximum number of TRPs that can be supported, Maximum supportable resource data; The maximum number of resource sets that can be supported; The maximum bandwidth that can be supported, The maximum number of iterations that can be supported, and Earliest PRS start time, The latest PRS start time, The PRS maximum duration may include at least one of:

[0046] Here, the first condition is: at least one configuration parameter in the target PRS configuration set includes a plurality of alternative values; At least one configuration parameter in the target PRS configuration set does not meet the preset needs of the terminal; and at least one configuration parameter in the target PRS configuration set is a default configuration parameter; At least one configuration parameter in the target PRS configuration set includes maximum configurable range information; and at least one configuration parameter in the target PRS configuration set includes the maximum possible value for that configuration parameter.

[0047] In the above, the configuration parameters are: Bandwidth information of a PRS corresponding to the identifier information of the target PRS configuration set; the start time of transmission of the PRS corresponding to the identifier information of the target PRS configuration set; The end time of transmission of the PRS corresponding to the identifier information of the target PRS configuration set; a duration of transmission of a PRS corresponding to the identifier information of the target PRS configuration set; Measurement window information for measuring the selected PRS on demand; Configuration window information for configuring the selected PRS on demand; A set of selected transmitting and receiving points (TRPs); The selected TRP number and Selected TRP identifier information; a selected set of positioning reference signal resources; a selected positioning reference signal resource; Identifier information of the selected positioning reference signal; The number of selected positioning reference signal resource sets; and The number of selected positioning reference signal resources; and and identifier information of the selected positioning reference signal resource set.

[0048] In the above, the selected transmitting / receiving point TRP set refers to the TRP set selected by the terminal, and similarly, the selected number of TRPs refers to the number of TRPs selected by the terminal. In one embodiment, the above "selected" may be understood to mean that the terminal has selected and selected on demand. In another embodiment, if the configuration parameters are included in the information transmitted by the terminal, for example, if the on-demand selected PRS request information includes the configuration parameters, the above "selected" may be understood to mean that the terminal has selected and selected on demand. If the configuration parameters are included in the information received by the terminal, for example, if the first positioning assistance data includes the configuration parameters, the above "selected" may be understood to mean that the network side device has selected and selected on demand.

[0049] In the above, if the target PRS configuration set does not satisfy the first condition, the PRS request information selected on-demand includes identifier information of the target PRS configuration set.

[0050] Optionally, the on-demand selected PRS request information comprises: indication information for indicating the selected PRS on demand; Support information for PRSs selected on demand by the terminal; Location information of the terminal; Expected departure angle information; Measurement information of a synchronization signal block (SSB) measured by the terminal; and measurement information of a Channel-state information Reference Signal (CSI-RS) measured by the terminal.

[0051] The expected departure angle information may include an expected value and / or expected range of departure angle, e.g., (φ AOD -Δφ AOD / 2, φ AOD +Δφ AOD / 2), and in another embodiment, it is the expected value or range of the angle of arrival, e.g. (φ AOA -Δφ AOA / 2, φ AOA +Δφ AOA / 2). ADO may be an azimuthal angle, a central angle, or a vertical angle.

[0052] In one case, when the terminal measures a positioning reference signal or reports the location information of the terminal before transmitting positioning assistance data request information, the on-demand selected PRS request information is Location information of the terminal; Expected departure angle information; and selected PRS support information selected on demand by the terminal.

[0053] Here, the PRS support information selected on demand is Bandwidth information of selected PRSs selected on demand; The start time of the transmission of the selected PRS selected on demand, The end time of the transmission of the selected PRS selected on demand; the duration of transmission of the selected PRS selected on demand; Measurement window information for measuring the selected PRS on demand; Configuration window information for configuring the selected PRS on demand; A set of selected transmitting and receiving points (TRPs); The selected TRP number and Selected TRP identifier information; a selected set of positioning reference signal resources; a selected positioning reference signal resource; Identifier information of the selected positioning reference signal; The number of selected positioning reference signal resource sets; and The number of selected positioning reference signal resources; and and identifier information of the selected positioning reference signal resource set.

[0054] The above-mentioned terminal location information includes terminal positioning location information, which includes, but is not limited to, absolute location information (e.g., longitude and latitude information), relative location information, etc., and the positioning method used is not specifically limited here.

[0055] In another embodiment, the location information of the terminal includes signal measurement information, which may include Reference Signal Time Difference (RSTD) measurement results, round-trip time (RTT) or Angle Of Arrival (AOA) measurement results, Angle Of Departure (AOD) measurement results, RSRP, etc.

[0056] In the above case, it may be understood that the terminal has previously performed measurements of positioning reference signals, and determines the selected PRS request information on demand based on the positioning signal measurement results and / or the terminal's location information, etc.

[0057] In another case, when the terminal does not acquire location information of the terminal or measure a positioning reference signal before transmitting positioning assistance data request information, the on-demand selected PRS request information is Location information of the terminal, for example, positioning information such as enhanced cell-identifier-based positioning technology (Enhanced Cell-ID, ECID) or global navigation satellite system (GNSS), and Measurement information of SSB measured by the terminal; Measurement information of CSI-RS measured by the terminal; and selected PRS support information selected on demand by the terminal.

[0058] In the above case, it may be understood that when the terminal does not measure a positioning reference signal, it determines the PRS request information selected on demand based on communication signal measurement results such as SSB, or it may be understood that the terminal determines the PRS request information selected on demand based on its previous radio access technology rat-independent positioning results.

[0059] In one embodiment of the present application, after the terminal sends positioning assistance data request information, the method includes: and receiving second positioning assistance data, the second positioning assistance data comprising: Configuration information for the target PRS, which is the PRS selected on demand and elected; and activation information of the target PRS.

[0060] The target PRS may be selected or configured by the network side device, and the target PRS is a PRS in the target PRS configuration set. It should be noted that the target PRS is at least one PRS or at least one set of PRSs (in such a case, the target PRS includes multiple PRSs). If the configuration information of the target PRS configures at least two PRS configurations or at least two sets of PRS configurations, the terminal may further require activation information of the target PRS to activate the configured PRS. In such a case, the second positioning assistance data may include the configuration information of the target PRS and the activation information of the target PRS, or the configuration information of the target PRS and the activation information of the target PRS may be transmitted in different information units. If the second positioning assistance data includes only the configuration information of the target PRS, the terminal also needs to obtain activation information of the target PRS. If the configuration information of the target PRS configures only one PRS configuration or one set of PRS configurations, the terminal does not need to activate the configured PRS.

[0061] The above target PRS is The resources of the target PRS in the same cell do not conflict with the resources of a first PRS, and the first PRS is another PRS located in the same cell as the target PRS; The resources of the target PRS of a first serving cell do not conflict with PRS resources of the first serving cell; and The resources of the target PRS of a first serving cell do not conflict with the PRS resources of a second serving cell, and the first serving cell is a serving cell different from the second serving cell; The resources of the target PRS of a non-serving cell do not conflict with the resources of the PRS of a serving cell; the target PRS resources of a first non-serving cell do not collide with PRS resources of a first non-serving cell; and At least one of the following is satisfied: the target PRS resources of a first non-serving cell do not collide with the PRS resources of a second non-serving cell; and the first non-serving cell is a different non-serving cell from the second non-serving cell.

[0062] The first PRS may include a PRS for on-demand selection (e.g., a pre-selected PRS for on-demand selection or a pre-configured PRS for on-demand selection) and / or other PRSs (e.g., a positioning reference signal in the prior art).

[0063] In the above, when the resource of the target PRS conflicts with the resource of the second PRS, the positioning method includes: The terminal receives the target PRS or the second PRS based on the priority of the target PRS and the priority of the second PRS; the terminal expects cancellation of transmission of the second PRS; receiving the target PRS and the second PRS at the terminal; and receiving indication information for indicating whether the terminal should transmit the second PRS.

[0064] Here, the second PRS is a PRS other than the target PRS.

[0065] For example, if the priority of the target PRS is greater than the priority of the second PRS, the target PRS is received, and if the priority of the target PRS is less than the priority of the second PRS, the second PRS is received.

[0066] The terminal receiving the target PRS and the second PRS may be understood as the terminal receiving the target PRS and the second PRS simultaneously, or the terminal receiving the target PRS and the second PRS, respectively. For example, the target PRS and the second PRS coexist, or the target PRS coincides with the second PRS on second PRS resources. The coexistence may be understood as the target PRS and the second PRS being able to transmit on the same resources, e.g., time domain resources, frequency domain resources, or spatial domain resources. In one embodiment, the target PRS and the second PRS are transmitted using a symbol division method. In another embodiment, the target PRS is multiplexed with the second PRS to generate the target PRS, i.e., on the resource of the second PRS, the signal corresponds to the second PRS, and the target PRS is transmitted on a resource other than the second PRS, and the target PRS is a PRS that has a specific relationship with the second PRS, for example, the target PRS corresponds to the sequence generation rule of the second PRS.

[0067] After the terminal transmits the selected PRS key request information on demand, the positioning method includes: The method further includes the terminal receiving second key information, wherein the second key information is used to analyze the support information of the target PRS, and the target PRS is a PRS selected and selected on demand, the target PRS may be selected by a network side device, and the target PRS is a PRS in a target PRS configuration set.

[0068] The second key information may be carried in the positioning assistance data transmitted by the network side device, such as the first positioning assistance data or the positioning assistance data received at another time, and the second key information may also be carried in an on-demand selected PRS key request response message transmitted by the network side device based on the terminal, such as a preset service response request message, a preset registration response message, or an LPP message. The encrypted key may also be carried in broadcast information.

[0069] The second key information includes validity information, and the validity information is Time information, such as duration information, valid start time information, valid end time information, etc. Area information, for example, a specific area, such as a cell range, a Timing Advance Group (TAG) range, a predicted angle range, a PRS resource coverage range, beam identifier information for transmitting a positioning reference signal, beam direction information for transmitting a positioning reference signal, etc. Event information, such as when an event occurs and the key expires, and spatial relationship information that is valid for a particular spatial relationship.

[0070] the second key information includes key information of at least one key; The at least one key is A static key; A dynamic key; A key selected on demand; At least two levels of keys are included, for example, at least one of a primary key and a secondary key.

[0071] The second key information includes key information of at least one key, and further includes: Validity identifier information; packet identifier information; scrambling code identifier information; Available broadcast type information; cell identifier information; TRP identifier information; beam identifier information for transmitting a positioning reference signal; beam direction information for transmitting a positioning reference signal; Positioning reference signal identifier information; and spatial relationship identifier information.

[0072] In one embodiment, if the encrypted keys include more than the key information of at least one key, they can be transmitted to the terminal in different ways, for example, some keys are in the positioning assistance data and some keys are in the positioning reference signal, or some keys are in the positioning assistance data and some keys are in the broadcast information, or some keys are in the registration request response message or the registration service request response message and some keys are in the broadcast information.

[0073] After obtaining the second key information, the terminal can include the second key information in positioning assistance data request information and transmit the same to the network side device.

[0074] The second key information may be transmitted to the terminal (unicast method) by the LMF, or the second key information may be transmitted to the base station by the LMF, and then the second key information may be transmitted by the base station by broadcast method.

[0075] The terminal may transmit on-demand selected PRS request information to the LMF, and information that may be included in the on-demand selected PRS request information may include: Identification of the target PRS configuration set; a physical cell identifier; and a global cell identifier; and TRP identifiers of candidate NR TRPs for measurement; SSB measurement information, CSI-RS measurement information; Expected departure angle information; and selected PRS support information selected on demand.

[0076] On-demand selected PRS support information is SSB Configuration for requested TRPs, and Desired Beam Direction, and DL-PRS Configuration Parameters; and Maximum Number of Frequency Layers, DL-PRS Positioning Frequency Layer Information; DL-PRS Subcarrier Spacing, DL-PRS Resource Bandwidth; DL-PRS PRB start point (DL-PRS Start PRB), DL-PRS frequency domain position point A (DL-PRS Point A), DL-PRS Comb Size N, DL-PRS Cyclic Prefix, and DL-PRS configuration per frequency layer (DL-PRS Configuration per Frequency Layer), a DL-PRS identifier (identifier or ID may be understood as identifier information); DL-PRS PCI and Absolute Radio Frequency Channel Number (ARFCN), and The 5G standard Cell Global Identifier (NR Cell Global Identity, NCGI) and Maximum Number of DL-PRS Resource Sets, and DL-PRS Resource Set Information; DL-PRS Resource Set ID; DL-PRS Periodicity and Resource Set Slot Offset, DL-PRS Resource Repetition Factor, DL-PRS Resource Time Gap; DL-PRS Number of Symbols, DL-PRS Muting Option 1 and DL-PRS Muting Option 2 and DL-PRS resource power information (DL-PRS Resource Power); The maximum number of DL-PRS resources in each DL-PRS resource set (Maximum Number of DL-PRS Resources per Set), and DL-PRS Resource Information; DL-PRS Resource ID; DL-PRS Sequence ID; DL-PRS RE Offset and DL-PRS Resource Slot Offset, and DL-PRS Resource Symbol Offset.

[0077] As shown in Table 1, if the corresponding parameter is "yes", the terminal or LMF can trigger a flow to select a PRS on demand.

[0078] [Table 1]

[0079] As shown in Table 2, if the corresponding parameter is "yes", the terminal or LMF can trigger a flow to select a PRS on demand.

[0080] [Table 2]

[0081] Referring to FIG. 3, FIG. 3 is a flowchart of a positioning method according to an embodiment of the present application. As shown in FIG. 3, the positioning method according to an embodiment of the present application includes:

[0082] Step 301: The network side device sends first positioning assistance data to the terminal, where the first positioning assistance data is used to indicate configuration information of a PRS for on-demand selection, and / or the network side device receives positioning assistance data request information sent by the terminal, where the positioning assistance data request information is used to indicate related request information of a PRS for on-demand selection.

[0083] The terminal in this application may be understood as a terminal that subscribes to an on-demand selected service, or as a terminal that supports an on-demand selected service. It may also be understood as a terminal that requests on-demand selection or a terminal that performs on-demand selected PRS measurement. In the above, the first positioning assistance data may be transmitted by a network side device, for example, a Location Management Function (LMF), an Access and Mobility Management Function (AMF), or a base station transmits the first positioning assistance data to the terminal. The first positioning assistance data is used to indicate configuration information of a PRS for on-demand selection, for example, the first positioning assistance data is a first key for analyzing the PRS selected on demand; at least one PRS configuration set for on-demand selection; PRS resource information for on-demand selection and and PRS response information for on-demand selection.

[0084] In the above, the first key information is used by the terminal to analyze the support information of the PRS selected on demand, and at least one PRS configuration set may include identifier information of the PRS configuration set.

[0085] In the above, the PRS selected on demand may be understood as one or more pre-configured PRSs, or as a changeable PRS (i.e., based on the pre-R17 protocol, the PRS is installed by the network or configured by the base station itself, and the UE and LMF do not affect the configuration), and the PRS for on-demand selection can be configured to be selected on demand according to the request of the UE and LMF.

[0086] In one embodiment, the PRS may be a positioning signal or a reference signal for positioning, and the positioning signal may include at least one of a DL PRS, a channel-state information reference signal (CSI-RS), a synchronization signal block (SSB), a tracking reference signal (TRS), and a sounding reference signal.

[0087] The positioning assistance data request information is On-demand selected positioning reference signal (PRS) request information; and a PRS key request information selected on demand.

[0088] Specifically, the on-demand selected PRS key request information is used to obtain key information and thereby analyze the support information of the on-demand selected PRS based on the first key information.

[0089] In this embodiment, the network side device transmits first positioning assistance data to the terminal, where the first positioning assistance data is used to indicate configuration information of a PRS for on-demand selection, and / or the network side device receives positioning assistance data request information transmitted by the terminal, where the positioning assistance data request information is used to indicate related request information of a PRS for on-demand selection. The network side device can select a PRS on-demand by transmitting the first positioning assistance data and / or receiving the positioning assistance data request information, and such a manner of dynamically determining a PRS can be adjusted according to actual conditions, improving the flexibility of PRS determination and the effective utilization rate of PRS.

[0090] The PRS selected on demand may be selected by the network side device or may be selected by the terminal.

[0091] The on-demand selected PRS key request information may be carried in positioning assistance data request information and transmitted together with the on-demand selected PRS request information, in which case the positioning assistance data request information carries the on-demand selected PRS key request information and the on-demand selected PRS request information, and the terminal can transmit this positioning assistance data request information to the LMF. The on-demand selected PRS key request information may also be transmitted together with the on-demand selected PRS request information, i.e., the on-demand selected PRS request information is carried in positioning assistance data request information and transmitted, and the on-demand selected PRS key request information is carried in a preset service request message, a preset registration request message, or an LPP message and transmitted.

[0092] The PRS resource information for on-demand selection is PRS time domain resources for on-demand selection by network side equipment; PRS frequency domain resources for on-demand selection of the network side device; The bandwidth of the PRS for on-demand selection of the network side device; the duration of the PRS for on-demand selection of the network side device; A period of the PRS for on-demand selection of the network side device; a time domain offset of a PRS for on-demand selection by the network side device; and The start time of the PRS for on-demand selection of the network side device; a symbol of a PRS for on-demand selection by the network side device; and the number of repetitions of the PRS for on-demand selection by the network side device.

[0093] Specifically, the resource information of the PRS for on-demand selection is: The maximum number of PRS positioning reference signal resources for on-demand selection by network side equipment; and The maximum number of PRS positioning reference signal resource sets for on-demand selection by the network side device; and The maximum number of TRPs of PRSs for on-demand selection by the network side device; and The maximum bandwidth of the PRS for on-demand selection of the network side device; the maximum duration of the PRS for on-demand selection of the network side device; A minimum period of the PRS for on-demand selection of the network side device; The maximum period of the PRS for on-demand selection of the network side device; the earliest time domain offset of a PRS for on-demand selection by the network side device; the earliest start time of a PRS for on-demand selection by the network side device; the maximum number of symbols of the PRS for on-demand selection by the network side device; and and the maximum number of repetitions of the PRS for on-demand selection by the network side device.

[0094] The response information of the PRS for on-demand selection includes: Error indication information; Error type information; No available resources information, Error cause information, A positive acknowledgement ACK information; Negative acknowledgement NACK information, Information that does not support on-demand selection of PRS and Identifier information of a target PRS configuration set, wherein the at least one PRS configuration set includes the target PRS configuration set; request success indication information or request failure indication information; Configuration success instruction information or configuration failure instruction information; and configuration information of the target PRS configuration set.

[0095] The at least one PRS configuration set includes a target PRS configuration set, and the positioning assistance data request information carries on-demand selected PRS request information. The on-demand selected PRS request information is Identifier information of the target PRS configuration set; Location information of the terminal; and configuration parameters.

[0096] wherein the configuration parameters are: Bandwidth information of a PRS corresponding to the identifier information of the target PRS configuration set; the start time of transmission of the PRS corresponding to the identifier information of the target PRS configuration set; The end time of transmission of the PRS corresponding to the identifier information of the target PRS configuration set; a duration of transmission of a PRS corresponding to the identifier information of the target PRS configuration set; Measurement window information for measuring the selected PRS on demand; Configuration window information for configuring the selected PRS on demand; A set of selected transmitting and receiving points (TRPs); The selected TRP number and Selected TRP identifier information; a selected set of positioning reference signal resources; a selected positioning reference signal resource; Identifier information of the selected positioning reference signal; The number of selected positioning reference signal resource sets; and The number of selected positioning reference signal resources; and and identifier information of the selected positioning reference signal resource set.

[0097] The on-demand selected PRS request information is indication information for indicating the selected PRS on demand; Support information for selected PRSs on demand, Location information of the terminal; Expected departure angle information; Measurement information of the synchronization signal block SSB measured by the terminal; and measurement information of a channel state information reference signal (CSI-RS) measured by the terminal.

[0098] Optionally, the positioning method comprises: The method further includes the network side device transmitting second positioning assistance data, wherein the second positioning assistance data comprises: Configuration information for the target PRS, which is the PRS selected on demand and elected; and activation information of the target PRS.

[0099] The target PRS may be selected or configured by the network side device, and the target PRS is a PRS in the target PRS configuration set. It should be noted that the target PRS is at least one PRS or at least one set of PRSs (in such a case, the target PRS includes multiple PRSs). If the configuration information of the target PRS configures at least two PRS configurations or at least two sets of PRS configurations, the terminal may further require activation information of the target PRS to activate the configured PRS. In such a case, the second positioning assistance data may include the configuration information of the target PRS and the activation information of the target PRS, or the configuration information of the target PRS and the activation information of the target PRS may be transmitted in different information units. If the second positioning assistance data includes only the configuration information of the target PRS, the terminal also needs to obtain activation information of the target PRS. If the configuration information of the target PRS configures only one PRS configuration or one set of PRS configurations, the terminal does not need to activate the configured PRS.

[0100] The above target PRS is The resources of the target PRS in the same cell do not conflict with the resources of a first PRS, and the first PRS is another PRS located in the same cell as the target PRS; The resources of the target PRS of a first serving cell do not conflict with PRS resources of the first serving cell; and The resources of the target PRS of a first serving cell do not conflict with the PRS resources of a second serving cell, and the first serving cell is a serving cell different from the second serving cell; The resources of the target PRS of a non-serving cell do not conflict with the resources of the PRS of a serving cell; the target PRS resources of a first non-serving cell do not collide with PRS resources of a first non-serving cell; and At least one of the following is satisfied: the target PRS resources of a first non-serving cell do not collide with the PRS resources of a second non-serving cell; and the first non-serving cell is a different non-serving cell from the second non-serving cell.

[0101] In the above, the second PRS is a PRS other than the target PRS, and when the resources of the target PRS conflict with the resources of the second PRS, the method includes: The network side device transmits the target PRS or the second PRS based on the priority of the target PRS and the priority of the second PRS; The network side device expects the cancellation of the transmission of the second PRS; The network side device transmits the target PRS and the second PRS; and transmitting indication information for instructing the network side device whether to transmit the second PRS.

[0102] Optionally, the positioning method comprises: The method further includes the network side device sending second key information, where the second key information is used to analyze the support information of the target PRS, and the target PRS is a PRS selected and selected on demand, the target PRS may be selected by the network side device, and the target PRS is a PRS in a target PRS configuration set.

[0103] The second key information may be carried in the positioning assistance data transmitted by the network side device, such as the first positioning assistance data or the positioning assistance data received at another time, and the second key information may also be carried in an on-demand selected PRS key request information response message transmitted by the network side device based on the terminal, or the second key information may also be carried in broadcast information.

[0104] The second key information includes validity information, and the validity information is Time information, such as duration information, valid start time information, valid end time information, etc. Area information, for example, beam identifier information for transmitting a positioning reference signal, beam direction information for transmitting a positioning reference signal, which is valid in a specific area, such as a cell range, a TAG range, a predicted angle range, a PRS resource coverage range, etc.; Event information, such as when an event occurs and the key expires, and spatial relationship information that is valid for a particular spatial relationship.

[0105] the second key information includes key information of at least one key; The at least one key is A static key; A dynamic key; A key selected on demand; At least two levels of keys are included, for example, at least one of a primary key and a secondary key.

[0106] The second key information includes key information of at least one key, and further includes: Validity identifier information; packet identifier information; scrambling code identifier information; Available broadcast type information; cell identifier information; TRP identifier information; beam identifier information for transmitting a positioning reference signal; beam direction information for transmitting a positioning reference signal; Positioning reference signal identifier information; and spatial relationship identifier information.

[0107] The second key information may be transmitted to the terminal (unicast method) by the LMF, or the second key information may be transmitted to the base station by the LMF, and then the second key information may be transmitted by the base station by broadcast method.

[0108] Figure 4a is a flowchart of a key information (i.e., second key information) acquisition process according to an embodiment of the present application. As shown in Figure 4a, after receiving on-demand selected PRS key request information sent by the terminal, the LMF acquires and stores encrypted key information, and then sends the encrypted key information to the terminal.

[0109] FIG. 4b is another flowchart of the key information (i.e., second key information) acquisition process according to an embodiment of the present application. As shown in FIG. 4b, the encrypted key information is sent by the base station to the terminal in a broadcast manner.

[0110] FIG. 4c is a flowchart of a positioning method according to an embodiment of the present application. As shown in FIG. 4c, step 431 may be performed before step 432 is performed, and step 431 may not be performed before step 432 is performed.

[0111] It should be mentioned that for the positioning method according to the embodiment of the present application, the execution body may be a positioning device or a control module for executing the positioning method in the positioning device.

[0112] In the following embodiments, the positioning device according to the embodiments of the present application will be described by taking the positioning device as an example to perform a positioning method.

[0113] Referring to FIG. 5, FIG. 5 is a structural diagram of a positioning device according to an embodiment of the present application, and the first positioning device 500 includes: a first receiving module 501 for receiving first positioning assistance data, wherein the first positioning assistance data is used to indicate configuration information of a PRS for on-demand selection; and / or and a first transmitting module 502 for transmitting positioning assistance data request information, the positioning assistance data request information being used to indicate related request information of a PRS for on-demand selection.

[0114] Optionally, the first positioning assistance data comprises: a first key for analyzing the PRS selected on demand; at least one PRS configuration set for on-demand selection; PRS resource information for on-demand selection and and PRS response information for on-demand selection.

[0115] Optionally, the resource information of the PRS for on-demand selection comprises: PRS time domain resources for on-demand selection by network side equipment; PRS frequency domain resources for on-demand selection of the network side device; The bandwidth of the PRS for on-demand selection of the network side device; the duration of the PRS for on-demand selection of the network side device; A period of the PRS for on-demand selection of the network side device; a time domain offset of a PRS for on-demand selection by the network side device; and The start time of the PRS for on-demand selection of the network side device; a symbol of a PRS for on-demand selection by the network side device; and the number of repetitions of the PRS for on-demand selection by the network side device.

[0116] Optionally, the resource information of the PRS for on-demand selection comprises: The maximum number of PRS positioning reference signal resources for on-demand selection by network side equipment; and The maximum number of PRS positioning reference signal resource sets for on-demand selection by the network side device; and The maximum number of TRPs of PRSs for on-demand selection by the network side device; and The maximum bandwidth of the PRS for on-demand selection of the network side device; the maximum duration of the PRS for on-demand selection of the network side device; A minimum period of the PRS for on-demand selection of the network side device; The maximum period of the PRS for on-demand selection of the network side device; the earliest time domain offset of a PRS for on-demand selection by the network side device; the earliest start time of a PRS for on-demand selection by the network side device; the maximum number of symbols of the PRS for on-demand selection by the network side device; and and the maximum number of repetitions of the PRS for on-demand selection by the network side device.

[0117] Optionally, the PRS response information for on-demand selection comprises: Error indication information; Error type information; No available resources information, Error cause information, A positive acknowledgement ACK information; Negative acknowledgement NACK information, Information that does not support on-demand selection of PRS and Identifier information of a target PRS configuration set, wherein the at least one PRS configuration set includes the target PRS configuration set; request success indication information or request failure indication information; Configuration success instruction information or configuration failure instruction information; and configuration information of the target PRS configuration set.

[0118] Optionally, the positioning assistance data request information comprises: On-demand selected positioning reference signal (PRS) request information; and a PRS key request information selected on demand.

[0119] Optionally, the device further includes a second transmitting module; Used to transmit on-demand selected PRS key request information, where the on-demand selected PRS key request information is carried in a pre-configured service request message, a pre-configured registration request message, or a Long Term Evolution Positioning Protocol message.

[0120] Alternatively, when the terminal is in a connected state, the preset service request message is a service request message that does not carry a protocol data unit (PDU); Or, When the terminal is in a connected state, the preset service request message is a service request message carrying on-demand selected PRS key request information; Or, When the terminal is in a disconnected state, the pre-configured service request message is sent by a signaling radio bearer SRB2 or a data radio bearer DRB.

[0121] Optionally, transmitting the on-demand selected PRS key request information comprises: a first pre-defined quality of service QoS condition; a measurement quality of the terminal positioning signal measurement is less than a first threshold; The positioning quality of the location information of the terminal positioning is less than a second threshold; The location information of the terminal positioning does not satisfy a second preset Qos condition; The terminal receives on-demand selected PRS measurement request information for instructing the terminal to measure on-demand selected PRSs or the first positioning assistance data; The measurement result of the terminal positioning signal measurement is smaller or larger than a third threshold; and the terminal has subscribed to a selected PRS service on demand.

[0122] Optionally, the at least one PRS configuration set includes a target PRS configuration set.

[0123] Optionally, the positioning assistance data request information carries PRS request information selected on demand; The on-demand selected PRS request information is Identifier information of the target PRS configuration set; Location information of the terminal; and configuration parameters.

[0124] Optionally, the positioning assistance data request information is transmitted if the target PRS configuration set satisfies a first condition; Here, the first condition is: at least one configuration parameter in the target PRS configuration set includes a plurality of alternative values; At least one configuration parameter in the target PRS configuration set does not meet the preset needs of the terminal; and at least one configuration parameter in the target PRS configuration set is a default configuration parameter; At least one configuration parameter in the target PRS configuration set includes maximum configurable range information; and at least one configuration parameter in the target PRS configuration set includes the maximum possible value for that configuration parameter.

[0125] Optionally, the configuration parameters are: Bandwidth information of a PRS corresponding to the identifier information of the target PRS configuration set; the start time of transmission of the PRS corresponding to the identifier information of the target PRS configuration set; The end time of transmission of the PRS corresponding to the identifier information of the target PRS configuration set; a duration of transmission of a PRS corresponding to the identifier information of the target PRS configuration set; Measurement window information for measuring the selected PRS on demand; Configuration window information for configuring the selected PRS on demand; A set of selected transmitting and receiving points (TRPs); The selected TRP number and Selected TRP identifier information; a selected set of positioning reference signal resources; a selected positioning reference signal resource; Identifier information of the selected positioning reference signal; The number of selected positioning reference signal resource sets; and The number of selected positioning reference signal resources; and and identifier information of the selected positioning reference signal resource set.

[0126] Optionally, the on-demand selected PRS request information comprises: indication information for indicating the selected PRS on demand; Support information for selected PRSs on demand, Location information of the terminal; Expected departure angle information; Measurement information of the synchronization signal block SSB measured by the terminal; and measurement information of the CSI-RS measured by the terminal.

[0127] Optionally, the device further includes a second receiving module; and receiving second positioning assistance data, the second positioning assistance data comprising: Configuration information for the target PRS, which is the PRS selected on demand and elected; and activation information of the target PRS.

[0128] Optionally, the target PRS comprises: The resources of the target PRS in the same cell do not conflict with the resources of a first PRS, and the first PRS is another PRS located in the same cell as the target PRS; The resources of the target PRS of a first serving cell do not conflict with PRS resources of the first serving cell; and The resources of the target PRS of a first serving cell do not conflict with the PRS resources of a second serving cell, and the first serving cell is a serving cell different from the second serving cell; The resources of the target PRS of a non-serving cell do not conflict with the resources of the PRS of a serving cell; the target PRS resources of a first non-serving cell do not collide with PRS resources of a first non-serving cell; and At least one of the following is satisfied: the target PRS resources of a first non-serving cell do not collide with the PRS resources of a second non-serving cell; and the first non-serving cell is a different non-serving cell from the second non-serving cell.

[0129] Optionally, the second PRS is a PRS other than the target PRS, and when resources of the target PRS conflict with resources of the second PRS, the device: a third receiving module for receiving the target PRS or the second PRS based on a priority of the target PRS and a priority of the second PRS; a configuration module for expecting cancellation of transmission of the second PRS; a fourth receiving module for receiving the target PRS and the second PRS; and a fifth receiving module for receiving instruction information for instructing whether to transmit the second PRS.

[0130] Optionally, the device further includes a sixth receiving module; The second key information is used to receive second key information, and the second key information is used to analyze the support information of the target PRS, and the target PRS is a selected PRS that is selected on demand.

[0131] Optionally, the second key information includes validity information, the validity information being Time information and Area information; Event information and and spatial relationship information.

[0132] Optionally, the second key information includes key information of at least one key; The at least one key is A static key; A dynamic key; A key selected on demand; At least one of at least two levels of keys.

[0133] Optionally, the second key information is Validity identifier information; packet identifier information; scrambling code identifier information; Available broadcast type information; cell identifier information; TRP identifier information; beam identifier information for transmitting a positioning reference signal; beam direction information for transmitting a positioning reference signal; Positioning reference signal identifier information; and spatial relationship identifier information.

[0134] The first positioning device 500 in the embodiment of the present application may be a device, or may be a component, an integrated circuit, or a chip in a terminal.

[0135] The first positioning device 500 in the embodiment of the present application may be a device having an operating system, which may be an Android operating system, an iOS operating system, or other possible operating systems, and the embodiment of the present application is not specifically limited.

[0136] The first positioning device 500 according to the embodiment of the present application can realize each process realized by the embodiment of the method of FIG. 2 and achieve the same technical effect, and will not be further described here to avoid repetition of description.

[0137] Referring to FIG. 6, FIG. 6 is a structural diagram of a positioning device according to an embodiment of the present application, and the second positioning device 600 includes: a second transmitting module 601 for transmitting first positioning assistance data to a terminal, wherein the first positioning assistance data is used to indicate configuration information of a PRS for on-demand selection; and / or and a second receiving module 602 for receiving positioning assistance data request information transmitted by the terminal, the positioning assistance data request information being used to indicate related request information of a PRS for on-demand selection.

[0138] Optionally, the first positioning assistance data comprises: a first key for analyzing the PRS selected on demand; at least one PRS configuration set for on-demand selection; PRS resource information for on-demand selection and and PRS response information for on-demand selection.

[0139] Optionally, the resource information of the PRS for on-demand selection comprises: PRS time domain resources for on-demand selection by network side equipment; PRS frequency domain resources for on-demand selection of the network side device; The bandwidth of the PRS for on-demand selection of the network side device; the duration of the PRS for on-demand selection of the network side device; A period of the PRS for on-demand selection of the network side device; a time domain offset of a PRS for on-demand selection by the network side device; and The start time of the PRS for on-demand selection of the network side device; a symbol of a PRS for on-demand selection by the network side device; and the number of repetitions of the PRS for on-demand selection by the network side device.

[0140] Optionally, the resource information of the PRS for on-demand selection comprises: The maximum number of PRS positioning reference signal resources for on-demand selection by the network side device; and The maximum number of PRS positioning reference signal resource sets for on-demand selection by the network side device; and The maximum number of TRPs of PRSs for on-demand selection by the network side device; and The maximum bandwidth of the PRS for on-demand selection of the network side device; the maximum duration of the PRS for on-demand selection of the network side device; A minimum period of the PRS for on-demand selection of the network side device; The maximum period of the PRS for on-demand selection of the network side device; the earliest time domain offset of a PRS for on-demand selection by the network side device; the earliest start time of a PRS for on-demand selection by the network side device; the maximum number of symbols of the PRS for on-demand selection by the network side device; and and the maximum number of repetitions of the PRS for on-demand selection by the network side device.

[0141] Optionally, the PRS response information for on-demand selection comprises: Error indication information; Error type information; No available resources information, Error cause information, A positive acknowledgement ACK information; Negative acknowledgement NACK information, Information that does not support on-demand selection of PRS and Identifier information of a target PRS configuration set, wherein the at least one PRS configuration set includes the target PRS configuration set; request success indication information or request failure indication information; Configuration success instruction information or configuration failure instruction information; and configuration information of the target PRS configuration set.

[0142] Optionally, the positioning assistance data request information comprises: On-demand selected positioning reference signal (PRS) request information; and a PRS key request information selected on demand.

[0143] Optionally, the device further includes a third receiving module; Used to receive on-demand selected PRS key request information, where the on-demand selected PRS key request information is carried in a pre-configured service request message, a pre-configured registration request message, or a Long Term Evolution Positioning Protocol message.

[0144] Optionally, the at least one PRS configuration set includes a target PRS configuration set.

[0145] Optionally, the positioning assistance data request information carries PRS request information selected on demand; The on-demand selected PRS request information is Identifier information of the target PRS configuration set; Location information of the terminal; and configuration parameters.

[0146] Optionally, the configuration parameters are: Bandwidth information of a PRS corresponding to the identifier information of the target PRS configuration set; the start time of transmission of the PRS corresponding to the identifier information of the target PRS configuration set; The end time of transmission of the PRS corresponding to the identifier information of the target PRS configuration set; a duration of transmission of a PRS corresponding to the identifier information of the target PRS configuration set; Measurement window information for measuring the selected PRS on demand; Configuration window information for configuring the selected PRS on demand; A set of selected transmitting and receiving points (TRPs); The selected TRP number and Selected TRP identifier information; a selected set of positioning reference signal resources; a selected positioning reference signal resource; Identifier information of the selected positioning reference signal; The number of selected positioning reference signal resource sets; and The number of selected positioning reference signal resources; and and identifier information of the selected positioning reference signal resource set.

[0147] Optionally, the on-demand selected PRS request information comprises: indication information for indicating the selected PRS on demand; Support information for selected PRSs on demand, Location information of the terminal; Expected departure angle information; Measurement information of the synchronization signal block SSB measured by the terminal; and measurement information of the CSI-RS measured by the terminal.

[0148] Optionally, the device further includes a third transmitting module; and transmitting second positioning assistance data, the second positioning assistance data comprising: Configuration information for the target PRS, which is the PRS selected on demand and elected; and activation information of the target PRS.

[0149] Optionally, the target PRS comprises: The resources of the target PRS in the same cell do not conflict with the resources of a first PRS, and the first PRS is another PRS located in the same cell as the target PRS; The resources of the target PRS of a first serving cell do not conflict with PRS resources of the first serving cell; and The resources of the target PRS of a first serving cell do not conflict with the PRS resources of a second serving cell, and the first serving cell is a serving cell different from the second serving cell; The resources of the target PRS of a non-serving cell do not conflict with the resources of the PRS of a serving cell; the target PRS resources of a first non-serving cell do not collide with PRS resources of a first non-serving cell; and At least one of the following is satisfied: the target PRS resources of a first non-serving cell do not collide with the PRS resources of a second non-serving cell; and the first non-serving cell is a different non-serving cell from the second non-serving cell.

[0150] Optionally, the second PRS is a PRS other than the target PRS, and if resources of the target PRS conflict with resources of the second PRS, the method further comprises: The network side device transmits the target PRS or the second PRS based on the priority of the target PRS and the priority of the second PRS; The network side device expects the cancellation of the transmission of the second PRS; The network side device transmits the target PRS and the second PRS; and transmitting indication information for instructing the network side device whether to transmit the second PRS.

[0151] Optionally, the device further includes a fourth transmitting module; It is used to transmit second key information, and the second key information is used to analyze the assistance information of the target PRS, and the target PRS is a selected PRS that is selected on demand.

[0152] Optionally, the second key information includes validity information, the validity information being Time information and Area information; Event information and and spatial relationship information.

[0153] Optionally, the second key information includes key information of at least one key; The at least one key is A static key; A dynamic key; A key selected on demand; At least one of at least two levels of keys.

[0154] Optionally, the second key information is Validity identifier information; packet identifier information; scrambling code identifier information; Available broadcast type information; cell identifier information; TRP identifier information; beam identifier information for transmitting a positioning reference signal; beam direction information for transmitting a positioning reference signal; Positioning reference signal identifier information; and spatial relationship identifier information.

[0155] The second positioning device 600 according to the embodiment of the present application can realize each process realized by the embodiment of the method of FIG. 3 and achieve the same technical effect, and will not be further described here to avoid repetition of description.

[0156] Optionally, as shown in Figure 7, an embodiment of the present application further provides a communication device 70, including a processor 71, a memory 72, and a program or instruction stored in the memory 72 and operable on the processor 71. For example, if the communication device 70 is a terminal, when the program or instruction is executed by the processor 71, it can realize each process of the embodiment of the positioning method shown in Figure 2 above, and achieve the same technical effect. If the communication device 70 is a network-side device, when the program or instruction is executed by the processor 71, it can realize each process of the embodiment of the positioning method shown in Figure 3 above, and achieve the same technical effect.

[0157] FIG. 8 is a schematic diagram of the hardware structure of the terminal of the embodiment of the present application.

[0158] The terminal 1000 includes components such as, but not limited to, a radio frequency unit 1001, a network module 1002, an audio output unit 1003, an input unit 1004, a sensor 1005, a display unit 1006, a user input unit 1007, an interface unit 1008, a memory 1009, and a processor 1010.

[0159] As will be understood by those skilled in the art, the terminal 1000 may further include a power source (e.g., a battery) for powering each component, and the power source may be logically connected to the processor 1010 by a power management system, thereby enabling the power management system to realize functions such as charge / discharge management and power consumption management. The terminal structure shown in FIG. 8 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than those shown, or a combination of some components, or a different arrangement of components, which will not be further described here.

[0160] It should be understood that in the embodiment of the present application, the input unit 1004 may include a graphics processing unit (GPU) 10041 and a microphone 10042, and the graphics processor 10041 processes image data of still or video images captured by an image capture device (e.g., a camera) in a video capture mode or an image capture mode. The display unit 1006 may include a display panel 10061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 1007 includes a touch panel 10071 and other input devices 10072. The touch panel 10071 is also called a touch screen. The touch panel 10071 may include two parts: a touch detection device and a touch controller. The other input devices 10072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control buttons, switch buttons, etc.), a trackball, a mouse, and a control lever, which will not be further described herein.

[0161] In the embodiment of the present application, the radio frequency unit 1001 receives downlink data from the network side device, then processes the data in the processor 1010, and transmits uplink data to the base station. Generally, the radio frequency unit 1001 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc.

[0162] The memory 1009 may be used to store software programs or instructions and various data. The memory 1009 may primarily include a program or instruction storage area and a data storage area, where the program or instruction storage area can store an operating system, an application program or instructions required for at least one function (e.g., audio playback function, image playback function, etc.), etc. The memory 1009 may include high-speed random access memory or nonvolatile memory, where the nonvolatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. For example, the memory 1009 may be at least one magnetic disk memory device, flash memory device, or other nonvolatile solid-state memory device.

[0163] The processor 1010 may include one or more processing units. Optionally, the processor 1010 may integrate an application processor and a modem processor. Here, the application processor mainly processes an operating system, a user interface, and application programs or instructions, and the modem processor mainly processes wireless communications, such as a baseband processor. As can be appreciated, the modem processor does not have to be integrated into the processor 1010.

[0164] wherein the radio frequency unit 1001 is used to receive first positioning assistance data, the first positioning assistance data being used to indicate configuration information of a PRS for on-demand selection; and / or Transmitting positioning assistance data request information, said positioning assistance data request information being used to indicate relevant request information of a PRS for on-demand selection.

[0165] Optionally, the first positioning assistance data comprises: a first key for analyzing the PRS selected on demand; at least one PRS configuration set for on-demand selection; PRS resource information for on-demand selection and and PRS response information for on-demand selection.

[0166] Optionally, the resource information of the PRS for on-demand selection comprises: PRS time domain resources for on-demand selection by network side equipment; PRS frequency domain resources for on-demand selection of the network side device; The bandwidth of the PRS for on-demand selection of the network side device; the duration of the PRS for on-demand selection of the network side device; A period of the PRS for on-demand selection of the network side device; a time domain offset of a PRS for on-demand selection by the network side device; and The start time of the PRS for on-demand selection of the network side device; a symbol of a PRS for on-demand selection by the network side device; and the number of repetitions of the PRS for on-demand selection by the network side device.

[0167] Optionally, the resource information of the PRS for on-demand selection comprises: The maximum number of PRS positioning reference signal resources for on-demand selection by network side equipment; and The maximum number of PRS positioning reference signal resource sets for on-demand selection by the network side device; and The maximum number of TRPs of PRSs for on-demand selection by the network side device; and The maximum bandwidth of the PRS for on-demand selection of the network side device; the maximum duration of the PRS for on-demand selection of the network side device; A minimum period of the PRS for on-demand selection of the network side device; The maximum period of the PRS for on-demand selection of the network side device; the earliest time domain offset of a PRS for on-demand selection by the network side device; the earliest start time of a PRS for on-demand selection by the network side device; the maximum number of symbols of the PRS for on-demand selection by the network side device; and and the maximum number of repetitions of the PRS for on-demand selection by the network side device.

[0168] Optionally, the PRS response information for on-demand selection comprises: Error indication information; Error type information; No available resources information, Error cause information, A positive acknowledgement ACK information; Negative acknowledgement NACK information, Information that does not support on-demand selection of PRS and Identifier information of a target PRS configuration set, wherein the at least one PRS configuration set includes the target PRS configuration set; request success indication information or request failure indication information; Configuration success instruction information or configuration failure instruction information; and configuration information of the target PRS configuration set.

[0169] Optionally, the positioning assistance data request information comprises: On-demand selected positioning reference signal (PRS) request information; and a PRS key request information selected on demand.

[0170] Optionally, the radio frequency unit 1001 further comprises: Used to transmit on-demand selected PRS key request information, where the on-demand selected PRS key request information is carried in a pre-configured service request message, a pre-configured registration request message, or a Long Term Evolution Positioning Protocol message.

[0171] Alternatively, when the terminal is in a connected state, the preset service request message is a service request message that does not carry a protocol data unit (PDU); Or, When the terminal is in a connected state, the preset service request message is a service request message carrying on-demand selected PRS key request information; Or, When the terminal is in a disconnected state, the pre-configured service request message is sent by a signaling radio bearer SRB2 or a data radio bearer DRB.

[0172] Optionally, transmitting the on-demand selected PRS key request information comprises: a first pre-defined quality of service QoS condition; a measurement quality of the terminal positioning signal measurement is less than a first threshold; The positioning quality of the location information of the terminal positioning is less than a second threshold; The location information of the terminal positioning does not satisfy a second preset Qos condition; The terminal receives on-demand selected PRS measurement request information for instructing the terminal to measure on-demand selected PRSs or the first positioning assistance data; The measurement result of the terminal positioning signal measurement is smaller or larger than a third threshold; and the terminal has subscribed to a selected PRS service on demand.

[0173] Optionally, the at least one PRS configuration set includes a target PRS configuration set.

[0174] Optionally, the positioning assistance data request information carries PRS request information selected on demand; The on-demand selected PRS request information is Identifier information of the target PRS configuration set; Location information of the terminal; and configuration parameters.

[0175] Optionally, the positioning assistance data request information is transmitted if the target PRS configuration set satisfies a first condition; Here, the first condition is: at least one configuration parameter in the target PRS configuration set includes a plurality of alternative values; At least one configuration parameter in the target PRS configuration set does not meet the preset needs of the terminal; and at least one configuration parameter in the target PRS configuration set is a default configuration parameter; At least one configuration parameter in the target PRS configuration set includes maximum configurable range information; and at least one configuration parameter in the target PRS configuration set includes the maximum possible value for that configuration parameter.

[0176] Optionally, the configuration parameters are: Bandwidth information of a PRS corresponding to the identifier information of the target PRS configuration set; the start time of transmission of the PRS corresponding to the identifier information of the target PRS configuration set; The end time of transmission of the PRS corresponding to the identifier information of the target PRS configuration set; a duration of transmission of a PRS corresponding to the identifier information of the target PRS configuration set; Measurement window information for measuring the selected PRS on demand; Configuration window information for configuring the selected PRS on demand; A set of selected transmitting and receiving points (TRPs); The selected TRP number and Selected TRP identifier information; a selected set of positioning reference signal resources; a selected positioning reference signal resource; Identifier information of the selected positioning reference signal; The number of selected positioning reference signal resource sets; and The number of selected positioning reference signal resources; and and identifier information of the selected positioning reference signal resource set.

[0177] Optionally, the on-demand selected PRS request information comprises: indication information for indicating the selected PRS on demand; Support information for selected PRSs on demand, Location information of the terminal; Expected departure angle information; Measurement information of the synchronization signal block SSB measured by the terminal; and measurement information of the CSI-RS measured by the terminal.

[0178] Optionally, the radio frequency unit 1001 is further adapted to receive second positioning assistance data, said second positioning assistance data being Configuration information for the target PRS, which is the PRS selected on demand and elected; and activation information of the target PRS.

[0179] Optionally, the target PRS comprises: The resources of the target PRS in the same cell do not conflict with the resources of a first PRS, and the first PRS is another PRS located in the same cell as the target PRS; The resources of the target PRS of a first serving cell do not conflict with PRS resources of the first serving cell; and The resources of the target PRS of a first serving cell do not conflict with the PRS resources of a second serving cell, and the first serving cell is a serving cell different from the second serving cell; The resources of the target PRS of a non-serving cell do not conflict with the resources of the PRS of a serving cell; the target PRS resources of a first non-serving cell do not collide with PRS resources of a first non-serving cell; and At least one of the following is satisfied: the target PRS resources of a first non-serving cell do not collide with the PRS resources of a second non-serving cell; and the first non-serving cell is a different non-serving cell from the second non-serving cell.

[0180] Optionally, the second PRS is a PRS other than the target PRS, and if resources of the target PRS conflict with resources of the second PRS, the method further comprises: The terminal receives the target PRS or the second PRS based on the priority of the target PRS and the priority of the second PRS; the terminal expects cancellation of transmission of the second PRS; receiving the target PRS and the second PRS at the terminal; and receiving indication information for indicating whether the terminal should transmit the second PRS.

[0181] Optionally, the radio frequency unit 1001 is further used to receive second key information, which is used to analyze the assistance information of a target PRS, and the target PRS is a selected PRS that is selected on demand.

[0182] Optionally, the second key information includes validity information, the validity information being Time information and Area information; Event information and and spatial relationship information.

[0183] Optionally, the second key information includes key information of at least one key; The at least one key is A static key; A dynamic key; A key selected on demand; At least one of at least two levels of keys.

[0184] Optionally, the second key information is Validity identifier information; packet identifier information; scrambling code identifier information; Available broadcast type information; cell identifier information; TRP identifier information; beam identifier information for transmitting a positioning reference signal; beam direction information for transmitting a positioning reference signal; Positioning reference signal identifier information; and spatial relationship identifier information.

[0185] The terminal 1000 according to the above embodiment can implement each process implemented by the method embodiment of FIG. 2 and achieve the same technical effect, and will not be further described here to avoid repetition.

[0186] Specifically, an embodiment of the present application further provides a network side device. As shown in Fig. 9, the network side device 900 includes an antenna 91, a radio frequency device 92, and a baseband device 93. The antenna 91 and the radio frequency device 92 are connected to each other. In the uplink direction, the radio frequency device 92 receives information through the antenna 91 and transmits the received information to the baseband device 93 for processing. In the downlink direction, the baseband device 93 processes the information to be transmitted and transmits it to the radio frequency device 92, and the radio frequency device 92 processes the received information and then transmits it through the antenna 91.

[0187] The above frequency band processing device may be located in a baseband device 93, and the method performed by the network side equipment in the above embodiments may be implemented in the baseband device 93, which includes a processor 94 and a memory 95.

[0188] The baseband device 93 may include, for example, at least one baseband board, on which multiple chips are installed, and as shown in FIG. 9, one of the chips is, for example, a processor 94, which is connected to a memory 95, and calls the program in the memory 95 to perform the network side equipment operations shown in the above method embodiments.

[0189] The baseband device 93 may further include a network interface 96, which is used to exchange information with the radio frequency device 92, and this interface may be, for example, a common public radio interface (abbreviated as CPRI).

[0190] Specifically, the network side device of the embodiment of the present invention further includes instructions or programs stored in memory 95 and operable on processor 94, and processor 94 can call the instructions or programs in memory 95 to execute the methods performed by each module shown in FIG. 7 and achieve the same technical effects, which will not be further described here to avoid repetition.

[0191] The embodiments of the present application further provide a readable storage medium, on which a program or instruction is stored, which, when executed by a processor, can realize each process of the method embodiments shown in Figure 2 or Figure 3 and achieve the same technical effects. In order to avoid repetition, no further description will be given here.

[0192] The processor may be the processor in the terminal or the network side device described in the above embodiments. The readable storage medium may include a computer readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0193] The embodiments of the present application further provide a chip, the chip including a processor and a communication interface, the communication interface being coupled to the processor, the processor running a program or instruction of the network side device, and used to realize each process of the method embodiments of Figure 2 or Figure 3, and can achieve the same technical effects. In order to avoid repetition, no further description will be given here.

[0194] It should be understood that the chips referred to in the embodiments of this application may be referred to as system level chips, system chips, chip systems, or system-on-chips.

[0195] An embodiment of the present application further provides a computer program product, wherein the computer program product is stored in a readable storage medium, and the computer program product can be executed by at least one process to realize each process of the method embodiment of Figure 2 or Figure 3 above, and achieve the same technical effect. In order to avoid repetition, no further description will be given here.

[0196] It should be noted that, in this specification, the terms "comprise," "include," "includes," or any other variations thereof are intended to cover the non-exclusive "comprise," whereby a process, method, article, or apparatus comprising a set of elements not only includes those elements, but also other elements not expressly listed or inherent in such process, method, article, or apparatus. Absent further limitations, an element defined by the phrase "comprises one of" does not preclude the presence of other identical elements in the process, method, article, or apparatus comprising that element. It should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may include performing functions in an essentially simultaneous manner or in the reverse order based on the functions involved. For example, the described method may be performed in a different order than described, and various steps may be added, omitted, or combined. Furthermore, features described with reference to some examples may be combined in other examples.

[0197] As will be apparent to those skilled in the art from the above description of the embodiments, the methods of the above embodiments can be realized in the form of software and a necessary general-purpose hardware platform. Of course, they can also be realized in hardware, but in many cases the former is a more preferred embodiment. Based on this understanding, the technical proposal of the present application may be substantially embodied in the form of a software product, or a portion that contributes to the prior art. This computer software product is stored in a storage medium (e.g., ROM / RAM, magnetic disk, optical disk) and includes a number of instructions for causing a terminal (which may be a mobile phone, computer, server, air conditioner, or network) to execute the methods described in each embodiment of the present application.

[0198] Although the embodiments of the present application have been described above in conjunction with the drawings, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not limiting. Those skilled in the art can take the teachings of the present application into account and implement many forms without departing from the spirit and scope of the claims, all of which fall within the scope of protection of the present application.

Claims

1. A positioning method comprising: receiving, by a terminal, first positioning assistance data from a network side device, the first positioning assistance data being used to indicate configuration information of a positioning reference signal (PRS) for on-demand selection; and / or the terminal sending positioning assistance data request information to the network side device, wherein the positioning assistance data request information is used to indicate related request information of a PRS for on-demand selection; the first positioning assistance data includes resource information of PRSs for on-demand selection; The resource information of the PRS for on-demand selection includes: A bandwidth of the PRS for on-demand selection of the network side device; A period of the PRS for on-demand selection of the network side device; A PRS symbol for on-demand selection of the network side device; and the number of repetitions of the PRS for on-demand selection by the network side device, The positioning method further includes: A positioning method, comprising: the terminal receiving a target PRS and a second PRS from the network side device, wherein the target PRS and the second PRS are transmitted in the same time domain resource.

2. The first positioning assistance data further comprises: First key information for analyzing the PRS selected on demand; At least one PRS configuration set for on-demand selection; and PRS response information for on-demand selection.

3. The resource information of the PRS for on-demand selection further includes: PRS time domain resources for on-demand selection by the network side device; PRS frequency domain resources for on-demand selection by the network side device; The duration of the PRS for on-demand selection of the network side device; a time domain offset of a PRS for on-demand selection by the network side device; and The method of claim 2 , wherein the network side device selects a PRS based on the PRS start time.

4. The resource information of the PRS for on-demand selection further includes: the maximum number of PRS positioning reference signal resources for on-demand selection by the network side device; and a maximum number of PRS resource sets for on-demand selection by the network side device; and The maximum number of TRPs of PRSs for on-demand selection by the network side device; and a maximum bandwidth of the PRS for on-demand selection of the network side device; The maximum duration of a PRS for on-demand selection by the network side device; A minimum period of PRS for on-demand selection by the network side device; a maximum period of PRS for on-demand selection by the network side device; an earliest time domain offset of a PRS for on-demand selection by the network side device; and the earliest start time of a PRS for on-demand selection of the network side device; The maximum number of PRS symbols for on-demand selection by the network side device; and and a maximum number of repetitions of the PRS for on-demand selection by the network side device.

5. The response information of the PRS for on-demand selection is Error indication information; Error type information; No available resources information, Error cause information, Positive acknowledgement ACK information; Negative acknowledgement (NACK) information; Information that does not support on-demand selection of PRS; Identifier information of a target PRS configuration set, wherein the at least one PRS configuration set includes the target PRS configuration set; request success indication information or request failure indication information; Configuration success instruction information or configuration failure instruction information; and configuration information of the target PRS configuration set.

6. The positioning assistance data request information is On-demand selected positioning reference signal (PRS) request information; 10. The method of claim 1, further comprising: conveying at least one of: a PRS key request information selected on demand;

7. The method of claim 2 , wherein the at least one PRS configuration set includes a target PRS configuration set.

8. the positioning assistance data request information carries on-demand selected PRS request information; The on-demand selected PRS request information is Identifier information of the target PRS configuration set; Location information of the terminal; The method of claim 1 , further comprising at least one of: a.

9. A positioning method comprising: a network side device transmitting first positioning assistance data to a terminal, the first positioning assistance data being used to indicate configuration information of a positioning reference signal (PRS) for on-demand selection; and / or the network side device receiving positioning assistance data request information sent by the terminal, wherein the positioning assistance data request information is used to indicate related request information of a PRS for on-demand selection; the first positioning assistance data includes resource information of PRSs for on-demand selection; The resource information of the PRS for on-demand selection includes: A bandwidth of the PRS for on-demand selection of the network side device; A period of the PRS for on-demand selection of the network side device; A PRS symbol for on-demand selection of the network side device; and the number of repetitions of the PRS for on-demand selection by the network side device, The positioning method further includes: A positioning method, comprising: the network side device transmitting a target PRS and a second PRS to the terminal, wherein the target PRS and the second PRS are transmitted in the same time domain resource.

10. The first positioning assistance data further comprises: First key information for analyzing the PRS selected on demand; At least one PRS configuration set for on-demand selection; and PRS response information for on-demand selection.

11. The resource information of the PRS for on-demand selection further includes: PRS time domain resources for on-demand selection by the network side device; PRS frequency domain resources for on-demand selection by the network side device; The duration of the PRS for on-demand selection of the network side device; a time domain offset of a PRS for on-demand selection by the network side device; and The method of claim 10 , wherein the network side device selects a PRS based on the received PRS.

12. The response information of the PRS for on-demand selection is Error indication information; Error type information; No available resources information, Error cause information, Positive acknowledgement ACK information; Negative acknowledgement (NACK) information; Information that does not support on-demand selection of PRS; Identifier information of a target PRS configuration set, wherein the at least one PRS configuration set includes the target PRS configuration set; request success indication information or request failure indication information; Configuration success instruction information or configuration failure instruction information; and configuration information of the target PRS configuration set.

13. the positioning assistance data request information carries on-demand selected PRS request information; The on-demand selected PRS request information is Identifier information of the target PRS configuration set; Location information of the terminal; 10. The method of claim 9, wherein the at least one of the following is a configuration parameter:

14. A terminal comprising a processor, a memory, and a program or instructions stored in said memory and operable to run on said processor, said program or instructions, when executed by said processor, implementing the steps of the positioning method according to any one of claims 1 to 8.

15. A network side device comprising a processor, a memory, and a program or instructions stored in the memory and operable on the processor, the program or instructions implementing the steps of the positioning method according to any one of claims 9 to 13 when executed by the processor.

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