CN116939699A - Data transmission method, data receiving method, data transmission device, data receiving equipment and storage medium - Google Patents

Abstract

The application provides a data sending method, a data receiving method, a data sending device, a data receiving device and a storage medium; the data transmission method comprises the following steps: determining the regional characteristics of a positioning service region; selecting a target transmission mode matched with the regional characteristics from candidate transmission modes of the positioning auxiliary data; transmitting the positioning auxiliary data to a terminal by adopting the target transmission mode; therefore, the network resource consumption is reduced on the premise of ensuring the precision of high-precision positioning.

Description

Data transmission method and data reception method, device, equipment, storage medium

Technical field

This application relates to communication technology, including but not limited to data sending methods and data receiving methods, devices, equipment, and storage media.

Background technique

There are many user equipment (UE) positioning methods supported by the 3rd Generation Partnership Project (3GPP), including positioning technologies based on non-cellular network signals, such as using the Global Positioning System (Global Positioning) System, GPS) and BeiDou Navigation Satellite System (BDS) and other non-radio access technology (Radio Access Technology, RAT) positioning technology; and positioning technology based on wireless cellular network reference signals, such as based on 5G new air interface ( NewRadio, NR) uplink sounding reference signal (Sounding Reference Signal, SRS) and downlink positioning reference signal (Positioning Reference Signal, PRS) RAT positioning technology. The process of determining the geographical location of the UE may be a fusion of one or more positioning technologies to adapt to various positioning scenarios and meet positioning accuracy requirements to the greatest extent.

In the UE positioning process, the process of sending and obtaining positioning assistance data is essential. The measurement/reporting of positioning reference signals and position calculation processes need to be completed based on positioning assistance data. Therefore, how to better send positioning assistance data has become a problem to be solved.

Contents of the invention

In view of this, the data sending method, data receiving method, device, equipment, and storage medium provided by this application reduce network resource consumption while ensuring the accuracy of high-precision positioning.

According to an aspect of an embodiment of the present application, a data sending method is provided, including: determining regional characteristics of a positioning service area; selecting a target transmission method that matches the regional characteristics from candidate transmission methods of positioning assistance data; using The target transmission method sends the positioning assistance data to the terminal; in this way, since the positioning assistance data transmission method matches the regional characteristics of the positioning service area, it is possible to obtain the positioning assistance data without affecting the terminal positioning. to reduce network resource consumption. That is, network resources are saved while ensuring high-precision positioning of the terminal.

According to one aspect of an embodiment of the present application, a data receiving method is provided, including: determining specific parameters of a terminal that represent the degree of positioning requirements; based on the specific parameters, using a corresponding acquisition method to obtain positioning assistance data from a network device; thus , because the terminal does not use the corresponding receiving method to receive the positioning assistance data based on the target sending method adopted by the network device, but selects the appropriate acquisition method to obtain the positioning assistance data based on its own positioning needs, so the terminal power consumption can be saved .

For example, assume that the network device is frequently broadcasting positioning assistance data, and the terminal has insufficient power at this time. If the positioning assistance data is frequently received according to the broadcast cycle of the network device, more power will be consumed; therefore, the terminal can choose on-demand or When positioning is needed, the acquisition method actively sends a positioning service request to obtain positioning assistance data, thereby saving power consumption.

According to an aspect of an embodiment of the present application, a data sending device is provided, including: a first determination module configured to determine the regional characteristics of a positioning service area; a selection module configured to select from candidate sending methods of positioning assistance data, and A target sending method matching the regional characteristics; a sending module configured to send the positioning assistance data to the terminal using the target sending method.

According to an aspect of an embodiment of the present application, a data receiving device is provided, including: a second determination module configured to determine specific parameters of the terminal that represent the degree of positioning requirements; a data acquisition module configured to use the corresponding The acquisition method obtains positioning assistance data from the network device.

According to an aspect of an embodiment of the present application, a network device is provided, including a memory and a processor. The memory stores a computer program that can be run on the processor. When the processor executes the program, the embodiment of the present application is implemented. the method described.

According to an aspect of an embodiment of the present application, a terminal is provided, including a memory and a processor. The memory stores a computer program that can be run on the processor. When the processor executes the program, the embodiments of the present application are implemented. method described.

According to one aspect of an embodiment of the present application, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the method provided by the embodiment of the present application is implemented.

It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and do not limit the present application.

Description of the drawings

The accompanying drawings herein are incorporated into the specification and constitute a part of the specification. These drawings illustrate embodiments consistent with the present application, and together with the description, are used to explain the technical solutions of the present application. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts.

The flowcharts shown in the drawings are only illustrative, and do not necessarily include all contents and operations/steps, nor must they be performed in the order described. For example, some operations/steps can be decomposed, and some operations/steps can be merged or partially merged, so the actual order of execution may change according to the actual situation.

Figure 1 is a schematic flow chart of the implementation of a data sending method provided by an embodiment of the present application;

Figure 2 is a schematic flow chart of the implementation of another data sending method provided by an embodiment of the present application;

Figure 3 is a schematic flow chart of the implementation of a data receiving method provided by an embodiment of the present application;

Figure 4 is a schematic flowchart of the implementation of another data receiving method provided by an embodiment of the present application;

Figure 5 is a schematic flow chart of the implementation of another data sending method provided by the embodiment of the present application;

Figure 6 is a schematic flow chart of the implementation of another data receiving method provided by an embodiment of the present application;

Figure 7 is a schematic structural diagram of a data sending device provided by an embodiment of the present application;

Figure 8 is a schematic structural diagram of a data receiving device provided by an embodiment of the present application;

Figure 9 is a schematic diagram of the hardware entity of the network device provided by the embodiment of the present application;

Figure 10 is a schematic diagram of the hardware entity of the terminal provided by the embodiment of the present application.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the specific technical solutions of the present application will be further described in detail below in conjunction with the drawings in the embodiments of the present application. The following examples are used to illustrate the present application but are not intended to limit the scope of the present application.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein are only for the purpose of describing the embodiments of the present application and are not intended to limit the present application.

In the following description, reference is made to "some embodiments" which describe a subset of all possible embodiments, but it is understood that "some embodiments" may be the same subset or a different subset of all possible embodiments, and Can be combined with each other without conflict.

Embodiments of the present application provide a data sending method and a data receiving method. The data sending method can be applied to network side devices in various communication systems. Wherein, the communication system may be a Global System of Mobile communication (GSM) system, a Code Division Multiple Access (Code Division Multiple Access, CDMA) system, a Wideband Code Division Multiple Access (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Universal Mobile Telecommunication System (UMTS) and fifth generation mobile communication technology (5th Generation Mobile Communication Technology, 5G) system . The network side device may be a physical network device used to communicate with the mobile terminal device, which may be an existing cellular base station or a cellular base station with a satellite reference station. For example, the network equipment can be a Base Transceiver Station (BTS) in Global System of Mobile Communication (GSM) or Broadband Code Division Multiple Access (Code DivisionMultiple Acccess), or it can also be a Long Term Evolution (LTE) ), relay stations or access points in the Evolutional Node B (eNodeB) and network side equipment in the 5G network. Of course, the data sending method may also be a terminal device, which is used to assist other terminals in positioning.

Correspondingly, the data receiving method can be applied to terminal-side equipment in various communication systems. The terminal-side equipment can be called terminal equipment, terminal or user equipment (User Equipment, UE), etc., and the terminal equipment can be various Types of devices with information processing capabilities. For example, the terminal device may be a mobile phone, a tablet computer, a navigator, a wearable device, a drone, a robot, a vehicle-mounted device, etc.

Figure 1 is a schematic flow chart of the implementation of the data sending method provided by the embodiment of the present application. As shown in Figure 1, the method may include the following steps 101 to 103:

Step 101: The network device determines the regional characteristics of the positioning service area.

In some embodiments, network equipment includes but is not limited to: location management function (Location BasedService, LMF) network element, access and mobility management function (Access and Mobility Management Function, AMF) network element, broadcast platform, and high-precision positioning platform. wait.

In some embodiments, the positioning service area is an area radiated by an antenna corresponding to the network device. For example, the positioning service area includes one or more cells.

In some embodiments, the area characteristics include terminal movement characteristics of the positioning service area and/or the number of positioning terminals in the positioning service area within a specific period of time.

In this embodiment of the present application, there is no limit to the parameters that represent the movement characteristics of the terminal in the positioning service area. In short, it only needs to be able to represent the overall movement characteristics of the positioning service area. For example, in some embodiments, the terminal movement characteristics include at least one of the following: the minimum speed limit of the road in the positioning service area, the average moving speed of all terminals in the positioning service area, the moving speed in the positioning service area is greater than the fourth threshold number of terminals.

Of course, the method for determining the number of positioning terminals in the positioning service area within a specific period of time is not limited. For example, in some embodiments, the network device may determine the number of positioning terminals in the positioning service area based on the number of positioning service requests received within a specific period of time. Or, directly use the number of positioning service requests as the number of positioning terminals. For example, in other embodiments, the network device may determine the number of all terminals covered by the positioning service area, and then determine the number of positioning terminals based on experience (for example, there is a proportional relationship between the total number of terminals and the number of positioning terminals in the area).

Step 102: The network device selects a target transmission method that matches the regional characteristics from the candidate transmission methods of positioning assistance data.

In some embodiments, candidate transmission methods of positioning assistance data include but are not limited to: periodically broadcasting positioning assistance data, on-demand positioning assistance data, and radio resource control (Radio Resource Control, RRC) signaling to transmit positioning assistance data, etc. Then the network device can select a suitable candidate transmission method as the target transmission method based on the current regional characteristics of the positioning service area.

For example, if the terminal movement characteristics in the area meet the high-speed movement conditions and/or the number of positioning terminals in the area is greater than the first threshold, the candidate transmission method of periodically broadcasting positioning assistance data will be used as the target transmission method, which can save money. Resource overhead of RRC signaling; conversely, if the terminal mobility characteristics in the area do not meet the high-speed movement conditions and/or the number of positioning terminals in the area is less than or equal to the first threshold, on-demand and/or RRC signaling can be used As a target sending method, this can save resource consumption on the broadcast channel.

The so-called on-demand means that the terminal sends a positioning service request to the network device, and the network device responds to the request by broadcasting positioning assistance data through the broadcast channel; the so-called sending method based on RRC signaling means that the terminal sends a positioning service request to the network device through RRC signaling. , the network device sends positioning assistance data to the requesting terminal through RRC signaling based on the RRC connection link with the terminal.

In some embodiments, further, step 102 can be implemented through step 202 to step 203 and step 206 in the following embodiments, which will not be described again here.

Step 103: The network device uses the target sending method to send the positioning assistance data to the terminal.

In some embodiments, step 103 can be implemented through steps 204 to 205 and step 207 in the following embodiments, which will not be described again here.

In this embodiment of the present application, since the positioning assistance data is sent in a manner that matches the regional characteristics of the positioning service area, network resource consumption can be reduced without affecting the positioning of the terminal by obtaining the positioning assistance data before positioning. That is, network resources are saved while ensuring high-precision positioning of the terminal.

The embodiment of the present application further provides a data sending method. Figure 2 is a schematic flow chart of another data sending method provided by the embodiment of the present application. As shown in Figure 2, the method may include the following steps 201 to 207:

Step 201: The network device determines the regional characteristics of the positioning service area;

Step 202: The network device determines whether the terminal movement characteristics satisfy the high-speed movement condition and/or whether the number of positioning terminals is greater than the first threshold; if so, step 203 is executed; that is, the terminal movement characteristics satisfy the high-speed movement condition and/or If the number of positioning terminals is greater than the first threshold, then step 203 is executed; otherwise, step 206 is executed; that is, if the terminal movement characteristics do not meet the high-speed movement condition and/or the number of positioning terminals is less than or equal to the first threshold, then step 206 is executed. .

In some embodiments, the first threshold can be set in advance according to actual positioning requirements, the first threshold can also be determined based on the number of positioning service requests received within the positioning service area for a specific historical period, or the first threshold can be directly received for a specific historical period. The number of location service requests received is used as the first threshold value. For another example, the first threshold value may be determined based on the product of the number of all terminals in the historical positioning service area and a preset ratio. The preset ratio is the ratio of the number of positioning terminals in the positioning service area to the number of all terminals determined based on experience. .

In some embodiments, the network device may determine that the terminal movement characteristics satisfy the high-speed movement condition based on determining that at least one of the following conditions (1) to (3) is met; wherein,

Condition (1) is that the positioning service area includes roads with a minimum speed limit greater than the third threshold;

In some embodiments, the third threshold may be preset according to actual positioning requirements, or may be determined based on the minimum speed limit on roads with high terminal movement speeds such as highways and/or urban arterial roads. For example, the third threshold may include a minimum speed limit on a highway and a minimum speed limit on an urban arterial road. That is to say, if the positioning service area includes roads with a minimum speed limit greater than the third threshold, it means that the area includes highways and/or urban arterial roads.

Condition (2) is that the number of terminals with a moving speed greater than the fourth threshold is greater than the fifth threshold;

In some embodiments, the fourth threshold can be preset according to actual positioning requirements, or can be determined based on the average moving speed of all terminals in historical periods on roads with high terminal moving speeds such as highways and/or urban main roads. The fourth threshold value. For example, the average moving speed is directly used as the fourth threshold value.

In some embodiments, the fifth threshold can be preset according to actual positioning requirements, or the fifth threshold can be determined based on the number of terminals in the positioning service area whose terminal movement speed is greater than the fourth threshold in the historical period, for example, Directly use this number of terminals as the fifth threshold value. The first threshold value may also be determined based on the product of the number of all terminals in the historical positioning service area and a preset ratio, where the preset ratio is the ratio of the number of positioning terminals to the number of all terminals in the positioning service area determined based on experience.

Condition (3) is that the circulation speed of the positioning service area is greater than the sixth threshold.

In some embodiments, the circulation speed may be the average, maximum or median moving speed of all terminals in the positioning service area; accordingly, the sixth threshold may be preset according to actual positioning requirements, or The sixth threshold value is determined based on the average, maximum or median moving speed of all terminals in the historical period on highways and/or urban main roads in the positioning service area. For example, the average, maximum or median moving speed is directly used as the sixth threshold value.

Step 203: The network device selects a candidate transmission method that periodically broadcasts positioning assistance data as a target transmission method.

It can be understood that when the terminal movement characteristics meet the high-speed movement condition and/or the number of positioning terminals is greater than the first threshold value, the terminal moves faster and/or the number of positioning terminals is larger. In this case, if The positioning assistance data is sent on demand, and the positioning assistance data is only broadcast once when the positioning service request sent by the terminal is received. Obviously, this cannot meet the real-time needs of each positioning terminal for obtaining positioning assistance data; and if RRC signaling is used The method of sending positioning assistance data is a one-to-one transmission method, that is, the terminal sends a positioning assistance request through RRC signaling, and the network device returns the positioning assistance data to the terminal through RRC signaling based on the communication link connected to it. Obviously In scenarios where there are a large number of positioning terminals, a large amount of RRC signaling overhead is required. In scenarios where terminals move quickly, the interaction delay of this method increases, which cannot satisfy the fast-moving terminals in obtaining positioning assistance data. Delay requirements lead to large positioning errors for fast-moving terminals.

Therefore, in the embodiment of the present application, in the positioning service area where the terminal moves quickly and/or the number of positioning terminals is large, periodically broadcasting positioning assistance data not only saves RRC signaling resources, but also ensures that the terminal is The positioning assistance data is received before the positioning request is sent, and the positioning assistance data is received in advance, which saves the time of interaction between the terminal and the network device, allowing the terminal to quickly obtain the positioning assistance data, thereby improving positioning accuracy.

Step 204: The network device determines the broadcast period of the positioning assistance data based on the terminal movement characteristics.

In some embodiments, the network device may determine the broadcast period of the positioning assistance data according to the movement characteristics of the terminal in the positioning service area. Specifically, in some embodiments, the broadcast period of the positioning assistance data is inversely proportional to the minimum speed limit of the road in the terminal movement characteristics, the average moving speed of all terminals, and the number of terminals whose moving speed is greater than the fourth threshold. That is, the greater the minimum speed limit of the road in the positioning service area and/or the greater the average moving speed of all terminals, the shorter the broadcast period for the network device to broadcast positioning assistance data. In this way, the terminal can obtain positioning assistance data in time even when moving rapidly. Furthermore, the greater the number of terminals whose moving speed is greater than the fourth threshold, the shorter the broadcast period for the network device to broadcast positioning assistance data. In this way, it is ensured that when there are a large number of terminals, each terminal can obtain positioning assistance data in a timely manner even when moving rapidly.

Step 205: The network device periodically broadcasts the positioning assistance data according to the broadcast cycle;

Step 206: The network device selects a candidate transmission method for transmitting positioning assistance data based on on-demand and/or RRC signaling as the target transmission method; and then proceeds to step 207.

The so-called on-demand means that the terminal sends a positioning service request to the network device, and the network device responds to the request by broadcasting positioning assistance data through the broadcast channel; the so-called sending method based on RRC signaling means that the terminal sends a positioning service request to the network device through RRC signaling. , the network device sends positioning assistance data to the requesting terminal through RRC signaling based on the RRC connection link with the terminal.

It can be understood that when the characteristics of the mobile terminal do not meet the high-speed movement condition and/or the number of positioning terminals is less than or equal to the first threshold value, the terminal moving speed is slow and/or the number of positioning terminals is Less; even if positioning assistance data is sent infrequently, it can still meet the positioning needs of each terminal in the positioning service area. However, in this scenario, if positioning assistance data is broadcast periodically, a large amount of broadcast resources will be wasted, so it will be based on Sending positioning assistance data on demand and/or RRC signaling as a target transmission method can effectively reduce broadcast resource consumption while ensuring the positioning requirements of each terminal in the area.

Step 207: Send the positioning assistance data to the terminal using the target sending method.

When implementing step 207, there is no restriction on which transmission method the network device chooses to send the positioning assistance data. One or two of them can be selected to send the positioning assistance data, or the positioning assistance data can be sent based on the number of positioning terminals and the second threshold. Select the corresponding method to send positioning assistance data according to the size relationship.

For example, in some embodiments, the network device may implement step 207 through the following steps 2071 to 2072 (not shown in the figure):

Step 2071: Broadcast the positioning assistance data based on determining that the number of positioning terminals is less than or equal to the first threshold and the number of positioning terminals is greater than the second threshold.

In some embodiments, the second threshold value may be preset according to actual positioning requirements, and the second threshold value is smaller than the first threshold value.

It can be understood that when the number of positioning terminals is less than or equal to the first threshold but greater than the second threshold, the number of positioning terminals will neither be too many nor too few. If RRC signaling is used to send positioning assistance data, the network device needs to send RRC signaling to each terminal that is greater than the second threshold. In this way, a large amount of RRC signaling overhead will be wasted. Therefore, only when the number of positioning terminals is less than or equal to the first threshold and greater than the second threshold, positioning assistance data is broadcast once, that is, on-demand positioning assistance data, which not only saves broadcast resources but also saves RRC signaling overhead. .

Step 2072: Based on determining that the number of positioning terminals is less than or equal to the second threshold, in response to the positioning service request, send the positioning assistance data to the sending terminal of the positioning service request through RRC signaling.

It can be understood that when the number of positioning terminals is less than or equal to the second threshold value, the number of positioning terminals is small. At this time, whether the network device periodically broadcasts positioning assistance data or on-demand positioning assistance data, it will cause damage to the broadcast resources. Excessive consumption. Therefore, by sending the positioning assistance data to the sending terminal of the positioning service request through RRC signaling, the consumption of broadcast resources can be reduced.

The embodiment of the present application provides a data receiving method. Figure 3 is a schematic flow chart of the implementation of the data receiving method provided by the embodiment of the present application. As shown in Figure 3, the method may include the following steps 301 to 302:

Step 301: The terminal determines specific parameters of the terminal that represent the degree of positioning requirements.

In some embodiments, the specific parameters include at least one of the following: movement speed, degree of position change, remaining power, changing speed of battery power, and foreground application type;

In some embodiments, the degree of location change can be determined by counting the total distance of changes in the UE's geographical coordinates within a specific period of time, or can also be determined based on the variance of changes in a certain reference coordinate; the foreground application types include but are not limited to: game software, video software, social networking software and shopping software, etc.

Step 302: Based on the specific parameters, the terminal obtains positioning assistance data from the network device using a corresponding acquisition method.

In some embodiments, step 302 can be implemented through steps 402 to 405 in the following embodiments, which will not be described again here.

It can be understood that when the terminal locates itself based on the positioning assistance data and the measurement information output by the navigation information source, the positioning assistance data is not received by the terminal using the corresponding receiving method based on the target sending method adopted by the network device. Instead, it chooses an appropriate acquisition method to obtain positioning assistance data from the network device based on its own positioning needs, so it can save its own power consumption.

The embodiment of the present application further provides a data receiving method. Figure 4 is a schematic flow chart of another data receiving method provided by the embodiment of the present application. As shown in Figure 2, the method may include the following steps 401 to 405:

Step 401: The terminal determines specific parameters of the terminal that represent the degree of positioning requirements;

Step 402: The terminal determines whether the specific parameter meets the weak demand condition; if so, perform step 403; if not, perform step 405.

In some embodiments, the terminal may determine that the specific parameter satisfies the weak positioning condition based on determining that at least one of the following conditions (1) to (5) is met; wherein,

Condition (1) is that the terminal moving speed is less than the sixth threshold; the sixth threshold can be preset according to actual positioning requirements, or it can be the normal driving speed of the road in the positioning service area.

Condition (2) is that the position change degree of the terminal within the preset time is less than the seventh threshold value; the seventh threshold value can be preset according to actual positioning requirements.

Condition (3) is that the remaining power of the terminal is less than the eighth threshold; the eighth threshold can be preset according to actual positioning requirements, or it can be the remaining power that the terminal's power management program prompts needs to be charged; for example, the eighth threshold Thresholds include 20%, 10% and/or 5%.

Condition (4) is that the change speed of the terminal battery power is greater than the ninth threshold value; the ninth threshold value can be preset according to actual positioning requirements.

Condition (5) is that the terminal foreground application type is a predefined high power consumption type. For example: gaming applications and/or video calling applications, etc.

Step 403: The terminal determines whether the network device uses periodic broadcasting to send the positioning assistance data; if so, perform step 4031; if not, perform step 4032.

Step 4031: The terminal receives the positioning assistance data using a specific reception period; wherein the specific reception period is greater than the broadcast period of the positioning assistance data; execute step 404.

It can be understood that if the specific parameters of the terminal meet the weak positioning requirements, the positioning requirements of the terminal are weak and/or the terminal has less power. When the network device uses periodic broadcasting to send positioning assistance data, the terminal can use a reception period greater than the broadcast period of the positioning assistance data to receive the positioning assistance data, without affecting its normal positioning requirements. The frequency of auxiliary data is reduced, saving the power consumption of the terminal.

Step 4032: The terminal sends a positioning service request to the network device; wherein the positioning service request is used to request the acquisition of the positioning assistance data; receives the positioning assistance data sent by the network device based on the positioning service request; performs steps 404.

It can be understood that when the terminal meets the weak positioning requirements, if the network device does not send positioning assistance data by periodic broadcast, the terminal can actively obtain the positioning assistance data according to its own needs by sending a positioning service request to the network device. On the one hand, the normal positioning requirements of the terminal are ensured; on the other hand, compared to not considering whether the terminal has positioning requirements, as long as the network device periodically broadcasts positioning assistance data, it will continue to receive the passive reception of the positioning assistance data. The acquisition method based on actively sending a positioning service request to the network device to obtain positioning assistance data not only saves broadcast resource overhead, but also saves terminal power consumption.

In some embodiments, the terminal can obtain positioning assistance data in any current RRC state. For example, if the current RRC state of the terminal is the idle state, the terminal can obtain positioning assistance data in the RRC idle state; if the current RRC state of the terminal is the connected state, the terminal can obtain the positioning assistance data while maintaining the current RRC connected state. The positioning assistance data does not need to change the current state when acquiring the positioning assistance data, thereby improving the acquisition speed.

Step 404: Based on determining that the specific parameter meets the weak demand condition, the terminal reports an adjustment suggestion to the network device; the adjustment suggestion includes: suggesting that the network device extend the location reporting cycle and/or the reason for the extension.

In some embodiments, the terminal may add an adjustment suggestion field in a report reporting positioning measurement results or location information, and report the report carrying the location information and the adjustment suggestion together to the network device instead of reporting them separately, thereby saving money. network resource overhead.

Understandably, if the specific parameters of the terminal meet the weak positioning conditions, not only the suggestion to extend the location reporting period will be sent to the network device, but the reason for the extension will also be sent to the network device, which will help the network device judge whether the reported suggestion is feasible, so that Network equipment adopts more correct adjustment strategies.

Step 405: Based on determining that the specific parameter does not meet the weak demand condition, the terminal obtains the positioning assistance data according to the positioning assistance data sending method configured by the network device.

In some embodiments, if the specific parameters do not meet the weak demand condition, the terminal obtains the positioning assistance data according to the positioning assistance data sending mode configured by the network device. For example, if the network device uses periodic broadcasting to send positioning assistance data, then regardless of whether the terminal has positioning requirements, as long as the network device periodically broadcasts positioning assistance data, the terminal will continue to receive the positioning data sent by the network device accordingly. Auxiliary data, such as this, will help improve the accuracy of terminal positioning; if the network device does not use periodic broadcasting to send positioning assistance data. Then, at any time when there is a positioning requirement, the terminal can actively obtain positioning assistance data sent by the network device based on on-demand and/or RRC signaling by sending a positioning service request to ensure the terminal's positioning requirement.

Based on this, the following will describe an exemplary application of the embodiment of the present application in an actual application scenario.

3GPP evolution standards R15 (Release 15) and R16 (Release 16) introduce multiple positioning technologies, and each positioning technology requires different positioning assistance data. RAT positioning technology is a positioning method based on cellular network signals (5G NR signals), which can use uplink relative arrival time (Up Link Relative Time of Arrival, UL-RTOA) and downlink relative arrival time (Down Link Relative Time). of Arrival, DL-RTOA) and the round-trip delay (Multi-Round-Trip Time, Multi-RTT) from multiple network devices to the UE for positioning. Correspondingly, the positioning assistance data corresponding to the RAT positioning technology can be used by the UE to obtain the resource configuration of the uplink/downlink positioning reference signals, position calculation information, etc.; the non-RAT positioning technology is based on the Global Navigation Satellite System (GNSS). ), BDS, GPS or UE positioning sensor positioning method. The corresponding positioning auxiliary data can include auxiliary information for GNSS accelerated star search, or differential information used to improve positioning accuracy.

Currently, the methods for the UE to obtain positioning assistance data are divided into two types: based on the user plane (for example, application (Application, APP)) and based on the control plane (for example, 5G NR network wireless signal). Among them, the method of sending positioning assistance data through the control plane through the network (i.e., network equipment) has gradually attracted the attention of the industry because it can reduce the consumption of network resources, reduce the pressure on positioning platform construction, and better protect user privacy. The control plane's method of sending positioning assistance data can be subdivided into three types: RRC signaling, idle broadcast (hereinafter referred to as idle broadcast), and connected broadcast (hereinafter referred to as connected broadcast). Among them, idle state broadcasting and connected state broadcasting can also be divided into two types: periodic broadcasting of positioning auxiliary data and on-demand positioning auxiliary data. Table 1 shows the characteristics of the three methods of sending positioning assistance data on the control plane.

Table 1:

In the embodiment of this application, the method of sending and receiving positioning assistance data specifically includes two solutions, respectively corresponding to different implementation network elements. The two solutions are juxtaposed and can be deployed and implemented simultaneously or separately.

Option 1: The positioning assistance data transmission method is implemented by high-precision positioning related network elements (network equipment) on the network side;

Option 2: Implement the positioning assistance data acquisition method on the terminal side.

Figure 5 is a schematic flowchart of the implementation of another data sending method provided by an embodiment of the present application. As shown in Figure 5, it may include the following steps 501 to 505:

Step 501: Determine whether the terminal movement characteristics satisfy the high-speed movement condition and/or whether the number of positioning terminals is greater than the first threshold value; if the terminal movement characteristics satisfy the high-speed movement condition and/or the number of positioning terminals is greater than the first threshold value, If a threshold value is obtained, step 502 is executed; if the characteristics of the mobile terminal do not meet the high-speed movement condition and/or the number of positioning terminals is less than or equal to the first threshold value, step 504 is executed;

The high-precision positioning related network element on the network side determines the method used by the network device to send positioning assistance data and/or the parameter configuration related to the sending method.

The network element related to high-precision positioning on the network side determines the method used by the network device to send positioning assistance data and/or the parameter configuration related to the sending method based on at least one of the following parameters: area coverage that supports high-precision positioning services, within a certain area The number of positioning service requesting users, the terminal movement speed, the method used by the network to send positioning assistance data, and the parameter configuration related to the sending method.

Among them, network elements related to high-precision positioning on the network side can include but are not limited to location server LMF, mobility management server AMF, broadcast platform, high-precision positioning platform, etc., and can be one type of network element or a combination of multiple network elements; The area supporting high-precision positioning services may contain one or more cellular cells; the method used by the system to send positioning assistance data includes at least one of the following: periodic broadcast positioning assistance data, on-demand positioning assistance data and dedicated RRC signaling to send positioning Auxiliary data; parameter configuration related to the sending method, including but not limited to the broadcast cycle of periodic broadcast of positioning auxiliary data, etc.

Step 502: The network device determines to periodically broadcast positioning assistance data within the positioning service area;

The network device gives priority to setting one or more terminal moving speed thresholds (i.e., the fourth threshold, the threshold value can be flexibly configured), and the network gives priority to setting one or more terminal quantity thresholds (i.e., the fifth threshold). The threshold value can be flexibly configured, or can be determined based on the number of all terminals covered by the positioning service area and the preset ratio. The preset ratio is the number of positioning terminals and the number of all terminals in the positioning service area determined based on experience. ratio). When the number of terminals whose moving speed exceeds the fourth threshold exceeds the fifth threshold in an area that supports high-precision positioning services, the network device determines to periodically broadcast positioning assistance data in the area.

Step 503: The network device determines the sending cycle and related configuration of periodically broadcasting positioning assistance data based on the average moving speed of all terminals in the positioning service area.

Based on the average moving speed of all terminals in the area that supports high-precision positioning services, the broadcast period and related configuration of broadcast positioning assistance data are determined.

The network device pre-sets the corresponding relationship between one or more threshold values of the average terminal movement speed (the threshold value can be flexibly configured) and the broadcast period for periodically broadcasting positioning assistance data (the period value can be flexibly configured). The design principle of the correspondence relationship is that the higher the average terminal moving speed, the shorter the broadcast period of the system broadcast positioning assistance data.

Step 504: The network device determines to use on-demand and/or dedicated RRC signaling to send positioning assistance data within the positioning service area;

Step 505: The network device determines whether to use on-demand or dedicated RRC signaling to send positioning assistance data in the area based on the number of positioning terminals in the positioning service area.

One or more positioning service requesting user number thresholds (second threshold) are preset. When the number of positioning service requesting users is greater than the second threshold, the network determines to broadcast positioning assistance data on demand in the area. . Otherwise, when the number of positioning service requesting users is less than or equal to the second threshold value, the network determines to use dedicated RRC signaling to send positioning assistance data in the area.

The network obtains the number of positioning terminals in the positioning service area by counting the number of users who access the high-precision positioning platform within a certain period of time, or by counting the number of users who apply for positioning assistance data encryption keys from the mobility management server AMF within a certain period of time. The network element that counts the number of users can be a broadcast platform, a location server LMF, or other network elements with equivalent functions.

Figure 6 is a schematic flow chart of the implementation of another data receiving method provided by the embodiment of the present application, which can implement the positioning assistance data acquisition method on the terminal side; as shown in Figure 6, it can include the following steps 601 to 606:

Step 601: The terminal determines the terminal state (idle state or connected state) for obtaining the positioning assistance data based on the UE state at the time when it is determined that the high-precision positioning service needs to be initiated.

If the terminal determines that the time to initiate a high-precision positioning service request occurs in the RRC_IDLE/RRC_INACTIVE state, the terminal determines to obtain positioning assistance data in the RRC_IDLE/RRC_INACTIVE state; if the terminal determines that the time to initiate a high-precision positioning service request occurs in the RRC_CONNECTED state, then The terminal determines to obtain positioning assistance data in the RRC_CONNECTED state.

Step 602: Determine whether the network device sends positioning assistance data by periodically broadcasting positioning assistance data; if yes, execute step 603; if not, execute step 605.

Step 603: Under the premise that the network device periodically broadcasts positioning assistance data in the area, if the terminal meets the weak positioning conditions, that is, when the current moving speed is slow or stationary, and/or the remaining power of the terminal is small, the terminal can Adjust the cycle length for receiving positioning assistance data by yourself.

The terminal determines the method of obtaining positioning assistance data and related configurations based on its own movement speed and/or the degree of change in the terminal position and/or the remaining power.

The degree of change in the terminal position can be determined by counting the total distance of changes in the UE's geographical coordinates within a period of time or the variance of changes based on a certain reference coordinate.

Under the premise that the network device periodically broadcasts positioning assistance data within the positioning service area, if the specific parameters meet the weak demand conditions, that is, the current moving speed of the terminal is slow or stationary or the terminal position changes to a small extent, and/or the remaining power of the terminal If it is less, the terminal can adjust the cycle length of receiving positioning assistance data by itself; otherwise, the terminal obtains positioning assistance data according to the positioning assistance data sending method configured by the network.

The corresponding relationship between one or more terminal moving speed thresholds and the number of times the data is broadcast in the reception cycle is preset. That is, according to the terminal moving speed, the terminal chooses to receive the auxiliary data once after sending the auxiliary data X times in the network cycle. X can be preset according to actual positioning requirements.

Step 604: If the network device configures the UE to report its location according to a certain period, if the specific parameters meet the requirements, that is, the terminal is currently moving slowly or stationary or the terminal position has a small offset/change, and/or the terminal has remaining power. When the number is small, the terminal also carries suggestions for adjusting/extending the position reporting cycle and/or reasons for adjustment/extension when reporting the position.

Step 605: If the network supports dedicated RRC signaling to send positioning assistance data, and if the terminal is currently moving slowly or stationary, and/or the remaining power of the terminal is low, the terminal can actively send a positioning service request to the network device. Thereby obtaining positioning assistance data sent by the network device based on dedicated RRC signaling.

If the network device supports the dedicated RRC signaling method to send positioning assistance data, if the specific parameters meet the requirements, that is, the terminal is currently moving slowly or stationary or the terminal position offset/change is small, and/or the terminal has less remaining power. , the terminal may actively send a positioning service request to the network device to obtain positioning assistance data sent by the network device based on dedicated RRC signaling. Otherwise, the terminal obtains relevant data according to the positioning assistance data sending method configured by the network.

Step 606: If the network device configures the UE to report its location according to a certain period, if the specific parameters meet the weak demand conditions, that is, the terminal is currently moving slowly or stationary or the terminal position has a small offset/change, and/or the terminal has remaining power. When the number is small, the terminal also carries suggestions for adjusting/extending the position reporting cycle and/or reasons for adjustment/extension when reporting the position.

It should be noted that although the various steps of the methods in this application are described in a specific order in the drawings, this does not require or imply that these steps must be performed in that specific order, or that all of the steps shown must be performed to achieve the desired results. the result of. Additionally or alternatively, some steps can be omitted, multiple steps can be combined into one step for execution, and/or one step can be decomposed into multiple steps for execution, etc.; or, steps in different embodiments can be combined into a new technology. plan.

Based on the foregoing embodiments, embodiments of the present application provide a data sending device. The device includes various modules and each unit included in each module. It can be implemented by a processor; of course, it can also be implemented by a specific logic circuit. Implementation; During the implementation process, the processor can be a central processing unit (CPU), a microprocessor (MPU), a digital signal processor (DSP) or a field programmable gate array (FPGA), etc.

Based on the foregoing embodiments, embodiments of the present application provide a data receiving device. The device includes various modules and each unit included in each module. It can be implemented by a processor; of course, it can also be implemented by a specific logic circuit. Implementation; During the implementation process, the processor can be a central processing unit (CPU), a microprocessor (MPU), a digital signal processor (DSP) or a field programmable gate array (FPGA), etc.

Figure 7 is a schematic structural diagram of a data sending device provided by an embodiment of the present application; as shown in Figure 7, the data sending device 70 includes a first determination module 701, a selection module 702 and a sending module 703, wherein:

The first determination module 701 is configured to determine the regional characteristics of the positioning service area;

The selection module 702 is configured to select a target transmission method that matches the regional characteristics from the candidate transmission methods of positioning assistance data;

The sending module 703 is configured to send the positioning assistance data to the terminal using the target sending method.

In some embodiments, the area characteristics include terminal movement characteristics of the positioning service area and/or the number of positioning terminals in the positioning service area within a specific period of time.

In some embodiments, the selection module 702 is configured to select candidates for periodically broadcasting positioning assistance data based on determining that the terminal movement characteristics meet high-speed movement conditions and/or the number of positioning terminals is greater than a first threshold. The delivery method serves as the target delivery method.

In some embodiments, the selection module 702 is configured to determine the broadcast period of the positioning assistance data based on the terminal movement characteristics.

In some embodiments, the sending module 703 is configured to periodically broadcast the positioning assistance data according to the broadcast cycle.

In some embodiments, the selection module 702 is configured to select on-demand based on determining that the terminal movement characteristics do not meet the high-speed movement condition and/or the number of positioning terminals is less than or equal to the first threshold. and/or RRC signaling to send a candidate transmission mode of positioning assistance data as the target transmission mode.

In some embodiments, the sending module 703 is configured to broadcast the positioning assistance based on determining that the number of positioning terminals is less than or equal to the first threshold, and the number of positioning terminals is greater than the second threshold. Data; based on determining that the number of positioning terminals is less than or equal to the second threshold value, in response to the positioning service request, sending the positioning assistance data to the sending terminal of the positioning service request through RRC signaling.

In some embodiments, the selection module 702 is configured to determine that at least one of the following conditions is met: the positioning service area includes roads with a minimum speed limit greater than the third threshold, and a moving speed greater than the fourth threshold. If the number of terminals with a limit is greater than the fifth threshold and the circulation speed of the positioning service area is greater than the sixth threshold, it is determined that the terminal movement characteristics satisfy the high-speed movement condition.

Figure 8 is a schematic structural diagram of a data receiving device provided by an embodiment of the present application; as shown in Figure 8, the data receiving device 80 includes a second determination module 801 and a data acquisition module 802, wherein:

The second determination module 801 is configured to determine specific parameters of the terminal that represent the degree of positioning requirements;

The data acquisition module 802 is configured to acquire positioning assistance data from the network device using a corresponding acquisition method based on the specific parameters.

In some embodiments, the data acquisition module 802 is configured to use a specific reception period based on determining that the specific parameter meets the weak demand condition, and the network device uses a periodic broadcast method or on-demand to send the positioning assistance data. The positioning assistance data is received; wherein the specific reception period is greater than the broadcasting period of the positioning assistance data.

In some embodiments, the data acquisition module 802 is configured to send a positioning service request to the network device based on determining that the specific parameter meets the weak demand condition; wherein the positioning service request is used to request to obtain the positioning Assistance data: receiving positioning assistance data sent by the network device based on the positioning service request.

In some embodiments, the data acquisition device further includes a reporting module 803, configured to report adjustment suggestions to the network device based on determining that the specific parameter meets the weak demand condition; the adjustment suggestions include: suggesting to the network device Extend the location reporting period and/or the reason for the extension.

In some embodiments, the reporting module 803 is configured to add the adjustment suggestion to the report carrying the location information based on determining that the specific parameter meets the weak demand condition; and add the adjustment suggestion to the report carrying the location information and the adjustment suggestion. The report is reported to the network device; the specific parameters include at least one of the following: movement speed, degree of location change, remaining power, battery power change speed, and foreground application type.

In some embodiments, the data acquisition module 802 is configured to determine that at least one of the following conditions is met: the moving speed is less than a sixth threshold, the position change degree is less than a seventh threshold, If the remaining power is less than the eighth threshold, the change speed of the battery power is greater than the ninth threshold, and the foreground application type is a predefined high power consumption type, it is determined that the specific parameter meets the weak demand condition.

In some embodiments, the positioning assistance data is obtained while maintaining the current RRC connection state.

The description of the above device embodiment is similar to the description of the above method embodiment, and has similar beneficial effects as the method embodiment. For technical details not disclosed in the device embodiments of this application, please refer to the description of the method embodiments of this application for understanding.

It should be noted that in the embodiment of the present application, the division of modules between the data sending device shown in Figure 7 and the data receiving device shown in Figure 8 is schematic and is only a logical function division. In actual implementation, there may be other modules. way of division. In addition, each functional unit in various embodiments of the present application may be integrated into one processing unit, may exist independently, or may have two or more units integrated into one unit. The above integrated units can be implemented in the form of hardware or software functional units. It can also be implemented by combining software and hardware.

It should be noted that in the embodiments of the present application, if the above-mentioned data sending method and data receiving method are implemented in the form of software function modules and sold or used as independent products, they can also be stored in a computer-readable storage medium. middle. Based on this understanding, the technical solutions of the embodiments of the present application can be embodied in the form of software products that are essentially or contribute to related technologies. The computer software product is stored in a storage medium and includes a number of instructions to enable Network devices and terminals execute all or part of the methods described in various embodiments of this application. The aforementioned storage media include: U disk, mobile hard disk, read only memory (Read Only Memory, ROM), magnetic disk or optical disk and other various media that can store program codes. As such, embodiments of the present application are not limited to any specific combination of hardware and software.

The embodiment of the present application provides a network device. Figure 9 is a schematic diagram of the hardware entity of the network device provided by the embodiment of the present application. As shown in Figure 9, the network device 90 includes a memory 91 and a processor 92. The memory 91 stores There is a computer program that can be run on the processor 92, and when the processor 92 executes the program, the steps in the method provided in the above embodiments are implemented.

It should be noted that the memory 91 is configured to store instructions and applications executable by the processor 92, and can also cache data to be processed or processed by each module in the processor 92 and the network device 90 (for example, image data, audio data , voice communication data and video communication data), which can be implemented through flash memory (FLASH) or random access memory (RandomAccess Memory, RAM).

An embodiment of the present application provides a terminal. Figure 10 is a schematic diagram of the hardware entity of the terminal provided by an embodiment of the present application. As shown in Figure 10, the terminal 100 includes a memory 101 and a processor 102. The memory 101 stores information available in A computer program runs on the processor 102. When the processor 102 executes the program, the steps in the method provided in the above embodiment are implemented.

It should be noted that the memory 101 is configured to store instructions and applications executable by the processor 102, and can also cache data to be processed or processed by each module in the processor 102 and the terminal 100 (for example, image data, audio data, Voice communication data and video communication data) can be implemented through flash memory (FLASH) or random access memory (RandomAccess Memory, RAM).

Embodiments of the present application provide a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the steps in the data sending method and the data receiving method provided in the above embodiments are implemented.

Embodiments of the present application provide a computer program product containing instructions that, when run on a computer, cause the computer to perform steps in the data sending method and data receiving method provided by the above method embodiments.

It should be pointed out here that the above description of the storage medium and device embodiments is similar to the description of the above method embodiments, and has similar beneficial effects as the method embodiments. For technical details not disclosed in the storage medium, storage medium and device embodiments of this application, please refer to the description of the method embodiments of this application for understanding.

It will be understood that reference throughout this specification to "one embodiment" or "an embodiment" or "some embodiments" means that a particular feature, structure, or characteristic associated with the embodiment is included in at least one embodiment of the present application. . Thus, the appearances of "in one embodiment" or "in an embodiment" or "in some embodiments" in various places throughout this specification are not necessarily referring to the same embodiment. Furthermore, the particular features, structures or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that in the various embodiments of the present application, the size of the sequence numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its functions and internal logic, and should not be used in the embodiments of the present application. The implementation process constitutes any limitation. The above serial numbers of the embodiments of the present application are only for description and do not represent the advantages or disadvantages of the embodiments. The above description of various embodiments tends to emphasize the differences between the various embodiments, and the similarities or similarities can be referred to each other. For the sake of brevity, they will not be described again here.

The term "and/or" in this article is just an association relationship that describes related objects, indicating that there can be three relationships, such as object A and/or object B, which can mean: object A exists alone, and object A and object exist at the same time. B, there are three cases of object B alone.

It should be noted that, in this document, the terms "comprising", "comprises" or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article or device that includes a series of elements not only includes those elements, It also includes other elements not expressly listed or inherent in the process, method, article or equipment. Without further limitation, an element defined by the statement "comprises a..." does not exclude the presence of other identical elements in a process, method, article or device that includes that element.

In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. The above-described embodiments are only illustrative. For example, the division of modules is only a logical function division. In actual implementation, there may be other division methods, such as: multiple modules or components may be combined, or may be Integrated into another system, or some features can be ignored, or not implemented. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or modules may be electrical, mechanical, or other forms. of.

The modules described above as separate components may or may not be physically separated; the components shown as modules may or may not be physical modules; they may be located in one place or distributed to multiple network units; Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional module in each embodiment of the present application can be all integrated into one processing unit, or each module can be separately used as a unit, or two or more modules can be integrated into one unit; the above-mentioned integration The module can be implemented in the form of hardware or in the form of hardware plus software functional units.

Those of ordinary skill in the art can understand that all or part of the steps to implement the above method embodiments can be completed through hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When the program is executed, the execution includes: The steps of the above method embodiment; and the aforementioned storage media include: mobile storage devices, read-only memory (Read Only Memory, ROM), magnetic disks or optical disks and other various media that can store program codes.

Alternatively, if the integrated units mentioned above in this application are implemented in the form of software function modules and sold or used as independent products, they can also be stored in a computer-readable storage medium. Based on this understanding, the technical solutions of the embodiments of the present application can be embodied in the form of software products that are essentially or contribute to related technologies. The computer software product is stored in a storage medium and includes a number of instructions to enable Network devices and terminals execute all or part of the methods described in various embodiments of this application. The aforementioned storage media include: mobile storage devices, ROMs, magnetic disks or optical disks and other media that can store program codes.

The methods disclosed in several method embodiments provided in this application can be combined arbitrarily to obtain new method embodiments without conflict.

The features disclosed in several product embodiments provided in this application can be combined arbitrarily without conflict to obtain new product embodiments.

The features disclosed in several method or device embodiments provided in this application can be combined arbitrarily without conflict to obtain new method embodiments or device embodiments.

The above are only embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person familiar with the technical field can easily think of changes or replacements within the technical scope disclosed in the present application. are covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims (19)

1. A method of transmitting data, the method comprising:

determining the regional characteristics of a positioning service region;

selecting a target transmission mode matched with the regional characteristics from candidate transmission modes of the positioning auxiliary data;

and transmitting the positioning auxiliary data to a terminal by adopting the target transmission mode.

2. The method according to claim 1, wherein the area characteristics comprise terminal movement characteristics of the location service area and/or a number of location terminals of the location service area within a specific time period.

3. The method according to claim 2, wherein selecting a target transmission scheme matching the region feature from among candidate transmission schemes of positioning assistance data comprises:

and selecting a candidate transmission mode for periodically broadcasting positioning auxiliary data as the target transmission mode based on the fact that the terminal movement characteristics meet a high-speed movement condition and/or the number of the positioning terminals is larger than a first threshold value.

4. A method according to claim 3, characterized in that the method further comprises:

determining a broadcast period of the positioning assistance data based on the terminal movement characteristics;

correspondingly, the sending the positioning auxiliary data to the terminal by adopting the target sending mode comprises the following steps:

the positioning assistance data is periodically broadcast according to the broadcast period.

5. A method according to claim 3, characterized in that the method further comprises:

and selecting a candidate transmission mode for transmitting positioning auxiliary data based on-demand and/or RRC signaling as the target transmission mode based on the fact that the terminal movement characteristics do not meet the high-speed movement condition and/or the number of the positioning terminals is smaller than or equal to the first threshold value.

6. The method of claim 5, wherein said transmitting the positioning assistance data to the terminal using the target transmission scheme comprises:

broadcasting the positioning assistance data based on determining that the number of positioning terminals is less than or equal to the first threshold value and the number of positioning terminals is greater than a second threshold value;

and based on the fact that the number of the positioning terminals is smaller than or equal to the second threshold value, responding to a positioning service request, and sending the positioning auxiliary data to a sending terminal of the positioning service request through RRC signaling.

7. The method according to any one of claims 3 to 6, further comprising:

based on determining that at least one of the following conditions is satisfied: the positioning service area comprises a road with the lowest speed limit being greater than a third threshold value, the number of terminals with the moving speed being greater than a fourth threshold value is greater than a fifth threshold value, the circulation speed of the positioning service area is greater than a sixth threshold value, and the moving characteristics of the terminals are determined to meet the high-speed moving condition.

8. A method of data reception, the method comprising:

determining a specific parameter of the terminal, which characterizes the positioning requirement degree;

and acquiring positioning auxiliary data from the network equipment by adopting a corresponding acquisition mode based on the specific parameters.

9. The method of claim 8, wherein the acquiring positioning assistance data from the network device using the corresponding acquisition method based on the specific parameter comprises:

based on the fact that the specific parameter meets the weak demand condition, the network equipment adopts a periodical broadcasting mode or on-demand transmission of the positioning auxiliary data, and a specific receiving period is adopted to receive the positioning auxiliary data; wherein the specific reception period is greater than a broadcasting period of the positioning assistance data.

10. The method of claim 8, wherein the acquiring positioning assistance data from the network device using the corresponding acquisition method based on the specific parameter comprises:

transmitting a location service request to the network device based on determining that the particular parameter satisfies a weak demand condition; the positioning service request is used for requesting to acquire the positioning auxiliary data;

and receiving positioning auxiliary data sent by the network equipment based on the positioning service request.

11. The method of claim 8, wherein the method further comprises:

based on the fact that the specific parameter meets the weak demand condition, reporting an adjustment suggestion to the network equipment; the adjustment advice includes: the network device is suggested to extend the location reporting period and/or to extend the cause.

12. The method of claim 11, wherein reporting an adjustment recommendation to the network device based on determining that the particular parameter satisfies a low demand condition comprises:

based on determining that the particular parameter meets a weak demand condition, adding the adjustment proposal to a report carrying location information;

reporting the report carrying the position information and the adjustment advice to a network device.

13. The method according to any one of claims 9 to 12, wherein the specific parameters comprise at least one of: the moving speed, the position change degree, the residual electric quantity, the change speed of the battery electric quantity and the foreground application type; accordingly, the method comprises:

based on determining that at least one of the following conditions is satisfied: the moving speed is smaller than a sixth threshold value, the position change degree is smaller than a seventh threshold value, the residual electric quantity is smaller than an eighth threshold value, the change speed of the battery electric quantity is larger than a ninth threshold value, the foreground application type is a predefined high power consumption type, and the specific parameter is determined to meet the weak demand condition.

14. The method according to any of claims 8 to 12, wherein the positioning assistance data is acquired in a state in which a current RRC connected state is maintained.

15. A data transmission apparatus, comprising:

a first determination module configured to determine a regional characteristic of a location service region;

a selection module configured to select a target transmission mode matched with the region feature from candidate transmission modes of the positioning assistance data;

and the sending module is configured to send the positioning auxiliary data to the terminal by adopting the target sending mode.

16. A data receiving apparatus, comprising:

the second determining module is configured to determine a specific parameter of the terminal, which characterizes the positioning requirement degree;

and the data acquisition module is configured to acquire positioning auxiliary data from the network equipment in a corresponding acquisition mode based on the specific parameters.

17. A network device comprising a memory and a processor, the memory storing a computer program executable on the processor, wherein the processor implements the method of any one of claims 1 to 7 when the program is executed.

18. A terminal comprising a memory and a processor, the memory storing a computer program executable on the processor, wherein the processor implements the method of any one of claims 8 to 14 when the program is executed.

19. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the method according to any one of claims 1 to 7, or the computer program, when being executed by a processor, implements the method according to any one of claims 8 to 14.