WO2023165425A1

WO2023165425A1 - Communication method and apparatus, and device

Info

Publication number: WO2023165425A1
Application number: PCT/CN2023/078172
Authority: WO
Inventors: 许胜锋
Original assignee: 华为技术有限公司
Priority date: 2022-03-03
Filing date: 2023-02-24
Publication date: 2023-09-07
Also published as: CN116744436A

Abstract

Disclosed in the present application are a communication method and apparatus, and a device, which are used for simplifying a positioning method. The method comprises: a control plane network element acquiring position information of a terminal device, wherein the position information can be used for representing the position and/or the moving speed of the terminal device; and when the position information meets a first condition, the control plane network element sending first positioning period configuration information to the terminal device or an AN device to which the terminal device is connected, wherein the first positioning period configuration information can indicate a first positioning period corresponding to the first condition. By means of the solution, when position information of a terminal device meets a first condition, a control plane network element can send information for indicating a first positioning period corresponding to the first condition; in this way, the control plane network element can update a positioning period according to the position information of the terminal device, without the need to initiate a positioning process again, such that the interaction between a communication device that initiates a positioning request and the control plane network element can be reduced, thereby simplifying the positioning process.

Description

A communication method, device and equipment

Cross References to Related Applications

This application claims the priority of the Chinese patent application with the application number 202210203614.4 and the application title "a communication method, device and equipment" submitted to the China Patent Office on March 3, 2022, the entire contents of which are incorporated in this application by reference middle.

technical field

The present application relates to the technical field of communication, and in particular to a communication method, device and equipment.

Background technique

Unmanned aerial vehicle (uncrewed aerial vehicle, UAV) referred to as UAV, is a kind of unmanned aerial vehicle with autonomous power, which can perform various tasks through manual control or automatic driving. With the gradual maturity of UAV research and development technology and the significant reduction in manufacturing costs, UAVs have been widely used in various fields, such as agricultural plant protection, power inspection, police law enforcement, geological exploration, environmental monitoring, forest fire prevention, and film and television aerial photography and other fields.

UAV and UAV controller (UAV controller, UAV-C) together form an uncrewed aerial system (UAS). The unmanned aerial system service provider (UAS service supplier, USS) is responsible for the flight management of the UAV. The USS can manage the flight of UAV through a mobile communication system (for example, the 5th generation (5G) communication system).

During the UAV flight, the USS or UAV can initiate the positioning process for the UAV. At present, if the positioning cycle needs to be updated, the positioning process needs to be re-initiated; in this way, there are many signaling interactions between devices, and the process is relatively cumbersome.

Therefore, there is currently a need for a simplified positioning method.

Contents of the invention

The present application provides a communication method, device and equipment to simplify the positioning method.

In a first aspect, the embodiment of the present application provides a communication method. This method can be applied to the communication system shown in FIG. 1 or FIG. 2 below. The method includes:

The control plane network element may acquire the location information of the terminal device, where the location information may be used to represent the location and/or moving speed of the terminal device. When the location information satisfies the first condition, the control plane network element can send the first location cycle configuration information to the terminal device or the AN device accessed by the terminal device, where the first location cycle configuration information can be used to indicate the location corresponding to the first condition. The first positioning cycle.

With this method, when the location information of the terminal device satisfies the first condition, the control plane network element can send information indicating the first positioning cycle corresponding to the first condition; The positioning cycle is updated by using the location information of the system without re-initiating the positioning process, thereby reducing the interaction between the communication device (for example, terminal device or USS) that initiates the positioning request and the network element of the control plane, and simplifying the positioning process.

In some possible designs, the control plane network element may also receive the first information from the first communication device. Wherein, the first information may include a corresponding relationship between the first condition and the first positioning period. Through this design, the control plane network element can obtain the corresponding relationship between the first condition and the first positioning period, so as to prepare for determining the positioning information according to the condition.

In some possible designs, when the location information satisfies the first condition, the control plane network element may determine the first positioning cycle configuration information according to the first information and the location information. Through this design, when the location information of the terminal device satisfies the first condition, the control plane network element can determine the first location cycle according to the correspondence between the first condition and the first location cycle, thereby initiating the update of the location information without re-initiating The positioning process can reduce the interaction between the communication device (for example, terminal device or USS) that initiates the positioning request and the control plane network element, and simplify the positioning process.

In some possible designs, before obtaining the location information of the terminal device, the network element of the control plane may send the second positioning cycle configuration information to the terminal device or the AN device connected to the terminal device. Wherein, the second positioning cycle configuration information may be used to indicate the second positioning cycle. With this design, the control plane network element can provide the terminal device or the AN device connected to the terminal device with the second positioning cycle for positioning, so that the terminal device or the AN device connected to the terminal device can perform positioning accordingly.

In some possible designs, the control plane network element may send information indicating the second positioning period and location information to the second communication device. Through this design, when the control plane network element can be used to update the positioning period, when the control plane network element feeds back the position information to the second communication device, it will also feed back the second positioning period corresponding to the position information; thus, the second communication device The positioning period corresponding to the location information can be known, so that the movement of the terminal device can be managed more accurately.

In some possible designs, the control plane network element may receive information indicating the second positioning period from the first communication device. Through this design, the control plane network element can easily obtain the second positioning period.

In some possible designs, the first condition may include at least one of the following:

The location of the terminal device is within the range of the first location;

the location of the terminal device is outside the range of the second location;

The moving speed of the terminal device is within the first speed range;

The moving speed of the terminal device is outside the second speed range.

In a second aspect, the embodiment of the present application provides a communication method. This method can be applied to the communication system shown in FIG. 1 or FIG. 2 below. The method includes:

After acquiring the set movement information and location information of the terminal device, the control plane network element may send notification information to the second communication device according to the set movement information and location information. Wherein, the location information may be used to indicate the location and/or moving speed of the terminal device; the notification information may be used to indicate that the location information deviates from the set movement information.

In practical applications, the communication device that initiates the location request does not necessarily need to obtain the location information of the terminal device all the time. As described in Scenario 1 below, when the UAV is flying along a predetermined flight path, the USS does not need to frequently obtain the location information of the UAV. With this method, when the position information of the terminal device deviates from the set movement information, the control plane network element sends the notification information to the second communication device, so as to notify the position information of the terminal device that the position information deviates from the set movement information. shift. In this way, it is not necessary to send the location information to the second communication device every time the location information of the terminal device is acquired, thereby reducing signaling interaction.

In some possible designs, the control plane network element can send notification information to the second communication device according to the set movement information and location information in the following manner: when the offset between the location information and the set movement information is greater than or equal to When the first threshold is reached, the notification information is sent to the second communication device.

During the movement of the terminal device, if the deviation between the location information and the set movement information is small, it may be corrected back to the original route soon without affecting the movement of the terminal device according to the set movement information. With this design, when the offset between the location information and the set movement information reaches a certain threshold, the control plane network element sends notification information to the second communication device, so that the reported information can be made more effective, and the second communication device can also can be managed more effectively; in addition, When the deviation between the location information and the set movement information reaches a certain threshold, the control plane network element sends notification information to the second communication device, which can further reduce signaling interaction.

In some possible designs, before sending the notification information to the second communication device, the control plane network element may also obtain the first threshold. For example, the control plane network element may receive the first threshold from the first communication device. For another example, the control plane network element may obtain a preset first threshold. Through this design, the control plane network element can easily obtain the first threshold.

In some possible designs, the control plane network element may obtain the set movement information of the terminal device in the following manner: receiving the set movement information from the first communication device. Through this design, the network element of the control plane can conveniently obtain the setting movement information.

In some possible designs, setting the mobile information may include at least one of the following:

The set movement path of the terminal equipment;

The set position of the terminal equipment at at least one point in time;

The set moving speed of the terminal equipment;

The set speed range of the terminal equipment.

In some possible designs, the control plane network element sends the location information of the terminal device to the second communication device.

Optionally, the control plane network element may send the location information of the terminal device to the second communication device in the following implementation manner:

Implementation way 1: When the offset between the location information of the terminal device and the set movement information is greater than or equal to a first threshold, the control plane network element sends the location information of the terminal device to the second communication device.

In the first implementation, when the deviation between the location information of the terminal device and the set movement information is greater than or equal to the first threshold, the control plane network element not only indicates to the second communication device that the location information is relative to the set The notification information of the deviation of the mobile information also sends the location information of the terminal equipment. In this way, the second communication device can effectively manage the movement of the terminal device according to the location information.

Implementation manner 2: After obtaining the information indicating the first period, the control plane network element may send the location information of the terminal device to the second communication device according to the first period.

In the second implementation manner, the control plane network element sends the location information to the second communication device according to the first period. In this way, regardless of whether the location information of the terminal device deviates from the set mobile information, the second communication device can obtain the location information of the terminal device, thereby avoiding that the second communication device may not be able to receive the terminal device for a long time when simply adopting the first implementation method. The location information of the device, so that the second communication device can effectively manage the movement of the terminal device according to the location information.

In a third aspect, the embodiment of the present application provides a communication method. This method can be applied to the communication system shown in FIG. 1 or FIG. 2 below. The method includes:

After acquiring the information indicating the first period, the control plane network element may send the location information of the terminal device to the second communication device according to the first period. Wherein, the first period is greater than the positioning period of the terminal device.

With this method, the control plane network element sends location information to the second communication device according to the first cycle that is longer than the positioning cycle of the terminal device. In this way, regardless of whether the location information of the terminal device deviates from the set movement information, the second communication device can obtain the location information of the terminal device, so that the second communication device can effectively manage the movement of the terminal device according to the location information .

In addition, as mentioned above, the communication device that initiates the location request does not necessarily need to obtain the location information of the terminal device all the time. Through this method, the network element of the control plane expands the period of reporting location information, thereby reducing the signaling interaction between communication devices.

In some possible designs, after acquiring the set movement information and location information of the terminal device, the control plane network element may send notification information to the second communication device according to the set movement information and location information. Wherein, the location information may be used to indicate the location and/or moving speed of the terminal device; the notification information may be used to indicate that the location information deviates from the set movement information.

In practical applications, the communication device that initiates the location request does not necessarily need to obtain the location information of the terminal device all the time. As described in Scenario 1 below, when the UAV is flying along a predetermined flight path, the USS does not need to frequently obtain the location information of the UAV. With this design, when the position information of the terminal device deviates from the set movement information, the control plane network element sends the notification information to the second communication device, so as to notify the position information of the terminal device that there is a deviation from the set movement information. shift. In this way, it is not necessary to send the location information to the second communication device every time the location information of the terminal device is acquired, thereby reducing signaling interaction.

During the movement of the terminal device, if the deviation between the location information and the set movement information is small, it may be corrected back to the original route soon without affecting the movement of the terminal device according to the set movement information. With this design, when the offset between the location information and the set movement information reaches a certain threshold, the control plane network element sends notification information to the second communication device, so that the reported information can be made more effective, and the second communication device can also Based on this, more effective management can be carried out; in addition, when the offset between the location information and the set movement information reaches a certain threshold, the control plane network element sends notification information to the second communication device, which can further reduce signaling interaction .

The set movement path of the terminal equipment;

The set position of the terminal equipment at at least one point in time;

The set moving speed of the terminal equipment;

The set speed range of the terminal equipment.

In some possible designs, when the deviation between the location information of the terminal device and the set movement information is greater than or equal to a first threshold, the control plane network element sends the location information of the terminal device to the second communication device.

In this design, when the deviation between the location information of the terminal device and the set movement information is greater than or equal to the first threshold, the control plane network element not only indicates to the second communication device that the location information is relative to the set movement information The notification information of the offset occurs, and the location information of the terminal equipment is also sent. In this way, the second communication device can effectively manage the movement of the terminal device according to the location information.

In a fourth aspect, the embodiment of the present application provides a communication device, including a unit for performing each step in any one of the above aspects.

In a fifth aspect, the embodiment of the present application provides a communication device, including at least one processing element and at least one memory A storage element, wherein the at least one storage element is used to store programs and data, and the at least one processing element is used to read and execute the programs and data stored in the storage element, so that the method provided by any one of the above aspects of the present application is implemented.

In a sixth aspect, the embodiment of the present application further provides a computer program, which, when the computer program is run on a computer, causes the computer to execute the method provided in any one of the above aspects.

In a seventh aspect, the embodiment of the present application also provides a computer-readable storage medium, in which a computer program is stored, and when the computer program is executed by a computer, the computer is made to execute the method provided in any one of the above aspects.

In an eighth aspect, the embodiment of the present application further provides a chip, the chip is used to read a computer program stored in a memory, and execute the method provided in any one of the above aspects.

In a ninth aspect, the embodiment of the present application further provides a chip system, where the chip system includes a processor, configured to support a computer device to implement the method provided in any one of the above aspects. In a possible design, the chip system further includes a memory, and the memory is used to store necessary programs and data of the computer device. The system-on-a-chip may consist of chips, or may include chips and other discrete devices.

The technical effects that can be achieved by any one of the fourth to ninth aspects above can be described with reference to the technical effects that can be achieved by any possible design of any one of the first to fourth aspects above, and the repetition will not be discussed .

Description of drawings

FIG. 1 is an architecture diagram of a communication system provided by an embodiment of the present application;

FIG. 2 is an architecture diagram of another communication system provided by an embodiment of the present application;

FIG. 3 is a flow chart of a method for acquiring location information of a terminal device;

FIG. 4 is a flow chart of the first communication method provided by the embodiment of the present application;

FIG. 5 is a flowchart of a second communication method provided by an embodiment of the present application;

FIG. 6 is a flowchart of a third communication method provided by an embodiment of the present application;

FIG. 7 is a flowchart of a fourth communication method provided by an embodiment of the present application;

FIG. 8 is a flowchart of a fifth communication method provided by an embodiment of the present application;

FIG. 9 is a structural diagram of a communication device provided by an embodiment of the present application;

FIG. 10 is a structural diagram of a communication device provided by an embodiment of the present application.

Detailed ways

The present application provides a communication method, device and equipment to simplify the positioning method. Among them, the method, device and equipment are based on the same technical conception. Since the principles of solving the problems are similar, the implementation of the device, device and method can be referred to each other, and the repetition will not be repeated.

Through the solution provided by the embodiment of the present application, the control plane network element can obtain the location information of the terminal device, where the location information can be used to represent the location and/or moving speed of the terminal device. When the location information satisfies the first condition, the control plane network element can send the first location cycle configuration information to the terminal device or the AN device accessed by the terminal device, where the first location cycle configuration information can be used to indicate the location corresponding to the first condition. The first positioning cycle. Through this solution, when the location information of the terminal device satisfies the first condition, the control plane network element can send information indicating the first positioning period corresponding to the first condition; The position information of the system updates the positioning cycle without re-initiating the positioning process, thereby reducing the communication equipment (such as terminal equipment or USS) that initiates the positioning request and the control plane. The interaction between network elements simplifies the positioning process.

In the following, some terms used in the embodiments of the present application are explained, so as to facilitate the understanding of those skilled in the art.

1) Communication equipment, generally refers to equipment with communication functions. Exemplarily, the communication device may be, but not limited to, a terminal device, an AN device, an access point, a core network (core network, CN) device, and the like.

2) A terminal device is a device that provides voice and/or data connectivity to users. The terminal equipment may also be called user equipment (user equipment, UE), mobile station (mobile station, MS), mobile terminal (mobile terminal, MT) and so on.

For example, the terminal device may be a handheld device with a wireless connection function, a vehicle-mounted device, a roadside unit (roadside unit, RSU) in the Internet of Vehicles communication, a UAV, and the like. At present, examples of some terminal devices are: mobile phone (mobile phone), tablet computer, notebook computer, palmtop computer, mobile internet device (mobile internet device, MID), wearable device, virtual reality (virtual reality, VR) device, enhanced Augmented reality (AR) equipment, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical surgery, smart grid Wireless terminals in transportation safety, wireless terminals in smart city, wireless terminals in smart home, etc.

3) The AN device is a device for connecting a terminal device to a wireless network in a mobile communication system. As a node in the radio access network, the AN device may also be called a base station, a radio access network (radio access network, RAN) node (or device), and an access point (access point, AP).

At present, some examples of AN equipment are: new generation Node B (generation Node B, gNB), transmission reception point (transmission reception point, TRP), evolved Node B (evolved Node B, eNB), wireless network controller (radio network controller, RNC), node B (Node B, NB), base station controller (base station controller, BSC), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved NodeB, or home Node B , HNB), or base band unit (base band unit, BBU), etc.

In addition, in a network structure, the AN device may include a centralized unit (centralized unit, CU) node and a distributed unit (distributed unit, DU) node. This structure separates the protocol layers of the AN device, and the functions of some protocol layers are placed in the CU for centralized control, and the remaining part or all of the functions of the protocol layers are distributed in the DU, and the CU centrally controls the DU.

4) The CN device is a network element included in the CN part of the mobile communication system. The CN device can connect terminal devices to different data networks, and perform services such as billing, mobility management, session management, and user plane forwarding. In mobile communication systems of different standards, names of CN devices with the same function may be different. However, the embodiment of the present application does not limit the specific name of the CN device with each function.

For example, in the 4th generation ( ^4th generation, 4G) mobile communication system (ie, long term evolution (LTE), the network element responsible for functions such as access control, security control, and signaling coordination is a mobility management entity (Mobile management entity, MME); the network element serving as the anchor point of local mobile management is the serving gateway (serving gateway, S-GW); as the anchor point of the handover of the external data network, it is responsible for Internet protocol (internet protocol, IP) address allocation The network element of the packet data network (PDN) gateway (PDN gateway, P-GW); the network element that stores user-related data and subscription data is the home subscription server (home subscriber server, HSS); responsible for policy, plan A network element with a charging function is called a policy and charging control rule function (policy and charging rule function, PCRF) network element.

For another example, in the 5th generation (5 ^th generation, 5G) mobile communication system, according to the specific logical function division, The core network can be divided into a control plane (control plane, CP) and a user plane (user plane, UP). Wherein, network elements responsible for control plane functions in the CN may be collectively referred to as control plane network elements, and network elements responsible for user plane functions may be collectively referred to as user plane network elements. Specifically, on the user plane, the network element serving as an interface of the data network and responsible for functions such as user plane data forwarding is a user plane function (user plane function, UPF) network element. In the control plane, network elements responsible for access control and mobility management functions are called access and mobility management function (access and mobility management function, AMF) network elements; network elements responsible for session management and control policy execution are called It is a session management function (session management function, SMF) network element; the network element responsible for managing subscription data, user access authorization and other functions is called a unified data management (unified data management, UDM) network element; responsible for billing, policy control functions The network element is called a policy control function (Policy and charging function, PCF) network element; an application function (application function, AF) network element is responsible for transmitting the requirements of the application side to the network side.

5) The data network (data network, DN) is a network located outside the mobile communication system. For example, the DN may be a packet data network (PDN), such as the Internet (Internet), an IP Multi-media Service (IMS) network, some application-specific data networks, Ethernet, IP The local network and the like are not limited in this application. A variety of services can be deployed on the DN, which can provide data and/or voice services for terminal equipment.

A service flow transmitted in a DN may be called a data flow.

In the embodiments of the present application, as for the number of nouns, unless otherwise specified, it means "singular noun or plural noun", that is, "one or more". "At least one" means one or more, and "plurality" means two or more. "And/or" describes the association relationship of associated objects, indicating that there may be three kinds of relationships, for example, A and/or B may indicate: A exists alone, A and B exist simultaneously, and B exists independently. The character "/" generally indicates that the contextual objects are an "or" relationship. For example, A/B means: A or B. "At least one (individual) of the following" or similar expressions refer to any combination of these items (individuals), including any combination of a single item (individuals) or a plurality of item (individuals).

In addition, it should be understood that in the description of this application, words such as "first" and "second" are only used to distinguish the purpose of description, and should not be interpreted as indicating or implying relative importance, nor should they be understood as To indicate or imply an order.

In addition, "greater than" in the embodiments of the present application may be replaced with "greater than or equal to", and "less than or equal to" may be replaced with "less than".

The communication system applied in the embodiment of the present application will be described below with reference to the accompanying drawings.

FIG. 1 shows the architecture of a possible communication system to which the communication method provided by the embodiment of the present application is applicable. As shown in FIG. 1 , the communication system includes three parts: terminal equipment (UE is taken as an example in the figure), a mobile communication system and a DN. Wherein, the mobile communication system provides access service and connection service for terminal equipment.

A terminal device is an entity capable of receiving and transmitting wireless signals on the user side. The terminal device can communicate with the AN device through the air interface technology (for example, NR or LTE technology), and needs to access the DN through the mobile communication system where the AN device is located. Terminal devices may also communicate through an air interface technology (for example, NR or LTE technology). Optionally, the terminal device can serve as a relay device for other data collectors or other terminal devices, so that these devices can communicate with the DN through the mobile communication system.

A mobile communication system can access at least one DN, and the same DN can also be accessed by at least one mobile communication system. Wherein, the mobile communication system may include two parts, AN and CN.

The network device deployed in the AN is an AN device, which is specifically responsible for functions such as wireless access, wireless resource management on the air interface side, quality of service (QoS) management, data compression and encryption, and user plane data forwarding.

Network elements deployed in the CN may be collectively referred to as CN equipment. Taking the CN in the 5G mobile communication system as an example, the functions of the main network elements in the CN are introduced in detail below. From the above description, it can be seen that the network elements in the CN of the 5G mobile communication system can be divided into two types: control plane network elements and user plane network elements.

The user plane network element includes UPF, which is mainly responsible for packet data packet forwarding, QoS control, charging information statistics, etc. For example, UPF can receive packet data packets from DN, and send packet data packets to terminal equipment through AN equipment; UPF can also receive packet data packets from terminal equipment through AN equipment, and forward them to DN.

The network elements of the control plane are mainly responsible for service process interaction, delivering data packet forwarding policies and QoS control policies to the user plane. Control plane network elements mainly include: AMF, SMF, PCF, AF, network exposure function (network exposure function, NEF), UDM, authentication server function (authentication server function, AUSF), network slice selection function (network slice selection function, NSSF ), network function (network function, NF) repository function (NRF), unified data repository (unified data repository, UDR), network data analysis function (network data analytics function, NWDAF).

Among them, AMF is mainly responsible for UE access management and mobility management, for example, responsible for UE state maintenance, UE reachability management, non-mobility management (mobility management, MM) non-access-stratum (non-access-stratum) , NAS) message forwarding, attachment and detachment, and gateway selection. In addition, when the AMF provides services for a session in the UE, the AMF may provide the session with storage resources on the control plane to store the session identifier and the SMF identifier associated with the session identifier.

The SMF is mainly responsible for UE session management, for example, managing the establishment and deletion of PDU sessions, maintaining the PDU session context, selecting user plane network elements, redirecting user plane network elements, Internet protocol (internet protocol, IP) address allocation, and bearer establishment , modification and release, and QoS control.

The PCF is mainly responsible for policy control, for example, providing policy rules on the control plane, and performing charging based on traffic.

AF is mainly responsible for providing various business services. Specifically, the AF can provide business services by interacting with the core network. For example, business services include assisting in data routing decisions, assisting policy control functions in policy management, and so on.

The NEF is mainly responsible for providing the framework, authentication and interface related to the opening of network capabilities, and transferring information between the network functions of the mobile communication system and other network functions (for example, third-party applications).

AUSF is mainly responsible for the access certification of communication equipment in the 3rd generation partnership project (3GPP) and non-3GPP networks.

NSSF is mainly responsible for selecting network slices for UE. For example, the NSSF may determine the network slices that the UE is allowed to access according to the UE's slice selection assistance information, subscription information, and the like.

The NRF is mainly responsible for the registration and discovery of other network elements, and can provide storage and selection functions for network function entity information for other network elements.

The UDM is mainly responsible for the management of user subscription data, for example, the storage and management of the UE identity, and the access authorization information of the UE.

The UDR is mainly responsible for storing and obtaining contract data, for example, storing and obtaining policy data for the PCF, storing and obtaining contract data for the UDM, and so on.

Network Data Analytics Function (NWDAF) is mainly responsible for analyzing network data. For example, the MWDAF can acquire network data from other network elements (eg, AF), and can also collect data from operation administration and maintenance (OAM); it can also provide analysis results to other network elements (eg, AF).

When implementing location positioning services (LoCation Services, LCS), on the basis of the architecture shown in Figure 1, the communication system may also include communication equipment for LCS. The communication equipment involved in the LCS will be described in detail below with reference to FIG. 2 .

The communication system may further include: a positioning server, a location management function (location management function, LMF), a gateway mobile location center (GMLC), and a location retrieval function (location retrieval function, LRF).

Wherein, the positioning server may be an LCS client (LCS client) or an AF. In this application, the USS can serve as the LCS client or the AF, and send a positioning request for the terminal device to the mobile communication system, so as to obtain the location information of the terminal device. In this application, USS can also be replaced by UAV traffic management (UTM).

The LMF is mainly responsible for managing and controlling the positioning request of the UE. Specifically, the LMF can send positioning-related auxiliary information to the UE through the LTE positioning protocol (LPP); the LMF can control the positioning measurement through the NR positioning protocol A (NR positioning protocol A, NRPPa) between the LMF and the AN device , for example, to control the uplink measurement performed by the AN device or the downlink measurement performed by the UE. In addition, the LMF may also select a positioning scheme of the network. For example, the LMF may select a positioning scheme according to at least one of the following: positioning server, accuracy and delay required by QoS, and positioning capabilities of UE and AN equipment. When multiple positioning schemes are used for mixed positioning, LMF can combine the received results and estimate the position accordingly.

The GMLC is mainly responsible for transmitting positioning-related information, such as positioning requests and location information, between the positioning server and network elements on the control plane.

The LRF obtains UE-related location information for an external LCS client. LRF can interact with a separate GMLC, and can also be integrated with GMLC to obtain positioning information.

In addition, some communication devices in the architecture shown in FIG. 1 can also implement functions for the LCS, which will be described below.

The NEF can be used to transfer location-related information between the GMLC and the AF, for example, a request for obtaining location information (also referred to as a location request), location information, and the like. In addition, in this application, NEF can also be UAS NF. UAS NF is a network element that provides services for drones in the 5G mobile communication system, and its function is the same as that of NEF.

The AMF can be used to transfer location-related information between the LMF and other communication devices (eg, AN device, UE or GMLC), for example, a request for obtaining location information, location information, location data, etc.

AN devices and UEs can be used to provide positioning data for the LMF.

Figures 1 and 2 also show interfaces between multiple network elements in the communication system. For example, N1 is the interface between the UE and the control plane of the core network, and the UE and the AMF can interact through the N1 interface. N2 is an interface between the access network device and the core network control plane, and the access network device and the AMF can interact through the N2 interface. N3 is a communication interface between the access network equipment and the UPF, and is used to transmit user data. N4 is an interface between SMF and UPF, and is used for policy configuration on UPF, etc. N6 is the interface between UPF and DN. N8 is the interface between AMF and UDM. NL1 is the interface between AMF and LMF. NL2 is the interface between AMF and GMLC. NL5 is the interface between NEF and LRF. NL6 is the interface between UDM and GMLC. N33 is the interface between NEF and AF. Interfaces between network elements of the control plane in the CN can be implemented in the form of corresponding service interfaces, as shown in FIG. 1 .

It should be noted that the communication systems shown in FIG. 1 and FIG. 2 do not limit the applicable communication systems of the embodiments of the present application. Therefore, the communication method provided by the embodiment of the present application can also be applied to communication systems of various standards, such as: LTE communication system, 5G communication system, sixth generation (The 6th Generation, 6G) communication system and future communication system system, vehicle to everything (V2X), long-term evolution-vehicle networking (LTE-vehicle, LTE-V), vehicle-to-vehicle (vehicle to vehicle, V2V), vehicle networking, machine type communications (Machine Type Communications, MTC), Internet of Things (Internet of Things, IoT), Long Term Evolution-Machine to Machine (LTE-Machine to Machine, LTE-M), Machine to Machine (M2M), Internet of Things, etc. In addition, it should be noted that the embodiment of the present application does not limit the names of the network elements in the communication system. For example, in communication systems of different standards, each network element may have other names; When elements are fused in the same physical device, the physical device can also have other names.

In order to facilitate the understanding of the present invention, referring to FIG. 3 , taking the USS as the LCS client and the terminal device as the UE as an example, a current method for obtaining location information of the terminal device is introduced. The method may be a mobile terminated location request (mobile terminated location request, MT-LR) method.

S301: The LCS client sends an LCS service request (LCS Service Request) to the GMLC to request to obtain the location information of the UE.

Wherein, the LCS service request includes: UE's identity (eg, generic public subscription identity (GPSI) or user permanent identifier (subscription permanent identifier, SUPI)), required QoS (required QoS).

Optionally, the service request may also include information for indicating the LCS client (for example, the identifier of the LCS client).

S302: The GMLC sends a get request (Nudm_UECM_Get Request) to the UDM to request to get the address of the AMF currently serving the UE.

Wherein, the acquisition request includes the identifier of the UE.

Optionally, the acquisition request can also be used to acquire an LCS privacy profile (LCS privacy profile) for the LCS client. At this time, the acquisition request may also include information used to indicate the LCS client.

S303: The GMLC receives a get response (Nudm_UECM_Get Response) from the UDM.

Wherein, the acquisition response includes the address of the AMF currently serving the UE.

Optionally, when the obtaining request includes information for indicating the LCS client, the obtaining response may further include the LCS privacy configuration file. When the LCS privacy configuration file indicates that the LCS client is authorized to obtain the location information of the UE, the GMLC may perform S304.

S304: The GMLC sends a location information providing request (Namf_Location_ProvidePositioningInfo Request) to the AMF to request to obtain the location information of the UE.

Wherein, the request for providing location information may include the identity of the UE and the required QoS.

S305: If the UE is in an idle state, the AMF may initiate a network-triggered service request (network triggered service request) procedure to establish a signaling connection between the AMF and the UE.

S305 is an optional step. For example, when the UE is in a connected state, S305 may not be executed.

S306: The AMF selects the LMF.

S307: The AMF sends a determine location request (Nlmf_location_DetermineLocation Request) to the LMF to request to acquire the location information of the UE.

Wherein, the determining and positioning request may also include a cell identity (serving cell identity) of the serving cell of the UE.

When the LCS client requests to periodically obtain the location information of the UE (in other words, the LCS client requests to periodically locate the UE), the messages in steps S301, S304 and S307 may also include a positioning period.

S308: The LMF initiates a positioning procedure for the UE.

Optionally, the LMF may obtain the positioning data of the UE by interacting with the UE and/or the AN device serving the UE, and calculate the position of the UE according to the positioning data.

In addition, when the LCS client requests to periodically obtain the location information of the UE, the LMF may send a positioning period to the AN device serving the UE and/or serving the UE through the AMF. In this way, the UE and/or the AN device serving the UE can measure positioning data according to the positioning period, and send the positioning data to the LMF. The LMF can then calculate the location of the UE based on this.

S309: The LMF sends a determine location response (Nlmf_location_DetermineLocation Response) to the AMF.

Wherein, the positioning determination response may include: a positioning result. Wherein, the positioning result may include: location information of the UE and accuracy rate of the location information.

S310: The AMF sends a location information providing response (Namf_Location_ProvidePositioningInfo Response) to the GMLC.

Wherein, the location information providing response may include a positioning result.

S311: The GMLC sends an LCS service response (LCS Service Response) to the LCS client.

Wherein, the LCS service response may include a positioning result.

Optionally, when the USS is the AF, the LCS client in the method shown in FIG. 3 can be replaced by the AF, and the interaction between the LCS client and the GMLC can be replaced by the interaction between the AF and the GMLC through the NEF. For example, in S301, the AF may send an LCS service request to the GMLC through the NEF, so as to request to obtain the location information of the UE. In S311, the GMLC may send an LCS service response to the AF through the NEF.

Optionally, the UE may also request to acquire the location information of the UE. At this time, the UE may send a positioning request to the LMF through the AMF, and the positioning request includes the identity of the UE. When the UE requests to obtain the location information of the UE periodically, the positioning period may also be included in the positioning request. Through S308 and S309 in the method shown in FIG. 3 , the AMF can obtain the positioning result of the UE; then, the AMF can send the positioning result to the UE.

The method shown in Figure 3 has at least one of the following problems:

Problem 1: When updating the positioning cycle, there are many signaling interactions between devices, and the process is relatively cumbersome.

Specifically, when periodic positioning is required, the communication device that initiates the positioning request (for example, the UE, the LCS client as the USS or the AF) includes the positioning cycle in the request for obtaining the location information of the terminal device. In this way, when the positioning cycle needs to be updated, the communication device that initiates the positioning request needs to re-initiate the positioning request process (that is, the process shown in FIG. 3 ), which results in more signaling interactions between devices and the process is more cumbersome.

The following scenario is used as an example to illustrate the occurrence of this problem:

Scenario 1: When the UE is a UAV, the USS can obtain the scheduled flight path of the UAV before the UAV flies. The USS can periodically locate the UAV through the mobile communication system, so as to obtain the real flight path of the UAV. By comparing the intended flight path with the actual flight path, the USS can determine whether the UAV is following the intended flight path.

In Scenario 1, the speed of the UAV may not be uniform during flight. When the moving speed of the UAV is small or the UAV is stationary, the position offset obtained by the USS each time is very small, therefore, it is not necessary to use the same positioning cycle as when the UAV is moving at a high speed for positioning. At this time, if the USS initiates an update of the positioning cycle, it needs to re-initiate the positioning request process, resulting in more signaling interactions between devices.

Problem 2: The LMF sends the location information of the UE to the communication device that initiates the positioning request according to the positioning cycle, resulting in more signaling interactions between the devices.

Taking the above scenario 1 as an example, when the UAV is flying according to the predetermined flight path, the USS does not need to frequently obtain the location information of the UAV. At this time, if the LMF still sends the location of the UE to the communication device that initiates the positioning request according to the positioning cycle information, it will result in more signaling interactions between devices.

The solutions provided by the present application will be described below in conjunction with the accompanying drawings.

An embodiment of the present application provides a communication method, which can be applied to the communication system shown in FIG. 1 or FIG. 2 , and can be used to solve the above problem 1. Referring to the flow chart shown in FIG. 4 , the flow of the method will be described in detail.

S401: The control plane network element acquires location information of the terminal device. Wherein, the location information may be used to represent the location and/or moving speed of the terminal device.

In the embodiment of this application, the control plane network element may be, but not limited to, one of the following: LMF, GMLC, NEF; the terminal device may be, but not limited to, a UAV or an unmanned vehicle.

Wherein, the control plane network element may perform S401 in one of the following situations:

Scenario 1: The control plane network element receives a request from the second communication device for obtaining the location information of the terminal device.

Scenario 2: The control plane network element receives a request from the second communication device for obtaining the location information of the terminal device, and the request includes a positioning period. When the positioning period is reached, the control plane network element executes S401.

Wherein, in situation 1 and situation 2, the second communication device may be one of the following: AF, LCS client, terminal device. Among them, AF and LCS clients can be used as USS. The request for obtaining the location information of the terminal device may be, but not limited to, at least one of the following: LCS service request, location information provision request, and location determination request.

Optionally, the control plane network element obtains the location information of the terminal device in one of the following ways:

Method 1: The control plane network element determines the location information of the terminal device according to the received positioning data from the terminal device or the AN device connected to the terminal device.

1. The location of the terminal equipment:

For example, the positioning data may include: a timing advance (time advance, TA) and a direction of arrival (angle of arrival, AoA) of the terminal device. Through the TA of the terminal device, the control plane network element can determine the distance between the terminal device and the AN device; through the AoA, the control plane network element can determine the direction of the terminal device relative to the AN device. Then, according to the location of the AN device, the control plane network element can determine the location of the terminal device.

2. The mobile speed of the terminal equipment:

For example, the positioning data may include: the TA and AoA of the terminal device at time 1, and the TA and AoA of the terminal device at time 2. Through the method in 1, the control plane network element can determine the position 1 of the terminal device at time 1 and the position 2 at time 2. Then, the control plane network element may determine that the moving speed of the terminal device is (position 2 - position 1)/(time 2 - time 1). In order to accurately determine the moving speed of the terminal device, the control plane network element may obtain positions at multiple times, and determine the moving speed of the terminal device accordingly.

It should be understood that the above method for determining the location information of the terminal device is only an example, and other existing methods for determining the location information of the terminal device may also be used, which is not limited in this application.

Manner 2: The control plane network element receives the location information of the terminal device from the third communication device.

Wherein, the location information of the terminal device may be determined by the third communication device, and the determination method may refer to method 1, which will not be repeated here.

In the second manner, the control plane network element may be a GMLC or NEF, and the third communication device may be an LMF. Specifically, when the control plane network element is GMLC, the control plane network element can receive the location information of the terminal equipment from LMF through AMF; when the control plane network element is NEF, the control plane network element can receive through GMLC and AMF in turn from LMF The location information of the terminal device.

Method 3: The control plane network element can determine the location information of the terminal device according to the global positioning system (global positioning system, GPS) information of the terminal device.

1. The location of the terminal equipment:

The control plane network element may determine the position indicated by the GPS information of the terminal device as the position of the terminal device.

2. The mobile speed of the terminal equipment:

The control plane network element can obtain the GPS information of the terminal device at different times, and determine the moving speed of the terminal device according to the GPS information at different times. For example, the control plane network element may acquire the GPS information 1 of the terminal device at time 3 and the GPS information 2 of the terminal device at time 4. GPS information 1 indicates position 3, and GPS information 2 indicates position 4. The control plane network element may determine that the moving speed of the terminal device is (position 4 - position 3)/(time 4 - time 3). In order to accurately determine the moving speed of the terminal device, the control plane network element may obtain positions at multiple times, and determine the moving speed of the terminal device accordingly.

S402: When the location information satisfies the first condition, the control plane network element sends the first location cycle configuration information to the terminal device or the access network AN device connected to the terminal device. Wherein, the first positioning cycle configuration information may be used to indicate the first positioning cycle corresponding to the first condition, or the first positioning cycle configuration information may be used to indicate the first positioning cycle.

Wherein, the first positioning cycle configuration information may directly indicate the first positioning cycle, for example, the first positioning cycle configuration information is the first positioning cycle (for example, 25ms). The first positioning period configuration information may also indirectly indicate the first positioning period. For example, when the value of the first positioning period configuration information is 1, it indirectly indicates that the first positioning period is 25 ms. In addition, the configuration information of the first positioning period may be carried in an existing message or in a new message, which is not limited in this application.

Optionally, the control plane network element sends the first positioning cycle configuration information to the terminal device or the AN device connected to the terminal device through the AMF network element.

Optionally, in an implementation scenario of the method shown in FIG. 4, the first condition may include, but is not limited to, at least one of the following:

Condition 1: the location of the terminal device is within the range of the first location;

Condition 2: the location of the terminal device is outside the range of the second location;

Condition 3: the moving speed of the terminal device is within the first speed range;

Condition 4: the moving speed of the terminal device is outside the second speed range.

The details of each condition will be described below.

For condition 1:

In some possible implementation manners, the first location range may be a geographic range, for example, a first area, or an area whose shortest linear distance from the first area is within the first distance range. An example of a first area is a no-fly area. Another example of the first area is an allowed flight area.

In some other possible implementation manners, the first location range may also be a service range of the communication device. For example, when the service range of the communication device falls within the aforementioned geographical range, the first location range may be indicated by the service range of the communication device. Wherein, the information used to indicate the service scope of the communication device may include at least one of the following: one or more An AN device identity (identity, ID), one or more cell identities (cell identity, cell ID), and one or more tracking area identities (tracking area identity, TAI).

For condition 2:

For the specific content of the second location range, please refer to the description of condition 1, except that the first location range is replaced by the second location range, which will not be repeated here.

It should be understood that the first location range and the second location range may be the same or different, and may also partially overlap.

For condition 3 and condition 4:

It should be understood that the first speed range and the second speed range may be the same or different, and may also partially overlap.

This method provides a variety of conditions, and by flexibly setting the conditions, the control plane network element can flexibly adjust the positioning period.

Optionally, in an implementation scenario of the method shown in Figure 4, the above method further includes:

S403: The control plane network element receives first information from the first communication device. Wherein, the first information may include a corresponding relationship between the first condition and the first positioning period.

Wherein, the first communication device may be, but not limited to, one of the following: AMF, NEF, LCS client, and AF.

For example, when the control plane network element is an LMF, the first communication device is an AMF. The LMF may sequentially receive the first information from the LCS client through the AMF and the GMLC; or, the LMF may sequentially receive the first information from the AF through the AMF, the GMLC and the NEF.

For another example, when the control plane network element is a GLMC, the first communication device is a NEF or LCS client. When the first communication device is the NEF, the GMLC can receive the first information from the AF through the NEF.

For another example, when the control plane network element is an NEF, the first communication device is an AF.

In addition, the first information may be a message including the correspondence between the first condition and the first positioning cycle (for example, a request for obtaining the location information of the terminal device), or may be an information element in the message. Specifically, when the first information is an information element, the first information may reuse an information element in an existing message, or may be a new information element in an existing message.

For example, the first information may be a table of correspondence between the first condition and the first positioning period, and the table of correspondence may be as shown in Table 1. Wherein, for the specific content of the first condition, reference may be made to the description of the first condition above, which will not be repeated here.

Table 1

It should be understood that the first information may also include correspondences between other conditions and positioning periods, which is not limited in the present application.

In addition, the present application does not limit the execution order of S403 and S401. For example, S403 can be executed first, and then S401 is executed; S401 can also be executed first, and then S403 can be executed; S401 and S403 can also be executed simultaneously.

Optionally, the above method also includes:

S404: When the location information satisfies the first condition, the control plane network element determines first positioning period configuration information according to the first information and the location information.

For example, the first condition is condition 1-1, that is, the first condition is that the location of the terminal device is within the first location range. When the location indicated by the location information of the terminal device is within the first location range, the control plane network element may select a first location cycle corresponding to the first condition, and generate first location cycle configuration information for indicating the first location cycle.

For another example, the first condition is condition 1-2, that is, the first condition is that the location of the terminal device is outside the first location range. When the location indicated by the location information of the terminal device is outside the first location range, the control plane network element may select a first location cycle corresponding to the first condition, and generate first location cycle configuration information for indicating the first location cycle.

For another example, the first condition is condition 2-1, that is, the first condition is that the moving speed of the terminal device is within the first speed range. When the moving speed indicated by the location information of the terminal device is within the first speed range, the control plane network element may select the first positioning cycle corresponding to the first condition, and generate the first positioning cycle configuration information indicating the first positioning cycle .

For another example, the first condition includes condition 1-1 and condition 2-1, that is, the first condition includes: the location of the terminal device is within the first location range, and the moving speed of the terminal device is within the first speed range. When the position indicated by the position information of the terminal device is within the first position range, and the moving speed indicated by the position information of the terminal device is within the first speed range, the control plane network element may select the first positioning period corresponding to the first condition, And generate first positioning cycle configuration information for indicating the first positioning cycle.

Through this method, the control plane network element can select a positioning period corresponding to a condition satisfied by the position to perform positioning according to the position of the terminal device. In this way, when the positioning period needs to be updated, the control plane network element can update the positioning period by itself without re-initiating the positioning process, thereby reducing the communication device (for example, a terminal device or USS) that initiates the positioning request and the control plane network element. Interaction simplifies the positioning process.

Optionally, in an implementation scenario of the method shown in FIG. 4, before S401, the above method further includes:

S405: The control plane network element sends the second positioning cycle configuration information to the terminal device or the AN device connected to the terminal device, where the second positioning cycle configuration information is used to indicate the second positioning cycle.

Wherein, the second positioning cycle configuration information may directly indicate the second positioning cycle, for example, the second positioning cycle configuration information is the second positioning cycle (for example, 10 ms). The second positioning cycle configuration information may also indirectly indicate the second positioning cycle, for example, when the value of the second positioning cycle configuration information is 2, it indirectly indicates that the second positioning cycle is 10 ms. In addition, the configuration information of the second positioning cycle may be carried in an existing message or in a new message, which is not limited in this application.

Optionally, the control plane network element sends the second positioning period configuration information to the terminal device or the AN device connected to the terminal device through the AMF network element.

Optionally, before sending the configuration information of the second positioning period to the terminal device, the control plane network element may obtain the second positioning period in one of the following ways.

Manner 1: The control plane network element receives the information indicating the second positioning period from the first communication device.

For example, when the control plane network element is an LMF, the first communication device is an AMF. The LMF may sequentially receive the information indicating the second positioning period from the LCS client through the AMF and the GMLC; or, the LMF may sequentially receive the information indicating the second positioning period from the AF through the AMF, the GMLC and the NEF.

For another example, when the control plane network element is a GLMC, the first communication device is a NEF or LCS client. When the first communication device is the NEF, the GMLC may receive the information indicating the second positioning period from the AF through the NEF.

In manner 1, the second positioning period may be a default positioning period or an initial positioning period. The information used to indicate the second positioning period may directly be the second positioning period, or may indirectly indicate the second positioning period. In addition, the information used to indicate the second positioning cycle may be included in an existing message or in a new message. When the information for indicating the second positioning period is included in the existing message, the message may be a request for obtaining the location information of the terminal device (for example, an LCS service request, a request for providing location information, or a request for determining location).

Mode 2: The control plane network element receives information indicating at least one positioning period from the first communication device, and selects the smallest period among the at least one positioning period as the second positioning period.

Wherein, the manner in which the control plane network element receives the information indicating at least one positioning period from the first communication device can refer to the manner 1, except that the second positioning period is replaced with at least one positioning period, which will not be repeated here.

In addition, the information used to indicate at least one positioning cycle may be information used to indicate a correspondence between at least one condition and at least one positioning cycle (for example, the above-mentioned first information). Wherein, at least one condition may include the first condition, and at least one positioning cycle may include the first positioning cycle. At least one condition and at least one positioning period may be in a one-to-one relationship, or may be in a many-to-one relationship.

Way 3: When the location information of the terminal device satisfies the second condition, the control plane network element determines the second positioning period corresponding to the second condition. That is to say, during the moving process of the terminal device, the network element of the control plane first determines the second positioning period according to the position information 1 of the terminal device; , the first positioning period is determined, so that the positioning period can be updated multiple times.

Among them, the second condition may include, but is not limited to, at least one of the following:

Condition 1: the location of the terminal device is within the range of the third location;

Condition 2: the location of the terminal device is outside the range of the fourth location;

Condition 3: the moving speed of the terminal device is within the third speed range;

Condition 4: The moving speed of the terminal device is outside the fourth speed range.

For the specific content of condition 1, please refer to condition 1, just replace the first position range with the third position range; for the specific content of condition 2, refer to condition 2, just replace the second position range with the fourth position range; For the specific content of condition three, please refer to condition 3, just replace the first speed range with the third speed range; for the specific content of condition four, refer to condition 4, just replace the second speed range with the fourth speed range, I won't repeat them here.

Optionally, the third position range is different from the first position range, and/or the fourth position range is different from the second position range, and/or the third speed range is different from the first speed range, and/or the fourth speed range Different from the second speed range. For example, the first location range is the service range of cell 1, and the third location range is the service range of cell 2; both the first speed range and the third speed range are 0-5 kilometers per hour (km/h). For another example, both the first location range and the third location range are service areas of the cell 1; the first speed range is 0-5 km/h, and the third speed range is 20-30 km/h. For another example, the first location range is the service area of cell 1, the third location range is the service area of cell 2; the first speed range is 0-5 km/h, and the third speed range is 20-30 km/h. For another example, the second location range is the service range of cell 3, and the fourth location range is the service range of cell 4; both the second speed range and the fourth speed range are 5-10 km/h. For another example, both the second location range and the fourth location range are service areas of the cell 3; the second speed range is 0-5 km/h, and the fourth speed range is 5-10 km/h. For another example, the first location range and the third location range are both the service range of cell 1; the second location range and the fourth location range are both the service range of cell 3; the second speed range is 0-5km/h, and the fourth The speed range is 5-10km/h.

Way 4: The control plane network element obtains the pre-configured second positioning period. For example, the control plane network element is pre-configured with a second positioning period, and the second positioning period may be a default positioning period or an initial positioning period.

Optionally, after the control plane network element receives the first information, the control plane network element determines to use the preconfigured second positioning period, and sends the second positioning period configuration information to the terminal device or the AN device connected to the terminal device.

Through this method, the control plane network element can notify the terminal device of the second positioning period, so as to update the positioning period according to the position information obtained through the second positioning period.

S406: The control plane network element sends information for indicating the second positioning period and location information to the second communication device.

Wherein, the second communication device may be one of the following: AF, LCS client, and terminal device.

In addition, the control plane network element may send the second communication device a message for The information indicating the second positioning period and the location information may also be sent to the second communication device through a new message to indicate the information indicating the second positioning period and the location information.

In addition, the present application does not limit the execution order of S402 and S406. For example, S402 can be executed first, and then S406; or S406 can be executed first, and then S402 can be executed; S402 and S406 can also be executed simultaneously.

Through this method, when the control plane network element can be used to update the positioning period, when the control plane network element feeds back the position information to the second communication device, it will also feed back the second positioning period corresponding to the position information; thus, the second communication device The positioning period corresponding to the location information can be known, so that the movement of the terminal device can be managed more accurately.

The embodiment of the present application provides another communication method, which can be applied to the communication system shown in FIG. 1 or FIG. 2 and can be used to solve the above problem 2. Referring to the flow chart shown in FIG. 5 , the flow of the method will be described in detail.

S501: The network element of the control plane acquires the setting movement information of the terminal device.

In the embodiment of this application, the control plane network element may be, but not limited to, one of the following: LMF, GMLC, NEF; the terminal device may be, but not limited to, a UAV or an unmanned vehicle. When the terminal device is a UAV, setting movement information may also be referred to as setting flight information.

S502: The control plane network element acquires location information of the terminal device. Wherein, the location information is used to represent the location and/or moving speed of the terminal device.

For specific content of S502, reference may be made to S401, which will not be repeated here.

In addition, the present application does not limit the execution order of S501 and S502, S501 may be executed first, and then S502 may be executed; S502 may be executed first, and then S501 may be executed; S501 and S502 may be executed simultaneously.

S503: The control plane network element sends notification information to the second communication device according to the set movement information and location information. Wherein, the notification information may be used to indicate that the location information deviates from the set movement information. In other words, when the position information of the terminal device deviates from the set movement information, the control plane network element may send the notification information to the second communication device to notify the second communication device that the following event occurs: the position information of the terminal device is relatively Deviation occurs in setting mobile information. The location information is offset relative to the set movement information, which can also be understood as the location information is different from the set movement information, or the location information is different from any position information in the set movement information.

Wherein, the second communication device may be one of the following: AF, LCS client, and terminal device. Among them, AF and LCS clients can be used as USS.

In addition, the notification information may be a message for indicating that the location information is offset relative to the set movement information, or may be an information element in the message. Specifically, when the notification information is an information element, the notification information may reuse an information element in an existing message, or may be a new information element in an existing message. For example, the information element may be a first indication field, and when the value of this field is the first value, it may indicate that the location of the terminal device deviates from the set movement information. For another example, the information element may be a second indication field, and when the value of this field is the second value, it may indicate that the moving speed of the terminal device deviates from the set moving information.

In practical applications, the communication device that initiates the location request does not necessarily need to obtain the location information of the terminal device all the time. As mentioned in Scenario 1 above, when the UAV is flying according to the predetermined flight path, the USS does not need to frequently acquire the UAV’s position configuration information. With this method, when the position information of the terminal device deviates from the set movement information, the control plane network element sends the notification information to the second communication device, so as to notify the position information of the terminal device that the position information deviates from the set movement information. shift. In this way, it is not necessary to send the location information to the second communication device every time the location information of the terminal device is acquired, thereby reducing signaling interaction.

Optionally, in S501, the control plane network element may obtain the set movement information of the terminal device in the following manner: the control plane network element receives the set movement information from the first communication device.

For example, when the control plane network element is an LMF, the first communication device is an AMF. The LMF may sequentially receive the set movement information from the LCS client through the AMF and the GMLC; or, the LMF may sequentially receive the set movement information from the AF through the AMF, the GMLC and the NEF.

For another example, when the control plane network element is a GLMC, the first communication device is a NEF or LCS client. When the first communication device is the NEF, the GMLC can receive the set movement information from the AF through the NEF.

In addition, setting the mobile information may reuse information elements in an existing message (for example, a request for obtaining location information of a terminal device), or may be a new information element in an existing message.

Through this method, the control plane network element can conveniently obtain the setting movement information.

Optionally, in an implementation scenario of the method shown in Figure 5, setting the movement information includes at least one of the following:

1. The set moving path of the terminal device: for example, a series of trace information or path curve information on the predetermined moving path.

2. The set position of the terminal device at at least one point in time (also referred to as the position that the terminal device should arrive at at least one point in time): for example, the set geographic location of the terminal device at time point 1, at time point 1 Set Geolocation 2 on point 2 etc. The representation form of the set position of the terminal device at at least one time point may be a correspondence table between at least one time point and the set position.

3. The set moving speed of the terminal device: the set moving speed can be a fixed value, and the terminal device should always move at the set moving speed during the moving process. The set moving speed may also be a changing value, for example, changing with time, or changing according to the location or location range of the terminal device. When setting the moving speed as a variable value, setting the moving information may include setting a corresponding relationship between the moving speed and a change amount (for example, time, the location or location range of the terminal device).

4. The set speed range of the terminal device: the set speed range can be a fixed range, and the terminal device should always move at the speed of the set speed range during the moving process. The set speed range may also be a changing value, for example, changing with time, or changing according to the location or location range of the terminal device. When setting the speed range as a variable value, setting the movement information may include setting a correspondence between the speed range and the change amount (for example, time, the location of the terminal device or the location range).

The method provides a variety of set movement information, so that the network element of the control plane can flexibly judge whether the location information of the terminal device deviates from the set movement information according to the set movement information.

Optionally, in S503, when the deviation between the location information and the set movement information is greater than or equal to the first threshold, the control plane network element may send notification information to the second communication device.

Optionally, the first threshold may include at least one of the following: a maximum offset value between the position of the terminal device and the set moving path, a maximum offset value between the position of the terminal device and the set position, and a maximum offset value between the position of the terminal device and the set position. The maximum offset value between the moving speed and the set moving speed, and the maximum offset value between the moving speed of the terminal device and the set speed range.

The following example illustrates "when the deviation between the location information and the set movement information is greater than or equal to the first threshold, the control plane network element may send notification information to the second communication device".

For example, when the set movement information is the set movement route of the terminal device, the location information may indicate the position of the terminal device, and the first threshold is the maximum offset value between the position of the terminal device and the set movement route. If the shortest distance between the location indicated by the location information and the set moving path is greater than or equal to the first threshold, the control plane network element may send notification information to the second communication device to notify the second communication device that the location of the terminal device is relative to the set path. The fixed mobile information is offset.

For another example, when the mobile information is set as the set position of the terminal device at at least one time point, the position information may indicate the position of the terminal device at the first time point, and the first threshold is the distance between the position of the terminal device and the set position. The maximum offset value of . If the distance between the position of the terminal device at the first time point and the set position of the terminal device at the first time point is greater than or equal to the first threshold, the control plane network element may send notification information to the second communication device to notify the second communication device The position of the terminal device of the second communication device deviates relative to the set movement information.

For another example, when the set moving information is the set moving speed of the terminal device, and the set moving speed is a fixed value, the location information may represent the moving speed of the terminal device, and the first threshold value is the difference between the moving speed of the terminal device and the setting value. The maximum offset between movement speeds. If the difference between the moving speed represented by the location information and the set moving speed of the terminal device is greater than or equal to the first threshold, the control plane network element may send notification information to the second communication device to notify the second communication device of the terminal device The movement speed of is offset from the set movement information.

For another example, when the set movement information is the set movement speed of the terminal device, and the set movement speed is a value that changes with time, the location information may indicate the movement speed of the terminal device in the first time period, and the first threshold is The maximum offset value between the mobile speed of the terminal device and the set mobile speed. If the difference between the moving speed of the terminal device in the first time period and the set moving speed of the terminal device in the first time period is greater than or equal to the first threshold, the control plane network element may send notification information to the second communication device, Notifying the second communication device that the moving speed of the terminal device deviates from the set moving information.

For another example, when the set movement information is the set movement speed of the terminal device, and the set movement speed is a value that changes with the location, the location information may indicate the movement speed of the terminal device at the first location, and the first threshold is the terminal The maximum offset between the device's movement speed and the set movement speed. If the difference between the moving speed of the terminal device at the first location and the set moving speed of the terminal device at the first location is greater than or equal to the first threshold, the control plane network element may send notification information to the second communication device to notify The moving speed of the terminal device of the second communication device deviates from the set moving information.

For another example, when the set movement information is the set speed range of the terminal device, and the set speed range is a fixed value, the location information may represent the moving speed of the terminal device, and the first threshold is the moving speed of the terminal device and the setting Maximum offset value between velocity ranges. If the deviation between the moving speed represented by the location information and the set speed range of the terminal device is greater than or equal to the first threshold, the control plane network element may send notification information to the second communication device to notify the second communication device of the terminal device The movement speed of is offset from the set movement information.

For another example, when the movement information is set as the set speed range of the terminal device, and the set speed range is a value that changes with time, the location information may indicate the moving speed of the terminal device in the second time period, and the first threshold is The maximum offset value between the mobile speed of the terminal device and the set speed range. If the deviation between the moving speed of the terminal device in the second time period and the set speed range of the terminal device in the second time period is greater than or equal to the first threshold, the network element on the control plane may report to the second The communication device sends notification information to notify the second communication device that the movement speed of the terminal device deviates from the set movement information.

For another example, when the movement information is set as the set speed range of the terminal device, and the set speed range is a value that changes with the location, the location information may indicate the moving speed of the terminal device at the second location, and the first threshold is the terminal The maximum offset between the device's moving speed and the set speed range. If the deviation between the moving speed of the terminal device at the second location and the set speed range of the terminal device at the second location is greater than or equal to the first threshold, the control plane network element may send notification information to the second communication device to notify The moving speed of the terminal device of the second communication device deviates from the set moving information.

For another example, when the set movement information includes: the set movement path of the terminal device and the set movement speed of the terminal device, and the set movement speed is a fixed value, the location information may represent the position and movement speed of the terminal device; A threshold value includes: the maximum offset value between the position of the terminal device and the set moving path (hereinafter referred to as the first maximum offset value), the maximum offset value between the terminal device's moving speed and the set moving speed ( Hereinafter, it is referred to as the second maximum offset value for short). If the shortest distance between the position represented by the position information and the set moving path is greater than or equal to the first maximum offset value, the difference between the moving speed represented by the position information and the set moving speed of the terminal device is greater than or equal to For the second maximum offset value, the control plane network element may send notification information to the second communication device to notify the second communication device that the position and moving speed of the terminal device deviate from the set moving information.

Optionally, in an implementation scenario of the method shown in FIG. 5, before sending the notification information to the second communication device, the above method further includes:

S504: The control plane network element may obtain the first threshold.

In some possible manners, the control plane network element may acquire the first threshold from the second communication device. Wherein, the first threshold may reuse information elements in an existing message (for example, a request for obtaining location information of a terminal device), or may be a new information element in an existing message. In addition, the first threshold and the predetermined movement information may be included in the same message, or may be included in different messages.

In some other possible manners, the control plane network element may obtain a pre-configured first threshold. That is to say, the first threshold is preconfigured in the network element of the control plane, for example, stored in memory of the network element of the control plane in advance.

In addition, the present application does not limit the execution sequence of S501, S502 and S504. For example, S501 and S504 can be executed first, and then S502; or S502 can be executed first, and then S501 and S504 can be executed; S501, S502, and S504 can also be executed at the same time; and S501, S504, and S502 can also be executed in the following order.

Optionally, in an implementation scenario of the method shown in Figure 5, the above method further includes:

S505: The control plane network element sends the location information of the terminal device to the second communication device.

A possible implementation manner of "the control plane network element sending the location information of the terminal device to the second communication device" will be described below.

The first implementation mode is described below with an example.

For example, when the set movement information is the set movement route of the terminal device, the location information may indicate the position of the terminal device, and the first threshold is the maximum offset value between the position of the terminal device and the set movement route. If the shortest distance between the location indicated by the location information and the set moving route is greater than or equal to the first threshold, the control plane network element may send the location information of the terminal device to the second communication device.

For another example, when the mobile information is set as the set position of the terminal device at at least one time point, the position information may indicate the position of the terminal device at the first time point, and the first threshold is the distance between the position of the terminal device and the set position. The maximum offset value of . If the distance between the position of the terminal device at the first time point and the set position of the terminal device at the first time point is greater than or equal to the first threshold, the control plane network element may send the position information of the terminal device to the second communication device.

For another example, when the set moving information is the set moving speed of the terminal device, and the set moving speed is a fixed value, the location information may represent the moving speed of the terminal device, and the first threshold value is the difference between the moving speed of the terminal device and the setting value. The maximum offset between movement speeds. If the difference between the moving speed represented by the location information and the set moving speed of the terminal device is greater than or equal to the first threshold, the control plane network element may send the location information of the terminal device to the second communication device.

For another example, when the set movement information is the set movement speed of the terminal device, and the set movement speed is a value that changes with time, the location information may indicate the movement speed of the terminal device in the first time period, and the first threshold is The maximum offset value between the mobile speed of the terminal device and the set mobile speed. If the difference between the moving speed of the terminal device in the first time period and the set moving speed of the terminal device in the first time period is greater than or equal to the first threshold, the control plane network element may send the terminal device's moving speed to the second communication device location information.

For another example, when the set movement information is the set movement speed of the terminal device, and the set movement speed is a value that changes with the location, the location information may indicate the movement speed of the terminal device at the first location, and the first threshold is the terminal The maximum offset between the device's movement speed and the set movement speed. If the difference between the moving speed of the terminal device at the first location and the set moving speed of the terminal device at the first location is greater than or equal to the first threshold, the control plane network element may send the location information of the terminal device to the second communication device .

For another example, when the set movement information is the set speed range of the terminal device, and the set speed range is a fixed value, the location information may represent the moving speed of the terminal device, and the first threshold is the moving speed of the terminal device and the setting Maximum offset value between velocity ranges. If the deviation between the moving speed represented by the location information and the set speed range of the terminal device is greater than or equal to the first threshold, the control plane network element may send the location information of the terminal device to the second communication device.

For another example, when the movement information is set as the set speed range of the terminal device, and the set speed range is a value that changes with time, the location information may indicate the moving speed of the terminal device in the second time period, and the first threshold is The maximum offset value between the mobile speed of the terminal device and the set speed range. If the deviation between the moving speed of the terminal device in the second time period and the set speed range of the terminal device in the second time period is greater than or equal to the first threshold, the control plane network element may send the terminal device's moving speed to the second communication device location information.

For another example, when the movement information is set as the set speed range of the terminal device, and the set speed range is a value that changes with the location, the location information may indicate the moving speed of the terminal device at the second location, and the first threshold is the terminal The maximum offset between the device's moving speed and the set speed range. If the deviation between the moving speed of the terminal device at the second location and the set speed range of the terminal device at the second location is greater than or equal to the first threshold, the control plane network element may send the location information of the terminal device to the second communication device .

For another example, when the set movement information includes: the set movement path of the terminal device and the set movement speed of the terminal device, and the set movement speed is a fixed value, the location information may represent the position and movement speed of the terminal device; A threshold includes: the maximum offset value between the position of the terminal device and the set moving path (hereinafter referred to as the first maximum offset value), and the maximum offset value between the moving speed of the terminal device and the set moving speed (hereinafter referred to as the second maximum offset value for short). If the shortest distance between the position represented by the position information and the set moving path is greater than or equal to the first maximum offset value, the difference between the moving speed represented by the position information and the set moving speed of the terminal device is greater than or equal to For the second maximum offset value, the control plane network element may send the location information of the terminal device to the second communication device.

In addition, the control plane network elements can pass existing messages (for example, determine location response, provide location information response, LCS At least one of the service response, the notification message for notifying the positioning result, etc.) sends the location information of the terminal device to the second communication device, or sends the location information of the terminal device to the second communication device through a new message.

In addition, when this implementation mode 1 is combined with S503, this application does not limit the order in which the control plane network element sends the location information and notification information of the terminal device. For example, the control plane network element may send the location information of the terminal device first, and then send the notification information; it may also send the notification information first, and then send the location information; or it may send the location information and the notification information at the same time.

Implementation mode 2: The control plane network element periodically sends the location information of the terminal device to the second communication device.

In the second implementation manner, the control plane network element can perform the operations of A1-A2.

A1: The control plane network element acquires information indicating the first period.

Optionally, in A1, the control plane network element may acquire the information indicating the first period in the following manner: the control plane network element receives the information indicating the first period from the first communication device.

The first period may indicate a period in which the control plane network element sends the location information of the terminal device. Wherein, the first period is different from the positioning period of the terminal device, for example, the first period may be greater than the positioning period of the terminal device.

The information used to indicate the first period may directly indicate the first period, for example, the information used to indicate the first period is the first period (for example, 200ms). The information for indicating the first period may also indirectly indicate the first period. For example, when the value of the information for indicating the first period is 5, it indirectly indicates that the first period is 200ms.

In addition, the information used to indicate the first period may be a message used to indicate the first period, or may be an information element in the message. Specifically, when the information used to indicate the first cycle is an information element, the information used to indicate the first cycle may multiplex an information element in an existing message, or may be a new information element in an existing message. For example, the information element may be a third indication field, and when the value of this field is a third value, it may indicate the first period.

In addition, the present application does not limit the order in which the network element of the control plane receives the setting movement information of the terminal device (ie S501 ) and the information used to indicate the first cycle. For example, the network element on the control plane may first receive the set movement information of the terminal equipment, and then receive the information indicating the first period; it may also receive the information indicating the first period first, and then receive the set movement information; The setting movement information and the information indicating the first period are received simultaneously.

A2: The control plane network element sends the location information of the terminal device to the second communication device according to the first period.

In some possible manners, the control plane network element sends the location information of the terminal device to the second communication device in a first period. For example, the second positioning period is 10ms, and the first period is 200ms. The control plane network element acquires the location information of the terminal device through the second positioning period. Assume that the start times of the second positioning period and the first period are both time 0. The control plane network element can obtain 20 pieces of location information of the terminal device in a first period, and send the latest location information to the second communication device at time 0+200ms.

In some other possible manners, the control plane network element may send the location information of the terminal device to the second communication device according to the first period and the last time when the location information and/or notification information was sent.

For example, the control plane network element may reset the timer to zero and start the timer after receiving the information indicating the first period. During the working process of the timer, if the control plane network element sends location information and/or notification information to the second communication device (for example, the control plane network element executes S503), the control plane network element resets the timer to zero and restarts the timer. When the time of the timer reaches the first period, the control plane network element sends the location information of the terminal device to the second communication device.

In addition, in step A2, the control plane network element may send the second The communication device sends the location information of the terminal device, and may also send the location information of the terminal device to the second communication device through a new message.

The embodiment of the present application provides another communication method, which can be applied to the communication system shown in FIG. 1 or FIG. 2 and can be used to solve the above-mentioned problem 2. Referring to the flow chart shown in FIG. 6 , the flow of the method will be described in detail.

S601: The control plane network element acquires information used to indicate the first cycle.

For specific content, reference may be made to step A1 of the method shown in FIG. 5 , which will not be repeated here.

S602: The control plane network element sends the location information of the terminal device to the second communication device according to the first period. Wherein, the first period is greater than the positioning period of the terminal device.

In some possible manners, the control plane network element sends the location information of the terminal device to the second communication device in a first period. For specific content, refer to step A2 in the method shown in FIG. 5 , which will not be repeated here.

In some other possible manners, the control plane network element may send the location information of the terminal device to the second communication device according to the first period and the last time when the location information and/or notification information was sent. For specific content, refer to step A2 in the method shown in FIG. 5 , which will not be repeated here.

Optionally, in an implementation scenario of the method shown in Figure 6, the method further includes:

B1: The network element of the control plane obtains the setting movement information of the terminal device.

B2: The control plane network element obtains the location information of the terminal device. Wherein, the location information is used to represent the location and/or moving speed of the terminal device.

B3: The control plane network element sends notification information to the second communication device according to the set movement information and location information.

Wherein, for the specific content of B1-B3, reference may be made to S501-S503, which will not be repeated here.

Optionally, in an implementation scenario of the method shown in FIG. 6, before sending the notification information to the second communication device, the above method further includes:

B4: The control plane network element may obtain the first threshold.

Wherein, for the specific content of B4, reference may be made to S504, which will not be repeated here.

Optionally, in an implementation scenario of the method shown in Figure 6, the above method further includes:

B5: When the deviation between the location information of the terminal device and the set movement information is greater than or equal to the first threshold, the control plane network element sends the location information of the terminal device to the second communication device.

Wherein, for the specific content of B5, reference may be made to the implementation manner 1 in S505, which will not be repeated here.

The embodiment of the present application provides another communication method, which can be applied to the communication system shown in FIG. 1 or FIG. 2 . This method shows one possible example of the method shown in FIG. 4 . Referring to the flowchart shown in FIG. 7 , the method will be described by taking the terminal device as a UAV, the control plane network element as an LMF, and the second communication device as an AF as a USS as an example.

S701: The AF sends first information to the NEF.

Wherein, the first information may include a corresponding relationship between at least one positioning period and at least one condition. Wherein, at least one condition includes the first condition, and at least one positioning cycle may include the first positioning cycle.

Optionally, any condition includes at least one of the following:

Condition A: The position of the UAV is within the range of the first predetermined position;

Condition B: the position of the UAV is outside the range of the second predetermined position;

Condition C: the moving speed of the UAV is within the first predetermined speed range;

Condition D: The moving speed of the UAV is outside the second predetermined speed range.

Wherein, the specific content of condition A can refer to the condition 1 in the method shown in Figure 4, but the first position range is replaced with the first predetermined position range; the specific content of condition B can refer to the condition in the method shown in Figure 4 2. Just replace the second position range with the second predetermined position range; the specific content of condition C can refer to condition 3 in the method shown in Figure 4, but replace the first speed range with the first predetermined speed range ; The specific content of condition D can refer to the condition 4 in the method shown in FIG.

For different conditions, at least one of the first predetermined position range, the second predetermined position range, the first predetermined speed range, and the second predetermined speed range is different. For example, for the first condition, the first predetermined position range is the first position range, the second predetermined position range is the second position range, the first predetermined speed range is the first speed range, and the second predetermined speed range is the second speed range ; For the second condition, the first predetermined position range is the third position range, the second predetermined position range is the fourth position range, the first predetermined speed range is the third speed range; the second predetermined speed range is the fourth speed range. The first position range is different from the third position range, and/or the second position range is different from the fourth position range, and/or the first speed range is different from the third speed range, and/or the second speed range is different from the fourth speed range The range is different.

The correspondence between at least one positioning cycle and at least one condition is illustrated below with an example.

For example, the first condition is: the position of the UAV is located in the second area, and the second area is an area whose distance from the no-fly zone is greater than or equal to the first distance threshold (in other words, the distance between the position of the UAV and the no-fly zone is greater than or equal to the first distance threshold); the second condition is: the position of the UAV is located in the third area, and the third area is an area less than the first distance threshold with the distance from the no-fly zone (in other words, the position of the UAV and the no-fly zone The distance of the zone is less than the first distance threshold). The positioning period corresponding to the first condition (for example, 25ms) is greater than the positioning period corresponding to the second condition (for example, 15ms). In this way, the closer the UAV is to the no-fly zone, the smaller the positioning cycle; when the UAV is close to the no-fly zone, more position information can be obtained with a smaller positioning cycle, so that the UAV can be effectively controlled to prevent the UAV from flying into the no-fly zone .

For another example, the lower the moving speed of the UAV, the longer the positioning period. The first condition is: the moving speed of the UAV is in the range of 0-5 km/h; the second condition is: the moving speed of the UAV is in the range of 20-30 km/h. The positioning period corresponding to the first condition is smaller than the positioning period corresponding to the second condition. When the moving speed of the UAV is small, the USS does not need to obtain the position information frequently; at this time, Extending the positioning period can reduce signaling interaction and save transmission resources.

Optionally, in S701, the AF may also send information indicating the default positioning period (also called the initial positioning period, for details, refer to the second positioning period in the method 1 in the method shown in FIG. 4 ) to the NEF. .

Optionally, the first information and/or the information used to indicate the default positioning period may be included in a request (for example, an event exposure subscription (NEF_EventExposure_subscribe)) for requesting to obtain the location information of the UAV.

S702: The NEF sends first information to the GMLC.

Optionally, in S702, the NEF may also send information for indicating a default positioning period to the GMLC.

Wherein, the first information and/or the information used to indicate the default location period may be included in the request for requesting the location information of the UAV (for example, provide a location request (Ngmlc_Location_ProvideLocation Request).

S703: The GMLC sends the first information to the AMF.

Optionally, in S703, the GMLC may also send information for indicating a default positioning period to the AMF.

Wherein, the first information and/or the information used to indicate the default positioning cycle may be included in the request for requesting the location information of the UAV (for example, providing location information request (Namf_Location_ProvidePositioningInfo Request)).

S704: The AMF sends the first information to the LMF.

Optionally, in S704, the AMF may also send information for indicating a default positioning period to the LMF.

Wherein, the first information and/or the information for indicating the default positioning period may be included in the request for obtaining the location information of the UAV (for example, determine the location request (Nlmf_location_DetermineLocation Request)).

S705: The LMF sends information for indicating the second positioning period to the UAV.

In some possible implementation manners, the second positioning period may be the aforementioned default positioning period.

In some other possible implementation manners, the second positioning period may be the smallest positioning period among the above at least one positioning period. At this time, in S701-S704, the information for indicating the default positioning period may not be included.

Optionally, in S705, the information used to indicate the second positioning period may be carried in the request for requesting to obtain the location information of the UAV (for example, LCS Periodic-Triggered Invoke Request (LCS Periodic-Triggered Invoke Request)).

S706: The UAV reports the location information of the UAV to the LMF according to the second positioning cycle; correspondingly, the LMF acquires the location information of the UAV.

Wherein, the position information may represent the position or moving speed of the UAV.

For the specific content of S706, reference may be made to S401, which will not be repeated here.

S707: The LMF may send information for indicating the positioning period currently used by the UAV to the AF through the GMLC.

Wherein, the information used to indicate the positioning cycle currently used by the UAV may be included in a notification message (for example, Nlmf_Location_Notify) used to notify location information.

In addition, the notification message may also include a location result of the UAV. The positioning result may include: the position and/or moving speed of the UAV. In this way, after receiving the positioning result, the AF can judge whether the UAV is flying according to the predetermined flight information (for example, a predetermined flight path), so as to manage the UAV.

Optionally, the sequence of steps S706 and S707 is not limited.

S708: The LMF determines a first positioning period according to the acquired location information and first information.

For specific content of S708, reference may be made to S404, which will not be repeated here.

S709: If the LMF determines that the positioning period needs to be updated, for example, when the first positioning period is different from the second positioning period, the LMF may send information indicating the first positioning period (ie, the updated positioning period) to the UAV.

For the specific content of S709, reference may be made to S402, which will not be repeated here.

S710: Each network element performs positioning according to the first positioning period.

For specific content of S710, reference may be made to S308, which will not be repeated here.

In addition, the present application does not limit the execution order of S707 and S708. S707 can be executed first, and then S708 can be executed; S708 can also be executed first, and then S707 can be executed; S707 and S708 can also be executed by notification.

In addition, S709 and S710 are optional steps. For example, when the first positioning period and the second positioning period are the same, S709 and S710 may not be performed, and each network element still performs positioning according to the second positioning period.

In some possible implementation manners, the GMLC may also determine the first positioning period according to the location information and the first information. At this time, in S703 and S704, the GMLC may not send the first information to the LMF through the AMF. In S706, after acquiring the location information of the UAV, the LMF sends the location information of the UAV to the GMLC through the AMF. Then, the GMLC determines the first positioning period by referring to the manner in S708; and sends information indicating the first positioning period to the LMF through the AMF. Then, the LMF can perform subsequent operations in FIG. 7 .

In some other possible implementation manners, the NEF may also determine the first positioning period according to the location information and the first information. At this time, in S702-S704, the NEF may not send the first information to the LMF through the GMLC and the AMF. In S706, after acquiring the location information of the UAV, the LMF sends the location information of the UAV to the NEF through the AMF and the GMLC. Then, the NEF determines the first positioning period by referring to the manner in S708; and sends information for indicating the first positioning period to the LMF through the GMLC and the AMF. Then, the LMF can perform subsequent operations in FIG. 7 .

Through this method, the control plane network element can obtain the corresponding relationship between at least one condition and at least one positioning cycle. When the location information of the terminal device meets the first condition, the control plane network element can update the positioning cycle without re-initiating positioning. In this way, the interaction between the communication device (for example, the terminal device or USS) that initiates the positioning request and the control plane network element can be reduced, and the positioning process can be simplified.

An embodiment of the present application provides a communication method, which can be applied to the communication system shown in FIG. 1 or FIG. 2 . This method shows a possible example of the method shown in FIG. 5 or FIG. 6 . Referring to the flowchart shown in FIG. 8 , the method will be described by taking the terminal device as a UAV, the control plane network element as a GMLC, and the second communication device as an AF as a USS as an example.

S801: The AF sends the set movement information of the UAV to the NEF.

Wherein, the set mobile information may include at least one of the following:

The set moving path of the UAV;

A set position of the UAV at at least one point in time;

The set movement speed of the UAV;

The set speed range of the UAV.

For the specific content of setting the mobile information above, please refer to the description of “setting the mobile information” in the embodiment shown in FIG. 5 , which will not be repeated here.

Optionally, in S801, the AF may also send information for indicating the first threshold to the NEF. For the specific content of the first threshold, reference may be made to the description of S503, which will not be repeated here.

Wherein, setting the movement information and/or the information used to indicate the first threshold may be included in the request (eg, NEF_EventExposure_subscribe) for requesting to obtain the location information of the UAV.

S802: The NEF sends the set movement information of the UAV to the GMLC.

Optionally, in S802, the NEF may also send information for indicating the first threshold to the GMLC.

Wherein, setting the movement information and/or the information for indicating the first threshold may be included in the request for requesting the location information of the UAV (for example, providing a location request (Ngmlc_Location_ProvideLocation Request).

S803: The GMLC sends a request for obtaining the location information of the UAV to the AMF (for example, a request for providing location information (Namf_Location_ProvidePositioningInfo Request)), so as to request to obtain the location information of the UAV.

For the specific content of this step, reference may be made to S304, which will not be repeated here.

S804: The AMF selects the LMF, and sends a request for obtaining the location information of the UAV to the LMF (for example, a determination location request (Nlmf_location_DetermineLocation Request)).

For the specific content of this step, reference may be made to S306-S307, which will not be repeated here.

S805: The LMF sends a positioning request to the UAV (for example, an LCS Periodic-Triggered Invoke Request (LCS Periodic-Triggered Invoke Request)).

Optionally, if periodic positioning is requested, the messages in steps S801-S805 may include a positioning period.

S806: The LMF acquires the location information of the UAV; wherein, the location information of the UAV may represent the location and/or moving speed of the UAV.

For the specific content of S806, reference may be made to S401, which will not be repeated here.

S807: The LMF sends a location result (location result) to the GMLC, where the location result may include UAV location information.

Wherein, the location result may be included in a location notification message (for example, Nlmf_Location_Notify).

After S807, the GMLC can send location-related information to the AF through the following two implementation manners.

Implementation mode one:

S808: The GMLC may send a communication message (for example, Ngmlc_Location_EventNotify) to the NEF according to the positioning result and the set movement information.

Specifically, the GMLC can compare the position information in the positioning result with the set movement information, and send a communication message to the NEF when the position information deviates from the set movement information. The notification message may include notification information (also referred to as an event (Event)) for indicating that the location information deviates from the set movement information. When the position of the terminal device deviates from the set movement information, the event can be a position deviation event; when the movement speed of the terminal device deviates from the set movement information, the event can be a speed deviation event .

For specific content of S808, reference may be made to the description of S503, which will not be repeated here.

S809: The NEF sends the above notification information to the AF. In this way, after receiving the notification information, the AF can determine whether the UAV moves according to the set movement information, for example, whether to fly according to the set flight route.

In some possible implementation manners, the LMF may also send a communication message to the NEF according to the positioning result and the set movement information. At this time, in S803 and S804, the GMLC may send the setting movement information to the LMF through the AMF. After S806, after the LMF obtains the location information of the UAV, it can send a communication message to the NEF according to the positioning result and the set movement information. For details, please refer to S808.

In some other possible implementation manners, the NEF may also send a communication message to the AF according to the positioning result and the set movement information. At this time, in S802, the NEF may not send the setting movement information to the GMLC. After S806, after the LMF obtains the location information of the UAV, it may send the positioning results to the NEF through the AMF and the GMLC in sequence. Then, the NEF may send a communication message to the AF according to the positioning result and the set movement information. For details, please refer to S808.

In practical applications, the communication device that initiates the positioning request does not necessarily need to obtain the location information of the UAV all the time. As mentioned in Scenario 1 above, when the UAV is flying according to the predetermined flight path, the USS does not need to frequently acquire the UAV’s position configuration information. Through the first embodiment, when the position information of the UAV deviates from the set movement information, the control plane network element sends the notification information to the AF, so as to notify that the position information of the UAV deviates from the set movement information. In this way, the location information of the UAV does not need to be sent to the AF every time the location information of the UAV is acquired, thereby reducing signaling interaction.

Implementation mode two:

In S801 and S802, the GMLC may also receive information for notifying the first cycle. Wherein, for the specific content of the first period, reference may be made to step A1 in the method shown in FIG. 5 , which will not be repeated here.

S810: The GMLC sets a timer according to the first period, and the timing time of the timer is the first period.

Wherein, after the GMLC sends the notification message in S808 to the NEF, it can reset the timer to zero and restart the timer.

S811: When the time of the timer reaches the first period, the GMLC sends a notification message (for example, Ngmlc_Location_EventNotify) to the NEF.

Wherein, the notification message may include the latest positioning result (for example, including the latest location information of the UAV).

S812: The NEF sends the latest positioning result to the AF. In this way, the AF can determine whether the UAV is moving according to the set movement information, for example, whether it is flying according to the set flight path.

In some possible implementation manners, the LMF may also send the communication message according to the first period. At this time, in S803 and S804, the GMLC may send information for indicating the first period to the LMF through the AMF. After S806, the LMF may send a communication message to the NEF according to the first period.

In some other possible implementation manners, the NEF may also send the communication message to the AF according to the first period. At this time, in S802, the NEF may not send the information for indicating the first cycle to the GMLC. After S806, after the LMF obtains the location information of the UAV, it may send the positioning results to the NEF through the AMF and the GMLC in sequence. Then, the NEF may send a communication message to the AF according to the first period.

In the second embodiment, the control plane network element may send location information to the AF according to the first period. In this way, regardless of whether the UAV’s position information is offset relative to the set movement information, that is, even if the position information matches the set movement information, AF can also obtain the UAV’s position information, thereby preventing AF from being unable to obtain the UAV for a long time location information, so that AF can effectively manage the movement of UAV according to the location information.

Based on the same technical concept, the present application also provides a communication device, the structure of which is shown in FIG. 9 , including a communication unit 901 and a processing unit 902 . The communication device 900 can be applied to the NEF in the communication system shown in Figure 1, or to the LMF, GMLC or NEF in the communication system shown in Figure 2, and can realize the communication provided by the above embodiments and examples of this application method. The functions of each unit in the apparatus 900 are introduced below.

The communication unit 901 is configured to receive and send data.

When the communication device 900 is applied to LMF, GMLC or NEF, the communication unit 901 may be realized through a physical interface, a communication module, a communication interface, and an input/output interface. The communication device 900 can be connected with a network cable or cable through the communication unit, and then establish a physical connection with other devices.

In an implementation manner, the communication device 900 is applied to a control plane network element in the embodiment of the present application shown in FIG. 4 or FIG. 7 (eg, the control plane network element in FIG. 4 , or the LMF in FIG. 7 ). The specific functions of the processing unit 902 in this embodiment will be introduced below.

The processing unit 902 is configured to:

Acquiring location information of the terminal device; wherein the location information is used to indicate the location and/or movement of the terminal device moving speed; when the position information satisfies the first condition, send the first positioning cycle configuration information to the terminal device or the AN device connected to the terminal device through the communication unit 901; wherein, the first positioning The period configuration information is used to indicate the first positioning period corresponding to the first condition.

Optionally, the processing unit 902 is specifically configured to: receive first information from the first communication device through the communication unit 901; wherein the first information includes the first condition and the first positioning period corresponding relationship.

Optionally, the processing unit 902 is specifically configured to: when the location information satisfies a first condition, determine the first positioning cycle configuration information according to the first information and the location information.

Optionally, the processing unit 902 is specifically configured to: before acquiring the location information of the terminal device, send the second positioning period configuration information to the terminal device or the AN device connected to the terminal device through the communication unit 901 , the second positioning period configuration information is used to indicate the second positioning period.

Optionally, the processing unit 902 is specifically configured to: send information indicating the second positioning period and the location information to the second communication device through the communication unit 901 .

Optionally, the processing unit 902 is specifically configured to: use the communication unit 901 to receive information indicating the second positioning period from the first communication device.

Optionally, the first condition includes at least one of the following:

The location of the terminal device is within a first location range;

The location of the terminal device is outside the second location range;

The moving speed of the terminal device is within a first speed range;

The moving speed of the terminal device is outside the second speed range.

In one implementation manner, the communication device 900 is applied to the control plane network element in the embodiment of the present application shown in any one of FIG. 5 or FIG. 8 (for example, the control plane network element in FIG. 5 , the network element in FIG. GMLC). The specific functions of the processing unit 902 in this embodiment will be introduced below.

The processing unit 902 is configured to:

Obtain the set movement information of the terminal device; acquire the position information of the terminal device; wherein the position information is used to indicate the position and/or movement speed of the terminal device; according to the set movement information and the position Information, sending notification information to the second communication device through the communication unit 901; wherein the notification information is used to indicate that the location information is offset relative to the set movement information.

Optionally, the processing unit 902 is specifically configured to: when the offset between the position information and the set movement information is greater than or equal to a first threshold, communicate to the second through the communication unit 901 The device sends the notification information.

Optionally, the processing unit 902 is specifically configured to: acquire the first threshold before sending the notification information to the second communication device.

Optionally, the processing unit 902 is specifically configured to: receive the set movement information from the first communication device through the communication unit 901 .

Optionally, the set mobile information includes at least one of the following:

The set moving path of the terminal device;

The set position of the terminal device at at least one time point;

The set moving speed of the terminal device;

The set speed range of the terminal device.

Optionally, the processing unit 902 is specifically configured to: send a message to the second communication device through the communication unit 901 Send the location information of the terminal device.

Optionally, the processing unit 902 is specifically configured to: send a message to the The second communication device sends the location information of the terminal device.

Optionally, the processing unit 902 is specifically configured to: acquire information indicating a first cycle; send the location of the terminal device to the second communication device through the communication unit 901 according to the first cycle information.

In an implementation manner, the communication device 900 is applied to a control plane network element in the embodiment of the present application shown in FIG. 6 or the figure (for example, the control plane network element in FIG. 6 , or the GMLC in FIG. 8 ). The specific functions of the processing unit 902 in this embodiment will be introduced below.

The processing unit 902 is configured to:

Acquiring information for indicating the first period; according to the first period, sending the location information of the terminal device to the second communication device through the communication unit 901 . Wherein, the first period is greater than the positioning period of the terminal device.

The processing unit 902 is specifically configured to: obtain set movement information of the terminal device; obtain location information of the terminal device; wherein the location information is used to indicate the location and/or moving speed of the terminal device; according to The set movement information and the position information send notification information to the second communication device through the communication unit 901; wherein the notification information is used to indicate that the position information deviates from the set movement information. shift.

Optionally, the set mobile information includes at least one of the following:

The set moving path of the terminal device;

The set position of the terminal device at at least one time point;

The set moving speed of the terminal device;

The set speed range of the terminal device.

Optionally, the processing unit 902 is specifically configured to: send the location information of the terminal device to the second communication device through the communication unit 901 .

It should be noted that the division of modules in the above embodiments of the present application is schematic, and is only a logical function division. In actual implementation, there may be other division methods. In addition, each function in each embodiment of the present application Units can be integrated into one processing unit, or physically exist separately, or two or more units can be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.

If the integrated unit is realized in the form of a software function unit and sold or used as an independent product, it may to be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or part of the contribution to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other various media that can store program codes. .

Based on the same technical idea, this application also provides a communication device, which can be applied to the NEF in the communication system shown in Figure 1, or the LMF and GMLC in the communication system shown in Figure 2 Or the NEF can implement the communication methods provided in the above embodiments and examples of the present application, and has the functions of the communication device shown in FIG. 9 . Referring to FIG. 10 , the communication device 1000 includes: a communication module 1001 , a processor 1002 and a memory 1003 . Wherein, the communication module 1001, the processor 1002 and the memory 1003 are connected to each other.

Optionally, the communication module 1001 , the processor 1002 and the memory 1003 are connected to each other through a bus 1004 . The bus 1004 may be a peripheral component interconnect standard (peripheral component interconnect, PCI) bus or an extended industry standard architecture (extended industry standard architecture, EISA) bus or the like. The bus can be divided into address bus, data bus, control bus and so on. For ease of representation, only one thick line is used in FIG. 10 , but it does not mean that there is only one bus or one type of bus.

The communication module 1001 is used to receive and send data to realize communication interaction with other devices. For example, when the communication device 1000 is applied to LMF, GMLC or NEF, the communication module 1001 may be realized through a physical interface, a communication module, a communication interface, and an input/output interface.

In an implementation manner, the communication device 1000 is applied to a control plane network element in the embodiment of the present application shown in FIG. 4 or FIG. 7 (eg, the control plane network element in FIG. 4 , or the LMF in FIG. 7 ). The processor 1002 is specifically used for:

Obtaining the location information of the terminal device; wherein, the location information is used to indicate the location and/or moving speed of the terminal device; when the location information satisfies a first condition, send the terminal device a Or the AN device accessed by the terminal device sends first positioning cycle configuration information; wherein the first positioning cycle configuration information is used to indicate the first positioning cycle corresponding to the first condition.

In an implementation manner, the communication device 1000 is applied to a control plane network element in the embodiment of the present application shown in FIG. 5 or FIG. 8 (eg, the control plane network element in FIG. 5 , or the GMLC in FIG. 8 ). The processor 1002 is specifically used for:

Obtain the set movement information of the terminal device; acquire the position information of the terminal device; wherein the position information is used to indicate the position and/or movement speed of the terminal device; according to the set movement information and the position Information, sending notification information to the second communication device through the communication module 1001; wherein the notification information is used to indicate that the location information is offset relative to the set movement information.

In an implementation manner, the communication device 1000 is applied to a control plane network element in the embodiment of the present application shown in FIG. 6 or FIG. 8 (eg, the control plane network element in FIG. 6 , or the GMLC in FIG. 8 ). The processor 1002 is specifically used for:

Acquiring information for indicating the first period; sending the location information of the terminal device to the second communication device through the communication module 1001 according to the first period. Wherein, the first period is greater than the positioning period of the terminal device.

For the specific functions of the processor 1002, please refer to the descriptions in the above embodiments of the application and the communication methods provided in the examples, as well as the specific function description of the communication device 900 in the embodiment of the application shown in FIG. 9 , which will not be repeated here. repeat.

The memory 1003 is used to store program instructions and data. Specifically, the program instructions may include program codes including computer operation instructions. The memory 1003 may include a random access memory (random access memory, RAM), and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory. The processor 1002 executes the program instructions stored in the memory 1003, and uses the data stored in the memory 1003 to implement the above functions, thereby realizing the communication method provided by the above embodiments of the present application.

It can be understood that the memory 1003 in FIG. 10 of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electronically programmable Erase Programmable Read-Only Memory (Electrically EPROM, EEPROM) or Flash. The volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of illustration and not limitation, many forms of RAM are available, such as Static Random Access Memory (Static RAM, SRAM), Dynamic Random Access Memory (Dynamic RAM, DRAM), Synchronous Dynamic Random Access Memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (Synchlink DRAM, SLDRAM ) and Direct Memory Bus Random Access Memory (Direct Rambus RAM, DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but not be limited to, these and any other suitable types of memory.

Based on the above embodiments, an embodiment of the present application further provides a computer program that, when the computer program is run on a computer, causes the computer to execute the communication method provided by the above embodiments.

Based on the above embodiments, the embodiments of the present application also provide a computer-readable storage medium, in which a computer program is stored. When the computer program is executed by a computer, the computer executes the communication provided by the above embodiments. method.

Wherein, the storage medium may be any available medium that can be accessed by a computer. By way of example but not limitation: computer-readable media may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage media or other magnetic storage devices, or may be used to carry or store information in the form of instructions or data structures desired program code and any other medium that can be accessed by a computer.

Based on the above embodiments, the embodiments of the present application further provide a chip, the chip is configured to read a computer program stored in a memory, and implement the communication method provided by the above embodiments.

Based on the above embodiments, an embodiment of the present application provides a chip system, the chip system includes a processor, configured to support a computer device to implement the functions involved in the service device, forwarding device, or site device in the above embodiments. In a possible design, the chip system further includes a memory, and the memory is used to store necessary programs and data of the computer device. The system-on-a-chip may consist of chips, or may include chips and other discrete devices.

To sum up, the embodiments of the present application provide a communication method, device, and equipment. In this method, the control plane network element can obtain the location information of the terminal equipment, where the location information can be used to indicate the location and location of the terminal equipment. /or movement speed. When the location information satisfies the first condition, the control plane network element may send the first location cycle configuration information to the terminal device or the AN device accessed by the terminal device, where the first location cycle configuration information may be used to indicate the location corresponding to the first condition. The first positioning cycle. Through this solution, when the location information of the terminal device satisfies the first condition, the control plane network element can send information indicating the first positioning period corresponding to the first condition; The positioning cycle is updated by the location information of the new location information without re-initiating the positioning process, thereby reducing the interaction between the communication device that initiates the positioning request (for example, a terminal device or USS) and the network element of the control plane, and simplifying the positioning process.

In each embodiment of the present application, if there is no special explanation and logical conflict, the terms and/or descriptions between different embodiments are consistent and can be referred to each other, and the technical features in different embodiments are based on their inherent Logical relationships can be combined to form new embodiments.

Those skilled in the art should understand that the embodiments of the present application may be provided as methods, systems, or computer program products. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to the present application. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor, or processor of other programmable data processing equipment to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing equipment produce a An apparatus for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions The device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby The instructions provide steps for implementing the functions specified in the flow chart or blocks of the flowchart and/or the block or blocks of the block diagrams.

Apparently, those skilled in the art can make various changes and modifications to the present application without departing from the scope of the present application. In this way, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these modifications and variations.

Claims

A communication method applied to a control plane network element, characterized in that it includes:

Acquiring location information of the terminal device; wherein the location information is used to indicate the location and/or moving speed of the terminal device;

When the location information satisfies the first condition, send first positioning cycle configuration information to the terminal device or the access network AN device accessed by the terminal device; wherein the first positioning cycle configuration information is used to indicate The first positioning period corresponding to the first condition.
The method of claim 1, further comprising:

Receive first information from a first communication device; wherein, the first information includes a correspondence between the first condition and the first positioning cycle;

When the location information satisfies the first condition, determine the first positioning cycle configuration information according to the first information and the location information.
The method according to claim 1 or 2, wherein, before obtaining the location information of the terminal device, the method further comprises:

Sending second positioning cycle configuration information to the terminal device or the AN device accessed by the terminal device, where the second positioning cycle configuration information is used to indicate the second positioning cycle.
The method of claim 3, further comprising:

Sending the information for indicating the second positioning cycle and the location information to the second communication device.
The method according to claim 3 or 4, wherein the method further comprises:

Information indicating the second positioning period is received from the first communications device.
The method according to any one of claims 1 to 5, wherein the first condition includes at least one of the following:

The location of the terminal device is within a first location range;

The location of the terminal device is outside the second location range;

The moving speed of the terminal device is within a first speed range;

The moving speed of the terminal device is outside the second speed range.
A communication method applied to a control plane network element, characterized in that it includes:

Obtain the set mobile information of the terminal device;

Acquiring location information of the terminal device; wherein the location information is used to represent the location and/or moving speed of the terminal device;

Sending notification information to a second communication device according to the set movement information and the location information; wherein the notification information is used to indicate that the location information is offset relative to the set movement information.
The method according to claim 7, wherein, according to the set movement information and the location information, sending notification information to the second communication device includes:

When the offset between the location information and the set movement information is greater than or equal to a first threshold, the notification information is sent to the second communication device.
The method according to claim 8, wherein before sending the notification information to the second communication device, the method further comprises:

Acquire the first threshold.
The method according to any one of claims 7 to 9, wherein obtaining the set mobile information of the terminal device includes:

The set movement information is received from the first communication device.
The method according to any one of claims 7 to 10, wherein said setting mobile information includes at least one of the following:

The set moving path of the terminal device;

The set position of the terminal device at at least one time point;

The set moving speed of the terminal device;

The set speed range of the terminal device.
The method according to any one of claims 7 to 11, further comprising:

sending the location information of the terminal device to the second communication device.
The method according to claim 12, wherein sending the location information of the terminal device to the second communication device comprises:

When the deviation between the location information of the terminal device and the set movement information is greater than or equal to a first threshold, sending the location information of the terminal device to the second communication device.
The method according to claim 12, wherein sending the location information of the terminal device to the second communication device comprises:

acquiring information indicating the first cycle;

Send the location information of the terminal device to the second communication device according to the first period.
A communication device applied to a control plane network element, characterized in that it includes:

a communication unit for receiving and sending data;

A processing unit, configured to execute the method according to any one of claims 1-14 through the communication unit.
A computer-readable storage medium, characterized in that a computer program is stored in the computer-readable storage medium, and when the computer program is run on a computer, the computer is made to execute the computer program described in any one of claims 1-14. described method.
A chip, characterized in that the chip is coupled to a memory, and the chip reads a computer program stored in the memory to execute the method according to any one of claims 1-14.
A communication system, characterized in that it includes: a control plane network element and an access network device,

The control plane network element is configured to acquire location information of the terminal device; wherein the location information is used to indicate the location and/or moving speed of the terminal device; when the location information satisfies a first condition, send to the The access network device accessed by the terminal device sends first positioning cycle configuration information; wherein the first positioning cycle configuration information is used to indicate the first positioning cycle corresponding to the first condition;

The access network device is configured to receive the configuration information of the first positioning period.
The communication system according to claim 18, wherein,

The control plane network element is further configured to receive first information from a first communication device; wherein the first information includes a correspondence between the first condition and the first positioning period; when the location information When the first condition is met, the first positioning cycle configuration information is determined according to the first information and the location information.
A communication system, characterized in that it includes: a control plane network element and a second communication device,

The control plane network element is configured to obtain set movement information and location information of the terminal device; wherein the location information is used to indicate the location and/or movement speed of the terminal equipment; according to the set movement information and For the location information, sending notification information to the second communication device, where the notification information is used to indicate that the location information is offset relative to the set movement information;

The second communication device is configured to receive the notification message.
The communication system according to claim 20, wherein,

The control plane network element is configured to send notification information to the second communication device according to the set movement information and the position information, including: when the offset between the position information and the set movement information When greater than or equal to the first threshold, the notification information is sent to the second communication device.