WO2024000131A1

WO2024000131A1 - Ranging method and apparatus, communication device, and storage medium

Info

Publication number: WO2024000131A1
Application number: PCT/CN2022/101689
Authority: WO
Inventors: 商正仪; 陆伟
Original assignee: 北京小米移动软件有限公司
Priority date: 2022-06-27
Filing date: 2022-06-27
Publication date: 2024-01-04

Abstract

Embodiments of the present disclosure relate to a ranging method and apparatus, a communication device, and a storage medium. A network exposure function (NEF) determines, at least according to privacy settings of a user equipment (UE) related to a first ranging request, service parameters for ranging, wherein the first ranging request is a request for performing the ranging by means of a sidelink.

Description

Ranging methods, devices, communication equipment and storage media

Technical field

This application relates to the field of wireless communication technology but is not limited to the field of wireless communication technology, and in particular, to ranging methods, devices, communication equipment and storage media.

Background technique

Ranging may include determining ranging parameters between two user equipment (User Equipment, UE) UEs through a direct communication link (Sidelink, SL); where the ranging parameters may include at least one of the following parameters: between the two UEs The distance between one UE and another UE, the relative position of one UE and another UE. Ranging may also include direct communication link positioning, that is, UE positioning through PC5 and/or SR5. In short, ranging includes distance measurement, direction measurement, positioning or both.

Contents of the invention

In view of this, embodiments of the present disclosure provide a ranging method, device, communication device, and storage medium.

According to a first aspect of an embodiment of the present disclosure, a ranging method is provided, which is executed by a Network Exposure Function (NEF), including:

Determine the service parameters of ranging based on at least the privacy setting of the user equipment UE related to the first ranging request; wherein the first ranging request is a request to perform the ranging through a direct communication link.

In one embodiment, the privacy setting is used to indicate at least one of the following:

Whether said ranging is allowed;

The extent of the area within which said ranging is permitted;

The time range within which said ranging is allowed.

In one embodiment, the service parameters of ranging are determined based on at least the privacy settings of the user equipment UE related to the first ranging request; wherein the first ranging request is performed through a direct communication link. Ranging requests include:

Receive the first ranging request sent by an application function (Application Function, AF);

Based on the first ranging request, obtain the privacy settings of the UE from Unified Data Management (Unified Data Management, UDM);

Determine whether to provide the ranging service parameters according to the privacy settings.

In one embodiment, the method further includes: determining whether the AF is allowed to request the ranging from the UE;

In response to determining that the AF is allowed to request the ranging from the UE, the service parameters for the ranging are determined based on at least privacy settings of the UE associated with the first ranging request.

In one embodiment, the obtaining the privacy settings of the UE from UDM based on the first ranging request includes:

Determine the identity of the UE based on the UE ranging identifier of the UE carried in the first ranging request;

Determine the UDM corresponding to the UE based on the identity identifier;

Obtain the privacy settings of the UE from the UDM corresponding to the UE.

In one embodiment, determining the ranging service parameters based on at least the privacy settings of the user equipment UE related to the first ranging request includes:

In response to the privacy setting indicating the area range in which the ranging is allowed, sending location request information to the Access and Mobility Management Function (AMF) of the UE, wherein the location request information, Used to request the location information of the UE from the AMF;

Receive a location request response sent by the AMF based on the location request information, wherein the location request response includes the location information of the UE;

Based on at least the location information of the UE and the area range, it is determined whether the UE is allowed to perform the ranging.

In one embodiment, the location request information also includes a UE verification indication, used to indicate at least one of the following:

The related information of the ranging;

Whether it is necessary to indicate the ranging related information to the UE;

Whether the ranging related information is verified by the UE;

Wherein, the UE verification indication is set by the NEF based on the privacy setting.

In one embodiment, the ranging related information includes at least one of the following:

The application identifier of the application requesting the ranging in the AF;

The type of ranging.

In one embodiment, the location request response further includes: a verification result of the UE verifying the association information.

In one embodiment, determining whether to allow the UE to perform the ranging based on at least the location information of the UE and the area range includes:

Based on at least the location information of the UE, the area range, and the verification result, it is determined whether the UE is allowed to perform the ranging.

In one embodiment, the location request response also includes time information used to indicate the time when the UE allows and/or does not allow ranging.

In response to determining that the UE is allowed to perform the ranging based on the privacy setting, sending a second ranging request to the AMF of the UE, the second ranging request being used to instruct the UE to perform the ranging. distance.

According to a second aspect of an embodiment of the present disclosure, a ranging method is provided, wherein the ranging method is performed by the access and mobility management function AMF, including:

Providing service parameters for ranging based on the direct communication link, wherein the service parameters for ranging are indicated by the network opening function NEF at least according to the privacy settings of the user equipment UE associated with the ranging.

Whether said ranging is allowed;

The extent of the area within which said ranging is permitted;

The time range within which said ranging is allowed.

In one embodiment, the privacy settings are located in the Unified Data Management UDM of the UE.

In one embodiment, the method further includes:

Receive location request information sent by the NEF, wherein the location request information is used to request the location information of the UE from the AMF;

Send a location request response to the NEF, where the location request response includes location information of the UE, where the location information of the UE is used for the NEF to determine whether to allow the UE in combination with the area range. Perform the ranging.

The related information of the ranging;

Whether it is necessary to indicate the ranging related information to the UE;

Whether the ranging related information is verified by the UE;

The application identifier of the application requesting the ranging in AF;

The type of ranging.

In one embodiment, the service parameters for providing ranging based on direct communication links include:

In response to the UE verification indication indicating that the ranging association information needs to be indicated to the UE, sending first notification information to the UE, where the first notification information is used to indicate the ranging association. information.

In response to the UE verification indication indicating that the UE verifies the ranging association information, sending second notification information to the UE, wherein the second notification information is used to indicate that the UE needs to verify the ranging information. Ranging related information;

Receive verification result information sent by the UE in response to the second notification information, wherein the verification result information is used to instruct the UE to verify the verification result of the ranging associated information;

The sending a location request response to the NEF includes:

Send the location request response carrying the verification result to the NEF.

In one embodiment, the method further includes:

In response to determining that the UE needs to send the verification result information and the verification result information is not received, it is determined that the verification result is that the UE fails to verify the ranging associated information.

In one embodiment, the verification result information also includes time information, used to indicate the time when the UE allows and/or does not allow ranging;

The sending a location request response to the NEF includes:

Send the location request response carrying the time information to the NEF.

In one embodiment, the service parameters for ranging based on direct communication links include:

Receive a second ranging request sent by the NEF, wherein the second ranging request is determined by the NEF to allow the UE to perform the ranging sending based on the privacy setting;

Based on the second ranging request, the UE is instructed to perform the ranging.

According to a third aspect of an embodiment of the present disclosure, a ranging method is provided, in which a ranging method performed by a user equipment UE to be ranged includes:

Ranging based on the direct communication link is performed, wherein the ranging is performed as instructed by the network opening function NEF at least according to the privacy settings of the UE.

Whether said ranging is allowed;

The extent of the area within which said ranging is permitted;

The time range within which said ranging is allowed.

In one embodiment, the privacy setting is located in the UDM corresponding to the UE.

In one embodiment, the method further includes:

Receive first notification information sent by the access and mobility management function AMF, wherein the first notification information is used to indicate the associated information of the ranging; wherein the first notification information is based on the AMF The UE verification indication carried in the location request information sent by the NEF is sent, wherein the UE verification indication is determined by the NEF based on the privacy setting.

In one embodiment, the method further includes:

Receive second notification information sent by the AMF, where the second notification information is used to indicate that the UE verifies the association information of the ranging, where the second notification information is the AMF based on the The UE verification indication carried in the location request information sent by the NEF is sent, wherein the UE verification indication is determined by the NEF based on the privacy setting.

In one embodiment, the method further includes:

Send verification result information to the AMF, where the verification result information is used to instruct the UE to verify the verification result of the ranging associated information.

In one embodiment, the verification result information also includes time information, which is used to indicate the time when the UE allows and/or does not allow ranging.

In one embodiment, the method further includes one of the following:

In response to a failure to verify the ranging associated information, do not send verification result information to the AMF;

In response to the failure to verify the ranging associated information, verification result information indicating that the verification result is a verification failure is sent to the AMF.

In one embodiment, the location request information includes a UE verification indication, wherein the UE verification indication is used to indicate at least one of the following:

The associated information of the ranging;

Whether it is necessary to indicate the ranging related information to the UE;

Whether the ranging related information is verified by the UE;

The application identifier of the application requesting the ranging in AF;

The type of ranging.

In one embodiment, the ranging is performed by the ranging service AMF upon receiving a second ranging request sent by the NEF to instruct the UE, wherein the second ranging request is performed by the NEF based on the privacy The setting determines that the UE is allowed to perform the ranging transmission.

According to a fourth aspect of an embodiment of the present disclosure, a ranging device is provided, which includes:

A processing module configured to determine the service parameters of ranging based on at least the privacy settings of the user equipment UE related to the first ranging request; wherein the first ranging request is to perform the ranging through a direct communication link. ask.

Whether said ranging is allowed;

The scope of the area within which said ranging is permitted;

The time range within which said ranging is allowed.

In one embodiment, the device further includes a transceiver module configured to:

Receive the first ranging request sent by the application function AF;

The processing module is specifically configured to obtain the privacy settings of the UE from the unified data management UDM based on the first ranging request;

The processing module is specifically configured to determine whether to provide the ranging service parameters according to the privacy setting.

In one embodiment, the processing module is further configured to determine whether the AF is allowed to request the ranging from the UE;

The processing module is specifically configured to, in response to determining that the AF is allowed to request the UE to perform the ranging, determine the ranging based on at least the privacy settings of the UE related to the first ranging request. of the service parameters.

In one embodiment, the processing module is specifically configured as:

Determine the UDM corresponding to the UE based on the identity identifier;

Obtain the privacy settings of the UE from the UDM corresponding to the UE.

In one embodiment, the transceiver module is further configured to:

In response to the privacy setting indicating the area range within which the ranging is allowed, sending location request information to the access and mobility management function AMF of the UE, wherein the location request information is used to request the AMF for the range. The location information of the UE;

The processing module is specifically configured to: determine whether to allow the UE to perform the ranging based on at least the location information of the UE and the area range.

The associated information of the ranging;

Whether it is necessary to indicate the ranging related information to the UE;

Whether the ranging related information is verified by the UE;

The application identifier of the application requesting the ranging in the AF;

The type of ranging.

In one embodiment, the processing module is specifically configured as:

In one embodiment, the transceiver module is further configured to:

According to a fifth aspect of the embodiment of the present disclosure, a ranging device is provided, which includes:

A transceiver module configured to provide ranging service parameters based on the direct communication link, wherein the ranging service parameters are indicated by a network opening function NEF at least according to the privacy settings of the user equipment UE associated with the ranging. ongoing.

Whether said ranging is allowed;

The extent of the area within which said ranging is permitted;

The time range within which said ranging is allowed.

In one embodiment, the transceiver module is further configured to receive location request information sent by the NEF, where the location request information is used to request the location information of the UE from the AMF;

The transceiver module is further configured to send a location request response to the NEF, where the location request response includes the location information of the UE, where the location information of the UE is used by the NEF to combine the The area range determines whether the UE is allowed to perform the ranging.

The related information of the ranging;

Whether it is necessary to indicate the ranging related information to the UE;

Whether the ranging related information is verified by the UE;

The application identifier of the application requesting the ranging in AF;

The type of ranging.

In one embodiment, the transceiver module is specifically configured as:

The transceiver module is specifically configured to: send the location request response carrying the verification result to the NEF.

In one embodiment, the device further includes a processing module configured to:

The specific configuration of the transceiver module is:

Send the location request response carrying the time information to the NEF.

In one embodiment, the transceiver module is specifically configured as:

According to a sixth aspect of an embodiment of the present disclosure, a ranging device is provided, which includes:

A processing module configured to perform ranging based on the direct communication link, wherein the ranging is performed at least as indicated by the network opening function NEF according to the privacy settings of the UE.

Whether said ranging is allowed;

The extent of the area within which said ranging is permitted;

The time range within which said ranging is allowed.

In one embodiment, the device further includes:

A transceiver module configured to: receive first notification information sent by the access and mobility management function AMF, wherein the first notification information is used to indicate the associated information of the ranging; wherein the first notification information , is sent by the AMF based on the UE verification indication carried in the location request information sent by the NEF, wherein the UE verification indication is determined by the NEF based on the privacy setting.

In one embodiment, the device further includes:

The transceiver module is configured to: receive second notification information sent by the AMF, where the second notification information is used to indicate that the UE verifies the associated information of the ranging, where the second notification information is The AMF is sent based on the UE verification indication carried in the location request information sent by the NEF, wherein the UE verification indication is determined by the NEF based on the privacy setting.

In one embodiment, the transceiver module is further configured to:

In one embodiment, the transceiver module is further configured to be one of the following:

The related information of the ranging;

Whether it is necessary to indicate the ranging related information to the UE;

Whether the ranging related information is verified by the UE;

The application identifier of the application requesting the ranging in AF;

The type of ranging.

According to a seventh aspect of an embodiment of the present disclosure, a communication equipment device is provided, including a processor, a memory, and an executable program stored on the memory and capable of being run by the processor, wherein the processor runs the executable program. When the program is executed, the steps of the ranging method described in the first aspect, the second aspect, or the third aspect are performed.

According to an eighth aspect of an embodiment of the present disclosure, there is provided a storage medium on which an executable program is stored, wherein when the executable program is executed by a processor, the executable program implements the first aspect, the second aspect, or the third aspect. Describe the steps of the distance measurement method.

According to the ranging method, device, communication device and storage medium provided by the embodiments of the present disclosure, NEF determines the service parameters of ranging based on at least the privacy settings of the UE related to the first ranging request; wherein the first ranging request A request to perform said ranging via a direct communication link. In this way, based on the privacy settings of the UE, ranging of the direct communication link is performed, which can meet the privacy requirements of the UE during the ranging process and improve the security of ranging.

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

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description serve to explain the principles of the embodiments of the invention.

Figure 1 is a schematic structural diagram of a wireless communication system according to an exemplary embodiment;

Figure 2 is a schematic flow chart of a ranging method according to an exemplary embodiment;

Figure 3 is a schematic flow chart of a ranging method according to an exemplary embodiment;

Figure 4 is a schematic flow chart of a ranging method according to an exemplary embodiment;

Figure 5 is a schematic flow chart of a ranging method according to an exemplary embodiment;

Figure 6 is a schematic flowchart of a ranging method according to an exemplary embodiment;

Figure 7 is a schematic flow chart of a ranging method according to an exemplary embodiment;

Figure 8 is a schematic flow chart of a ranging method according to an exemplary embodiment;

Figure 9 is a schematic flowchart of a ranging method according to an exemplary embodiment;

Figure 10 is a schematic flow chart of a ranging method according to an exemplary embodiment;

Figure 11 is a schematic flow chart of a ranging method according to an exemplary embodiment;

Figure 12 is a schematic diagram of ranging interaction according to an exemplary embodiment;

Figure 13 is a block diagram of a distance measuring device according to an exemplary embodiment;

Figure 14 is a block diagram of a distance measuring device according to an exemplary embodiment;

Figure 15 is a block diagram of a distance measuring device according to an exemplary embodiment;

FIG. 16 is a block diagram of a device for ranging according to an exemplary embodiment.

Detailed ways

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with embodiments of the invention. Rather, they are merely examples of apparatus and methods consistent with aspects of embodiments of the invention as detailed in the appended claims.

The terminology used in the embodiments of the present disclosure is for the purpose of describing specific embodiments only and is not intended to limit the embodiments of the present disclosure. As used in the embodiments of this disclosure and the appended claims, the singular forms "a," "the" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It will also be understood that the term "and/or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used to describe various information in the embodiments of the present disclosure, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the embodiments of the present disclosure, the first information may also be called second information, and similarly, the second information may also be called first information. Depending on the context, the word "if" as used herein may be interpreted as "when" or "when" or "in response to determining."

Please refer to FIG. 1 , which shows a schematic structural diagram of a wireless communication system provided by an embodiment of the present disclosure. As shown in FIG. 1 , the wireless communication system is a communication system based on cellular mobile communication technology. The wireless communication system may include several terminals 11 and several base stations 12 .

Among them, the terminal 11 may be a device that provides voice and/or data connectivity to the user. The terminal 11 can communicate with one or more core networks via a Radio Access Network (RAN). The terminal 11 can be an Internet of Things terminal, such as a sensor device, a mobile phone (or a "cellular" phone) and a device with The computer of the Internet of Things terminal, for example, can be a fixed, portable, pocket-sized, handheld, computer-built-in or vehicle-mounted device. For example, station (STA), subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile station), mobile station (mobile), remote station (remote station), access point, remote terminal ( remote terminal), access terminal, user terminal, user agent, user device, or user equipment (UE). Alternatively, the terminal 11 may be a device of an unmanned aerial vehicle. Alternatively, the terminal 11 may also be a vehicle-mounted device, for example, it may be an on-board computer with a wireless communication function, or a wireless communication device connected to an external on-board computer. Alternatively, the terminal 11 may also be a roadside device, for example, it may be a streetlight, a signal light or other roadside device with wireless communication function.

The base station 12 may be a network-side device in a wireless communication system. Among them, the wireless communication system can be the 4th generation mobile communication technology (the 4th generation mobile communication, 4G) system, also known as the Long Term Evolution (LTE) system; or the wireless communication system can also be a 5G system, Also called new radio (NR) system or 5G NR system. Alternatively, the wireless communication system may also be a next-generation system of the 5G system. Among them, the access network in the 5G system can be called NG-RAN (New Generation-Radio Access Network). Or, MTC system.

The base station 12 may be an evolved base station (eNB) used in the 4G system. Alternatively, the base station 12 may also be a base station (gNB) that adopts a centralized distributed architecture in the 5G system. When the base station 12 adopts a centralized distributed architecture, it usually includes a centralized unit (central unit, CU) and at least two distributed units (distributed unit, DU). The centralized unit is equipped with a protocol stack including the Packet Data Convergence Protocol (PDCP) layer, the Radio Link Control protocol (Radio Link Control, RLC) layer, and the Media Access Control (Media Access Control, MAC) layer; distributed The unit is provided with a physical (Physical, PHY) layer protocol stack, and the embodiment of the present disclosure does not limit the specific implementation of the base station 12.

A wireless connection can be established between the base station 12 and the terminal 11 through a wireless air interface. In different implementations, the wireless air interface is a wireless air interface based on the fourth generation mobile communication network technology (4G) standard; or the wireless air interface is a wireless air interface based on the fifth generation mobile communication network technology (5G) standard, such as The wireless air interface is a new air interface; alternatively, the wireless air interface may also be a wireless air interface based on the next generation mobile communication network technology standard of 5G.

In some embodiments, an E2E (End to End) connection can also be established between terminals 11. For example, V2V (vehicle to vehicle, vehicle to vehicle) communication, V2I (vehicle to infrastructure, vehicle to roadside equipment) communication and V2P (vehicle to pedestrian, vehicle to person) communication in vehicle networking communication (vehicle to everything, V2X) Wait for the scene.

In some embodiments, the above-mentioned wireless communication system may also include a network management device 13.

Several base stations 12 are connected to the network management device 13 respectively. The network management device 13 may be a core network device in a wireless communication system. For example, the network management device 13 may be a mobility management entity (Mobility Management Entity) in an evolved packet core network (Evolved Packet Core, EPC). MME). Alternatively, the network management device can also be other core network devices, such as Serving Gate Way (SGW), Public Data Network Gate Way (PGW), Policy and Charging Rule Function Unit (Policy and Charging Rules Function (PCRF) or Home Subscriber Server (HSS), etc. The embodiment of the present disclosure does not limit the implementation form of the network management device 13 .

Cellular mobile communication systems such as the fifth generation ( ^5th Generation, 5G) can support ranging (Ranging)/direct communication link (SideLink, SL) positioning services. Here, the ranging/SL positioning service may be a ranging/positioning service based on a direct communication link. Ranging/SL positioning services can be exposed to 5G networks and application servers. The current ranging/SL positioning service does not consider the privacy issue of UE.

Therefore, how to protect the privacy of UE during the ranging/SL positioning service process is an issue that needs to be solved urgently.

It should be noted that all embodiments of the present disclosure may involve multiple execution subjects, and the execution subject sending a transmission to another execution subject as defined in the embodiments of the present disclosure may mean that one execution subject directly sends a transmission to another execution subject. The subject sending a transmission may also refer to an execution subject sending a transmission to another execution subject through any other device; this is not limited in the embodiments of the present disclosure.

As shown in Figure 2, this exemplary embodiment provides a ranging method that can be executed by the network opening function NEF of the cellular mobile communication system, including:

Step 201: NEF determines the service parameters of ranging based on at least the privacy settings of the UE related to the first ranging request; wherein the first ranging request is a request to perform the ranging through a direct communication link.

In a possible implementation, ranging based on the direct communication link may include: ranging based on signals of the PC5 port and/or the SR5 port of the direct communication link.

Here, ranging may include but is not limited to at least one of the following: determining the distance between two or more UEs through a direct communication link; determining the relative direction of one UE and another UE through a direct communication link; The relative position of one UE to another UE is determined over a direct communication link. Ranging may also include direct communication link positioning, that is, positioning the UE through a direct communication link.

For example, multiple UEs can be combined to perform ranging on the target UE to determine the distance and/or direction values between the target UE and the multiple UEs. The triangulation method can also be used to determine the coordinates of the target UE through the ranging results of multiple UEs and the target UE to achieve direct communication link positioning.

In this embodiment, unless otherwise specified, "ranging" may include at least one of the following: determining the distance between two or more UEs through a direct communication link, determining the distance between one UE and another through a direct communication link. The relative direction of a UE, determining the relative position of one UE and another UE through the direct communication link, positioning the UE through the direct communication link, etc. Among them, determining the relative direction and relative position of one UE and another UE through the direct communication link is often performed together.

In a possible implementation, ranging between multiple UEs to be measured based on direct communication links can be used to determine the relationship between N UEs to be ranged among the multiple UEs to be ranged and multiple UEs to be ranged. The distance and/or direction of other UEs among the UEs to be measured can also be used to determine the positions of N UEs to be measured among multiple UEs to be measured, where N is greater than or equal to 1 and less than or equal to the UE to be measured. A positive integer that measures the total number of UEs.

For example, the UE and/or the core network equipment (such as LMF, etc.) may determine the distance between the UEs based on the flight time of signals transmitted by the PC5 and/or SR5 ports between the UEs. Further, based on the relative positions between multiple UEs with known locations and UEs with unknown locations, positioning of UEs with unknown locations can be achieved, that is, positioning of UEs with unknown locations can be achieved. Here, the location of the UE may include but is not limited to: the geographical coordinate location of the UE, the relative location of the UE relative to a reference point (such as a base station or a known location UE), etc. No limitation is made here.

The NEF may provide ranging service parameters based on the first ranging request.

In a possible implementation, the ranging service parameters provided by NEF include but are not limited to at least one of the following:

Control whether the UE performs ranging;

Transmit information during the ranging process;

Determine the privacy settings of the UE;

Perform associated operations related to UE privacy settings, such as determining whether the current situation meets privacy setting requirements, etc.

In a possible implementation, NEF can control the UE to perform ranging through core network elements such as AMF.

Here, the UEs associated with the ranging may include but are not limited to UEs participating in the ranging. The UEs associated with the ranging may include but are not limited to at least one of the following: reference UE, target UE, observer UE, third party UE, Assist UE (Assistant UE).

The privacy setting may be used to indicate the UE's privacy information related to ranging. Limit the ranging behavior of the UE.

In a possible implementation, the privacy setting of the UE may indicate the type of ranging that the UE is allowed to perform, and/or the type of ranging that the UE is not allowed to perform.

The type of ranging may be determined based on the number of UEs participating in ranging. For example, the types of ranging include: ranging through different numbers of UEs.

The type of ranging may also be determined based on the ranging result of the ranging. For example, the types of ranging may include: ranging for relative distance measurement, ranging for relative direction measurement, ranging for UE positioning, etc.

In a possible implementation, the privacy setting of the UE may indicate the accuracy at which the UE is allowed to perform ranging, and/or the accuracy at which the UE is not allowed to perform ranging. In this embodiment of the present disclosure, the "precision that allows the UE to perform ranging" may be specifically a numerical value of precision, or an interval of precision. According to the privacy settings of the UE, it can be determined what precision positioning the UE allows.

In a possible implementation, the privacy settings of the UE may be pre-stored in the core network. Privacy settings may be provided by the UE, may be agreed between the UE and the network, may be specified by the communication protocol, or may be specified by the network operator.

Whether said ranging is allowed;

The extent of the area within which said ranging is permitted;

The time range within which said ranging is allowed.

In a possible implementation, the NEF determines that the UE's privacy settings indicate that the UE is allowed to perform the ranging, and then continues with subsequent steps of ranging, such as instructing the UE to perform ranging. The NEF determines that the UE's privacy setting may indicate that the UE is not allowed to perform the ranging, and then stops subsequent steps of ranging, such as not instructing the UE to perform ranging or not performing any operation, etc.

In a possible implementation, whether the ranging is allowed may include whether the UE is authorized to allow ranging.

The time range within which ranging is allowed may be a time range within which the UE is allowed to perform ranging, including at least one of the following: a start time, an end time, and a duration within which the UE is allowed to perform ranging.

In a possible implementation, the regional scope may include at least one of the following: geographical scope, the cell to which the UE belongs, and the coverage of the base station to which the UE belongs.

In a possible implementation, NEF provides ranging services within the time range in which the UE is allowed to perform the ranging, such as instructing the UE to perform ranging within the time range in which the UE is allowed to perform the ranging.

In a possible implementation, there may be multiple UEs associated with ranging, and the ranging service parameters may be provided based on privacy settings corresponding to the multiple UEs.

For example, for ranging performed by two UEs, NEF may provide ranging services to the two UEs when the privacy settings of both UEs indicate that ranging is allowed, such as instructing the two UEs to perform ranging.

The first ranging request may be sent by the first ranging requesting end. After receiving the first ranging request, the NEF can determine the UE performing ranging, and then provide ranging services based on the privacy settings of the UE.

The first ranging request may indicate a UE requiring ranging.

NEF can instruct core network elements such as AMF to provide ranging services based on the UE's privacy settings, such as transmitting information during the ranging process, instructing the UE to perform ranging, etc.

The UE can perform ranging based on the indication of NEF, etc.

In this way, the ranging of the direct communication link is performed based on the privacy settings of the UE, which can meet the privacy requirements of the UE during the ranging process and improve the security of ranging.

In one embodiment, NEF determines the service parameters of ranging based on at least the privacy settings of the user equipment UE related to the first ranging request; wherein the first ranging request is to perform the measurement through a direct communication link. distance requests, including:

NEF receives the first ranging request sent by the application function AF;

NEF obtains the privacy settings of the UE from the unified data management UDM based on the first ranging request;

The NEF determines whether to provide the ranging service parameters according to the privacy settings.

Here, the first ranging request may be sent by the AF to the NEF. When an application in the AF has a ranging requirement, the AF sends a first ranging request to the NEF.

The privacy settings of the UE can be stored in the UDM in advance. NEF can obtain privacy settings from UDM.

NEF can query the UE's privacy settings in UDM.

In a possible implementation, the UDMs corresponding to the multiple UEs performing ranging can be the same, or the UDMs corresponding to the multiple UEs performing ranging can be completely different, or the UDMs corresponding to the multiple UEs performing ranging can be Not exactly the same.

In a possible implementation, the first ranging request from the AF to the NEF may include at least one of the following: the identity of the UE that requires ranging, the ranging results (distance and/or angle) and the required quality of service. (Quality of Service, QoS).

NEF can obtain the privacy settings of each UE from the UDM corresponding to each UE. Whether to provide ranging services is determined based on the privacy settings of each UE.

As shown in Figure 3, this exemplary embodiment provides a ranging method that can be executed by the network opening function NEF of the cellular mobile communication system, including:

Step 301: NEF determines whether the AF is allowed to request the UE to perform the ranging;

In response to the NEF determining that the ranging request function is allowed to request the ranging from the UE, the NEF determines the service parameters of the ranging according to the privacy setting of the UE related to the first ranging request; wherein the third A ranging request is a request for ranging through a direct communication link.

Step 301 can be implemented alone or in combination with step 201. That is, NEF can determine the ranging service parameters according to the solution of step 201.

The NEF may determine whether the AF is authorized to provide ranging services to the UE performing ranging in the first ranging request. If authorized by the AF to provide ranging services to the UE, the NEF provides the ranging services according to the privacy settings of the UE indicated in the first ranging request to perform ranging.

In one embodiment, NEF obtains the privacy settings of the UE from UDM based on the first ranging request, including:

The NEF determines the identity of the UE based on the UE ranging identifier of the UE carried in the first ranging request;

NEF determines the UDM corresponding to the UE based on the identity identifier;

The NEF obtains the privacy settings of the UE from the UDM corresponding to the UE.

The identity of the UE in the first ranging request may be the UE ranging ID (Ranging ID), and NEF determines the identity of the UE based on the UE ranging ID. The identity of the UE may include SUPI.

In a possible implementation, NEF may store the correspondence between the UE ranging identifier and the UE identity identifier.

In a possible implementation, the corresponding relationship may include a conversion expression between the UE ranging identifier and the UE identity identifier.

NEF can call the Nudm_SDM_Get service operation to the UDM corresponding to the UE to obtain the UE's privacy settings. UDM returns the UE's privacy settings. NEF can check UE privacy configuration. If at least one associated UE that needs to perform ranging is not allowed to perform ranging, stop providing service parameters for ranging.

In one embodiment, NEF determines the ranging service parameters according to the privacy settings of the UE related to the first ranging request, including:

In response to the privacy setting indicating the area range in which the ranging is allowed, the NEF sends location request information to the access and mobility management function AMF corresponding to the UE, where the location request information is used to send the location request information to the AMF. Request location information of the UE;

The NEF receives the location request response sent by the AMF based on the location request information, wherein the location request response includes the location information of the UE;

Based at least on the location information of the UE and the area range, the NEF determines whether the UE is allowed to perform the ranging.

If the privacy setting indicates the area range within which ranging is allowed, then NEF needs to determine whether the UE's current location falls within the area range. If the NEF determines that the UE's current location belongs to the area, the UE can be allowed to perform ranging. If NEF determines that the current location of the UE does not fall within the area range, the UE may not be allowed to perform ranging.

In a possible implementation, NEF needs to determine the locations of all UEs participating in ranging, and determine whether each UE is located in an area in which each UE is allowed to perform ranging.

The NEF can send location request information to the AMF of each UE to request the location information of the UE.

For example, NEF can call the Nudm_UECM_Get service operation to the UDM corresponding to the UE. UDM can return the network address of the UE's current serving AMF.

For example, the NEF may call the Namf_Location_ProvideLocationInfo service operation to the AMF to request the location information of the UE provided by the network.

Here, the location information may include at least one of the following: the geographical location of the UE, the cell in which the UE is located, and the base station to which the UE belongs.

In a possible implementation, the location information may be stored in the AMF during historical positioning, UE access, cell switching, etc.

In a possible implementation, the AMFs of multiple UEs performing ranging may be the same, or the AMFs of multiple UEs performing ranging may be completely different, or the AMFs of multiple UEs performing ranging may not be exactly the same. .

The AMF may return a location request response to the NEF, and the location request response may carry the location information of the UE.

Exemplarily, AMF returns a Namf_Location_ProvideLocationInfo response to NEF to return the UE location provided by the network.

After the NEF determines the location information of the UE, it can determine whether the UE is in an area where ranging is allowed, and then determine whether the UE is allowed to perform ranging.

The related information of the ranging;

Whether it is necessary to indicate the ranging related information to the UE;

Whether the ranging related information is verified by the UE;

The NEF may determine the UE authentication indication based on privacy settings. The privacy setting may instruct the UE to verify the information carried by the indication. The NEF may carry a UE verification indication in the location request information, which is used to indicate to the AMF whether only ranging-related information needs to be provided to the UE or whether ranging-related information needs to be verified by the UE.

The associated information of ranging can be used to indicate the requesting end of ranging, etc.

The application identifier of the application requesting the ranging in the AF;

The type of ranging.

Ranging can be initiated by an application in AF, and NEF can send the application identification of the application to AMF.

The NEF may instruct the AMF to send ranging associated information to the UE.

The NEF may also instruct the AMF to verify the ranging related information by the UE.

For example, the NEF may indicate to the AMF the application identifier of the application that requests ranging, and the AMF sends it to the UE for verification to determine whether the application is authorized by the UE to request ranging.

In a possible implementation, NEF may instruct AMF that there is no need to send association information to the UE. For example, the NEF may carry a UE verification indication that the association information does not need to be indicated to the UE and the association information does not need to be verified by the UE in the location request message, indicating that the AMF does not need to send the association information to the UE.

In a possible implementation, NEF can instruct AMF to send ranging related information to the UE, but it does not need to be verified by the UE. Then AMF can carry the ranging related information after receiving the ranging related information. sent to the UE in the first notification information.

In a possible implementation, the NEF may instruct the AMF to instruct the UE to send the ranging association information to the UE, and it needs to be verified by the UE. Then the AMF may, after receiving the ranging association information, instruct the UE to send the ranging association information to the UE through the second notification information. The associated information of ranging is verified. The second notification information may simultaneously indicate the ranging related information to the UE and instruct the UE to verify the ranging related information. The first notification information and the second notification information may be the same signaling.

The UE can verify the ranging related information and send the verification results to the AMF.

In a possible implementation, the verification result may include verification success or verification failure.

The AMF may send the verification results determined by the UE to the NEF.

For example, the AMF may respond to Namf_Location_ProvideLocationInfo to return the UE location provided by the network and include the verification result.

In one embodiment, NEF determines whether to allow the UE to perform the ranging based on at least the location information of the UE and the area range, including:

The NEF determines whether to allow the UE to perform the ranging based on at least the location information of the UE, the area range, and the verification result.

After the NEF determines the location information of the UE, it can determine whether the UE is in an area where ranging is allowed, and at the same time determine the verification result, and then determine whether the UE is allowed to perform ranging.

For example, NEF may determine that the UE is allowed to perform ranging when the UE is in an area where ranging is allowed and the verification result is that the verification is successful.

In a possible implementation, the verification result returned by the UE also includes a timestamp.

The NEF determines whether the UE is allowed to perform ranging based on the time range and timestamp in which ranging is allowed.

For example, if the timestamp is within the time range, the UE is allowed to perform ranging, otherwise, the UE is not allowed to perform ranging.

In a possible implementation, the time information is used to indicate the time when the UE is allowed and/or not allowed to perform ranging after the current ranging.

AMF can carry time information in the location request response and send it to NEF. The NEF may determine when the UE is and/or is not allowed to perform ranging

In one embodiment, NEF determines the ranging service parameters based on at least the privacy settings of the user equipment UE related to the first ranging request, including:

In response to determining that the UE is allowed to perform the ranging based on the privacy settings, the NEF sends a second ranging request to the AMF of the UE, where the second ranging request is used to instruct the UE to perform the ranging. Ranging.

The NEF determines that the UEs are allowed to perform ranging based on the privacy settings (for example, the NEF determines that the locations of the two UEs that are allowed to perform ranging are located within their respective areas that are allowed to perform ranging and/or determines that the two UEs that are allowed to perform ranging are determined based on the privacy settings. (all within their respective time ranges allowing ranging), the NEF may send a second ranging request to the serving AMF, instructing the AMF to provide ranging services based on the second ranging request. The serving AMF may be the AMF associated with the ranging UE.

Here, the second ranging request may be the same as the first ranging request, or may be different. The second ranging request may indicate the UE performing ranging, the required ranging results and other ranging requirements.

The serving AMF may forward the second ranging request to the UE through NAS signaling. Here, the UE may be a UE associated with ranging.

The UE performs ranging based on the second ranging request. For example, the reference UE may initiate ranging based on the direct communication link to the target UE based on the second ranging request. The ranging process may include ranging discovery and service operations.

The reference UE may send the ranging results to the serving AMF. The serving AMF forwards the ranging results to the NEF. NEF forwards the ranging results to AF to complete the ranging.

Here, the ranging result may be original measurement data such as signal flight time obtained by measuring the signal by the UE, or may be calculation results such as distance, direction, position, etc. obtained after performing techniques on the original data.

As shown in Figure 4, this exemplary embodiment provides a ranging method, which can be performed by the AMF of the cellular mobile communication system, including:

Step 401: The AMF provides ranging service parameters based on the direct communication link, wherein the ranging service parameters are performed by the NEF at least according to the privacy settings of the UE associated with the ranging.

For example, ranging can be performed on a target UE in combination with multiple UEs to determine distance and/or direction values between the target UE and the multiple UEs. The triangulation method can also be used to determine the coordinates of the target UE through the ranging results of multiple UEs and the target UE to achieve direct communication link positioning.

In a possible implementation, ranging between multiple UEs to be measured based on direct communication links can be used to determine the relationship between N UEs to be ranged among the multiple UEs to be ranged and multiple UEs to be ranged. The distance and/or direction of other UEs among the UEs to be measured can also be used to determine the positions of N UEs to be measured among multiple UEs to be measured, where N is greater than or equal to 1 and is less than or equal to UE to be measured. A positive integer that measures the total number of UEs.

Control whether the UE performs ranging;

Transmit information during the ranging process;

Determine the privacy settings of the UE;

Here, the UEs associated with the ranging may include but are not limited to UEs participating in the ranging. The UEs associated with the ranging may include but are not limited to at least one of the following: reference UE, target UE, observer UE, third-party UE, assisting UE, etc.

The type of ranging may be determined based on the number of UEs participating in ranging. For example, the types of ranging include: ranging of different numbers of UEs.

Whether said ranging is allowed;

The extent of the area within which said ranging is permitted;

The time range within which said ranging is allowed.

In a possible implementation, the NEF determines that the UE's privacy settings indicate that the UE is allowed to perform the ranging, and then continues with subsequent steps of ranging, such as instructing the UE to perform ranging. The NEF determines that the UE's privacy setting indicates that the UE is not allowed to perform the ranging, and then stops subsequent steps of ranging, such as not instructing the UE to perform ranging or not performing any operation, etc.

The first ranging request may indicate a UE requiring ranging.

The UE can perform ranging based on the indication of NEF, etc.

NEF can query the UE's privacy settings in UDM.

In a possible implementation, the NEF may determine whether the AF is allowed to request the UE to perform the ranging;

In response to determining that the AF is allowed to request the ranging from the UE, the NEF determines the service parameters for the ranging based at least on privacy settings of the UE associated with the first ranging request.

In one possible implementation,

As shown in Figure 5, this exemplary embodiment provides a ranging method, which can be performed by the AMF of the cellular mobile communication system, including:

Step 501: The AMF receives the location request information sent by the NEF, where the location request information is used to request the location information of the UE from the AMF;

Step 502: The AMF sends a location request response to the NEF, where the location request response includes the location information of the UE, where the location information of the UE is used by the NEF in combination with the area range to determine whether The UE is allowed to perform the ranging.

Exemplarily, AMF returns a Namf_Location_ProvideLocationInfo response to NEF to return the UE location provided by the network. After the NEF determines the location information of the UE, it can determine whether the UE is in an area where ranging is allowed, and then determine whether the UE is allowed to perform ranging.

The related information of the ranging;

Whether it is necessary to indicate the ranging related information to the UE;

Whether the ranging related information is verified by the UE;

The NEF may determine the UE authentication indication based on privacy settings. The privacy setting may instruct the UE to verify the information carried by the indication. The NEF may carry a UE verification indication in the location request information to indicate to the AMF whether ranging related information needs to be indicated to the UE or whether ranging related information needs to be verified by the UE.

The application identifier of the application requesting the ranging in AF;

The type of ranging.

The NEF may instruct the AMF to send ranging associated information to the UE.

In one embodiment, AMF provides service parameters based on ranging of direct communication links, including:

In response to the UE verification indication indicating that the ranging related information needs to be indicated to the UE, the AMF sends first notification information to the UE, where the first notification information is used to indicate the ranging information. Related information.

In response to the UE verification indication indicating that the UE verifies the ranging associated information, the AMF sends second notification information to the UE, where the second notification information is used to indicate that the UE is required to verify all the ranging information. Describe the relevant information of distance measurement;

The AMF receives the verification result information sent by the UE in response to the second notification information, where the verification result information is used to instruct the UE to verify the verification result of the ranging associated information;

AMF sends a location request response to the NEF, including:

The AMF sends the location request response carrying the verification result to the NEF.

In a possible implementation, the NEF can instruct the AMF to send ranging related information to the UE, and it needs to be verified by the UE. Then the AMF can, after receiving the ranging related information, instruct the UE to verify the ranging information through the second notification information. Verify the distance associated information. The second notification information may simultaneously indicate the ranging related information to the UE and instruct the UE to verify the ranging related information. The first notification information and the second notification information may be the same signaling.

The AMF may send the verification results determined by the UE to the NEF.

As shown in Figure 6, this exemplary embodiment provides a ranging method, which can be performed by the AMF of the cellular mobile communication system, including:

Step 601: In response to the AMF determining that the UE needs to send the verification result information and not receiving the verification result information, the AMF determines that the verification result is that the UE failed to verify the ranging associated information.

Step 601 can be implemented alone or in combination with step 401, step 501 and/or step 502.

If the AMF instructs the UE to verify the ranging associated information and determines that the UE needs to return verification result information, then the verification result information is not received within the expected reception period, the AMF may determine that the UE failed to verify the ranging associated information. The failure of the UE to verify the related information of ranging may include: the UE does not verify the related information of ranging, and/or the related information of ranging is not authorized by the UE.

In a possible implementation, NEF determines whether to allow the UE to perform the ranging based on at least the location information of the UE, the area range, and the verification result.

For example, NEF may determine that the UE is allowed to perform ranging when the UE is in an area where ranging is allowed and the verification result is successful.

The sending a location request response to the NEF includes:

Send the location request response carrying the time information to the NEF.

The AMF receives the second ranging request sent by the NEF, wherein the second ranging request is determined by the NEF to allow the UE to perform the ranging transmission based on the privacy setting;

The AMF instructs the UE to perform the ranging based on the second ranging request.

As shown in Figure 7, this exemplary embodiment provides a ranging method that can be performed by a UE in a cellular mobile communication system, including:

Step 701: The UE performs ranging based on the direct communication link, where the ranging is performed by NEF at least according to the instructions of the privacy setting of the UE.

It should be noted that all features that have been defined on the AMF side have a complete one-to-one correspondence on the UE side; therefore, the corresponding explanations will not be repeated in the embodiments on the UE side.

As shown in Figure 8, this exemplary embodiment provides a ranging method that can be performed by a UE of a cellular mobile communication system, including:

Step 801: The UE receives the first notification information sent by the AMF, where the first notification information is used to indicate the associated information of the ranging; wherein the first notification information is the AMF based on the NEF The UE verification indication carried in the sent location request information is sent, wherein the UE verification indication is determined by the NEF based on the privacy setting.

Step 801 can be implemented alone or in combination with step 701.

It should be noted that all explanations corresponding to the AMF side will not be repeatedly defined in the embodiments on the UE side.

As shown in Figure 9, this exemplary embodiment provides a ranging method that can be performed by a UE in a cellular mobile communication system, including:

Step 901: The UE receives the second notification information sent by the AMF, where the second notification information is used to indicate that the UE verifies the ranging association information, where the second notification information is the The AMF is sent based on the UE verification indication carried in the location request information sent by the NEF, where the UE verification indication is determined by the NEF based on the privacy setting.

As shown in Figure 10, this exemplary embodiment provides a ranging method that can be performed by a UE in a cellular mobile communication system, including:

Step 1001: The UE sends verification result information to the AMF, where the verification result information is used to instruct the UE to verify the verification result of the ranging associated information.

The AMF may send the verification results determined by the UE to the NEF.

As shown in Figure 11, this exemplary embodiment provides a ranging method, which can be performed by a UE of a cellular mobile communication system, including one of the following:

Step 1101a: In response to the failure to verify the ranging associated information, do not send verification result information to the AMF;

Step 1101b: In response to the failure to verify the ranging associated information, send verification result information indicating that the verification result is a verification failure to the AMF.

A specific example is provided below in combination with any of the above embodiments:

Assume that UE1 is managed by AMF1 and UDM1, and UE2 is managed by AMF2 and UDM2. If UE1 and UE2 are served by the same network function, no distinction is made between AMF or UDM, i.e. AMF1 is the same as AMF2 or UDM1 is the same as UDM2. As shown in Figure 12, the ranging method specifically includes:

Step 1201: Provide service authorization policy/parameters to UE1 and UE2.

Step 1202: AF sends a ranging (Ranging)/SL positioning service request (i.e., the first ranging request) to NEF, including UE1 ID, UE2 ID, ranging result content (distance, angle, or both) and required QoS, etc. .

Step 1203: NEF checks whether the AF is authorized to provide ranging/SL positioning services (ie, ranging services) to UE1 and UE2. If the AF is authorized to obtain ranging/SL positioning services, NEF can obtain the identity of the UE based on the UE's ranging ID (ie, the UE ranging identification). For example, NEF converts the UE's ranging ID into the UE's identity (such as SUPI) and selects the UDM corresponding to the UE. NEF uses the Nudm_SDM_Get service operation to the UDM of UE1/UE2 to obtain the UE's privacy settings. UDM returns the privacy settings of UE1/UE2. NEF then checks the UE ranging privacy settings. If both UE1 and UE2 are not authorized to perform ranging/SL positioning, or one of UE1 and UE2 is not authorized to perform ranging/SL positioning, then steps 1204 to 1212 are skipped.

UE1 may be a target UE or a reference UE, which may be determined according to the AF request or in step 1210.

If UE1 and UE2 are managed by different UDMs, NEF should send Nudm_SDM_Get messages to the corresponding UDMs respectively.

Step 1204: NEF calls the Nudm_UECM_Get service operation to the UDM of UE1/UE2. UDM returns the network address of the current serving AMF of UE1/UE2.

Step 1205: If any UE is granted limited permission in a certain area (that is, the area range that allows the ranging), NEF calls Namf_Location_ProvideLocationInfo to AMF to request a service operation (that is, sends location request information to UDM) , to request the UE location provided by the network. The location request information can also carry the privacy check result (UE verification indication) in step 1203, which may include an indication that the AF provides the application's identity code and privacy-related actions (i.e., no action (no need to notify the UE of the application's identity code and other information) ), notification (the UE needs to be notified of the application's identity code and other information), notification and privacy verification, etc. (the UE needs to be notified of the application's identity code and other information, and the UE is required to verify the application's identity code and other information)).

Step 1206a: If the indicator of the privacy check related operation (UE verification indication) indicates that the UE must be notified) or the UE is notified for privacy verification and if the UE supports Ranging notification (according to UE capability information), the AMF sends a notification call message to UE1/UE2 : NAS location notification call request (second notification information), indicating the identity code of the application and whether privacy verification is required.

Step 1206b: UE1/UE2 returns the notification result to the AMF: the NAS location notification return result (verification result information) indicates whether the privacy verification is passed and whether the current Ranging request is allowed or rejected. If the UE does not respond after a predetermined period of time, the AMF returns an error response to the NEF, and the response carries the "no response" parameter.

The notification result may also include Ranging Privacy Indication (for example: time information); that is, whether UE1/UE2 allows subsequent ranging requests. The ranging privacy indication may also indicate a point in time at which subsequent ranging requests are not allowed.

Step 1207: AMF returns a Namf_Location_ProvideLocationInfo response (ie, location request response) to NEF to return the UE location provided by the network. The location request response may also include ranging privacy indication.

Step 1208: NEF checks whether UE1/UE2 is within the area where the Ranging service is allowed based on the location of UE1/UE2 provided by the network. If the location and time provided by the network meet the privacy requirements, the NEF forwards the ranging/SL positioning service request (second ranging request) to the serving AMF.

Step 1209: AMF forwards the ranging/SL positioning service request to UE1 or UE2 through NAS signaling.

Step 1210: UE1 and UE2 jointly perform the ranging/SL positioning process to perform measurements and result calculations. The ranging/SL positioning process includes ranging/SL positioning discovery and service operations.

Step 12011: UE1 or UE2 sends the ranging/SL positioning result (ranging result) to the AMF.

Step 12012: AMF forwards the ranging/SL positioning results to NEF.

Step 12013: NEF forwards ranging/SL positioning results to AF.

An embodiment of the present invention also provides a ranging device, as shown in Figure 13, applied in NEF of cellular mobile wireless communications, wherein the device 100 includes:

The processing module 110 is configured to determine the service parameters of ranging based on at least the privacy settings of the user equipment UE related to the first ranging request; wherein the first ranging request is to perform the ranging through a direct communication link request.

In one embodiment, the device further includes a transceiver module 120 configured to receive the first ranging request sent by the application function AF;

The processing module 110 is specifically configured to obtain the privacy settings of the UE from the unified data management UDM based on the first ranging request; and determine whether to provide the ranging service parameters according to the privacy settings.

It should be noted that the ranging device is used to perform the ranging method performed by NEF as described in any of the previous embodiments, so its function will not be described again.

An embodiment of the present invention also provides a ranging device, as shown in Figure 14, applied in AMF of cellular mobile wireless communications, wherein the device 200 includes:

The transceiver module 210 is configured to provide ranging service parameters based on the direct communication link, wherein the ranging service parameters are determined by the network opening function NEF at least according to the privacy settings of the user equipment UE associated with the ranging. directed.

An embodiment of the present invention also provides a ranging device, as shown in Figure 15, applied to UE in cellular mobile wireless communications, wherein the device 300 includes:

The processing module 310 is configured to perform ranging based on the direct communication link, wherein the ranging is performed at least according to instructions of the network opening function NEF according to the privacy settings of the UE.

In one embodiment, the device further includes:

The transceiver module 320 is configured to: receive the first notification information sent by the access and mobility management function AMF, where the first notification information is used to indicate the associated information of the ranging; wherein the first notification The information is sent by the AMF based on the UE verification indication carried in the location request information sent by the NEF, wherein the UE verification indication is determined by the NEF based on the privacy setting.

It should be noted that the ranging device is used to perform the ranging method performed by the UE as described in any of the previous embodiments, so its function will not be described again.

In an exemplary embodiment, the processing module 110, the transceiver module 120, the transceiver module 210, the processing module 310, the transceiver module 320, etc. may be processed by one or more central processing units (CPU, Central Processing Unit), graphics processing units (GPU, Graphics Processing Unit), baseband processor (BP, Baseband Processor), application specific integrated circuit (ASIC, Application Specific Integrated Circuit), DSP, programmable logic device (PLD, Programmable Logic Device), complex programmable logic device (CPLD, Complex Programmable Logic Device), Field-Programmable Gate Array (FPGA, Field-Programmable Gate Array), general-purpose processor, controller, microcontroller (MCU, Micro Controller Unit), microprocessor (Microprocessor), or other electronic components Implementation, used to execute the aforementioned methods.

FIG. 16 is a block diagram of a device 3000 for ranging according to an exemplary embodiment. For example, the device 3000 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, or the like.

Referring to Figure 16, device 3000 may include one or more of the following components: processing component 3002, memory 3004, power supply component 3006, multimedia component 3008, audio component 3010, input/output (I/O) interface 3012, sensor component 3014, and Communication Component 3016.

Processing component 3002 generally controls the overall operations of device 3000, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 3002 may include one or more processors 3020 to execute instructions to complete all or part of the steps of the above method. Additionally, processing component 3002 may include one or more modules that facilitate interaction between processing component 3002 and other components. For example, processing component 3002 may include a multimedia module to facilitate interaction between multimedia component 3008 and processing component 3002.

Memory 3004 is configured to store various types of data to support operations at device 3000. Examples of such data include instructions for any application or method operating on device 3000, contact data, phonebook data, messages, pictures, videos, etc. Memory 3004 may be implemented by any type of volatile or non-volatile storage device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EEPROM), Programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.

Power supply component 3006 provides power to the various components of device 3000. Power supply components 3006 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to device 3000 .

Multimedia component 3008 includes a screen that provides an output interface between device 3000 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. A touch sensor can not only sense the boundaries of a touch or swipe action, but also detect the duration and pressure associated with the touch or swipe action. In some embodiments, multimedia component 3008 includes a front-facing camera and/or a rear-facing camera. When the device 3000 is in an operating mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

Audio component 3010 is configured to output and/or input audio signals. For example, audio component 3010 includes a microphone (MIC) configured to receive external audio signals when device 3000 is in operating modes, such as call mode, recording mode, and speech recognition mode. The received audio signals may be further stored in memory 3004 or sent via communications component 3016 . In some embodiments, audio component 3010 also includes a speaker for outputting audio signals.

The I/O interface 3012 provides an interface between the processing component 3002 and a peripheral interface module. The peripheral interface module may be a keyboard, a click wheel, a button, etc. These buttons may include, but are not limited to: Home button, Volume buttons, Start button, and Lock button.

Sensor component 3014 includes one or more sensors for providing various aspects of status assessment for device 3000 . For example, the sensor component 3014 can detect the open/closed state of the device 3000, the relative positioning of components, such as the display and keypad of the device 3000, the sensor component 3014 can also detect the position change of the device 3000 or a component of the device 3000, the user The presence or absence of contact with device 3000, device 3000 orientation or acceleration/deceleration, and temperature changes of device 3000. Sensor assembly 3014 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 3014 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor component 3014 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 3016 is configured to facilitate wired or wireless communication between the apparatus 3000 and other devices. Device 3000 may access a wireless network based on a communication standard, such as Wi-Fi, 2G or 3G, or a combination thereof. In one exemplary embodiment, the communication component 3016 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communications component 3016 also includes a near field communications (NFC) module to facilitate short-range communications. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

In an exemplary embodiment, apparatus 3000 may be configured by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable Gate array (FPGA), controller, microcontroller, microprocessor or other electronic components are implemented for executing the above method.

In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions, such as a memory 3004 including instructions, which can be executed by the processor 3020 of the device 3000 to complete the above method is also provided. For example, non-transitory computer-readable storage media may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.

Other implementations of the embodiments of the invention will be readily apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the embodiments of the present invention that follow the general principles of the embodiments of the present invention and include those in the technical field not disclosed by the disclosed embodiments. Common knowledge or common technical means. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the embodiments of the invention being indicated by the following claims.

It is to be understood that the embodiments of the present invention are not limited to the precise structures described above and illustrated in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of embodiments of the invention is limited only by the appended claims.

Claims

A ranging method, performed by the Network Open Function NEF, includes:

Determine the service parameters of ranging based on at least the privacy setting of the user equipment UE related to the first ranging request; wherein the first ranging request is a request to perform the ranging through a direct communication link.
The method of claim 1, wherein the privacy setting is used to indicate at least one of the following:

Whether said ranging is allowed;

The extent of the area within which said ranging is permitted;

The time range within which said ranging is allowed.
The method according to claim 2, wherein the service parameters of ranging are determined at least according to the privacy settings of the user equipment UE related to the first ranging request; wherein the first ranging request is through direct connection communication The request for the link to perform the ranging includes:

Receive the first ranging request sent by the application function AF;

Based on the first ranging request, obtain the privacy settings of the UE from the unified data management UDM;

Determine whether to provide the ranging service parameters according to the privacy settings.
The method of claim 3, wherein the method further comprises: determining whether the AF is allowed to request the ranging from the UE;

In response to determining that the AF is allowed to request the ranging from the UE, the service parameters for the ranging are determined based on at least privacy settings of the UE associated with the first ranging request.
The method according to claim 3, wherein said obtaining the privacy settings of the UE from UDM based on the first ranging request includes:

Determine the identity of the UE based on the UE ranging identifier of the UE carried in the first ranging request;

Determine the UDM corresponding to the UE based on the identity identifier;

Obtain the privacy settings of the UE from the UDM corresponding to the UE.
The method according to claim 3, wherein the determining service parameters of ranging based on at least privacy settings of the user equipment UE related to the first ranging request includes:

In response to the privacy setting indicating the area range within which the ranging is allowed, sending location request information to the access and mobility management function AMF of the UE, wherein the location request information is used to request the AMF for the range. The location information of the UE;

Receive a location request response sent by the AMF based on the location request information, wherein the location request response includes the location information of the UE;

Based on at least the location information of the UE and the area range, it is determined whether the UE is allowed to perform the ranging.
The method according to claim 6, wherein the location request information further includes a UE verification indication for indicating at least one of the following:

The related information of the ranging;

Whether it is necessary to indicate the ranging related information to the UE;

Whether the ranging related information is verified by the UE;

Wherein, the UE verification indication is set by the NEF based on the privacy setting.
The method according to claim 7, wherein the ranging related information includes at least one of the following:

The application identifier of the application requesting the ranging in the AF;

The type of ranging.
The method of claim 7, wherein

The location request response also includes: a verification result of the UE verifying the association information.
The method according to claim 9, wherein the determining whether to allow the UE to perform the ranging based on at least the location information of the UE and the area range includes:

Based on at least the location information of the UE, the area range, and the verification result, it is determined whether the UE is allowed to perform the ranging.
The method of claim 6, wherein

The location request response also includes time information used to indicate the time when the UE allows and/or does not allow ranging.
The method according to any one of claims 3 to 11, wherein the determining service parameters of ranging based on at least the privacy settings of the user equipment UE related to the first ranging request includes:

In response to determining that the UE is allowed to perform the ranging based on the privacy setting, sending a second ranging request to the AMF of the UE, the second ranging request being used to instruct the UE to perform the ranging. distance.
A ranging method, which is performed by the access and mobility management function AMF, including:

Service parameters for ranging based on the direct communication link are provided, wherein the service parameters for ranging are indicated by the network opening function NEF at least according to the privacy settings of the user equipment UE associated with the ranging.
The method of claim 13, wherein the privacy setting is used to indicate at least one of the following:

Whether said ranging is allowed;

The extent of the area within which said ranging is permitted;

The time range within which said ranging is allowed.
The method of claim 14, wherein the privacy settings are located in a Unified Data Management UDM of the UE.
The method of claim 14, wherein the method further includes:

Receive location request information sent by the NEF, wherein the location request information is used to request the location information of the UE from the AMF;

Send a location request response to the NEF, where the location request response includes location information of the UE, where the location information of the UE is used for the NEF to determine whether to allow the UE in combination with the area range. Perform the ranging.
The method according to claim 16, wherein the location request information further includes a UE verification indication for indicating at least one of the following:

The related information of the ranging;

Whether it is necessary to indicate the ranging related information to the UE;

Whether the ranging related information is verified by the UE;

Wherein, the UE verification indication is set by the NEF based on the privacy setting.
The method according to claim 17, wherein the ranging related information includes at least one of the following:

The application identifier of the application requesting the ranging in AF;

The type of ranging.
The method according to claim 17, wherein said providing service parameters based on ranging of a direct communication link includes:

In response to the UE verification indication indicating that the ranging association information needs to be indicated to the UE, sending first notification information to the UE, where the first notification information is used to indicate the ranging association. information.
The method according to claim 17, wherein said providing service parameters based on ranging of a direct communication link includes:

In response to the UE verification indication indicating that the UE verifies the ranging association information, sending second notification information to the UE, wherein the second notification information is used to indicate that the UE needs to verify the ranging information. Ranging related information;

Receive verification result information sent by the UE in response to the second notification information, wherein the verification result information is used to instruct the UE to verify the verification result of the ranging associated information;

The sending a location request response to the NEF includes:

Send the location request response carrying the verification result to the NEF.
The method of claim 20, wherein the method further includes:

In response to determining that the UE needs to send the verification result information and the verification result information is not received, it is determined that the verification result is that the UE fails to verify the ranging associated information.
The method of claim 20, wherein:

The verification result information also includes time information, used to indicate the time when the UE allows and/or does not allow ranging;

The sending a location request response to the NEF includes:

Send the location request response carrying the time information to the NEF.
The method according to any one of claims 13 to 22, wherein the service parameters for ranging based on direct communication links include:

Receive a second ranging request sent by the NEF, wherein the second ranging request is determined by the NEF to allow the UE to perform the ranging sending based on the privacy setting;

Based on the second ranging request, the UE is instructed to perform the ranging.
A ranging method, which is performed by the user equipment UE to be ranged, includes:

Ranging based on the direct communication link is performed, wherein the ranging is performed as instructed by the network opening function NEF at least according to the privacy settings of the UE.
The method of claim 24, wherein the privacy setting is used to indicate at least one of the following:

Whether said ranging is allowed;

The extent of the area within which said ranging is permitted;

The time range within which said ranging is allowed.
The method of claim 24, wherein the privacy setting is located in a UDM corresponding to the UE.
The method of claim 25, wherein the method further includes:

Receive first notification information sent by the access and mobility management function AMF, wherein the first notification information is used to indicate the associated information of the ranging; wherein the first notification information is based on the AMF The UE verification indication carried in the location request information sent by the NEF is sent, wherein the UE verification indication is determined by the NEF based on the privacy setting.
The method of claim 25, wherein the method further includes:

Receive second notification information sent by the AMF, where the second notification information is used to indicate that the UE verifies the association information of the ranging, where the second notification information is the AMF based on the The UE verification indication carried in the location request information sent by the NEF is sent, wherein the UE verification indication is determined by the NEF based on the privacy setting.
The method of claim 28, wherein the method further includes:

Send verification result information to the AMF, where the verification result information is used to instruct the UE to verify the verification result of the ranging associated information.
The method of claim 29, wherein:

The verification result information also includes time information, which is used to indicate the time when the UE allows and/or does not allow ranging.
The method of claim 29, wherein the method further includes one of the following:

In response to a failure to verify the ranging associated information, do not send verification result information to the AMF;

In response to the failure to verify the ranging associated information, verification result information indicating that the verification result is a verification failure is sent to the AMF.
The method according to any one of claims 27 to 31, wherein the location request information includes a UE verification indication, wherein the UE verification indication is used to indicate at least one of the following:

The related information of the ranging;

Whether it is necessary to indicate the ranging related information to the UE;

Whether the ranging related information is verified by the UE;

Wherein, the UE verification indication is set by the NEF based on the privacy setting.
The method according to any one of claims 27 to 31, wherein the ranging related information includes at least one of the following:

The application identifier of the application requesting the ranging in AF;

The type of ranging.
The method according to any one of claims 24 to 31, wherein the ranging is performed by the ranging service AMF receiving a second ranging request sent by the NEF to instruct the UE, wherein the second ranging is The ranging request is determined by the NEF to allow the UE to perform the ranging transmission based on the privacy setting.
A distance measuring device, which includes:

A processing module configured to determine the service parameters of ranging based on at least the privacy settings of the user equipment UE related to the first ranging request; wherein the first ranging request is to perform the ranging through a direct communication link. ask.
A distance measuring device, which includes:

A transceiver module configured to provide ranging service parameters based on the direct communication link, wherein the ranging service parameters are indicated by a network open function NEF at least according to the privacy settings of the user equipment UE associated with the ranging. ongoing.
A distance measuring device, which includes:

The processing module is configured to perform ranging based on the direct communication link, wherein the ranging is performed at least as indicated by the network opening function NEF according to the privacy settings of the user equipment UE.
A communication equipment device, including a processor, a memory, and an executable program stored in the memory and capable of being run by the processor, wherein when the processor runs the executable program, it executes claims 1 to 12, Or the steps of the ranging method described in any one of 13 to 23, or 24 to 34.
A storage medium on which an executable program is stored, wherein when the executable program is executed by a processor, the ranging method as described in any one of claims 1 to 12, or 13 to 23, or 24 to 34 is implemented. A step of.