CN115997434A

CN115997434A - Positioning sensing method, device, equipment, storage medium and chip

Info

Publication number: CN115997434A
Application number: CN202280004066.0A
Authority: CN
Inventors: 吴锦花
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2022-10-14
Filing date: 2022-10-14
Publication date: 2023-04-21
Also published as: WO2024077617A1

Abstract

The present disclosure relates to a positioning sensing method, apparatus, device, storage medium and chip, the method comprising: and receiving a positioning sensing request sent by a sensing request end, wherein the positioning sensing request is used for sensing attribute information of user equipment, sending the positioning sensing request to a mobile positioning center Gateway (GMLC), indicating a sensing willingness of the GMLC positioning sensing request to feed back the user equipment, and sending the sensing willingness to the sensing request end in response to the sensing willingness fed back by the GMLC. By the method, the SAF network element is applied to receive the positioning sensing request of the sensing request end, and the sensing request end can provide positioning sensing service for the UE according to the sensing request of the UE based on the positioning service LCS framework.

Description

Positioning sensing method, device, equipment, storage medium and chip

Technical Field

The disclosure relates to the field of communication positioning, and in particular relates to a positioning sensing method, a positioning sensing device, positioning sensing equipment, a storage medium and a chip.

Background

Wireless sensing technology aims at acquiring relevant characteristic information of a remote object without physical contact, and meaningful data information such as object characteristics can be obtained by analyzing perception data of the object and surrounding thereof. For example, radar is a widely used wireless sensing technology that uses radio waves to determine the distance, angle, or instantaneous linear velocity of an object, etc.

Integrated sensing and communication in a 3GPP (3 rd Generation Partnership Project, third generation partnership project) 5G system means that sensing capability is provided by a 5G NR wireless communication system and related infrastructure for communication, and sensing information may be obtained by radio frequency sensors and/or non-radio frequency based sensors. Integrated sensing and communication may involve: (1) Communication-assisted sensing scenarios, for example, providing sensing services to UEs (User Equipment) through a 5G communication system; (2) The context of sensor assisted communication, such as improving the communication services of 5G systems by means of communication channels or environment related sensor information, wherein the sensor information may be used to assist in radio resource management, interference suppression management, beam management, mobility management, etc.

In a number of market segments and vertical areas, wireless communication based sensing services may provide assistance for intelligent transportation, aviation, enterprises, smart cities, smart homes, factories, consumer applications, XR (Extended Range), and public management departments. The mobile operator can play an important role in providing 5 GS-based integrated sensing and communication for clients, including management and control based on 5G sensing service, and the like, and particularly, the sensing service can provide technical support for the aspects of sensing of infrastructure auxiliary environments, remote control driving based on the infrastructure, high-definition map acquisition and sharing, remote control driving and the like.

In the related art, a Mobile network may support a location service function of a UE, be able to identify and report a current location of the UE in a standard format (e.g., geographical coordinates, location information, etc.), and provide the location information to a user, an ME (Mobile Equipment), a network operator, a service provider, a value added service provider, and a PLMN (Public Land Mobile Network ), etc. for internal operation. But the services such as intelligent control, intelligent transportation, XR, unmanned operation and the like cannot be supported only based on the position information, so that providing a sensing solution in the mobile network makes the mobile network capable of providing sensing service for the UE become a technical problem to be solved urgently.

Disclosure of Invention

In order to overcome the problems in the related art, the present disclosure provides a positioning sensing method, a device, an apparatus, a storage medium, and a chip.

According to a first aspect of an embodiment of the present disclosure, there is provided a positioning and sensing method applied to a sensing application function SAF network element, the method including:

receiving a positioning sensing request sent by a sensing request end, wherein the positioning sensing request is used for sensing attribute information of user equipment;

transmitting the location sensing request to a mobile location center Gateway (GMLC), wherein the location sensing request is used for indicating the GMLC to feed back the sensing willingness of the user equipment according to the location sensing request;

And responding to the sensing willingness fed back by the GMLC, and sending the sensing willingness to the sensing request end.

According to a second aspect of embodiments of the present disclosure, there is provided a location awareness method applied to a mobile location center gateway, GMLC, the method comprising:

receiving a positioning sensing request sent by a sensing application function SAF network element, wherein the positioning sensing request is used for sensing attribute information of user equipment;

under the condition that the user equipment allows positioning sensing, sending the positioning sensing request to an access and mobility management function (AMF) network element;

receiving sensing information sent by the AMF network element;

generating a perception willingness of the user equipment according to the perception information;

and sending the perception willingness to the perception request end.

According to a third aspect of embodiments of the present disclosure, there is provided a positioning awareness method applied to a user equipment, the method including:

acquiring notification calling information sent by an access and mobility management function (AMF) network element, wherein the notification calling information is sent by the AMF network element under the condition of receiving a positioning sensing request sent by a mobile positioning center Gateway (GMLC), and the positioning sensing request is used for sensing attribute information of the user equipment;

Responding to the selection result of the user on the notification calling information, and generating a perception privacy indication;

and sending the perceived privacy indication to the AMF network element, wherein the perceived privacy indication is used for indicating the perceived willingness of the user equipment.

According to a fourth aspect of embodiments of the present disclosure, there is provided a positioning sensing device applied to a sensing application function SAF network element, the device including:

the receiving module is configured to receive a positioning sensing request sent by a sensing request end, wherein the positioning sensing request is used for sensing attribute information of user equipment;

a sending module configured to send the location awareness request to a mobile location center gateway GMLC, where the location awareness request is used to instruct the GMLC that the location awareness request feeds back an awareness of the user equipment;

and the execution module is configured to respond to the perceived willingness fed back by the GMLC and send the perceived willingness to the perceived request end.

According to a fifth aspect of embodiments of the present disclosure, there is provided a location awareness apparatus for use in a mobile location center gateway, GMLC, the apparatus comprising:

the first receiving module is configured to receive a positioning sensing request sent by a sensing application function SAF network element, wherein the positioning sensing request is used for sensing attribute information of user equipment;

A first sending module configured to send the location awareness request to an access and mobility management function AMF network element if the user equipment allows location awareness;

the second receiving module is configured to receive the perception information sent by the AMF network element;

the generation module is configured to generate the perception willingness of the user equipment according to the perception information;

and the second sending module is configured to send the perception willingness to the perception request end.

According to a sixth aspect of embodiments of the present disclosure, there is provided a positioning awareness apparatus, applied to a user equipment, the apparatus comprising:

the acquisition module is configured to acquire notification calling information sent by an access and mobility management function (AMF) network element, wherein the notification calling information is sent by the AMF network element under the condition of receiving a positioning sensing request sent by a mobile positioning center Gateway (GMLC), and the positioning sensing request is used for sensing attribute information of the user equipment;

the generation module is configured to respond to the selection result of the notification calling information by the user and generate a perception privacy indication;

and the sending module is configured to send the perceived privacy indication to the AMF network element, wherein the perceived privacy indication is used for indicating the perceived willingness of the user equipment.

According to a seventh aspect of embodiments of the present disclosure, there is provided a aware application function SAF network element, comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to implement the steps of the method of any one of the first aspects of the present disclosure when executing the executable instructions.

According to an eighth aspect of the embodiments of the present disclosure, there is provided a mobile location center gateway, GMLC, comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to implement the steps of the method of any one of the second aspects of the present disclosure when executing the executable instructions.

According to a ninth aspect of embodiments of the present disclosure, there is provided a user equipment, comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to implement the steps of the method of any of the third aspects of the present disclosure when executing the executable instructions.

According to a tenth aspect of the embodiments of the present disclosure, there is provided a computer readable storage medium having stored thereon computer program instructions which when executed by a processor perform the steps of the method of any of the first aspects, or which when executed by a processor perform the steps of the method of any of the second aspects, or which when executed by a processor perform the steps of the method of any of the third aspects.

According to an eleventh aspect of embodiments of the present disclosure, there is provided a chip comprising a processor and an interface; the processor is to read instructions to perform the method of any of the first aspects, or the processor is to read instructions to perform the method of any of the second aspects, or the processor is to read instructions to perform the method of any of the third aspects.

In the above technical solution, a location awareness request sent by an awareness request end is received, the location awareness request is used for perceiving attribute information of a user device, the location awareness request is sent to a mobile location center gateway GMLC, the location awareness request is used for indicating the GMLC to feed back an awareness willingness of the user device according to the location awareness request, and the awareness willingness is sent to the awareness request end. By the method, the SAF network element is applied to receive the positioning sensing request of the sensing request end, and the sensing request end can provide positioning sensing service for the UE according to the sensing request of the UE based on the positioning service LCS framework.

Drawings

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

Fig. 1 is a flow chart illustrating a location awareness method according to an exemplary embodiment.

Fig. 2 is a block diagram illustrating an LCS aware service architecture according to an example embodiment.

FIG. 3 is a flow chart illustrating a location awareness method according to an exemplary embodiment.

Fig. 4 is a flow chart illustrating a location awareness method according to an example embodiment.

Fig. 5 is a flow chart illustrating a location awareness method according to an example embodiment.

Fig. 6 is a flow chart illustrating a location awareness method according to an example embodiment.

Fig. 7 is a flow chart illustrating a location awareness method according to an example embodiment.

Fig. 8 is a flow chart illustrating a location awareness method according to an example embodiment.

Fig. 9 is a flow chart illustrating a location awareness method according to an example embodiment.

Fig. 10 is a flow chart illustrating a location awareness method according to an example embodiment.

FIG. 11 is a flowchart illustrating a location awareness method according to an example embodiment.

Fig. 12 is a flow chart illustrating a location awareness method according to an example embodiment.

FIG. 13 is a block diagram illustrating a location awareness system according to an example embodiment.

Fig. 14 is a flow chart illustrating a location awareness method according to an example embodiment.

Fig. 15 is a block diagram illustrating a location-aware device according to an example embodiment.

Fig. 16 is a block diagram illustrating a location-aware device according to an example embodiment.

Fig. 17 is a block diagram illustrating a location-aware device according to an example embodiment.

Fig. 18 is a block diagram illustrating a location-aware device according to an example embodiment.

Fig. 19 is a block diagram illustrating a location-aware device according to an example embodiment.

Fig. 20 is a block diagram illustrating a location-aware device according to an example embodiment.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims.

It is understood that the term "plurality" in this disclosure means two or more, and other adjectives are similar thereto. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship. The singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It will be further understood that although operations are depicted in the drawings in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. In certain circumstances, multitasking and parallel processing may be advantageous.

It should be noted that, all actions for acquiring signals, information or data in the present application are performed under the condition of conforming to the corresponding data protection rule policy of the country of the location and obtaining the authorization given by the owner of the corresponding device.

Fig. 1 is a flowchart illustrating a location awareness method according to an exemplary embodiment, and as shown in fig. 1, the method is applied to an SAF (Sensing Application Function, awareness application function) network element, and includes the following steps.

In step S101, a location awareness request sent by an awareness requesting end is received, where the location awareness request is used to perceive attribute information of a user device.

It should be noted that the present embodiment may be applied to a wireless communication network, through which a communication auxiliary sensing service based on a corresponding UE is provided for a sensing request end, and the communication auxiliary sensing service may be applied to the following scenarios, by way of example: (1) environmental real-time monitoring: reconstructing an environment map by utilizing wireless signals, improving the positioning precision of the UE, and enabling environment-related applications, such as a series of real-time monitoring-related applications including dynamic 3D maps for driving assistance, pedestrian traffic statistics, intrusion detection, traffic detection and the like; (2) autonomous vehicles or drones: the automatic driving vehicle or the unmanned aerial vehicle has the functional requirement of communication auxiliary sensing, for example, the automatic driving vehicle or the unmanned aerial vehicle should support detection and avoidance of obstacles, and meanwhile, the automatic driving vehicle or the unmanned aerial vehicle should have the capability of monitoring path information, such as determining the current road section vehicle condition according to the perception auxiliary data, so as to select a proper route and observe the traffic rules; (3) air pollution monitoring: the received wireless signal quality presents different attenuation characteristics along with the changes of air humidity, air Particulate Matter (PM) concentration, carrier frequency and the like, and can be used for weather or air quality detection; (4) indoor healthcare and intrusion detection: the wireless communication signals of the UE can be analyzed to realize the respiratory rate estimation, respiratory depth estimation, apnea detection, vital sign monitoring, indoor intrusion detection and the like of the user; (5) Sensing of wireless communication channels and environments may further improve performance of the communication system, for example: sensing the position and the channel environment of the UE, reducing the beam scanning range and shortening the beam training time; sensing the position, speed, motion track and channel environment of the UE to perform beam prediction, and reducing the overhead of beam measurement and the delay of beam tracking; the attribute of the UE and the channel environment are perceived to improve the performance of channel estimation, etc. The embodiment provides a perception solving method, so that a mobile network can provide a perception service for the UE, and the application scene is realized based on the perception service.

The embodiment is applied to an SAF network element, which is used for receiving a positioning sensing request of a sensing request end, wherein the sensing request end is a terminal device which needs to acquire sensing information of a sensing object (such as an unmanned vehicle, a mobile phone, an intelligent household appliance and the like), and the terminal device can be a server of a road manager, a server of the intelligent household appliance manager and the like. Wherein, the sensing object is configured with a positioning sensing protocol, and when being requested to perform positioning sensing, the sensing object can be a UE equipped with 3GPP (3 rd Generation Partnership Project, third generation partnership project) by sending corresponding positioning sensing data to a sensing request end based on the positioning sensing protocol. The SAF network element and the sensing request end can perform wireless communication, and are used for receiving a positioning sensing request sent by the sensing request end, wherein the positioning sensing request comprises identification information of the UE, and the sensing request end requests to sense related attribute information of the UE, the sensing request end can determine the position information, the speed information, the direction information, the shape information, the environment information of the environment where the UE is located and the like of the UE through the attribute information, and the sensing request end can determine the attribute of the UE and the environment attribute of the environment where the UE is located based on the attribute information fed back by the UE.

Optionally, the attribute information includes: at least one of location information, speed information, shape information, size information, or direction information of the user equipment.

For example, in this embodiment, the sensing request end sends a positioning sensing willingness through the SAF network element, and the user obtains attribute information of the UE, for example, in an application scenario of automatic driving control, the sensing request end may be a server corresponding to a road manager, where the UE is configured with a 3GPP monitoring device on an automatic driving vehicle, so that, for convenience in road management direction, the running state of the automatic driving vehicle needs to be monitored, and information such as a speed, a direction, a position, a mileage, a vehicle size, and the like of the automatic driving vehicle needs to be obtained, so as to monitor the automatic driving vehicle. The server corresponding to the road management side sends a positioning sensing request to the SAF network element, positioning sensing service is assisted through the mobile network, and attribute information of the UE is determined according to sensing information fed back by the mobile network, wherein the attribute information comprises position information and direction information of the automatic driving vehicle. Speed information, etc.

In step S102, a location awareness request is sent to the GMLC, where the location awareness request is used to instruct the GMLC to feed back an awareness of the user equipment according to the location awareness request.

For example, in this embodiment, after receiving the location awareness request sent by the awareness requesting end, the SAF network element sends the location awareness request to the GMLC (Gateway Mobile Location Centre, mobile location center gateway) to determine the location awareness request through the GMLC.

Optionally, in another embodiment, the step of sending the location-aware request to the GMLC includes:

the location awareness request is sent to the network element open function device NEF to send the location awareness request to the GMLC through the NEF.

For example, in this embodiment, the SAF network element may be disposed in an LCS (Location Services, location service) architecture, and fig. 2 is a block diagram of an LCS aware service architecture shown in an exemplary embodiment, and as shown in fig. 2, in the LCS aware service architecture, the SAF network element may be used as an LCS Client (LCS Client) to connect with a GMLC (Gateway Mobile Location Centre, a mobile location center gateway) and an LRF (Location Retrieval Function, a location retrieval function) gateway through a Le interface, so as to send a received location awareness request to the GMLC; the network element open function device can also be used as an AF (Access Facilities, access device) connected with the NEF (Network Exposure Function, network element open function device) through an N33 interface for sending the received positioning sensing request to the NEF and sending the positioning sensing request to the GMLC through the NEF.

For example, the GMLC determines the identification information of the UE according to the location awareness request, determines the initial awareness intention of the UE according to the identification information, and sends the location awareness request to an AMF (Access and Mobility Management Function ) network element when determining that the UE operates location awareness. It should be noted that, privacy configuration data corresponding to each UE may be configured in the GMLC, where the privacy configuration data may include a time condition, an area condition, a service type condition, etc. that the UE is allowed to perform location awareness, and a mapping relationship between a UE corresponding identifier and the privacy configuration data is established. After the GMLC receives a positioning sensing request sent by an SAF network element, determining an identifier corresponding to the UE through analysis, determining privacy configuration data corresponding to the UE according to the identifier, and judging the initial sensing willingness of the UE based on the privacy configuration data; when the positioning sensing request sent by the SAF network element meets the initial sensing wish of the UE, the positioning sensing request is sent to the AMF network element; and rejecting the positioning sensing request when the positioning sensing request sent by the SAF network element does not meet the initial sensing willingness of the UE, and feeding back sensing rejection information to the SAF network element.

For example, after the GMLC receives a location sensing request of the UE, it determines that the sensing request end needs to sense the location information and the direction information of the UE at 10 points, and the GMLC determines that the initial sensing intention of the UE indicates that the UE is between 10 points and 14 points through the identity of the UE, and does not allow sensing, then the GMLC will reject the location sensing request and feedback sensing rejection information to the SAF network element.

After the location sensing request meets the initial sensing willingness of the UE, the GMLC sends the location sensing request to an AMF network element, the AMF network element receives the location sensing request sent by the GMLC, and senses the relevant attribute information of the UE through a corresponding location sensing device based on the attribute information of the UE required to be acquired in the location sensing request to generate sensing information, and sends the sensing information to the GMLC, and the GMLC generates the sensing willingness of the UE based on the sensing information fed back by the AMF network element.

Optionally, in another embodiment, the step sends a location awareness request to the GMLC, where the location awareness request is used to instruct the GMLC to send the location awareness request to the AMF network element if the user equipment allows location awareness, and receives awareness information sent by the AMF network element, and generates an awareness according to the awareness information, including: transmitting a location awareness request to the GMLC, the location awareness request being for instructing the GMLC to determine an identifier of the user equipment according to the location awareness request and transmitting the identifier to the unified data management UDM network element; the identifier is used for indicating target privacy configuration data corresponding to the user equipment determined by the UDM network element from preset privacy configuration data according to the identifier; the location sensing request is also used for the GMLC to send the location sensing request to the AMF network element under the condition that the user equipment is determined to allow location sensing according to the target privacy configuration data, to receive sensing information sent by the AMF network element, and to generate sensing willingness in response to the sensing information, wherein the sensing information is generated according to the sensing privacy indication fed back by the user equipment after the AMF network element sends notification calling information to the user equipment according to the location sensing request.

For example, the GMLC in this embodiment determines, according to the location awareness request, an identifier corresponding to the UE that needs to perform location awareness, where the identifier may be a GPSI (Generic Public Subscription Identifier, universal public user identity) or SUPI (Subscription Permanent Identifier, user permanent identifier) corresponding to the UE. The GPSI sends the identifier to a UDM (Unified Data Management ) network element, which determines target privacy configuration data corresponding to the UE from preset privacy configuration data according to the identifier. It should be noted that preset privacy configuration data corresponding to each UE is configured in the UDM, and is used for determining the perception intention of each UE, establishing a mapping relationship between identifiers corresponding to each UE and the corresponding preset privacy configuration data, and determining target privacy configuration data of the UE according to the identifiers corresponding to the UE. For example, the following preset privacy configuration data may be configured in the UDM:

/>

a preliminary determination of the UE's perceived willingness is made by privacy awareness indication data, invocation/session independent class data and PLMN (Public Land Mobile Network, public land communication network) operator class data. The target privacy configuration data corresponding to different UEs are different, and each type of privacy configuration data comprises necessary items and selectable items, so that the configuration can be performed according to the actual situation of the UEs. And configuring necessary items in the privacy sensing indication data and the call/session irrelevant data, wherein the necessary items are used for judging the sensing willingness of the UE, and if the UE is determined not to be allowed to be sensed according to the necessary items, other selectable items are not required to be determined, and the UDM returns a corresponding sensing rejection request to the GMLC. In the preset privacy configuration data, the sensing request corresponding to the UE is primarily judged, and under the condition that the essential item is met, the sensing willingness of the UE is judged according to the selectable item. For example, the target privacy configuration data corresponding to the UE is: the method comprises the steps of privacy sensing indication-permission sensing, privacy sensing indication-effective time 10-11, calling/conversation irrelevant class-any SAF network element which is not preset or identified for calling/conversation irrelevant class, allowing sensing, UDM feeding back target privacy configuration data to GMLC, and under the condition that the needed item is allowed sensing according to analysis, the GMLC judges that optional privacy sensing indication-effective time 10-11, and if a positioning sensing request meets the optional item, determining that UE is allowed to perform preliminary positioning sensing. It should be noted that, the preset privacy configuration data includes an option that the UE cannot determine whether to allow location awareness according to the related information in the current location awareness request, for example, the target privacy configuration data fed back to the GMLC by the UDM is: the method comprises the steps that privacy sensing indication-permission sensing, calling/conversation irrelevant class-any SAF network element which is not preset or identified for calling/conversation irrelevant class-permission sensing area is allowed to be sensed, GMLC verifies the selectable item after confirming permission to be sensed through verification necessary items, and the selectable item verifies the sensing willingness of the UE after acquiring the current service area of the UE through an AMF network element, so when the GMLC verifies target privacy configuration data fed back by UDM, no privacy configuration data which is not allowed to be subjected to positioning sensing appears, and the GMLC sends a positioning sensing request to the AMF network element.

After receiving the location sensing request, the AMF network element sends notification calling information to the UE according to the location sensing request, where the notification calling information may include type information of the SAF network element, type information of a sensing request end, service type information, required service quality information, and the like, the UE determines whether to allow the location sensing request according to the notification calling information, and indicates a sensing intent of the UE to the AMF network element through sensing privacy indication information. And the AMF network element generates a sensing willingness according to the sensing privacy indication and sends the sensing willingness to the GMLC. For example, after the AMF network element receives the perceived privacy indication, it determines whether the UE allows location awareness, and when the UE allows location awareness, the UE is located by using a corresponding locating device to generate location information of the UE, and a perceived intention of the UE is generated according to the location information and the perceived privacy indication and sent to the GMLC.

In step S103, the sensing intent is sent to the sensing requester in response to the sensing intent fed back by the GMLC.

In this embodiment, for example, when the SAF network element is an LCS client, after the GMLC receives the sensing intent sent by the AMF network element, the GMLC sends the sensing intent to the SAF network element, and the SAF network element feeds back the sensing intent to the sensing request end.

Optionally, the step of sending the sense intention to the sense requester in response to the sense intention fed back by the GMLC includes:

and responding to the sensing willingness fed back by the GMLC through the NEF, and sending the sensing willingness to a sensing request end.

For example, in this embodiment, the SAF network element is used as the AF, after the GMLC receives the sensing intent sent by the AMF network element, the GMLC sends the sensing intent to the AF, and sends the sensing intent of the UE to the SAF network element through the AF, and the SAF network element feeds back the sensing intent to the sensing request end.

Through the scheme, the SAF network element is used as the LCS client or the AF to receive the positioning sensing willingness of the sensing request end, and the sensing willingness of the UE is acquired based on the LCS service architecture and fed back to the sensing request end, so that the sensing request end can provide positioning sensing service for the UE according to the sensing willingness of the UE.

Fig. 3 is a flow chart illustrating a location awareness method, as shown in fig. 3, applied to a GMLC, according to an exemplary embodiment, the method including the following steps.

In step S201, a location awareness request sent by the SAF network element is received, where the location awareness request is used to perceive attribute information of the user equipment.

For example, in this embodiment, the manner in which the GMLC receives the location awareness request is the same as that in step S102, and reference may be made to step S102, which is not described in detail.

For example, in this embodiment, the definition of the attribute information is the same as that in the above step S101, and reference may be made to the above step S101, which is not repeated.

In step S202, in case the user equipment allows location awareness, a location awareness request is sent to the AMF network element.

For example, in this embodiment, the manner in which the GMLC sends the location awareness request to the AMF network element is the same as that in step S102, and reference may be made to step S102, which is not repeated.

In step S203, the sensing information sent by the AMF network element is received.

For example, in this embodiment, the manner in which the GMLC receives the sensing information is the same as that in step S102, and reference may be made to step S102, which is not described in detail.

In step S204, a sense intention of the user equipment is generated according to the sense information.

For example, in this embodiment, the manner in which the GMLC generates the sense intention is the same as that in step S102, and reference may be made to step S102, which is not described in detail.

In step S205, the sense intention is transmitted to the sense request terminal.

For example, after the GMLC generates the sensing intent of the UE through the sensing information in this embodiment, the sensing intent may be sent to the sensing request end through the SAF network element.

Optionally, in one embodiment, step S205 includes:

and under the condition that the user equipment is determined to allow sensing according to the sensing willingness, sending a location service response to the sensing request end through the SAF network element.

And under the condition that the user equipment is determined to not allow perception according to the perception intention, generating perception rejection information of the user equipment.

And sending the perception rejection information to a perception request terminal through the SAF network element.

For example, after receiving the sensing information sent by the AMF network element, the GMLC in this embodiment generates a sensing intent corresponding to the UE, analyzes the sensing intent to determine whether the UE allows the sensing request end to perform positioning sensing, and when determining that the UE allows the sensing by the sensing intent, sends the location information of the UE to the sensing request end by the SAF network element; and when the UE is determined to not allow sensing through the sensing willingness, generating sensing rejection information of the UE, and sending the sensing rejection information to a sensing request end through the SAF network element.

By the method, the application GMLC judges the positioning sensing request, when the UE is determined to run positioning sensing, the positioning sensing request is sent to the AMF network element, and based on sensing information fed back by the AMF network element, sensing willingness of the UE is generated and sent to a sensing request end. The sensing request end can provide positioning sensing service for the UE according to the sensing willingness of the UE.

Fig. 4 is a flowchart illustrating a location awareness method, as shown in fig. 4, applied to a GMLC, according to an exemplary embodiment, including the following steps.

In step S301, a location awareness request sent by an SAF network element is received, where the location awareness request is used to perceive attribute information of a user equipment.

Optionally, in an embodiment, in a case that the user equipment allows the location awareness, sending the location awareness request to the AMF network element includes:

in step S302, an identifier of the user equipment is determined in response to the location-aware request.

For example, in this embodiment, after the GMLC receives the location awareness request sent by the SAF network element, the GMLC parses the location awareness request to determine the identifier of the UE.

Optionally, in another embodiment, the determining, in response to the location-aware request, an identifier of the user equipment includes:

and acquiring the associated data of the user equipment according to the positioning sensing request.

An identifier of the user equipment is determined from the association data.

For example, in this embodiment, the GMLC may determine association data of the UE according to the location awareness request, where the association data may be subscription data of the UE or other data provided by the SAF network element, and the GMLC may derive an identifier of the UE from the association data.

Optionally, in another embodiment, the location-aware request includes a predetermined aware time, and the determining, in response to the location-aware request, an identifier of the user equipment includes:

and under the condition that the current time reaches the preset sensing time, determining the identifier of the user equipment according to the positioning sensing request.

For example, in this embodiment, the GMLC parses a received location awareness request to determine a predetermined awareness time, the awareness requesting end requests attribute information of the UE at a specific time in the future according to the predetermined awareness time in the location awareness request, and the GMLC determines, according to the predetermined awareness time, the identifier of the UE according to the location awareness request when the current time reaches the predetermined awareness time.

determining the target number of the user equipment according to the positioning sensing request;

in case the target number is less than or equal to the perceived number threshold, an identifier of the user equipment is determined.

For example, in this embodiment, the sensing request end may request attribute information of a plurality of UEs in the same location sensing request, and when the location sensing request includes a plurality of UEs, the GMLC parses the location sensing request to determine the number of UEs in the location sensing request, determines the number of UEs, and if the number of UEs is less than or equal to the sensing number threshold, determines the identifier of each UE through the GMLC.

Optionally, in another real-time manner, the method further comprises:

and generating perception rejection information of the user equipment under the condition that the target number is larger than the perception number threshold value.

For example, in this embodiment, the GMLC determines the number of UEs in the location awareness request, and when the number of UEs is greater than the awareness threshold, generates awareness rejection information of the UE, and sends the awareness rejection information to the awareness request end through the SAF network element, so as to reject the location awareness request of the awareness request end.

and according to the positioning sensing request, performing authorization verification on the positioning service of the SAF network element.

In case the positioning service authorization of the SAF network element is successful, an identifier of the user equipment is determined.

For example, in this embodiment, the location awareness request includes identity information of an SAF network element, after the GMLC receives the location awareness request of the SAF network element, authorization verification is performed on a location service of the SAF network element, for example, a white list that is authorized in advance to perform the location service exists in the GMLC, where the white list includes a plurality of SAF network elements, after receiving the location awareness request sent by the SAF network element, the identity information of the SAF network element is verified, if the identity information of the SAF network element exists in the white list, authorization is performed on the location service of the SAF network element, and an identifier of the UE is determined according to the location awareness request sent by the SAF network element.

Optionally, in another embodiment, the location-aware request includes service identification information, and the step of performing authorization verification on the location service of the SAF network element according to the location-aware request includes:

And authorizing the SAF network element to apply the positioning service under the condition that the service identification information is matched with the preset service identification information.

And rejecting the SAF network element to apply the positioning service under the condition that the service identification information is not matched with the preset service identification information.

For example, in this embodiment, the GMLC is configured with preset service identification information, where the preset service identification information is used to record service identification information of an authorized SAF network element, analyze a location awareness request to determine service identification information of the SAF network element, compare the service identification information with preset service identification information, and when the service identification information matches with the preset service identification information, authorize the SAF network element to apply location services, and when the service identification information does not match with the preset service identification information, reject the SAF network element to apply location services.

Optionally, in another embodiment, the method further includes:

and under the condition that the positioning service authorization of the SAF network element fails, generating perception rejection information of the user equipment.

For example, in this embodiment, the GMLC performs authorization verification on a location awareness request sent by an SAF network element, determines that location service authorization of the SAF network element fails when the location awareness request of the SAF network element does not meet a request of an authorization condition, generates awareness rejection information of the SAF network element based on UE, and sends the awareness rejection information to an awareness request end through the SAF network element. For example, the cause of the refusal of the location-aware request may be included in the awareness refusal information.

In step S303, the identifier is sent to the UDM network element.

For example, in this embodiment, after the GMLC determines the identifier of the UE through the above steps, the identifier is sent to the corresponding UDM network element.

In step S304, target privacy configuration data corresponding to the user equipment determined by the UDM network element from the preset privacy configuration data according to the identifier is received.

For example, in this embodiment, the UDM network element determines, from the preset privacy configuration data, the target privacy configuration data corresponding to the identifier according to the identifier, where the definition of the preset privacy configuration data in the UDM is the same as that in step S102, and reference may be made to step S102, and details are not repeated.

In step S305, in case it is determined that the user equipment allows location awareness according to the target privacy configuration data, a location awareness request is sent to the AMF network element.

For example, the UDM network element sends the target privacy configuration data to the GMLC, the GMLC determines the target privacy configuration data, and sends a location awareness request to the AMF network element corresponding to the UE when determining that the UE is allowed to be located and aware according to the target privacy configuration data, where a manner of determining that the UE is allowed to be located and aware is the same as that in the step S102, and reference may be made to the step S102, and details are not repeated.

Optionally, in another embodiment, in the case that the user equipment determines that the location sensing is allowed according to the target privacy configuration data in step S305, the sending the location sensing request to the AMF network element includes:

and determining the network address of the AMF network element currently served by the user equipment under the condition that the user equipment is determined to allow positioning perception according to the target privacy configuration data.

And sending a location awareness request to the AMF network element in the case that the network address is within a preset service range of the GMLC.

For example, in this embodiment, the GMLC makes a preliminary determination on the sense intention of the UE through the target privacy configuration data, determines, according to the identifier of the UE, the network address of the AMF network element currently served by the UE, compares the network address with the preset service range of the GMLC, and sends the location sensing request to the AMF network element when the AMF network element is within the preset service range of the GMLC, in the case that it is determined that the UE allows location sensing.

Optionally, in another embodiment, the method further includes:

and generating perception rejection information of the user equipment under the condition that the network address is not in the preset service range.

In this embodiment, the GMLC compares the network address of the AMF network element currently served by the UE with the preset service range of the GMLC, determines whether the AMF network element is within the preset service range of the GMLC, generates the sensing rejection information of the UE if the network address is no longer within the preset service range, and sends the sensing rejection information to the sensing request end through the SAF network element, where the sensing rejection information includes a reject reason for rejecting the location sensing request.

In step S306, the sensing information sent by the AMF network element is received.

In step S307, a sense intention of the user equipment is generated based on the sense information.

In step S308, the sense intention is transmitted to the sense request terminal.

By the method, the application GMLC judges the positioning sensing request, and when the UE is determined to allow positioning sensing, the positioning sensing request is sent to the AMF network element, and based on sensing information fed back by the AMF network element, sensing willingness of the UE is generated and sent to a sensing request end. The sensing request end can provide positioning sensing service for the UE according to the sensing willingness of the UE.

Fig. 5 is a flow chart illustrating a location aware method according to an exemplary embodiment, as shown in fig. 5, applied to a GMLC, which is a local mobile location center HGMLC, comprising the following steps.

In step S401, a location awareness request sent by the SAF network element is received, where the location awareness request is used to perceive attribute information of the user equipment.

For example, in this embodiment, the UE in the location awareness request is in a roaming state, the corresponding HGMLC is a GMLC of a UE registration area, the mobile location center gateway currently providing services for the UE is a VGMLC (Visit Gateway Mobile Location Centre, visitor mobile location center gateway), and the location awareness request sent by the SAF network element is received through the HGMLC, where the manner of receiving the location awareness request through the HGMLC is the same as that in the step S201, and reference may be made to the step S201, and details are not repeated.

Optionally, in an embodiment, the step of sending the location awareness request to the AMF network element in case the user equipment allows location awareness includes:

in step S402, the service network address of VGMLC sent by the UDM network element is received.

For example, in this embodiment, after the HGMLC parses the location awareness request, the identifier of the UE is obtained and sent to the UDM network element, and the UDM network element determines the service network address of the UE corresponding to the VGMLC, and sends the service network address and the location awareness request to the HGMLC.

In step S403, according to the service network address, the location-aware request is sent to the VGMLC to send the location-aware request to the AMF network element through the VGMLC.

For example, after determining the service network address of the VGMLC, the HGMLC in this embodiment sends the location awareness request to the VGMLC, and the manner in which the VGLMLC sends the location awareness request to the AMF network element is the same as that in step S202, which may refer to step S202 and will not be repeated.

Optionally, in another embodiment, the method further comprises:

and sending the positioning sensing request to the AMF network element under the condition that the service network address is the same as the registered network address of the HGMLC.

For example, in this embodiment, when the HGMLC does not receive the VGMLC address from the UDM, or the received VGMLC address is the same as the HGMLC address, or both the HPLMN and the VPLMN operators agree, the HGMLC may send the location awareness request to the AMF currently serving.

Optionally, in another embodiment, step S403 includes:

sending a positioning sensing request to the VGMLC, wherein the positioning sensing request is used for indicating the VGMLC to acquire a registration network address of the HGMLC according to the positioning sensing request, and sending the positioning sensing request to an AMF network element under the condition that the registration network address is matched with a preset authorization address of the VGMLC; the positioning sensing request at least comprises at least one of service quality information, sensing time information or service type information.

In this embodiment, after the UE is in a roaming state and the HGMLC sends a location awareness request to the VGMLC, the VGMLC obtains a registered network address of the HGMLC according to the location awareness request, and compares the registered network address with a preset authorization address of the VGMLC, where the registered network address is the preset authorization address of the VGMLC, the VGMLC sends the location awareness request to a corresponding AMF network element, and the location awareness request may include QoS (Quality of Service ) information, awareness time information, and service type information, for example.

Optionally, in another embodiment, the method further comprises:

and sending a positioning sensing request to the VGMLC, wherein the positioning sensing request is used for indicating the VGMLC to acquire the registration network address of the HGMLC according to the positioning sensing request, and generating sensing rejection information of the user equipment under the condition that the registration network address is not matched with the preset authorization address of the VGMLC.

For example, after the HGMLC sends the location sensing request to the VGMLC in this embodiment, the VGMLC obtains the registered network address of the HGMLC according to the location sensing request, compares the registered network address with the preset authorized address of the VGMLC, and generates sensing rejection information of the UE when the registered network address does not match with the preset authorized address of the VGMLC, and sends the sensing rejection information to the sensing request end through the SAF network element.

In step S404, the sensing information sent by the AMF network element is received.

For example, in this embodiment, the manner in which the HGMLC receives the sensing information is the same as that in step S203, and reference may be made to step S203, which is not repeated.

In step S405, a sense intention of the user equipment is generated according to the sense information.

In step S406, the sense intention is transmitted to the sense request terminal.

In the above manner, when the UE is in the roaming state, the HGMLC is applied to determine the location sensing request, and when determining that the UE operates location sensing, the location sensing request is sent to the VGMLC, the VGMLC sends the location sensing request to the AMF network element, and based on sensing information fed back by the AMF network element, generates a sensing intent of the UE, and sends the sensing intent to the sensing request end. The sensing request end can provide positioning sensing service for the UE according to the sensing willingness of the UE.

Fig. 6 is a flow chart illustrating a location awareness method, as shown in fig. 6, applied to a GMLC, according to an exemplary embodiment, the method including the following steps.

In step S501, a location awareness request sent by an SAF network element is received, where the location awareness request is used to perceive attribute information of a user equipment.

For example, in this embodiment, the manner of receiving the location awareness request is the same as that in step S301, and reference may be made to step S301, which is not described in detail.

In step S502, an identifier of the user equipment is determined in response to the location-aware request.

For example, in this embodiment, the manner of determining the identifier is the same as that in step S302, and reference may be made to step S302, which is not described in detail.

In step S503, the identifier is sent to the UDM network element.

For example, the manner of transmitting the identifier in this embodiment is the same as that in step S303, and reference may be made to step S303, which is not described in detail.

In step S504, target privacy configuration data corresponding to the user equipment determined by the UDM network element from the preset privacy configuration data according to the identifier is received.

For example, the manner of receiving the target privacy configuration data in this embodiment is the same as that in step S304, and reference may be made to step S304, which is not described in detail.

In one embodiment, the step of sending a location awareness request to the AMF network element in case it is determined that the user equipment allows location awareness according to the target privacy configuration data comprises the following steps S505 and S506:

in step S505, privacy checking is performed on the user equipment according to the target privacy configuration data to generate a privacy checking result.

In step S506, if it is determined according to the privacy check result that the user equipment needs to be verified based on the current location, a location awareness request is sent to the AMF network element, where the location awareness request is used to indicate an awareness instruction, and the location awareness request includes type information of the SAF network element.

By way of example, in this embodiment, the GMLC parses target privacy configuration data corresponding to the UE, generates a privacy check result according to the target privacy configuration data when determining that the UE needs to perform privacy check, and sends a location awareness request to the AMF network element when determining that the UE needs to perform authentication based on the current location according to the privacy check result, where the location awareness request is used to instruct the AMF network element to "awareness without notification", and in an example, the location awareness request includes type information of the SAF network element.

In step S507, the sensing information sent by the AMF network element is received.

For example, in this embodiment, the manner of receiving the sensing information is the same as that in step S306, and reference may be made to step S306, which is not described in detail.

In step S508, a sense intention of the user equipment is generated according to the sense information.

For example, in this embodiment, the manner of generating the sense intention is the same as that in the above step S307, and reference may be made to the above step S307, which is not repeated.

In step S509, the sense intention is transmitted to the sense request terminal.

For example, in this embodiment, the manner of sending the perception will is the same as that in step S308, and reference may be made to step S308, which is not repeated.

Fig. 7 is a flowchart illustrating a location awareness method, as shown in fig. 7, applied to an AMF network element, according to an exemplary embodiment, the method comprising the following steps.

In step S601, notification invocation information is sent to the user equipment in response to a location awareness request sent by the GMLC, the location awareness request being used to perceive attribute information of the user equipment.

For example, in this embodiment, the manner in which the AMF network element sends the notification calling information to the UE according to the location sensing request sent by the GMLC is the same as that in step S102, which may be referred to step S102, and will not be described in detail, where the location sensing request is sent by the GMLC when the user equipment allows location sensing, the location sensing request is sent by the SAF network element to the GMLC, and the location sensing request is used to sense attribute information of the user equipment.

Optionally, in one embodiment, step S601 includes:

and sending notification calling information to the user equipment in response to a location awareness request sent by the GMLC, wherein the location awareness request is sent by the GMLC under the condition that the user equipment is determined to allow location awareness according to target privacy configuration data corresponding to the user equipment, the target privacy configuration data is determined by the UDM network element from preset privacy configuration data according to an identifier of the user equipment sent by the GMLC, and the identifier of the user equipment is determined by the GMLC after receiving the location awareness request sent by the SAF network element.

For example, after the GMLC receives the location-aware request sent by the SAF network element in this embodiment, the GMLC analyzes the location-aware request to determine an identifier of the UE, sends the identifier to the UDM network element, determines target privacy configuration data corresponding to the UE from preset privacy configuration data according to the identifier, sends the target privacy configuration data to the GMLC, and determines a perception intention of the UE according to the target privacy configuration data, and if it is determined that the UE allows location-aware, sends the location-aware request to the AMF network element, the AMF network element sends notification calling information to the UE according to the location-aware request.

Alternatively, in another embodiment, the step S601 includes:

and determining the connection state of the user equipment according to the positioning sensing request.

And under the condition that the user equipment is in an idle state, triggering a service request flow through a preset network to establish signaling connection with the user equipment.

And sending notification calling information to the user equipment in response to the successful signaling connection.

For example, after receiving a location awareness request sent by the GMLC, the AMF network element in this embodiment confirms a connection state of the UE, and if the UE is in a CM IDLE state (connection management-IDLE state), the AMF starts a network triggering service request procedure to establish a signaling connection with the UE; if the UE is in the CM-Connected state (connection management-Connected state), a signaling connection with the UE is established directly. After the signaling connection of the UE is successful, the AMF network element sends notification calling information to the UE.

Alternatively, in another embodiment, the step S601 includes:

and determining privacy check indication information of the user equipment according to the positioning sensing request.

And under the condition that the user equipment is required to be notified to carry out privacy verification according to the privacy checking indication information, sending notification calling information to the user equipment, wherein the notification calling information comprises the identity information of the SAF network element, the identity information of the perception request end and the service type information.

For example, in this embodiment, the privacy check configuration related to the UE is received from the UDM through the foregoing steps, and the privacy check related action indication information is obtained according to the privacy check configuration, and according to the indication information, it is determined that the UE needs to be notified of privacy verification, and the UE supports location sensing, then a notification call message is sent to the UE through the AMF, where the notification call message includes identity information of the SAF, ID information of a sensing request end, a service type, and whether a privacy verification option is required. It is worth mentioning that the perceived willingness of the UE is obtained through the notification invoking message, and the UE expresses the location perceived willingness of the UE by selecting whether privacy verification is required or not.

In step S602, according to the perceived privacy indication fed back by the user equipment, perceived information is generated.

For example, in this embodiment, the manner of generating the perception information is the same as that in the step S102, and reference may be made to the step S102, which is not described in detail.

Optionally, the perceived privacy indication includes a perceived time.

For example, in this embodiment, the perceived privacy indication fed back by the UE includes perceived time, which is used to feed back the perceived time that the UE is allowed to perform positioning sensing.

Alternatively, in another embodiment, the step S601 includes:

and under the condition that the user equipment needs privacy verification according to the perceived privacy indication, monitoring a notification result fed back by the user equipment, wherein the notification result is used for indicating the user equipment to allow the positioning perceived request or reject the positioning perceived request.

And generating perception information according to a notification result fed back by the user equipment.

For example, in this embodiment, the AMF network element sends notification invoking information to the UE, where the AMF network element monitors a notification result fed back by the UE when determining that the UE needs to perform privacy verification according to a perceived privacy indication fed back by the UE in response to a location awareness request, and waits for a user to grant or reject permission based on privacy verification. And when the UE returns a notification result to the AMF, indicating whether the current positioning sensing request is allowed or refused, and generating sensing information by the AMF network element according to the notification result fed back by the UE.

Optionally, in another embodiment, the method further comprises:

and under the condition that a notification result fed back by the user equipment is not received within a preset time, generating perception non-response information.

For example, in this embodiment, if the AMF network element sends a notification call message, and the UE does not feedback a response after a predetermined period of time, the AMF network element will infer a "no response" condition, and the AMF network element returns an error response to the GMLC. For example, if the UE is in a roaming condition, the AMF returns an error response to the VGMLC, if privacy verification is requested and the UE refuses permission or the VGMLC does not receive a response from the HGMLC indicating that positioning request is prohibited, the VGMLC returns an error response to the HGMLC. For example, the notification result fed back by the UE may also indicate a perceived privacy indication setting of the subsequent location-aware request, i.e. whether the UE enables or disables the subsequent location-aware request.

Alternatively, in another embodiment, the step S601 includes:

and sending a perceived privacy indication to the Location Management Function (LMF) network element, wherein the perceived privacy indication is used for indicating the LMF network element to locate the user equipment and feeding back the location information of the user equipment.

And generating perception information according to the position information.

For example, in this embodiment, after the AMF network element receives the perceived privacy indication fed back by the UE, the perceived privacy indication is parsed, and when it is determined that the perceived privacy indication is allowable to be perceived, the perceived privacy indication is sent to an LMF (Location Management Function ) network element, the UE is located by the LMF network element, and location information of the UE is fed back, and the AMF network element generates corresponding perceived information according to the location information of the UE.

Optionally, in another embodiment, the step of sending a perceived privacy indication to the location management function LMF network element, where the perceived privacy indication is used to instruct the LMF network element to locate the user equipment and feed back location information of the user equipment, includes:

and sending a perceived privacy indication to the LMF network element, wherein the perceived privacy indication is used for indicating the LMF network element to determine a target LMF module according to the perceived privacy indication, and positioning the user equipment through the target LMF module.

For example, in this embodiment, after the perceived privacy indication fed back by the UE, the perceived privacy indication may be sent to the LMF network element through the AMF network element, where the LMF network element parses the perceived privacy indication to determine a target LMF module that meets the perceived privacy indication, and locates the UE according to the target LMF module.

In step S603, the awareness information is sent to the GMLC, where the awareness information is used to instruct the GMLC to generate an awareness intention of the user equipment according to the awareness information, and send the awareness intention to the awareness request end.

For example, in this embodiment, the manner of sending the sensing information is the same as that in the step S102, and reference may be made to the step S102, which is not described in detail.

By the method, the AMF network element is applied to receive the positioning sensing request sent by the GMLC, and the notification calling information is sent to the UE according to the positioning sensing request, so that the UE feeds back the sensing privacy indication, generates sensing information according to the sensing privacy indication and sends the sensing information to the GMLC, and the GMLC sends the sensing information to the sensing request end through the SAF network element, so that the sensing request end can provide positioning sensing service for the UE according to the sensing intention of the UE.

Fig. 8 is a flowchart illustrating a location awareness method, as shown in fig. 8, applied to an AMF network element, according to an example embodiment, the method comprising the following steps.

In step S701, notification invocation information is sent to the user equipment in response to a location awareness request sent by the GMLC, the location awareness request being for awareness of attribute information of the user equipment.

For example, in this embodiment, the manner of sending the notification call information is the same as that in step S601, and reference may be made to step S601, which is not repeated herein, where the location awareness request is sent by the GMLC when the user equipment allows location awareness, the location awareness request is sent by the SAF network element to the GMLC, and the location awareness request is used to perceive attribute information of the user equipment.

In step S702, sensing information is generated according to a sensing privacy indication fed back by the user equipment.

For example, in this embodiment, the manner of generating the perception information is the same as that in the step S601, and reference may be made to the step S602, which is not described in detail.

In step S703, the awareness information is sent to the GMLC, where the awareness information is used to instruct the GMLC to generate an awareness intention of the user equipment according to the awareness information, and send the awareness intention to the awareness request end.

For example, in this embodiment, the manner of sending the sensing information is the same as that in the step S603, and reference may be made to the step S603, which is not repeated.

In step S704, the perceived privacy indication information of the user equipment is determined according to the notification result.

For example, after the above privacy verification is performed, determining a notification result of feedback of the UE, determining, according to the notification result, perceived privacy indication information of the UE, where the perceived privacy indication information is the latest perceived privacy indication of the UE, and storing the perceived privacy indication information in an AMF network element.

In step S705, in response to receiving the target location awareness request of the user equipment again, awareness information is generated according to the awareness privacy indication information.

For example, in this embodiment, when the AMF network element receives the location sensing request of the UE again, the location sensing request may be determined according to the sensing privacy indication information, so as to generate corresponding sensing information.

Optionally, in an embodiment, after step S705, the method further includes:

and sending the perceived privacy indication information to the UDM network element, wherein the perceived privacy indication information is used for indicating the UDM network element to store the perceived privacy indication information to a user data register module (UDR) as a data subset of subscription data.

For example, in this embodiment, after the perceived privacy indication information of the UE is determined through the above steps, the AMF network element sends the perceived privacy indication information to the UDM network element, so that the UDM network element updates the target privacy configuration information of the UE, and the UDM network element uses the perceived privacy indication information as a data subset of subscription data, and stores the perceived privacy indication information in a UDR (User Data Repository, user data register) corresponding to the UE.

Fig. 9 is a flowchart illustrating a location awareness method, as shown in fig. 9, applied to an AMF network element, according to an exemplary embodiment, the method comprising the following steps.

In step S801, notification invocation information is transmitted to the user equipment in response to a location awareness request transmitted by the GMLC for awareness of attribute information of the user equipment.

In step S802, according to the perceived privacy indication fed back by the user equipment, perceived information is generated.

In one embodiment, the above steps send awareness information to the GMLC, where the awareness information is used to instruct the GMLC to generate an awareness intention of the user equipment according to the awareness information, and send the awareness intention to the awareness request end, including the following steps S803, S804, S805, and S806.

In step S803, sensing information is sent to the GMLC, where the sensing information is used to instruct the GMLC to feed back a privacy check request in case it is determined that the user equipment needs privacy check according to the target privacy configuration data and the sensing information.

For example, in this embodiment, after the AMF network element receives the perceived privacy indication fed back by the UE and generates perceived information, the perceived privacy indication is sent to the GMLC, the GMLC determines whether the UE needs to perform further privacy inspection according to the perceived information and the target privacy configuration data, and when determining that the UE does not need to perform further privacy inspection, the GMLC generates a perceived intention according to the perceived information and sends the perceived intention to the perceived request end through the SAF network element; when the GMLC determines that the UE needs to perform further privacy check according to the sensing information and the target privacy configuration data, a privacy check request is generated and fed back to the AMF network element.

In step S804, in response to the privacy check request transmitted by the GMLC, target notification invocation information is transmitted to the user equipment.

For example, in this embodiment, the manner in which the AMF network element sends the notification calling information to the UE after receiving the privacy check request is the same as that in step S601, and reference may be made to step S601, which is not described in detail.

In step S805, target awareness information is generated according to the target awareness privacy indication fed back by the user equipment.

For example, in this embodiment, the manner in which the AMF network element generates the target awareness information is the same as that in step S601, and reference may be made to step S601, which is not repeated.

In step S806, the target awareness information is sent to the GMLC, where the target awareness information is used to instruct the GMLC to generate a target awareness intention of the user equipment according to the target awareness information and send the target awareness intention to the awareness request end.

For example, in this embodiment, the AMF network element sends the target awareness information to the GMLC, and the GMLC determines, according to the target awareness information and the target privacy configuration information, whether the UE needs to perform further privacy inspection again, and when the GMLC determines that the UE does not need to perform further privacy inspection, generates an awareness according to the target awareness information, and sends the awareness intention to the awareness request end through the AMF network element; when the GMLC determines that the UE needs further privacy checking, the steps of S804-S806 described above are repeated until the GMLC determines that the UE does not need further privacy checking any more according to the awareness information and the target privacy configuration data. The GMLC generates the perception willingness of the UE according to the perception information and sends the perception willingness to the perception request end through the SAF.

Optionally, step S806 includes:

and sending target perception information to the GMLC, wherein the target perception information is used for indicating the GMLC to generate a verification result of the user equipment according to the target perception information.

And generating target perception willingness of the user equipment according to the target perception information and the verification result.

For example, after the AMF network element sends the target awareness information to the GMLC, the GMLC notifies and verifies the UE according to the target awareness information, and generates a verification result of the UE, and when determining that the UE does not need to perform further privacy inspection according to the verification result, the GMLC generates a target awareness of the UE according to the target awareness information and the verification result.

Optionally, in another embodiment, step S806 includes:

and sending the perception information to the GMLC, wherein the perception information is used for indicating the GMLC to determine target privacy checking indication information of the user equipment according to the target privacy configuration data and the perception information, and feeding back a privacy checking request under the condition that the user equipment is required to be informed to carry out privacy checking according to the target privacy checking indication information.

For example, in this embodiment, target privacy inspection indication information of the UE is determined according to the sensing information and the privacy configuration data, and after determining that the UE needs to perform further privacy inspection according to the target privacy inspection indication information, a privacy inspection request is fed back to the AMF network element, so that the AMF network element sends privacy verification to the UE according to the privacy inspection request.

Fig. 10 is a flowchart illustrating a location awareness method, as shown in fig. 10, applied to an AMF network element, according to an exemplary embodiment, the method comprising the following steps.

In step S901, notification invocation information is sent to the user equipment in response to a location awareness request sent by the GMLC, the location awareness request being for awareness of attribute information of the user equipment.

In step S902, according to the perceived privacy indication fed back by the user equipment, perceived information is generated.

For example, in this embodiment, the manner of generating the perception information is the same as that in the step S602, and reference may be made to the step S602, which is not described in detail.

In one embodiment, the step of sending awareness information to the GMLC, where the awareness information is used to instruct the GMLC to generate an awareness intention of the user equipment according to the awareness information, and send the awareness intention to the awareness request end, includes step S903:

in step S903, the sensing information is sent to the visitor mobile positioning center VGMLC to send the sensing information to the local mobile positioning center HGMLC through the VGMLC.

For example, in this embodiment, after the AMF generates the sensing information of the UE in the roaming state, the sensing information is sent to the VGMLC, the sensing information is sent to the HGMLC through the VGMLC, and the HGMLC generates the sensing intention of the UE through the sensing information and sends the sensing intention to the sensing request end through the SAF.

Fig. 11 is a flowchart illustrating a location awareness method, as shown in fig. 11, applied to a UE, according to an exemplary embodiment, the method including the following steps.

In step S1001, notification call information sent by an AMF network element is obtained, where the notification call information is sent by the AMF network element when a location awareness request sent by the GMLC is received, and the location awareness request is used to perceive attribute information of a user equipment.

For example, in this embodiment, the manner in which the UE obtains the notification call information is the same as that in step S601, and reference may be made to step S601, which is not described in detail.

Optionally, in one embodiment, step S1001 includes:

the method comprises the steps of obtaining notification calling information sent by an AMF network element, wherein the notification calling information is sent by the AMF network element under the condition that a positioning sensing request sent by a GMLC is received, the positioning sensing request is sent to the AMF network element by the GMLC under the condition that positioning sensing is allowed by user equipment according to target privacy configuration data corresponding to the user equipment, the target privacy configuration data is determined by a UDM network element from preset privacy configuration data according to an identifier of the user equipment sent by the GMLC, and the identifier of the user equipment is determined by the GMLC after the positioning sensing request sent by the SAF network element is received.

For example, in this embodiment, the method for obtaining the notification call information is the same as that in step S102, and reference may be made to step S102, which is not described in detail.

In step S1002, a perceived privacy indication is generated in response to a result of a user' S selection of notification call information.

For example, in this embodiment, the manner of generating the perceived privacy indication is the same as that in step S601, and reference may be made to step S601, which is not described in detail.

In step S1003, a perceived privacy indication is sent to the AMF network element, where the perceived privacy indication is used to indicate the perceived willingness of the user equipment.

For example, in this embodiment, the manner of sending the perceived privacy indication to generate the perceived information through the AMF network element and sending the perceived information to the GMLC, and the manner of sending the perceived intention generated by the GMLC through the perceived information to the perceived request end is the same as that in step S601, which can refer to step S601 and will not be repeated.

By the method, the application UE acquires notification calling information sent by the AMF network element, generates a perception privacy indication based on a selection result of the notification calling information by a user, sends the perception privacy indication to the AMF network element, enables the AMF network element to generate perception information according to the perception privacy indication, sends the perception information to the GMLC, and generates perception willingness of the UE through the GMLC and sends the perception willingness to a perception request end. Therefore, the sensing request end can provide positioning sensing service for the UE according to the sensing willingness of the UE.

Fig. 12 is a flowchart illustrating a location awareness method, as shown in fig. 12, applied to a UDM network element, the method including the following steps.

In step S1101, an identifier of the user equipment transmitted by the GMLC is received.

For example, the manner of receiving the identifier in this embodiment is the same as that in step S102, and reference may be made to step S102, which is not described in detail.

In step S1102, target privacy configuration data corresponding to the user equipment is determined from the preset privacy configuration data according to the identifier.

For example, in this embodiment, the manner of determining the target privacy configuration data is the same as that in step S102, and reference may be made to step S102, which is not described in detail.

In step S1103, the target privacy configuration data is sent to the GMLC.

For example, in this embodiment, the manner of sending the target privacy configuration data is the same as that in step S102, and reference may be made to step S102, which is not described in detail.

By the method, the UDM is applied to determine the target privacy configuration data of the UE, the target privacy configuration data is sent to the GMLC, when the GMLC determines that the UE allows positioning sensing according to the target privacy configuration data, a positioning sensing request is sent to the AMF network element, sensing willingness is generated according to sensing information fed back by the AMF network element and sent to the sensing request end, and therefore the sensing request end can provide positioning sensing service for the UE according to the sensing willingness of the UE.

FIG. 13 is a block diagram illustrating a location awareness system, the system including: the system comprises a sensing application function SAF network element, a mobile positioning center gateway GMLC, a unified data management UDM network element, an access and mobility management function AMF network element and user equipment.

The SAF network element receives a positioning sensing request sent by a sensing request end and sends the positioning sensing request to the GMLC, wherein the positioning sensing request is used for sensing attribute information of user equipment;

the GMLC determining an identifier of the user equipment in response to the location awareness request, the identifier being sent to a UDM network element;

the UDM network element determines target privacy configuration data corresponding to the user equipment from preset privacy configuration data according to the identifier, and feeds the target privacy configuration data back to the GMLC;

the GMLC sends the location awareness request to the AMF network element under the condition that the user equipment is determined to allow location awareness according to the target privacy configuration data;

the AMF network element responds to a positioning sensing request sent by the GMLC and sends notification calling information to user equipment;

the user equipment responds to the notification calling information, generates a perceived privacy indication according to a selection result of a user on the notification calling information, and sends the perceived privacy indication to the AMF network element;

The AMF network element generates sensing information according to sensing privacy indication fed back by the user equipment and sends the sensing information to the GMLC;

the GMLC generates the perception willingness of the user equipment according to the perception information and sends the perception willingness to the perception request terminal through the SAF network element.

Alternatively, in one implementation, fig. 14 is a flowchart illustrating a location-aware method according to an exemplary embodiment, where the method is applied to the location-aware system described above, as shown in fig. 14, the method includes the following steps.

1. When the SAF is used as an LCS client, after receiving a location awareness request sent by an awareness request end through the SAF, the SAF identifies a GPSI (Generic Public Subs cription Identifier, universal public user identity) or a SUPI (SUbs cription Permanent Identifier, user permanent identifier) included in the location awareness request, determines a UE that the awareness request end carries out location awareness, and sends the location awareness request to a corresponding HGMLC according to the GPSI or SUPI to carry out location awareness, where the location awareness request is used to perceive attribute information of the UE, and the attribute information may include location information, speed information, shape information, direction information, and the like. By way of example, the location-aware request may include QoS (Quality of Service ) required for location awareness, supported GAD shape, and other attributes. After the HGMLC determines the GPSI or SUPI corresponding to the UE through parsing according to the location awareness request, the HGMLC performs authorization determination on the SAF based on the LCS service of the UE, and for example, the HGMLC may further determine the GPSI or SUPI of the UE from subscription data or other data provided by the SAF, and may derive the QoS required by the location awareness UE. When the SAF satisfies the authorization condition, the SAF is authorized to use the LCS service. If the authorization fails, steps 2-23 are skipped, the HGMLC generates the UE's perception rejection information, the perception rejection information is fed back to the perception request terminal through the SAF, and the HGMLC responds to the SAF with a service authorization failure in step 24. For example, the location-aware request may also carry a service identifier, a service password, service range information, and the like of the location-aware service. The HGMLC may verify whether the service identity received in the location-aware request matches one of the SAF-allowed service identities, and if the service identity does not match one of the SAF-allowed service identities, the HGMLC will reject the location-awareness of the SAF, otherwise, the HGMLC may map the received service identity to a corresponding service type, providing location-aware services for the UE.

It should be noted that, when the sensing request end requests to acquire the current location information of the UE at a specific time in the future, the SAF includes the scheduled predetermined sensing time in the location sensing request sent to the HGMLC after parsing the location sensing request.

For example, if the location aware request includes a pseudonym of the UE, and the HGMLC cannot resolve the PMD (Physical Medium Department, physical medium associated layer interface) address of the UE from the pseudonym, the HGMLC self-names the UE to determine the GPSI or SUPI of the UE. If the HGMLC can resolve the PMD address of the UE from the pseudonym, the HGMLC may request the GPSI or SUPI of the UE from the associated PMD. If the HGMLC cannot obtain the GPSI or SUPI of the UE, the HGMLC refuses the positioning sensing request, steps 2-23 are skipped, sensing refusal information of the UE is generated by the HGMLC, the sensing refusal information is fed back to the sensing request end through the SAF, and the HGMLC responds to the failure of service authorization to the SAF in step 24.

1b-1 when the SAF receives as AF a location awareness request sent by the awareness requesting end, the SAF sends to the NEF an nnef_eventExponsure_subscore instruction, wherein the location awareness request includes QoS (Quality of Service ) required for location awareness, supported GAD shape and other attributes.

1b-2 the NEF identifies according to QoS attributes received from a Location awareness request, determines a corresponding HGMLC, and invokes an ngmlc_location_provision Location instruction to the HGMLC, and sends a Location awareness request to the HGMLC to request Location awareness services, where the Location awareness request includes attribute information received from the SAF, and the attribute information is attribute information of the UE that is requested to be aware by the awareness request end.

It should be noted that, if the location sensing request sent by the sensing request end includes a plurality of UEs, the NEF or the HGMLC determines the number of UEs in the location sensing request when receiving the location sensing request sent by the SAF through the nnef_eventExposure_subscience instruction or the location sensing request instruction, and determines whether the number of UEs is equal to or smaller than the maximum number of UEs of the SAF. If the maximum number of UEs is exceeded, the NEF or the HGMLC will reject the nnef_eventExposure_subscore instruction or the location sensing request instruction, step 2-23 is skipped, sensing rejection information of the UE is generated by the HGMLC, the sensing rejection information is fed back to the sensing request terminal through the SAF, and the HGMLC responds to the sensing request error to the SAF in step 24, and the corresponding error cause.

2. After the HGMLC receives the location awareness request sent by the SAF and determines that the location awareness request is successfully authorized through verification, the HGMLC invokes a nudm_sdm_get instruction to the UDM of the UE to complete the subscription service operation with the UDM, and the UDM searches, through the GPSI or SUPI of the UE, in preset privacy configuration data to obtain the target privacy setting of the UE identified by the GPSI or SUPI, where the definition of the preset privacy configuration data is the same as that in step S102, and is not repeated. The UDM feeds back the target privacy setting to the HGMLC. The HGMLC analyzes the target privacy configuration, determines whether the UE is allowed to perform positioning sensing, if the UE is not allowed to perform positioning sensing, steps 3-23 are skipped, sensing rejection information of the UE is generated by the HGMLC, the sensing rejection information is fed back to the sensing request terminal through the SAF, and the HGMLC responds to the SAF that service authorization fails in step 24.

3. The HGMLC uses the GPSI or SUPI of the UE to invoke a nudm_uecm_get instruction to the UDM of the UE to invoke a retrieve service operation in the UDM, which returns the network address of the UE corresponding to the current service AMF and the address of the VGMLC (for the UE in roaming conditions). For example, if the location aware request is an immediate location request, the HGMLC determines a country code for the UE's current service node address according to the network address of the UE's current service AMF and the address of the VGMLC. If the HGMLC determines that the currently serviced AMF or VGMLC is not within the service range of the HGMLC, the HGMLC returns an error message to the SAF, steps 3-23 are skipped, the HGMLC generates the UE's sense rejection information, the sense rejection information is fed back to the sense requester through the SAF, and the HGMLC responds to the SAF with a sense request error, and the corresponding error cause in step 24.

4. In case the UE is roaming, the HGMLC may receive in step 3 from the UDM the address of the VGMLC currently served by the UE and/or the network address of the AMF currently served, and the HGMLC may also select the VGMLC in the available VPLMN (Visited-PLMN) as the VPLMN currently served by the UE, using, for example, NRF (NF Register Function, network registration function) services in the HPLMN (Home Public Land Mobile Network, registered public land network), optionally also determine the VPLMN identity currently served by the UE based on the AMF address received in step 3. The HGMLC sends a Location awareness request to the VGMLC by sending an Ngmlc_location_Providlocation instruction to the VGMLC to invoke a Location services operation.

It should be noted that, when the HGMLC does not receive the VGMLC address from the UDM, or the received VGMLC address is the same as the HGMLC address, or both the HPLMN and the VPLMN operators agree, the step is skipped, and the HGMLC may send the location awareness request to the AMF currently served. For example, the HGMLC performs privacy checking on the UE according to the target privacy configuration data fed back by the UDM, and if the result of the privacy checking indicates that verification based on the current location of the UE is required, the HGMLC sends a location awareness request to the VGMLC (in the case of roaming) or to the AMF (in the case of non-roaming), indicating "awareness without notification". The HGMLC also provides type information of the SAF (including AF type and/or LCS client type) in the location aware request, for example.

5. In the case that the UE is roaming, the VGMLC first determines whether the country address corresponding to the location awareness request from the HGMLC, HPLMN is an authorized country address. If not, an error response is returned to the HGMLC, step 3-23 is skipped, the HGMLC generates the perception rejection information of the UE, the perception rejection information is fed back to the perception request terminal through the SAF, and the HGMLC responds to the perception request error and the corresponding error reason to the SAF in step 24. And if the country address corresponding to the Location awareness request is the country address authorized by the VGMLC, after the VGMLC receives the Location awareness request sent by the HGMLC, invoking Location awareness service operation to the AMF through a Namf_location_Provisioning info instruction to request to perceive the UE, wherein the service operation comprises SUPI or GPSI and SAF types of the UE, and the required QoS information, scheduling awareness time information, service types and other attributes and the like received or determined in the step 1.

6. Confirming the connection state of the UE through the AMF, and if the UE is in a CM IDLE state (connection management-IDLE state), starting a network triggering service request process by the AMF to establish signaling connection with the UE; if the UE is in the CM-Connected state (connection management-Connected state), a signaling connection with the UE is established directly.

7. The method comprises the steps that privacy checking configuration related to the UE is received from the UDM, a privacy checking related action indicator is obtained according to the privacy checking configuration, the UE is determined to be required to be informed of privacy verification according to the privacy checking related action indicator, and the UE supports positioning sensing, and then a notification calling message is sent to the UE through the AMF, wherein the notification calling message comprises the identity information of the SAF, the ID information of a sensing request end, the service type and whether privacy verification options are required or not. It is worth mentioning that the perceived willingness of the UE is obtained through the notification invoking message, and the UE expresses the location perceived willingness of the UE by selecting whether privacy verification is required or not.

8. In response to the location-aware request in the UE, if privacy verification is required in the location-aware request, the AMF waits for the user to grant or deny permission based on the privacy verification. The UE then returns a notification result to the AMF indicating whether privacy verification is requested, whether the current location-aware request is allowed or denied. If the UE does not feed back a response after a predetermined period of time after the AMF issues the notification invocation message, the AMF will infer a "no response" condition, skip steps 9-13, and the AMF returns an error response to the HGMLC. If the UE is in roaming condition, the AMF returns an error response to the VGMLC, if privacy verification is requested and the UE refuses permission or the VGMLC does not receive a response from the HGMLC indicating that positioning request is prohibited, steps 10-13 are skipped and the VGMLC returns an error response to the HGMLC. For example, the notification result fed back by the UE may also indicate a perceived privacy indication setting of the subsequent location-aware request, i.e. whether the UE enables or disables the subsequent location-aware request.

9. The AMF invokes a location service operation based on the notification result sent by the UE through a nudm_parameter provision_update instruction, stores the sensed privacy indication information received from the UE in the UDM, which may store updated UE privacy setting information in the UDR as a "perceived privacy" data subset of the subscription data.

10. And the AMF sends an LMF selection instruction to the LMF when the UE is determined to be allowed to be perceived through the notification result sent by the UE, the LMF selects an LMF module conforming to the UE according to the attribute of the UE, and the UE is positioned based on the LMF module. For example, the AMF may indicate the service type to the LMF, which may also determine the UE's awareness information from the local coordinates and/or the geographic coordinates.

11. The AMF requests the LMF for the sensing information of the UE by transmitting an nlmf_location_determinelocation instruction to the LMF. For example, if the predetermined sensing time is provided in the above step 5, the nlmf_location_determinelocation instruction includes the scheduled sensing time.

12. The LMF transmits a location awareness request to the UE in response to the location request transmitted by the AMF to perceive attribute information of the UE, and illustratively, when the LMF transmits the location awareness request to the UE, the LMF may include a scheduled awareness time therein.

13. The LMF sends the acquired sensing information of the UE to the AMF based on an Nlmf_location_Determinelocation request instruction.

14. When the UE is in roaming, the AMF invokes service operation based on the Namf_location_ProvidPositionInfo instruction, and returns the current perception information of the UE to the VGMLC. By way of example, the service operation includes perception estimation data, age of UE, and perception accuracy data, etc., and may include time stamp information on a perception method and a perception estimation.

15. In case the UE is roaming, the VGMLC forwards the UE's perception estimate data, UE's age, perception accuracy data, and the information of the perception method received in step 14 to the HGMLC. For a non-roaming scene, the AMF invokes a service operation based on the Namf_location_ProvidPositionInfo instruction, and returns the current perception information of the UE to the HGMLC.

16. After the HGMLC receives the sensing information fed back by the AMF or VGMLC, based on the privacy check data corresponding to the target privacy configuration data of the UE in step 2 and the sensing information, determining whether the UE needs to perform further privacy check to determine whether the HGMLC can forward the sensing information to the SAF, and when the result of the privacy check determines that notification and verification based on the current location of the UE are required, sending a verification notification to the AMF for verification. For example, when it is determined by the target privacy configuration data of the UE that the UE defines different privacy settings for different geographic locations, the UE needs to perform further privacy checks. When no additional privacy check is required, the HGMLC skips steps 17-23, generates the perception willingness of the UE according to the perception information of the UE, and sends the perception willingness to the perception request end through the SAF.

17. If the privacy check result of the UE in step 16 indicates that the UE needs to be notified and verified based on the current Location, and the UE is in a roaming state, the HGMLC sends a Location service operation by sending a ngmlc_location_provision instruction to the VGMLC, so as to send a Location awareness request to the VGMLC, where the Location awareness request indicates that the corresponding awareness type is "notify only", for example.

18. When the UE is in a roaming state, after the VGMLC receives the positioning sensing request, namf_location_ProvidPositionInfo service operation is called to the AMF to request to notify and verify the UE, and when the UE is not in the roaming state, namf_location_ProvidPositionInfo service operation is called to the AMF by the HGMLC to request to notify and verify the UE.

19-21, and the manner in step 19-21 is the same as that in step 6-8, and will not be described again.

22. When the UE is in the roaming state, the AMF returns the UE's sensing information to the VGMLC by calling the instruction namf_location_provideoposinginfo, and indicates the result of the notification and authentication procedure performed in steps 20-21.

23. In the case of roaming, the VGMLC forwards an indication of the notification and validation procedure result to the HGMLC. For non-roaming scenarios, this step is skipped.

24. For example, if the UE is allowed to be perceived by the SAF, the HGMLC sends a location services response to the SAF. When the SAF is AF, the NEF sends a positioning service to the SAF, and the corresponding NEF correspondingly sends the positioning service to the SAF by calling an Nnef_EventExposure_notify instruction or sends an Nnef_EventExposure_subscience instruction to the SAF so as to execute a position subscription response. If a pseudonym is included in the location-aware request from the SAF, and the HGMLC resolves the UE's corresponding GPSI or SUPI from the pseudonym in step 1, the HGMLC will use the UE's pseudonym SAF in a sense response to the outside. If required by the SAF, the HGMLC may first convert the generic location coordinates provided by the AMF into a location identity of some local geographic reference system. For example, the HGMLC may also record charging information for the SAF as well as network charging information from the AMF network. The location aware service response from the HGMLC to the SAF may include information about the used sensing method and the obtained sensing estimate information, as well as an indication of the accuracy of whether the location aware request is satisfied. If in step 2, step 15, step 16 or step 23 the HGMLC recognizes that the UE is not allowed to be perceived by SAF, the location-aware request is denied, and the reason for refusing to perceive the UE is indicated in the response. If the level of the positioning service QoS is guaranteed and the HGMLC detects that the accuracy of the positioning awareness request does not meet the standard, the HGMLC sends an error response to the SAF, where the error response may include a failure cause.

Fig. 15 is a block diagram illustrating a location aware apparatus according to an exemplary embodiment, the apparatus being applied to an SAF network element, the apparatus 100 shown in fig. 15, comprising: a receiving module 110, a transmitting module 120, and an executing module 130.

The receiving module 110 is configured to receive a location awareness request sent by the awareness requesting end, where the location awareness request is used to perceive attribute information of the user equipment.

The sending module 120 is configured to send a location awareness request to the GMLC, where the location awareness request is used to instruct the GMLC to feed back the awareness of the user equipment according to the location awareness request.

And an execution module 130 configured to send the perceived willingness to the sensory request terminal in response to the perceived willingness fed back by the GMLC.

Optionally, the sending module 120 is configured to:

transmitting a location awareness request to the GMLC, the location awareness request being for instructing the GMLC to determine an identifier of the user equipment according to the location awareness request and transmitting the identifier to the UDM network element; the identifier is used for indicating target privacy configuration data corresponding to the user equipment determined by the UDM network element from preset privacy configuration data according to the identifier; the location sensing request is also used for the GMLC to send the location sensing request to the AMF network element under the condition that the user equipment is determined to allow location sensing according to the target privacy configuration data, to receive sensing information sent by the AMF network element, and to generate sensing willingness in response to the sensing information, wherein the sensing information is generated according to the sensing privacy indication fed back by the user equipment after the AMF network element sends notification calling information to the user equipment according to the location sensing request.

Optionally, the execution module 130 includes a transmission sub-module configured to:

the location awareness request is sent to the NEF to send the location awareness request to the GMLC through the NEF.

Optionally, the transmitting sub-module is configured to:

Fig. 16 is a block diagram of a location aware device according to an exemplary embodiment, the device being applied to a GMLC, as shown in fig. 16, the device 200 comprising: a first receiving module 210, a first transmitting module 220, a second receiving module 230, a generating module 240 and a second transmitting module 250.

A first receiving module 210, configured to receive a location awareness request sent by the SAF network element, where the location awareness request is used to perceive attribute information of the user equipment;

a first sending module 220 configured to send a location awareness request to the AMF network element if the user equipment allows location awareness;

a second receiving module 230, configured to receive the sensing information sent by the AMF network element;

A generating module 240 configured to generate a perception intention of the user equipment according to the perception information;

the second sending module 250 is configured to send the sense intention to the sense requester.

Optionally, the first sending module 220 includes:

a determination submodule configured to determine an identifier of the user equipment in response to the location-aware request;

a first transmitting sub-module configured to transmit the identifier to the UDM network element;

the receiving sub-module is configured to receive target privacy configuration data corresponding to the user equipment, which is determined by the UDM network element from the preset privacy configuration data according to the identifier;

and the second sending submodule is configured to send a positioning sensing request to the AMF network element under the condition that the user equipment is determined to allow positioning sensing according to the target privacy configuration data.

Optionally, determining the submodule includes:

the execution unit is configured to carry out authorization verification on the positioning service of the SAF network element according to the positioning sensing request;

a determining unit configured to determine an identifier of the user equipment in case the positioning service authorization of the SAF network element is successful.

Optionally, the apparatus 200 further comprises a third transmission module configured to:

Under the condition that positioning service authorization of the SAF network element fails, generating perception rejection information of the user equipment;

Optionally, the execution unit is configured to:

under the condition that the service identification information is matched with the preset service identification information, authorizing the SAF network element to apply positioning service;

Optionally, the determining submodule is configured to:

acquiring associated data of user equipment according to the positioning sensing request;

an identifier of the user equipment is determined from the association data.

Optionally, the location-aware request includes a predetermined awareness time, and the determining submodule is configured to:

Optionally, the determining submodule is configured to:

Optionally, the apparatus 200 further comprises a fourth transmission module configured to:

Generating perception rejection information of the user equipment under the condition that the target number is larger than a perception number threshold;

Optionally, the second transmitting sub-module is configured to:

under the condition that the user equipment is determined to allow positioning sensing according to the target privacy configuration data, determining the network address of an AMF network element currently served by the user equipment;

Optionally, the apparatus 200 further comprises a fifth transmitting module configured to:

generating perception rejection information of the user equipment under the condition that the network address is not in a preset service range;

Optionally, the GMLC is an HGMLC, and the second sending submodule includes:

a receiving unit configured to receive a service network address of the VGMLC transmitted by the UDM network element;

and the sending unit is configured to send the positioning sensing request to the VGMLC according to the service network address so as to send the positioning sensing request to the AMF network element through the VGMLC.

Optionally, the apparatus 200 further comprises a sixth sending module configured to:

Optionally, the second transmitting sub-module is configured to:

performing privacy inspection on the user equipment according to the target privacy configuration data to generate a privacy inspection result;

and under the condition that the user equipment needs to be verified based on the current position according to the privacy checking result, sending a positioning sensing request to the AMF network element, wherein the positioning sensing request is used for indicating a sensing instruction, and the positioning sensing request comprises type information of the SAF network element.

Optionally, the transmitting unit is configured to:

sending a positioning sensing request to the VGMLC, wherein the positioning sensing request is used for indicating the VGMLC to acquire a registration network address of the HGMLC according to the positioning sensing request, and generating sensing rejection information of the user equipment under the condition that the registration network address is not matched with a preset authorization address of the VGMLC;

Optionally, a second transmitting module 250 is configured to

Under the condition that the user equipment is determined to allow sensing according to the sensing willingness, sending a position service response to a sensing request end through an SAF network element;

under the condition that the user equipment is determined to not allow perception according to the perception intention, perception rejection information of the user equipment is generated;

Fig. 17 is a block diagram of a location awareness apparatus according to an exemplary embodiment, applied to an AMF network element, as shown in fig. 17, the apparatus 300 includes: a first transmitting module 310, a generating module 320 and a second transmitting module 330.

A first transmitting module 310 configured to transmit notification invocation information to the user equipment in response to a location awareness request transmitted by the GMLC, the location awareness request being for awareness of attribute information of the user equipment;

a generating module 320 configured to generate the perceived information according to the perceived privacy indication fed back by the user equipment;

The second sending module 330 is configured to send awareness information to the GMLC, where the awareness information is used to instruct the GMLC to generate an awareness intention of the user equipment according to the awareness information, and send the awareness intention to the awareness requesting end.

Optionally, the first sending module 310 is configured to:

determining the connection state of the user equipment according to the positioning sensing request;

under the condition that the user equipment is in an idle state, triggering a service request flow through a preset network to establish signaling connection with the user equipment;

Optionally, the first sending module 310 is configured to:

Determining privacy check indication information of the user equipment according to the positioning sensing request;

Optionally, the generating module 320 is configured to:

under the condition that the user equipment needs privacy verification according to the perceived privacy indication, monitoring a notification result fed back by the user equipment, wherein the notification result is used for indicating the user equipment to allow the positioning perception request or reject the positioning perception request;

Optionally, the apparatus 300 further comprises a decision module configured to:

Optionally, the apparatus 300 further comprises a determination module configured to:

determining perception privacy indication information of user equipment according to a notification result;

and responding to the target positioning sensing request of the user equipment again, and generating sensing information according to the sensing privacy indication information.

Optionally, the apparatus 300 further comprises a storage module configured to:

and sending the perceived privacy indication information to the UDM network element, wherein the perceived privacy indication information is used for indicating the UDM network element to store the perceived privacy indication information to the UDR as a data subset of the subscription data.

Optionally, the generating module 320 includes:

the sending submodule is configured to send a perceived privacy indication to the LMF network element, wherein the perceived privacy indication is used for indicating the LMF network element to locate the user equipment and feeding back the position information of the user equipment;

and the generation sub-module is configured to generate perception information according to the position information.

Optionally, the transmitting submodule is configured to:

Optionally, the perceived privacy indication includes a perceived time.

Optionally, the second sending module 330 is configured to:

sending sensing information to the GMLC, wherein the sensing information is used for indicating the GMLC to feed back a privacy check request under the condition that the user equipment is determined to need privacy check according to the target privacy configuration data and the sensing information;

Responding to a privacy check request sent by the GMLC, and sending target notification calling information to user equipment;

generating target perception information according to target perception privacy indication fed back by user equipment;

and sending the target perception information to the GMLC, wherein the target perception information is used for indicating the GMLC to generate target perception willingness of the user equipment according to the target perception information and sending the target perception willingness to the perception request end.

Optionally, the second sending module 330 includes:

and a transmitting sub-module configured to transmit the sensing information to the VGMLC to transmit the sensing information to the HGMLC through the VGMLC.

Optionally, the transmitting sub-module includes:

a transmitting subunit configured to transmit target awareness information to the GMLC, the target awareness information being used to instruct the GMLC to generate a verification result of the user equipment according to the target awareness information;

and the generating subunit is configured to generate target perception willingness of the user equipment according to the target perception information and the verification result.

Optionally, the transmitting subunit is configured to:

Fig. 18 is a block diagram of a location-aware apparatus according to an exemplary embodiment, applied to a user equipment, as shown in fig. 18, the apparatus 400 includes: an acquisition module 410, a generation module 420, and a transmission module 430.

An obtaining module 410, configured to obtain notification call information sent by the AMF network element, where the notification call information is sent by the AMF network element when receiving a location awareness request sent by the GMLC, where the location awareness request is used to perceive attribute information of the user equipment;

a generation module 420 configured to generate a perceived privacy indication in response to a user selection of notification invocation information;

the sending module 430 is configured to send a perceived privacy indication to the AMF network element, where the perceived privacy indication is used to indicate a perceived intent of the user equipment.

Fig. 19 is a block diagram of a location aware apparatus according to an exemplary embodiment, applied to a UDM network element, as shown in fig. 19, the apparatus 500 includes: a receiving module 510, a determining module 520 and a transmitting module 530.

A receiving module 510 configured to receive an identifier of a user equipment transmitted by the GMLC;

a determining module 520 configured to determine, according to the identifier, target privacy configuration data corresponding to the user equipment from the preset privacy configuration data;

a transmitting module 530 configured to transmit the target privacy configuration data to the GMLC.

The specific manner in which the various modules perform the operations in the apparatus of the above embodiments have been described in detail in connection with the embodiments of the method, and will not be described in detail herein.

Embodiments of the present disclosure also provide a computer readable storage medium having stored thereon computer program instructions which, when executed by a processor, implement the steps of the location awareness method provided by the present disclosure.

The embodiment of the disclosure also provides an SAF network element, which includes: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to implement the steps of the location awareness method provided by the present disclosure when executing the executable instructions.

The disclosed embodiments also provide a GMLC comprising: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to implement the steps of the location awareness method provided by the present disclosure when executing the executable instructions.

The embodiment of the present disclosure further provides an AMF network element, including: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to implement the steps of the location awareness method provided by the present disclosure when executing the executable instructions.

The embodiment of the disclosure also provides a UE, including: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to implement the steps of the location awareness method provided by the present disclosure when executing the executable instructions.

The embodiment of the disclosure also provides a UDM network element, including: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to implement the steps of the location awareness method provided by the present disclosure when executing the executable instructions.

Fig. 20 is a block diagram illustrating a location-aware device 2000 according to an example embodiment. For example, the apparatus 2000 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like. But may be any of the SAF network elements, GMLC, AMF network elements, UE and UDM network elements described above.

Referring to fig. 20, apparatus 2000 may include one or more of the following components: a processing component 2002, a memory 2004, and a communication component 2016.

The processing component 2002 generally controls overall operation of the device 2000, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 2002 can include one or more processors 2020 to execute instructions to perform all or part of the steps of the latency measurement method. Further, the processing component 2002 may include one or more modules that facilitate interactions between the processing component 2002 and other components. For example, the processing component 2002 may include a multimedia module to facilitate interaction between the multimedia component and the processing component 2002.

The memory 2004 is configured to store various types of data to support operations at the apparatus 2000. Examples of such data include instructions for any application or method operating on the device 2000, contact data, phonebook data, messages, pictures, videos, and the like. The memory 2004 may be implemented by any type or combination of volatile or nonvolatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.

The communication component 2016 is configured to facilitate communication between the apparatus 2000 and other devices, either wired or wireless. The device 2000 may access a wireless network based on a communication standard, such as WiFi,2G or 3G, or a combination thereof. In one exemplary embodiment, the communication component 2016 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component 2016 further includes a Near Field Communication (NFC) module to facilitate short range communications. For example, the NFC module may 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, the apparatus 2000 may be implemented 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 Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic elements for a location awareness method.

In an exemplary embodiment, a non-transitory computer readable storage medium is also provided, such as memory 2004, including instructions executable by processor 2020 of apparatus 2000 to perform a latency measurement method. For example, the non-transitory computer readable storage medium may be ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.

The apparatus may be a stand-alone electronic device or may be part of a stand-alone electronic device, for example, in one embodiment, the apparatus may be an integrated circuit (Integrated Circuit, IC) or a chip, where the integrated circuit may be an IC or may be a collection of ICs; the chip may include, but is not limited to, the following: GPU (Graphics Processing Unit, graphics processor), CPU (Central Processing Unit ), FPGA (Field Programmable Gate Array, programmable logic array), DSP (Digital Signal Processor ), ASIC (Application Specific Integrated Circuit, application specific integrated circuit), SOC (System on Chip, SOC, system on Chip or System on Chip), etc. The integrated circuit or chip may be configured to execute executable instructions (or code) to implement the location awareness method described above. The executable instructions may be stored on the integrated circuit or chip or may be retrieved from another device or apparatus, such as the integrated circuit or chip including a processor, memory, and interface for communicating with other devices. The executable instructions may be stored in the processor, which when executed by the processor implements the location awareness method described above; alternatively, the integrated circuit or chip may receive the executable instructions through the interface and transmit them to the processor for execution, so as to implement the location awareness method described above.

In another exemplary embodiment, a computer program product is also provided, comprising a computer program executable by a programmable apparatus, the computer program having code portions for performing the above-described location awareness method when executed by the programmable apparatus.

In another exemplary embodiment, there is also provided a chip including a processor and an interface; the processor is used for reading the instruction to execute the positioning sensing method.

The disclosed embodiments also provide a communication system including: the SAF network element, the GMLC, the AMF network element, the UE and the UDM network element;

in one embodiment, the SAF network element may include the location awareness apparatus 100, the GMLC may include the location awareness apparatus 200, the AMF network element may include the location awareness apparatus 300, the UE may include the location awareness apparatus 400, and the UDM network element may include the location awareness apparatus 500.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A positioning and sensing method, applied to a sensing application function SAF network element, the method comprising:

and responding to the perception willingness, and sending the perception willingness to the perception request end.

2. The method of claim 1, wherein the sending the location-aware request to the GMLC comprises:

the location awareness request is sent to a network element open function device, NEF, to send the location awareness request to the GMLC through the NEF.

3. The method of claim 2, wherein the sending the perceived willingness to the perceived requester in response to the perceived willingness of the GMLC feedback comprises:

And responding to the perceived willingness fed back by the GMLC through the NEF, and sending the perceived willingness to the perceived request end.

4. A method according to any one of claims 1-3, wherein the attribute information comprises: at least one of location information, speed information, shape information, size information, or direction information of the user equipment.

5. A location awareness method applied to a mobile location center gateway, GMLC, the method comprising:

receiving sensing information sent by the AMF network element;

and sending the perception willingness to the perception request end.

6. The method according to claim 5, wherein said sending the location awareness request to an access and mobility management function, AMF, network element in case the user equipment allows location awareness, comprises:

Determining an identifier of the user equipment in response to the location-aware request;

transmitting the identifier to a unified data management, UDM, network element;

receiving target privacy configuration data corresponding to the user equipment, which is determined by the UDM network element from preset privacy configuration data according to the identifier;

and sending the location awareness request to the AMF network element under the condition that the user equipment is determined to allow location awareness according to the target privacy configuration data.

7. The method of claim 6, wherein the determining the identifier of the user device in response to the location-aware request comprises:

performing authorization verification on the positioning service of the SAF network element according to the positioning sensing request;

and determining the identifier of the user equipment under the condition that the positioning service authorization of the SAF network element is successful.

8. The method of claim 5, wherein the method further comprises:

generating perception rejection information of the user equipment under the condition that the positioning service authorization of the SAF network element fails;

and sending the perception rejection information to the perception request end through the SAF network element.

9. The method of claim 7, wherein the location-aware request includes service identification information, and wherein the performing authorization verification on the location service of the SAF network element according to the location-aware request includes:

authorizing the SAF network element to apply the positioning service under the condition that the service identification information is matched with preset service identification information;

10. The method of claim 6, wherein the determining an identifier of a user device in response to the location-aware request comprises:

acquiring associated data of the user equipment according to the positioning sensing request;

and determining the identifier of the user equipment according to the association data.

11. The method of claim 6, wherein the location-aware request includes a predetermined perceived time therein, and wherein the determining the identifier of the user device in response to the location-aware request comprises:

and under the condition that the current time reaches the preset perception time, determining the identifier of the user equipment according to the positioning perception request.

12. The method of claim 6, wherein the determining an identifier of a user device in response to the location-aware request comprises:

the identifier of the user equipment is determined if the target number is less than or equal to a perceived number threshold.

13. The method according to claim 12, wherein the method further comprises:

generating perception rejection information of the user equipment under the condition that the target number is larger than the perception number threshold;

14. The method according to claim 6, wherein said sending the location awareness request to the AMF network element if it is determined from the target privacy configuration data that the user equipment allows location awareness, comprises:

determining a network address of the AMF network element currently served by the user equipment under the condition that the user equipment allows positioning sensing according to the target privacy configuration data;

and sending the location awareness request to the AMF network element under the condition that the network address is within the preset service range of the GMLC.

15. The method of claim 14, wherein the method further comprises:

generating perception rejection information of the user equipment under the condition that the network address is not in the preset service range;

16. The method of claim 6, wherein the GMLC is a local mobile positioning center, HGMLC, gateway, the sending the positioning awareness request to an AMF network element comprising:

receiving a service network address of a visiting place mobile positioning center VGMLC gateway sent by the UDM network element;

and sending the positioning sensing request to the VGMLC according to the service network address so as to send the positioning sensing request to the AMF network element through the VGMLC.

17. The method of claim 16, wherein the method further comprises:

18. The method of claim 6, wherein the sending the location-aware request to an AMF network element comprises:

and under the condition that the user equipment needs to be verified based on the current position according to the privacy checking result, sending the positioning sensing request to the AMF network element, wherein the positioning sensing request is used for indicating a sensing instruction, and the positioning sensing request comprises type information of the SAF network element.

19. The method of claim 16, wherein the sending the location-aware request to the VGMLC to send the location-aware request to the AMF network element through the VGMLC comprises:

the positioning sensing request is sent to the VGMLC, the positioning sensing request is used for indicating the VGMLC to acquire a registration network address of the HGMLC according to the positioning sensing request, and the positioning sensing request is sent to the AMF network element under the condition that the registration network address is matched with a preset authorization address of the VGMLC; the positioning sensing request at least comprises at least one of service quality information, sensing time information or service type information.

20. The method of claim 19, wherein the method further comprises:

the positioning sensing request is sent to the VGMLC, the positioning sensing request is used for indicating the VGMLC to acquire the registration network address of the HGMLC according to the positioning sensing request, and sensing rejection information of the user equipment is generated under the condition that the registration network address is not matched with the preset authorization address of the VGMLC;

21. The method of claim 5, wherein the sending the sense-to-intent to the sense requester comprises:

under the condition that the user equipment is determined to be allowed to be perceived according to the perception willingness, sending a location service response to the perception request end through the SAF network element;

generating perception rejection information of the user equipment under the condition that the user equipment is not allowed to be perceived according to the perception willingness;

22. The method according to any one of claims 5-21, wherein the attribute information includes: at least one of location information, speed information, shape information, size information, or direction information of the user equipment.

23. A positioning awareness method, applied to a user device, the method comprising:

24. The method of claim 23, wherein the attribute information comprises: at least one of location information, speed information, shape information, size information, or direction information of the user equipment.

25. A location awareness system, the system comprising: sensing an application function SAF network element, a mobile positioning center gateway GMLC, a unified data management UDM network element, an access and mobility management function AMF network element and user equipment;

The GMLC responds to the positioning sensing request, determines an identifier of the user equipment and sends the identifier to a UDM network element;

the AMF network element generates sensing information according to the sensing privacy indication fed back by the user equipment and sends the sensing information to the GMLC;

and the GMLC generates the perception willingness of the user equipment according to the perception information and sends the perception willingness to the perception request terminal through the SAF network element.

26. The method of claim 25, wherein the attribute information comprises: at least one of position information, speed information, shape information, size information or direction information of the user equipment

27. A positioning sensing device, applied to a sensing application function SAF network element, the device comprising:

a sending module configured to send the location awareness request to a mobile location center gateway GMLC, where the location awareness request is used to instruct the GMLC to feed back an awareness intention of the user equipment according to the awareness information;

28. A location awareness apparatus for use with a mobile location center gateway, GMLC, the apparatus comprising:

29. A location-aware apparatus for use with a user device, the method comprising:

30. A aware application function SAF network element, comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to implement the steps of the method of any one of claims 1 to 4 when executing the executable instructions.

31. A mobile location center gateway, GMLC, comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to implement the steps of the method of any one of claims 5 to 22 when executing the executable instructions.

32. A user device, comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to implement the steps of the method of any one of claims 23 to 24 when executing the executable instructions.

33. A computer readable storage medium having stored thereon computer program instructions, characterized in that the program instructions when executed by a processor implement the steps of the method of any of claims 1 to 4, or the program instructions when executed by a processor implement the steps of the method of any of claims 5 to 22, or the program instructions when executed by a processor implement the steps of the method of any of claims 23 to 24.

34. A chip, comprising a processor and an interface; the processor being adapted to read instructions to perform the method of any one of claims 1 to 4 or the processor being adapted to read instructions to perform the method of any one of claims 5 to 22 or the processor being adapted to read instructions to perform the method of any one of claims 23 to 24.