Communication method and device

Abstract

The present application relates to the technical field of communications, and provides a communication method and device, for obtaining more information about a terminal user in an emergency status when a terminal initiates an emergency call and emergency sensing, thereby providing timelier and more effective services to terminal users. The method comprises: a terminal sends first information to an access and mobility management network element; in response to the first information, the access and mobility management network element triggers, upon triggering the establishment of a session for the terminal to execute an emergency call, the execution of emergency sensing related to the terminal. That is, when a terminal requests to execute emergency sensing and emergency call services, an access and mobility management network element may trigger the establishment of a session for the terminal to execute the emergency call, and trigger the execution of emergency sensing related to the terminal within a network in which the access and mobility management network element is located.

Description

Communication method and apparatus

[0001] The present application claims priority from the Chinese patent application No. 202410718248.5 filed on June 4, 2024, and entitled "A communication method and apparatus", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the field of communication, in particular to a communication method and apparatus. BACKGROUND

[0003] Wireless communication and wireless sensing are both based on electromagnetic wave theory. The electromagnetic wave signal is modulated at the sending end, so that the electromagnetic wave carries the source information, and the electromagnetic wave signal is affected by the wireless environment during propagation, that is, the electromagnetic wave signal is modulated by the environment and therefore also carries environmental information. The receiving end can not only obtain the carried source information, but also extract sensing information reflecting the characteristics of the propagation environment through analysis of the electromagnetic wave signal, which makes it possible to integrate communication and sensing.

[0004] At present, sensing can realize high-precision positioning, imaging and environment reconstruction, and sensing can be used as a basic feature of a communication system, which can observe and sample the physical world and the biological world, so as to open a "new channel" for the fusion of the physical world and the biological world with the digital world.

[0005] Then, how to cooperatively use communication and sensing to provide more timely and reliable services for users is a problem to be considered at present. SUMMARY

[0006] Embodiments of the present application provide a communication method and apparatus to provide timely and effective services for terminal users in emergency situations.

[0007] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0008] In a first aspect, a communication method is provided, applied to an access and mobility management network element, the method comprising: receiving, by the access and mobility management network element, first information from a terminal, the first information being used to request execution of a service of emergency sensing and emergency call; in response to the first information, triggering, by the access and mobility management network element, execution of emergency sensing related to the terminal in a case where establishment of a session for the terminal to execute the emergency call is triggered.

[0009] Therefore, the access and mobility management network element can trigger the terminal to initiate an emergency call and perform emergency awareness on the emergency call when the terminal requests to perform the emergency awareness and emergency call service, compared with the prior art of initiating an emergency call through an awareness result, the application triggers the terminal to initiate an emergency call and perform emergency awareness on the emergency call, which can obtain more information of terminal users in an emergency state, thereby providing more timely and effective services for terminal users.

[0010] It can be understood that the access and mobility management network element triggers the emergency awareness related to the terminal when triggering the establishment of a session for the terminal to perform an emergency call. Here, the action of performing the emergency awareness related to the terminal is not much different from the time interval of the action of establishing a session for performing an emergency call, and can be different by 1s, 1ms, or even a smaller time interval, or close to being identical, which is not limited here.

[0011] In a possible design scheme, the emergency awareness is a type of awareness with a higher priority than ordinary awareness. It can be understood that when both ordinary awareness and emergency awareness require resources for awareness, the demand for emergency awareness is prioritized.

[0012] Optionally, the access and mobility management network element receives the first information from the terminal, including: the access and mobility management network element receives a registration request message from the terminal, the registration request message being used for the terminal to request to register to a network where the access and mobility management network element is located, and the registration request message including the first information. It can be understood that when the terminal sends the registration request message, the terminal can be in an abnormal network connection state, such as not inserting a SIM card or the terminal user has a card but fails to authenticate, that is, the terminal user cannot successfully establish a connection through a correct identity verification process when attempting to connect to the network.

[0013] Optionally, the access and mobility management network element receives the first information from the terminal, including: in a case where the terminal has registered to a network where the access and mobility management network element is located, the access and mobility management network element receives a service request message from the terminal, and the service request message includes the first information. It can be understood that when the terminal sends the service request, the terminal can be in a state of having successfully connected to the network, in other words, the terminal has registered to the network where the access and mobility management network element is located.

[0014] Optionally, after the access and mobility management network element receives the first information from the terminal, the access and mobility management network element sends second information to the terminal, and the second information is used to indicate that the network where the access and mobility management network element is located provides an emergency awareness service. It can be understood that this step is an optional step, and the terminal can perform relevant operations according to the information subsequently without considering whether the information fed back by the access and mobility management network element is received.

[0015] Optionally, the access and mobility management network element triggers the emergency awareness related to the terminal to be performed in the case of triggering the establishment of a session for the terminal to perform an emergency call, comprising: the access and mobility management network element sending third information to the awareness service control network element, the third information being used to request the emergency awareness related to the terminal to be performed.

[0016] In a second aspect, a communication method is provided, applied to a terminal, the method comprising: the terminal sending a request message to a network, the request message comprising first information, the first information being used to request the service of emergency awareness and emergency call to be performed; and in the case of the network responding to the request message, the terminal establishing a session with the network for the terminal to perform an emergency call.

[0017] Therefore, the access and mobility management network element can trigger the terminal device to initiate an emergency call and then perform emergency awareness on it when the terminal requests the service of emergency awareness and emergency call to be performed, compared with the prior art of initiating an emergency call by means of awareness results, the application triggers the terminal device to initiate an emergency call and then perform emergency awareness on it, which can obtain more information of terminal users in an emergency state, thereby providing more timely and effective services for terminal users.

[0018] In a possible design, the emergency awareness is a type of awareness whose priority for performing awareness is higher than that of ordinary awareness. It can be understood that when both ordinary awareness and emergency awareness need resources for awareness, the demand of emergency awareness is guaranteed first.

[0019] Optionally, the request message is a registration request message, which is used for the terminal to request registration to the network; and the network responding to the request message comprises: the terminal receiving a registration acceptance returned by the network according to the registration request message, the registration acceptance being used to indicate that the terminal is successfully registered to the network. It can be understood that when the terminal sends the registration request message, the terminal can be in a state of not being normally connected to the network, such as not being inserted with a SIM card or the terminal user has a card but fails in authentication, that is, the terminal user cannot successfully establish a connection through a correct identity verification process when attempting to connect to the network.

[0020] Optionally, the request message is a service request message, and the network responding to the request message comprises: the terminal receiving a service acceptance returned by the network according to the service request message, the service acceptance being used to indicate that the network provides the service of emergency call and emergency awareness. It can be understood that when the terminal sends the service request, the terminal can be in a state of being successfully connected to the network, in other words, the terminal has been registered to the network where the access and mobility management network element is located.

[0021] Optionally, after the terminal sends the request message to the network, the terminal receives second information sent by the network, and the second information is used to indicate that the network provides a service of performing emergency awareness. It can be understood that this step is an optional step, and the terminal can perform relevant operations according to the information subsequently without considering whether the information fed back by the access and mobility management network element is received.

[0022] Optionally, in a case where the terminal establishes a session with the network for the terminal to perform an emergency call, the method further includes: the terminal performing emergency awareness.

[0023] In a third aspect, a communication method is provided, and the method is applied to a sensing service control network element, and the method includes the following steps.

[0024] The sensing service control network element receives third information, and the third information is used to request to perform emergency awareness related to a terminal.

[0025] In response to the third information, the sensing service control network element sends fourth information to a sensing data processing network element, and the fourth information is used to instruct the sensing data processing network element to perform emergency awareness related to the terminal.

[0026] Therefore, when the sensing service control network element receives the third information, the sensing service control network element can perform emergency awareness related to the terminal, including that the sensing service control network element sends the fourth information to the sensing data processing network element, so that the sensing service control network element processes received emergency awareness data to obtain an emergency awareness result. Based on this, more terminal user information in an emergency state can be obtained, and more timely and effective services can be provided for terminal users.

[0027] In a possible design scheme, the emergency awareness is a sensing type with a higher priority than a normal awareness for performing sensing. It can be understood that when both the normal awareness and the emergency awareness need resources for performing sensing, the demand of the emergency awareness is preferentially guaranteed.

[0028] Optionally, the third information is further used to instruct the sensing service control network element to send fifth information to the terminal, and the fifth information is used to instruct the terminal to perform emergency awareness. That is, according to the fifth information, the terminal performs an operation of sending a sensing signal and / or receiving a sensing signal, to obtain emergency awareness data related to the terminal.

[0029] Optionally, the third information is further used to instruct the sensing service control network element to send sixth information to an access network device, and the sixth information is used to instruct the access network device to perform emergency awareness related to the terminal. That is, according to the sixth information, the access network device performs an operation of sending a sensing signal and / or receiving a sensing signal, to obtain emergency awareness data related to the terminal.

[0030] Optionally, the fifth information and / or the sixth information are further used to indicate that the emergency awareness collected emergency awareness data is to be sent to the awareness data processing network element. Based on this, the awareness data processing network element fuses and analyzes the emergency awareness data uploaded by the terminal and the access network device to obtain emergency awareness results.

[0031] Optionally, the terminal performs emergency awareness, including at least one or more of the following: the terminal spontaneously and independently collects awareness signals to obtain emergency awareness data; the terminal sends awareness signals to the access network device; the terminal receives awareness signals sent by the access network device to obtain emergency awareness data.

[0032] Optionally, the access network device performs emergency awareness related to the terminal, including at least one or more of the following: the access network device spontaneously and independently collects awareness signals to obtain emergency awareness data; the access network device sends awareness signals to the terminal; the access network device receives awareness signals sent by the terminal to obtain emergency awareness data.

[0033] In a fourth aspect, a communication method is provided, applied to an access network device, and the method includes: the access network device receiving sixth information sent by an awareness service control network element, the sixth information being used to indicate that the access network device performs emergency awareness related to a terminal; and the access network device performing emergency awareness related to the terminal according to the sixth information.

[0034] Therefore, the access network device performs the operation of sending awareness signals and / or receiving awareness signals according to the sixth information, and obtains emergency awareness data related to the terminal.

[0035] In a possible design, the emergency awareness is a type of awareness whose priority for performing awareness is higher than that of ordinary awareness. It can be understood that when both ordinary awareness and emergency awareness need resources for awareness, the needs of emergency awareness are prioritized.

[0036] Optionally, when the access network device performs emergency awareness related to the terminal, the method further includes: the access network device allocating insufficient resources for performing emergency awareness, and the access network device performing emergency awareness using resources allocated for ordinary awareness. That is, when awareness resources are insufficient, performing emergency awareness is prioritized, so that terminal users in an emergency state can obtain services in a timely manner.

[0037] In a fifth aspect, a communication method is provided, applied to a terminal, and the method includes: the terminal requesting, in the case of interrupting network signals, a service of performing emergency awareness and emergency call; in response to the request for the service of performing emergency awareness and emergency call, the terminal collects emergency awareness data and processes the awareness data to obtain emergency awareness results, and then caches the emergency awareness results locally.

[0038] Therefore, in the case of network signal interruption, the terminal can also perform emergency perception, so as to upload the emergency perception result in time when the network is recovered, so that the terminal user can finally obtain effective rescue.

[0039] In a possible design, after the terminal caches the emergency perception result locally, when the terminal recovers the network signal, the terminal reports the emergency perception result to the emergency call server.

[0040] Optionally, when the terminal recovers the network signal, the terminal reports the emergency perception result to the emergency call server, including: when the network signal is a 3GPP network, the terminal sends the emergency perception result to an access and mobility management network element through non-access stratum signaling, the access and mobility management network element forwards the emergency perception result to the emergency call server or forwards the emergency perception result to a perception data processing network element, and the perception data processing network element forwards the emergency perception result to the emergency call server again; or, when the network signal is a non-3GPP network, the terminal directly sends the emergency perception result to the emergency call server.

[0041] Optionally, the resource used by the terminal to collect the perception data is a preconfigured resource of the terminal, and / or the terminal learns the available resource from broadcast information before the network signal is interrupted.

[0042] In a sixth aspect, a communication apparatus is provided, which includes modules for performing the method in any one of the first aspect to the fifth aspect.

[0043] In a possible design, the communication apparatus in the sixth aspect can further include a transceiver. The transceiver can be a transceiver circuit or an interface circuit. The transceiver can be used for the communication apparatus in the sixth aspect to communicate with other communication apparatuses.

[0044] In a possible design, the communication apparatus in the sixth aspect can further include a memory. The memory can be integrated with the processor, or can be separately arranged. The memory can be used to store instructions related to the manners in any one of the first aspect to the fifth aspect.

[0045] In the embodiments of the present application, the communication apparatus in the sixth aspect can be a network device, or a chip (system) or other components or assemblies arranged in the network device, or an apparatus containing the network device.

[0046] It can be understood that the technical effects of the apparatus in the sixth aspect can also be referred to the related descriptions of the method in any one of the first aspect to the fifth aspect, which will not be repeated here.

[0047] In a seventh aspect, a communication apparatus is provided. The communication apparatus includes a processor coupled with a memory, and the processor is configured to execute instructions stored in the memory to cause the communication apparatus to perform the method in any one of the first aspect to the fifth aspect.

[0048] In a possible design, the communication apparatus in the seventh aspect can further include a transceiver. The transceiver can be a transceiver circuit or an interface circuit. The transceiver can be configured to enable the communication apparatus to communicate with another communication apparatus.

[0049] In embodiments of the present application, the communication apparatus in the seventh aspect can be the network device in any one of the first aspect to the fifth aspect, or a chip (system) or other component or assembly that can be disposed in the network device, or an apparatus including the network device.

[0050] In addition, the technical effects of the communication apparatus in the seventh aspect can refer to the technical effects of the method in any one of the first aspect to the fifth aspect, which will not be repeated here.

[0051] In an eighth aspect, a communication apparatus is provided, including a processor and a memory, and the memory is configured to store instructions, when the processor executes the instructions, to cause the communication apparatus to perform the method in any one of the first aspect to the fifth aspect.

[0052] In a possible design, the communication apparatus in the eighth aspect can further include a transceiver. The transceiver can be a transceiver circuit or an interface circuit. The transceiver can be configured to enable the communication apparatus to communicate with another communication apparatus.

[0053] In embodiments of the present application, the communication apparatus in the eighth aspect can be the network device in any one of the first aspect to the fifth aspect, or a chip (system) or other component or assembly that can be disposed in the network device, or an apparatus including the network device.

[0054] In addition, the technical effects of the communication apparatus in the eighth aspect can refer to the technical effects of the method in any one of the first aspect to the fifth aspect, which will not be repeated here.

[0055] In a ninth aspect, a chip is provided, including a controller and an interface circuit, and the controller is configured to interact with another apparatus through the interface circuit to perform the method in any one of the first aspect to the fifth aspect.

[0056] In a tenth aspect, a communication system is provided. The communication system includes an access and mobility management network element configured to perform the method of the first aspect, a terminal configured to perform the method of the second aspect, a perception service control network element configured to perform the method of the third aspect. Alternatively, the communication system further includes an access network device configured to perform the method of the fourth aspect.

[0057] In an eleventh aspect, a computer-readable storage medium is provided. The computer-readable storage medium includes a computer program or instructions stored thereon, which, when executed by a processor, cause the method of any one of the first aspect to the fifth aspect to be performed.

[0058] In a twelfth aspect, a computer program product is provided. The computer program product includes a computer program or instructions stored thereon, which, when executed by a processor, cause the method of any one of the first aspect to the fifth aspect to be performed. BRIEF DESCRIPTION OF DRAWINGS

[0059] FIG. 1 is an example diagram of six perception scenarios;

[0060] FIG. 2 is an architecture diagram of a 5G system;

[0061] FIG. 3 is an architecture diagram of a communication system provided by an embodiment of the present application;

[0062] FIG. 4 is an example diagram of eight networking architectures in which an SSCF and an SDPF are introduced in a 5G system;

[0063] FIG. 5 is a flow diagram of a communication method provided by an embodiment of the present application;

[0064] FIG. 6 is a flow diagram of a communication method provided by an embodiment of the present application;

[0065] FIG. 7 is a flow diagram of a communication method provided by an embodiment of the present application;

[0066] FIG. 8 is a flow diagram of a communication method provided by an embodiment of the present application;

[0067] FIG. 9 is a flow diagram of a communication method provided by an embodiment of the present application;

[0068] FIG. 10 is a flow diagram of a communication method provided by an embodiment of the present application;

[0069] FIG. 11 is a structural diagram of a communication apparatus provided by an embodiment of the present application;

[0070] FIG. 12 is a structural diagram of a communication apparatus provided by an embodiment of the present application. DETAILED DESCRIPTION

[0071] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as a wireless network (Wi-Fi) system, a vehicle to everything (V2X) communication system, a device-to-device (D2D) communication system, a vehicle networking communication system, a 4th generation (4G) mobile communication system such as a long term evolution (LTE) system, a worldwide interoperability for microwave access (WiMAX) communication system, a 5th generation (5G) mobile communication system such as a new radio (NR) system, and a future communication network system.

[0072] For the convenience of understanding, the technical terms involved in the present application are introduced first as follows.

[0073] 1. Definition of sensing

[0074] Wireless sensing is to use wireless signals for sensing. Sensing is a process of collecting, processing, and generating sensing results from collected data, for example, judging the distance, shape, and type of surrounding obstacles through collected data, and for example, judging the breathing frequency and heartbeat of a monitored object through collected data. The collected data can be data collected by a sensor or data collected by a wireless signal.

[0075] Wireless sensing and wireless communication are both based on electromagnetic wave theory. At the sending end, the electromagnetic wave signal is modulated so that the electromagnetic wave signal carries source information. During the propagation process, the electromagnetic wave signal is affected by the wireless environment, that is, the electromagnetic wave signal is affected by the environment and therefore can also carry environmental information. The receiving end can not only obtain the carried source information, but also extract sensing information reflecting the characteristics of the propagation environment by analyzing the electromagnetic wave signal. That is, the electromagnetic wave signal has the dual ability of communication and sensing from birth, which makes it possible to integrate sensing and communication (ISAC). Communication and sensing integration (ISAC) can also be called joint communication and sensing (JCAS). Communication and sensing integration can also be referred to as integrated sensing and communication (ISAC). ISAC has a series of advantages compared with a system in which sensing and communication are separated, such as saving cost, reducing device size, reducing power consumption, improving frequency efficiency, reducing mutual interference between communication and sensing, and the like.

[0076] 2. Sensing scenarios

[0077] The perception scenarios can be divided into a network device-based perception scenario, a network device and terminal device-based perception scenario, and a terminal device-based perception scenario. For example, refer to the perception scenarios shown in (1) to (6) of FIG. 1.

[0078] The perception scenario shown in (1) of FIG. 1 is a network device-based perception scenario, in which the network device serves as a sending end and a receiving end of the perception signal. For example, the perception signal 1 sent by the network device reaches a target object (for example, a car), the perception signal 1 is reflected by the target object, and the network device can receive the perception signal 2, and then the network device can process the perception signal 2 to obtain a perception result.

[0079] The perception scenario shown in (2) of FIG. 1 is also a network device-based perception scenario, in which one network device serves as a sending end of the perception signal, and another network device serves as a receiving end of the perception signal. For example, the perception signal 1 sent by the network device A reaches a target object, the perception signal 1 is reflected by the target object, and the network device B can receive the perception signal 2, and then the network device B can process the perception signal 2 to obtain a perception result.

[0080] The perception scenario shown in (3) of FIG. 1 is a network device and terminal device-based perception scenario, in which the network device serves as a sending end of the perception signal, and the terminal device serves as a receiving end of the perception signal. For example, the perception signal 1 sent by the network device reaches a target object, the perception signal 1 is reflected by the target object, and the terminal device can receive the perception signal 2, and then the terminal device can process the perception signal 2 to obtain a perception result.

[0081] The perception scenario shown in (4) of FIG. 1 is also a network device and terminal device-based perception scenario, in which the terminal device serves as a sending end of the perception signal, and the network device serves as a receiving end of the perception signal. For example, the perception signal 1 sent by the terminal device reaches a target object, the perception signal 1 is reflected by the target object, and the network device can receive the perception signal 2, and then the network device can process the perception signal 2 to obtain a perception result.

[0082] The perception scenario shown in (5) of FIG. 1 is a terminal device-based perception scenario, in which the terminal device serves as a sending end and a receiving end of the perception signal. For example, the perception signal 1 sent by the terminal device reaches a target object, the perception signal 1 is reflected by the target object, and the terminal device can receive the perception signal 2, and then the terminal device can process the perception signal 2 to obtain a perception result.

[0083] The sensing scenario shown in (6) of FIG. 1 is also a terminal device-based sensing scenario, one terminal device as a sending end of a sensing signal, and another terminal device as a receiving end of the sensing signal. For example, terminal device a sends a sensing signal 1 to a target object, the sensing signal 1 is reflected by the target object, and terminal device b can receive a sensing signal 2, and then terminal device b can process the sensing signal 2 to obtain a sensing result.

[0084] The above-mentioned sensing signal 2 can be understood as a reflected signal of the above-mentioned sensing signal 1, and the sensing signal 2 carries more information than the sensing signal 1, for example, the sensing signal 2 can carry source information and environmental information.

[0085] 3, the fifth generation (5th generation, 5G) mobile communication system:

[0086] FIG. 2 is a schematic diagram of the architecture of the 5G system. As shown in FIG. 2, the 5G system includes an access network (AN) and a core network (CN), and can also include a terminal.

[0087] The terminal can be a terminal with transceiver function, or a chip or chip system that can be provided in the terminal. The terminal can also be referred to as user equipment (UE), access terminal, subscriber unit, user station, mobile station (MS), mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device. The terminal in the embodiments of the present application can be a mobile phone, a cellular phone, a smart phone, a Pad, a wireless data card, a personal digital assistant computer (PDA), a wireless modem, a handset, a laptop computer, a machine type communication (MTC) terminal, a computer with wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in self driving, a wireless terminal in remote medical treatment, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, a vehicle-mounted terminal, a road side unit (RSU) with terminal function, etc. The terminal in the present application can also be a vehicle-mounted module, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit built in a vehicle as one or more components or units.

[0088] The AN is used to implement access-related functions, can provide network access functions for authorized users, and can determine transmission links of different qualities to transmit user data according to the level of the user, the demand of the service, etc. The AN forwards control signals and user data between the terminal and the CN. The AN can include an access network device, which can also be referred to as a radio access network (RAN) device.

[0089] CN is mainly responsible for maintaining the subscription data of the mobile network, providing session management, mobility management, policy management, security authentication and other functions for the terminal. The CN mainly includes all or part of the following functions: user plane function (UPF), authentication server function (AUSF), access and mobility management function (AMF), session management function (SMF), network slice selection function (NSSF), network exposure function (NEF), network repository function (NRF), policy control function (PCF), unified data management (UDM), unified data repository (UDR), and application function (AF).

[0090] As shown in FIG. 2, the UE accesses the 5G network through the RAN device, the UE communicates with the AMF through the N1 interface (referred to as N1 for short); the RAN communicates with the AMF through the N2 interface (referred to as N2 for short); the RAN communicates with the UPF through the N3 interface (referred to as N3 for short); the SMF communicates with the UPF through the N4 interface (referred to as N4 for short); and the UPF accesses the data network (DN) through the N6 interface (referred to as N6 for short). In addition, the control plane functions such as AUSF, AMF, SMF, NSSF, NEF, NRF, PCF, UDM, UDR or AF shown in FIG. 2 interact through service interfaces. For example, the service interface provided by the AUSF to the outside is Nausf; the service interface provided by the AMF to the outside is Namf; the service interface provided by the SMF to the outside is Nsmf; the service interface provided by the NSSF to the outside is Nnssf; the service interface provided by the NEF to the outside is Nnef; the service interface provided by the NRF to the outside is Nnrf; the service interface provided by the PCF to the outside is Npcf; the service interface provided by the UDM to the outside is Nudm; the service interface provided by the UDR to the outside is Nudr; and the service interface provided by the AF to the outside is Naf.

[0091] The RAN device can be a device that provides access for a terminal. For example, the RAN device can include a future communication network system, or in the future communication network system, the network device can also have other naming ways, which are all covered within the protection scope of the embodiments of the present application, and the present application does not make any limitation on this. Alternatively, the RAN device can also include a gNB in a new radio (NR) system of 5G, or one or a group (including multiple antenna panels) of antenna panels of a base station in 5G, or a network node constituting a gNB, a transmission and reception point (TRP or transmission point, TP) or a transmission measurement function (TMF), such as a building base band unit (BBU), or a centralized unit (CU) or a distributed unit (DU), an RSU with base station function, or a wired access gateway, or a core network of 5G. Alternatively, the RAN device can also include an access point (AP) in a wireless fidelity (WiFi) system, a wireless relay node, a wireless backhaul node, various forms of macro base stations, micro base stations (also known as small stations), relay stations, access points, wearable devices, vehicle-mounted devices, and the like.

[0092] The UPF is mainly responsible for user data processing (forwarding, receiving, charging, etc.). For example, the UPF can receive user data from a data network (DN), and forward the user data to a terminal through an access network device. The UPF can also receive user data from the terminal through the access network device, and forward the user data to the DN. The DN refers to an operator network that provides data transmission services for users. For example, an internet protocol (IP) multi-media service (IMS), the Internet, etc. The DN can be an operator external network or an operator controlled network, which is used to provide service services to the terminal. In a protocol data unit (PDU) session, the UPF directly connected to the DN through N6 is also called a protocol data unit session anchor (PSA).

[0093] The AUSF is mainly used to perform security authentication of the terminal.

[0094] AMF is mainly used for mobility management in mobile networks. For example, user location update, user registration network, user handover, etc.

[0095] SMF is mainly used for session management in mobile networks. For example, session establishment, modification, release. Specific functions include, for example, allocating internet protocol (IP) addresses to users, selecting UPFs that provide packet forwarding functions, etc.

[0096] PCF mainly supports providing a unified policy framework to control network behavior, providing policy rules to control layer network functions, and is responsible for obtaining user subscription information related to policy decision. PCF can provide policies such as quality of service (QoS) policy, slice selection policy, etc. to AMF and SMF.

[0097] NSSF is mainly used for selecting network slices for terminals.

[0098] NEF is mainly used to support the opening of capabilities and events.

[0099] UDM is mainly used to store user data, such as subscription data, authentication / authorization data, etc.

[0100] UDR is mainly used to store structured data, including subscription data and policy data, externally exposed structured data, and application-related data.

[0101] AF mainly supports interaction with CN to provide services, such as affecting data routing decisions, policy control functions, or providing third-party services to the network side.

[0102] 4, emergency call

[0103] In a wireless communication system, the 3rd generation partnership project (3GPP) defines an emergency call (eCall). The eCall is used for calling in an emergency situation, and supports a cardless or limited user to dial. In a registration process, the core network issues an emergency call capability and an emergency call number to a terminal, and the terminal initiates an emergency call protocol data unit (PDU) session establishment request when dialing the number or a built-in emergency call number. The PDU session is the same as an IP multimedia subsystem (IMS) session, and a proxy call session control function (PCSCF) address is issued. The terminal initiates another session initiation protocol (SIP) registration to the IMS domain through a user plane connection established by the session, and a subsequent call process is similar to a normal voice call. Only the data stream and the special load use the emergency call PDU session instead of the normal IMS PDU session. A user can make an emergency call without subscribing to an access point name (APN) and a slice used for the emergency call.

[0104] Currently, a terminal device can be connected to a sensing device, and the sensing device monitors vital signs of a user, such as heart rate information, motion information, blood pressure information, pulse information, and respiration information. When the vital signs are lower than a specific threshold, an emergency call is initiated. However, this mode depends on the monitoring result, and the emergency call may waste valuable rescue time. Therefore, how to improve the timeliness of the emergency call is a problem to be solved.

[0105] To solve the above technical problems, the embodiments of the present application provide the following technical solutions.

[0106] The technical solutions in the present application will be described below with reference to the accompanying drawings.

[0107] In the embodiments of the present application, the indication can include direct indication and indirect indication, and can also include explicit indication and implicit indication. The information indicated by certain information is referred to as to-be-indicated information. In the implementation process, there are many ways to indicate the to-be-indicated information, for example, but not limited to, the to-be-indicated information can be directly indicated, such as the to-be-indicated information itself or an index of the to-be-indicated information. The to-be-indicated information can also be indirectly indicated by indicating other information, where the other information and the to-be-indicated information have an association relationship. The to-be-indicated information can also be indicated only by a part of the to-be-indicated information, and the other part of the to-be-indicated information is known or agreed in advance. For example, the indication of a specific information can also be achieved by means of the arrangement order of various information agreed in advance (for example, a protocol), thereby reducing the indication overhead to a certain extent. Meanwhile, a common part of various information can be identified and uniformly indicated, so as to reduce the indication overhead caused by separately indicating the same information.

[0108] In addition, the specific indication manner can also be various existing indication manners, for example, but not limited to, the above indication manners and various combinations thereof. The specific details of various indication manners can refer to the prior art, and will not be described herein. As known from the above, for example, when multiple information of the same type needs to be indicated, the indication manners of different information can be different. In the implementation process, the required indication manner can be selected according to the specific needs, and the selected indication manner is not limited in the embodiments of the present application. In this way, the indication manner involved in the embodiments of the present application should be understood as covering various methods that can enable the to-be-indicated party to know the to-be-indicated information.

[0109] It should be understood that the to-be-indicated information can be sent as a whole, or can be sent separately into multiple sub-information, and the sending period and / or sending occasion of the sub-information can be the same or different. The specific sending method is not limited in the embodiments of the present application. The sending period and / or sending occasion of the sub-information can be pre-defined, for example, pre-defined according to a protocol, or can be configured by the sending end device by sending configuration information to the receiving end device.

[0110] In the present application, the "sending information" can be understood as that a device sends information to another device, or can also be understood as that a logical module in a device sends information to another logical module. For example, "the network device sends information" can be understood as that the network device sends information to another device (such as a terminal or another network device), or can be understood as that a logical module 1 in the network device sends information to a logical module 2 in the network device.

[0111] In the present application, "receiving information" can be understood as a device receiving information from another device, or can also be understood as a logical module in a device receiving information from another logical module. For example, "a network device receiving information" can be understood as the network device receiving information from another device (such as a terminal or another network device), or can be understood as a logical module 1 in the network device receiving information from a logical module 2 in the network device.

[0112] In the present application, "sending information to (for example, a terminal)" or related illustrations in the drawings can be understood as that the destination of the information is the terminal. It can include directly or indirectly sending information to the terminal. "Receiving information from (for example, a terminal)" or "receiving information sent by (for example, a terminal)" or "receiving (for example, a terminal) sending information" or related illustrations in the drawings can be understood as that the source of the information is the terminal, and can include directly or indirectly receiving information from the terminal. The information can be processed as necessary between the source and the destination of the information sending, such as format change, etc., but the destination can understand the valid information from the source. Similar expressions in the present application can be similarly understood, and will not be repeated here.

[0113] "Predefined" or "preconfigured" can be realized by pre-storing corresponding codes, tables or other means that can be used to indicate related information in a device, and the embodiments of the present application do not limit the specific implementation manner. Wherein, "storing" can mean storing in one or more memories. The one or more memories can be separately arranged, or can be integrated in the encoder or decoder, processor, or communication device. The one or more memories can be part of the separately arranged, and part of the integrated in the decoder, processor, or communication device. The type of memory can be any form of storage medium, and the embodiments of the present application do not limit this.

[0114] The "protocol" involved in the embodiments of the present application can refer to a protocol family in the communication field, a standard protocol similar to the protocol family frame structure, or a related protocol applied to a future communication system, and the embodiments of the present application do not specifically limit this.

[0115] In the embodiments of the present application, "when", "in the case of", "if", and "if" and the like all refer to the device making corresponding processing under certain objective conditions, and are not limited by time, and do not require the device to have a judgment action when implemented, nor does it mean that there are other limitations.

[0116] In the description of the embodiments of the present application, unless otherwise specified, " / " represents that the objects before and after the " / " are in an "or" relationship, for example, A / B can represent A or B; "and / or" in the embodiments of the present application is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can represent: A exists alone, A and B exist together, and B exists alone, where A and B can be singular or plural. In addition, in the description of the embodiments of the present application, unless otherwise specified, "multiple" means two or more than two. "At least one of the following" or the like means any combination of the items, including any combination of single item or multiple items. For example, at least one of a, b or c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, and c can be single or multiple. In addition, in order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, "first", "second", and the like are used to distinguish the same items or similar items with basically the same function and role. Those skilled in the art can understand that "first", "second", and the like do not limit the quantity and execution order, and "first", "second", and the like do not necessarily mean different. At the same time, in the embodiments of the present application, "exemplary" or "for example" means to serve as an example, illustration or description. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. Rather, "exemplary" or "for example" is used to present the relevant concept in a specific manner, for understanding.

[0117] The network architecture and service scenarios described in the embodiments of the present application are used to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. Those skilled in the art can know that, with the evolution of network architecture and the appearance of new service scenarios, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

[0118] In order to facilitate understanding of the embodiments of the present application, first, a communication system suitable for the embodiments of the present application is described in detail.

[0119] FIG. 3 is a schematic diagram of the architecture of a communication system, which mainly includes: a terminal, an access network device, an access and mobility management network element, a perception service control network element.

[0120] In addition, the communication system in FIG. 3 can also include a perception data processing network element.

[0121] The access and mobility management network element can be specifically an AMF network element; the sensing service control network element can be specifically a sensing service control function (SSCF) network element, which is mainly used to implement the control plane function of the sensing service, such as receiving the capability registration of the sensing entity, and implementing the orchestration of the sensing service (including the selection of the sensing signal transmission / reception (Tx / Rx) entity); and the sensing data processing network element can be specifically a sensing data processing function (SDPF) network element, which is mainly used to implement the data plane function of the sensing service, such as processing the sensing data of the sensing service, including calculating the sensing measurement data from the sensing raw data, and calculating the sensing result from the sensing measurement data.

[0122] The specific architecture of the 5G system introducing the SSCF and the SDPF is shown in FIG. 4, and is specifically as follows:

[0123] The SSCF can be mounted to a service-based interface (SBI) bus to communicate with other core network function modules through the SBI; the SDPF can be mounted to the SBI bus to communicate with other core network function modules through the SBI, or can communicate through a separate interface, such as communicating with other SDPFs through a separate interface, or communicating with the SSCF through a separate interface.

[0124] The networking architecture after specifically including the SSCF and the SDPF can be seen from (1) to (8) shown in FIG. 4,

[0125] In the networking architecture shown in (1) of FIG. 4, the RAN connects the SSCF through an access and mobility management function (AMF), and connects the SDPF through a user plane function (UPF), the SDPF is mounted to an SBI bus through an SBI, and the SSCF is mounted to the SBI bus through the SBI. Then, the RAN can perform control plane communication with the SSCF through the AMF, and can perform data plane communication with the SDPF through the UPF.

[0126] In the networking architecture shown in (2) of FIG. 4, the RAN directly connects the SSCF, and connects the SDPF through the UPF, the SDPF is mounted to an SBI bus through an SBI interface, and the SSCF is not mounted to the SBI bus. Then, the RAN can directly perform control plane communication with the SSCF, and can perform data plane communication with the SDPF through the UPF.

[0127] In the networking architecture shown in (3) of FIG. 4, the RAN is connected with the SSCF through the AMF, the RAN is connected with the SDPF through the UPF, the SDPF is not mounted on the SBI bus, and the SSCF is mounted on the SBI bus through the SBI. Then, the RAN can perform control plane communication with the SSCF through the AMF, and the RAN can perform data plane communication with the SDPF through the UPF.

[0128] In the networking architecture shown in (4) of FIG. 4, the RAN is directly connected with the SSCF, the RAN is connected with the SDPF through the UPF, the SDPF is not mounted on the SBI bus, and the SSCF is not mounted on the SBI bus. Then, the RAN can directly perform control plane communication with the SSCF, and the RAN can perform data plane communication with the SDPF through the UPF.

[0129] In the networking architecture shown in (5) of FIG. 4, the RAN is connected with the SSCF through the AMF, the RAN is directly connected with the SDPF, the SDPF is mounted on the SBI bus through the SBI, and the SSCF is mounted on the SBI bus through the SBI. Then, the RAN can perform control plane communication with the SSCF through the AMF, and the RAN can directly perform data plane communication with the SDPF.

[0130] In the networking architecture shown in (6) of FIG. 4, the RAN is directly connected with the SSCF, the RAN is directly connected with the SDPF, the SDPF is mounted on the SBI bus through the SBI, and the SSCF is not mounted on the SBI bus. Then, the RAN can directly perform control plane communication with the SSCF, and the RAN can directly perform data plane communication with the SDPF.

[0131] In the networking architecture shown in (7) of FIG. 4, the RAN is connected with the SSCF through the AMF, the RAN is directly connected with the SDPF, the SDPF is not mounted on the SBI bus, and the SSCF is mounted on the SBI bus through the SBI. Then, the RAN can perform control plane communication with the SSCF through the AMF, and the RAN can directly perform data plane communication with the SDPF.

[0132] In the networking architecture shown in (8) of FIG. 4, the RAN is directly connected with the SSCF, the RAN is directly connected with the SDPF, the SDPF is not mounted on the SBI bus, and the SSCF is not mounted on the SBI bus. Then, the RAN can directly perform control plane communication with the SSCF, and the RAN can directly perform data plane communication with the SDPF.

[0133] As shown in FIG. 4, 1) the RAN can directly communicate with the SSCF in the control plane, or communicate with the SSCF in the control plane through the AMF; 2) the SDPF can be mounted on the SBI bus or not mounted on the SBI bus; 3) the RAN can directly communicate with the SDPF in the data plane, or communicate with the SDPF in the data plane through the UPF. The control plane communication refers to the transmission of control plane messages, such as the control message in the embodiments of the present application; the data plane communication refers to the transmission of sensing data and / or sensing results.

[0134] The dashed line between the SDPF and the network exposure function (NEF) in FIG. 4 indicates that the SDPF and the NEF can communicate or not communicate. For the SDPF not mounted on the SBI bus, the SDPF can communicate with the NEF through the dashed line. The arrow of the SDPF in FIG. 4 points to itself, indicating that the SDPFs can communicate with each other, such as the transmission of sensing data and / or sensing results.

[0135] The RAN in FIG. 4 can have sensing capability, at this time, the RAN can send sensing signals to target objects (such as the bicycle and the car in the figure), and perceive the original data through the sensing signals reflected by the target objects. The terminal in FIG. 4 can also have specific sensing capability, at this time, the terminal can send sensing signals to target objects (such as the bicycle and the car in the figure), and perceive the original data through the sensing signals reflected by the target objects.

[0136] It can be understood that the functions mentioned in the embodiments of the present application can also be expressed as function network elements or function entities, for example, the UPF can be expressed as a UPF network element, the AMF can be expressed as an AMF network element, the SMF can be expressed as an SMF network element, the PCF can be expressed as a PCF network element, and so on. By analogy, no limitation is made. In addition, the SSCF network element can also be referred to as a sensing service control network element, the SDPF network element can also be referred to as a sensing data processing network element, or any other possible naming, which is not limited in the embodiments of the present application.

[0137] The communication method and device of the embodiments of the present application will be further introduced below in combination with the drawings. It can be understood that the network device and the terminal are taken as an example to illustrate the execution subject of the interaction in the present application, but the present application does not limit the execution subject of the interaction. For example, the method executed by the network device in the present application can also be executed by a module (such as a chip, a chip system, or a processor) applied to the network device, and can also be implemented by a logic node, a logic module or software capable of realizing all or part of the function of the network device; the method executed by the terminal in the present application can also be executed by a module (such as a chip, a chip system, or a processor) applied to the terminal, and can also be implemented by a logic node, a logic module or software capable of realizing all or part of the function of the terminal.

[0138] The interaction process between the network elements / devices in the communication system will be described in detail below through method embodiments. The communication method provided by the embodiments of the present application can be applied to the above-mentioned communication system and applied to various scenarios mentioned in the above-mentioned communication system. The following will be described in detail.

[0139] FIG. 5 is a flowchart of a communication method provided by the embodiments of the present application. The communication method is applied to the above-mentioned communication system and mainly involves the interaction between the terminal and the access and mobility management network element.

[0140] As shown in FIG. 5, the flow of the communication method is as follows:

[0141] S501, the terminal sends a request message to the network, and correspondingly, the access and mobility management network element receives first information from the terminal.

[0142] The request message can be a registration request message or a service request message, that is, the first information is transmitted by multiplexing the existing message, or it can also be any other possible message, and the message type is not limited.

[0143] The request message can include the first information, and the first information can be used to request to perform the service of emergency awareness and emergency call.

[0144] The emergency awareness can be a newly defined awareness type, which can be an awareness type with a higher priority, for example, compared with the existing awareness, which is called ordinary awareness, the priority of the emergency awareness can be higher than that of the ordinary awareness, so in the case of simultaneous configuration, the emergency awareness needs to be executed preferentially. For example: the priority of the emergency awareness can be set to priority #0, and the priority of the ordinary awareness can be set to priority #1, priority #0 is greater than priority #1; or, the priority of the emergency awareness can be set to priority #1, and the priority of the ordinary awareness can be set to priority #0, priority #1 is greater than priority #0, or any other possible expression, such as: the emergency awareness can be the awareness type with the highest priority, which means that the priority of the emergency awareness is higher than that of the ordinary awareness, so that the emergency awareness can obtain the resources required by the emergency awareness more timely, and provide help to the user sending the emergency awareness in time. How the emergency awareness obtains the resources required by the emergency awareness more timely can be referred to the description below, which will not be described here.

[0145] The emergency sensing is generally a sensing service initiated by a user in an emergency situation, for sensing of the surrounding environment, sensing of the user's vital sign information (including heart rate information, motion information, blood pressure information, pulse information, and respiration information, etc.), sensing of the user's location information, etc. That is, the emergency sensing is to obtain the user's vital sign information, surrounding environment information, etc. through the emergency sensing when the user is in an emergency state, so that the actual information of the user sending the emergency sensing can be more accurately obtained.

[0146] The following describes how the first information indicates the above content, which can be a registration request message or a service request message.

[0147] Case 1: The terminal user can be in a state of not normally connecting to the network (for example, a SIM card is not inserted or the terminal user has a card but authentication fails, that is, when the terminal user attempts to connect to the network, the terminal user cannot successfully establish a connection through a correct identity verification process).

[0148] The terminal sends a registration request message to the access and mobility management network element, and the access and mobility management network element receives the registration request message from the terminal, which can include the first information at this time. That is, when the terminal cannot normally access the network and performs emergency registration to request temporary / emergency registration to the network where the access and mobility management network element is located, the information of the terminal requesting to perform emergency sensing and emergency call, that is, the first information, can be delivered to the network side by reusing this process.

[0149] Specifically, the first information can include the following content: the registration type in the registration request is the registration type of emergency call and emergency sensing. The registration type can be represented by a bit map, and different registration types can be a bit map. Each bit map is 3 bits, bit map #1 is 001 to represent initial registration, bit map #2 is 010 to represent mobile registration update, bit map #3 is 011 to represent emergency registration, and so on. Bit map #M in the first information represents emergency sensing and emergency call registration. Alternatively, the registration type can be represented by a string identifier, and different registration types are assigned a unique string identifier. For example, "initial registration" can be used to represent initial registration, "mobility registration updating" can be used to represent mobile registration update, and "emergency registration" can be used to represent emergency registration. Similarly, "emergency sensing call registration" can be used to represent emergency sensing and emergency call registration. Alternatively, it can also be any other possible form of expression, which is not limited.

[0150] Case 2: The end user can be in a state that has successfully connected to the network

[0151] Unlike case 1, the terminal in case 2 is normally registered to the network, such as the network where the access and mobility management network element serving the terminal is located. In the case that the user needs emergency sensing and emergency call services, the user can operate the terminal to initiate the services. In response to the user's operation, the terminal can send a service request message to the access and mobility management network element, and the access and mobility management network element receives the service request message from the terminal, wherein the service request message can include first information. That is, in the case that the terminal is normally registered to the network, the service flow for emergency sensing and emergency call services is defined to pass the information that the terminal requests to perform emergency sensing and emergency call, i.e. the first information, to the network side through the service flow.

[0152] The first information can include the following content: the service type in the service request is the service type of emergency call and emergency sensing. Among them, the service type can be represented by a bit map, and different service types can be a bit map, each bit map is 4 bits, bit map #1 is 0010, which represents mobile terminal service, bit map #2 is 0011, which represents emergency service, bit map #3 is 0101, which represents high priority access, and so on, and the first information represents emergency sensing and emergency call through bit map #N. Alternatively, the service type can be represented by a string identifier, and different service types are assigned a unique string identifier, for example, "mobile terminated services" can be used to represent mobile terminal service, "emergency services" can be used to represent emergency service, "high priority access" can be used to represent high priority access, and similarly, "emergency sensing and call" can be used to represent emergency sensing and emergency call. Alternatively, it can also be any other possible form of expression, which is not limited in particular.

[0153] In addition, the terminal identification parameter can be used to uniquely identify the terminal device. For example, the terminal identification parameter can include at least one of a subscription concealed identifier (SUCI), a subscriber permanent identifier (SUPI), a globally unique temporary identifier (GUTI), a permanent equipment identifier (PEI), an international mobile equipment identity (IMEI), an international mobile subscriber identity (IMSI), a temporary mobile subscriber identity (TMSI), or a radio network temporary identity (RNTI). The GUTI can be a 5G-GUTI, a 4G-GUTI, or a GUTI in another network standard, which is not limited in the embodiments of the present disclosure.

[0154] For example, in actual application, the terminal sends the first information to the network, which can be a "emergency awareness" switch added in the user interface of the terminal. When the "emergency awareness" switch is turned on, the user requests emergency awareness when making an emergency call. When the "emergency awareness" switch is turned off, the user does not request emergency awareness when making an emergency call. Alternatively, the terminal is set to request emergency awareness when making an emergency call in the future, and no additional "emergency awareness" switch is needed, or other possible forms, which are not described herein.

[0155] Optionally, after the network where the access and mobility management network element is located receives the request message, the access and mobility management network element sends the second information to the terminal. Correspondingly, the terminal receives the second information sent by the access and mobility management network element.

[0156] The second information can be used to indicate that the network where the access and mobility management network element is located can provide emergency-aware services. For example, the second information can carry 1-bit information, where "0" indicates that the network where the access and mobility management network element is located can provide emergency-aware services, and "1" indicates that the network where the access and mobility management network element is located cannot provide emergency-aware services. For another example, the second information can carry enumerated information, where different fill values respectively represent whether the network where the access and mobility management network element is located can provide emergency-aware services.

[0157] At this time, the request message in the corresponding step S501 can be a registration request message or a service request message, and how the second information indicates the above content is introduced.

[0158] Continuing the above case 1: the access and mobility management network element sends a registration acceptance message for responding to the above registration request message to the terminal, and the terminal receives the registration acceptance message from the access and mobility management network element, where the registration acceptance message can include the second information. That is, the network where the access and mobility management network element is located allows the terminal to register, and carries information about whether the network where the access and mobility management network element is located supports emergency-aware services in the registration acceptance message allowing the terminal to register.

[0159] Continuing the above case 2: the access and mobility management network element sends a service acceptance message for responding to the above service request message to the terminal, and the terminal receives the service acceptance message from the access and mobility management network element, where the service acceptance message can include the second information. That is, the network where the access and mobility management network element is located can provide services for the terminal, and carries information about whether the network where the access and mobility management network element is located supports emergency-aware services in the service acceptance message.

[0160] It can be understood that the above "the access and mobility management network element sends the second information to the terminal, and correspondingly, the terminal receives the second information sent by the access and mobility management network element" is an optional step, which can be because it is considered that after the terminal sends the first information to the access and mobility management network element, the terminal can also not consider whether to receive the information (such as the second information) fed back by the access and mobility management network element, and the access and mobility management network element triggers the subsequent step (executes emergency-aware related to the terminal and / or the terminal executes a session of an emergency call), and directly executes the subsequent step.

[0161] S502, in response to the first information, the access and mobility management network element triggers to perform the emergency awareness related to the terminal in the case of triggering to establish the session for the terminal to perform the emergency call. Correspondingly, in the case of the network responding to the request message, the terminal establishes the session for the terminal to perform the emergency call with the network where the access and mobility management network element is located, the access and mobility management network element performs the emergency awareness related to the terminal.

[0162] The specific implementation of the terminal and the access and mobility management network element establishing the session for the terminal to perform the emergency call can refer to the prior art, which will not be repeated here.

[0163] It can be understood that the access and mobility management network element triggers to perform the emergency awareness related to the terminal in the case of triggering to establish the session for the terminal to perform the emergency call. Here, the action of performing the emergency awareness related to the terminal and the action of establishing the session for performing the emergency call are not much different in time, and can be different by 1s, 1ms, or even smaller time interval, or tend to be equal, which is not limited here.

[0164] In one possible implementation, the access and mobility management network element performing the emergency awareness related to the terminal can include the access and mobility management network element sending third information to the awareness service control network element, and correspondingly, the awareness service control network element receiving the third information.

[0165] The third information can be used to request the awareness service control network element to perform the emergency awareness related to the terminal. That is, the awareness service control network element triggers to perform other emergency awareness related to the terminal (such as instructing other network elements to collect emergency awareness data, processing emergency awareness data, etc.) according to the third information.

[0166] In addition, the third information can also include a terminal identifier parameter for sending the emergency awareness and the emergency call. The meaning of the terminal identifier parameter is explained in the related explanation of step S501, which will not be repeated here.

[0167] The third information can also include cell information where the terminal is located. The cell information where the terminal is located can be information automatically obtained by the network when the terminal sends a registration request message or a service request message to the network where the access and mobility management network element is located, or the first information in the above step S501 can also include the cell information where the terminal is located, and the access and mobility management network element directly knows it according to the first information. Specifically, the cell information where the terminal is located can be obtained in any possible way, which is not limited here.

[0168] Optionally, in response to the third information, the awareness service control network element sends fourth information to the awareness data processing network element, and correspondingly, the awareness data processing network element receives the fourth information sent by the awareness service control network element.

[0169] The fourth information can be used to instruct the perception data processing network element to perform emergency perception (such as fusion analysis of emergency perception data) related to the terminal. That is, the perception data processing network element triggers the execution of emergency perception (such as fusion analysis of emergency perception data) related to the terminal according to the fourth information.

[0170] Optionally, in response to the third information, the perception service control network element sends fifth information to the terminal, and correspondingly, the terminal receives the fifth information sent by the perception service control network element.

[0171] The fifth information can be used to instruct the terminal to perform emergency perception. That is, the terminal performs the operation of sending and / or receiving a perception signal according to the fifth information, so as to obtain emergency perception data related to the terminal. For example, the terminal can be a sending end of the perception signal, and the terminal can also be a receiving end of the perception signal. The perception signal sent by the terminal reaches a target object, and the perception signal is reflected by the target object. The terminal can receive the perception signal, and then processes the perception signal to obtain the emergency perception data related to the terminal.

[0172] For another example, the terminal can be a sending end of the perception signal, and the access network device can be a receiving end of the perception signal. The perception signal sent by the terminal reaches a target object, and the perception signal is reflected by the target object. The access network device can receive the perception signal, and then processes the perception signal to obtain the emergency perception data related to the terminal.

[0173] For another example, the terminal can be a receiving end of the perception signal, and the access network device can be a sending end of the perception signal. The perception signal sent by the access network device reaches a target object, and the perception signal is reflected by the target object. The terminal can receive the perception signal, and then processes the perception signal to obtain the emergency perception data related to the terminal.

[0174] The emergency perception data can be information of a surrounding environment, user vital sign information (including heart rate information, motion information, blood pressure information, pulse information, and respiration information, etc.), user location information, and the like.

[0175] Optionally, in response to the third information, the perception service control network element sends sixth information to the access network device, and correspondingly, the access network device receives the sixth information sent by the perception service control network element.

[0176] The sixth information can be used to instruct the access network device to perform emergency perception related to the terminal. That is, the access network device performs the operation of sending and / or receiving a perception signal according to the sixth information, so as to obtain emergency perception data related to the terminal.

[0177] For example, the access network device can be a sending end of the sensing signal, and the access network device can be a receiving end of the sensing signal. The sensing signal sent by the access network device reaches the target object, and the sensing signal is reflected by the target object. The access network device can receive the sensing signal, and then the sensing signal can be processed to obtain the emergency sensing data related to the terminal.

[0178] For another example, the access network device can be a sending end of the sensing signal, and the terminal can be a receiving end of the sensing signal. The sensing signal sent by the access network device reaches the target object, and the sensing signal is reflected by the target object. The terminal can receive the sensing signal, and then the sensing signal can be processed to obtain the emergency sensing data related to the terminal.

[0179] For another example, the access network device can be a sending end of the sensing signal, and the terminal can be a receiving end of the sensing signal. The sensing signal sent by the access network device reaches the target object, and the sensing signal is reflected by the target object. The terminal can receive the sensing signal, and then the sensing signal can be processed to obtain the emergency sensing data related to the terminal.

[0180] For another example, the access network device can be a sending end of the sensing signal, and the terminal can be a receiving end of the sensing signal. The sensing signal sent by the access network device reaches the target object, and the sensing signal is reflected by the target object. The terminal can receive the sensing signal, and then the sensing signal can be processed to obtain the emergency sensing data related to the terminal.

[0181] In addition, the fifth information and / or the sixth information can also be used to instruct the terminal and / or the access network device to send the emergency sensing data collected by the emergency sensing to the sensing data processing network element, that is, the terminal triggers the terminal to send the emergency sensing data to the sensing data processing network element according to the fifth information, and / or the access network device triggers the access network device to send the emergency sensing data to the sensing data processing network element according to the sixth information.

[0182] Optionally, the terminal sends the emergency sensing data collected by the emergency sensing to the sensing data processing network element, and correspondingly, the sensing data processing network element receives the emergency sensing data collected by the emergency sensing sent by the terminal.

[0183] Optionally, the access network device sends the emergency sensing data collected by the emergency sensing to the sensing data processing network element, and correspondingly, the sensing data processing network element receives the emergency sensing data collected by the emergency sensing sent by the access network device.

[0184] Optionally, the sensing data processing network element performs fusion analysis and processing on the emergency sensing data uploaded by the terminal and the access network device to obtain the emergency sensing result.

[0185] The perception data processing network element fuses and analyzes the obtained emergency perception data, which can include at least one or more of the following steps: (a) preprocessing of the emergency perception data, (b) feature extraction of the emergency perception data, (c) feature fusion of the emergency perception data, etc. Through the above steps, the emergency perception data from multiple data sources can be fully utilized, and the reliability and robustness of the perception result can be improved.

[0186] Specifically, (a) preprocessing of the emergency perception data: preprocessing the data to clean, calibrate and standardize the data (such as converting analog or digital signals from different data sources into a unified digital representation), so as to be further processed and analyzed, which can also include removing noise, correcting sensor errors, time synchronizing the data, etc.; (b) feature extraction of the emergency perception data: extracting useful features from the preprocessed data to capture key information in the data; (c) feature fusion of the emergency perception data: fusing features from different data sources to comprehensively utilize information from multiple data sources. The fusion can be a simple weighted average or a more complex model such as Bayesian statistics, Kalman filtering method, Markov decision process, etc. For more detailed implementation of the perception data processing network element fusing and analyzing the obtained emergency perception data, reference can be made to the prior art, which will not be described here.

[0187] For example, the emergency perception data uploaded by the terminal is the heart rate information of the terminal user (such as rapid heart rate or specific heart rate information, heart rate of 80 times per second) and the breathing information (such as difficulty breathing or specific breathing rate information, frequency of 12 times per minute), and the emergency perception data uploaded by the access network device is the environmental information around the terminal user (such as the landmark building B of city A), through feature extraction of the above emergency perception data, the emergency perception result can be quickly obtained, i.e. the detailed location of the terminal user is the location of the landmark building B of city A, and the user's heart rate and breathing problems are serious, and subsequent timely and effective rescue can be performed on the user according to the information.

[0188] Optionally, the perception data processing network element reports the emergency perception result to the emergency call server.

[0189] The emergency call server can be a public safety answering point (PSAP) or other emergency call center (e.g., an eCall server). It should be noted that the emergency call server can be a function, entity, or network element of the core network or independent of the core network. The emergency call server can be owned or trusted by an operator, for example, the emergency call server can be a network element owned by the operator corresponding to the core network; for another example, the emergency call server can be a device provided by a third party (e.g., an institution other than the operator), which can be connected to and trusted by the core network.

[0190] The emergency call server can also be connected to the IMS. The IMS can transmit emergency call signaling and / or data between the UPF and the emergency call server; the emergency call server can process the emergency call at the application layer, including receiving emergency call information, determining a rescuer, and sending the emergency call information to the rescuer, which can include the user identifier and location information of the user initiating the emergency call, etc.

[0191] In addition, the first information to the sixth information can also include any other possible information, which is not limited. The naming of the first information to the sixth information is only an example, and any other possible naming can also be used, which is not limited.

[0192] Therefore, the access and mobility management network element can trigger the terminal device to initiate an emergency call and perform emergency awareness on it when the terminal requests to perform emergency awareness and emergency call services. Compared with the prior art of initiating an emergency call through awareness results, the application triggers the terminal device to initiate an emergency call and perform emergency awareness on it, which can obtain more information of terminal users in an emergency state, thereby providing more timely and effective services for terminal users.

[0193] In combination with the above embodiments, in a possible implementation, if there is normal awareness before step S501, the normal awareness specifically includes the following steps:

[0194] Step 1: The application function network element requests the awareness service control network element for normal awareness, such as target tracking in a certain area, location information of a certain terminal, etc.

[0195] Step 2: The awareness service control network element selects an access network device to initiate an awareness control message according to the prior art, wherein the awareness control information is used to instruct the access network device to allocate resources for normal awareness;

[0196] Step 3: The access network device allocates resources for normal awareness and performs the normal awareness.

[0197] Optionally, the access network device receives the sixth information sent by the perception service control network element, and when the access network device is to perform the emergency perception related to the terminal, the access network device can further include: the access network device further counts the resources currently available for emergency perception, and determines whether the resources currently available for emergency perception can meet the emergency perception.

[0198] Specifically, there are two cases. Case a: if the resources currently available for emergency perception are sufficient to meet the emergency perception, the emergency perception is continued according to the conventional process. Case b: if the resources currently available for emergency perception are insufficient to meet the emergency perception, the access network device interrupts / pauses the normal perception being performed by the terminal, and simultaneously sends information indicating that the normal perception has been interrupted / paused to the perception service control network element. Optionally, a cause value can be further attached, such as indicating that the reason for interrupting / pausing is that the emergency perception occupies the resources of the normal perception being performed.

[0199] The above describes in detail the overall process of the communication method provided by the embodiment of the application in the first scenario in combination with FIG. 5. The specific process of the communication method in the scenario is introduced below in combination with FIGS. 6-8.

[0200] FIG. 6 is a flowchart of a communication method provided by an embodiment of the application. The communication method is applicable to the communication system described above, and mainly involves the interaction among a UE (such as a terminal), a RAN device (such as an access network device), an AMF network element (such as an access and mobility management network element), and an SSCF network element (such as a perception service control network element).

[0201] Specifically, as shown in FIG. 6, the process of the communication method is as follows.

[0202] S601, the UE sends a registration request message to the AMF network element, and correspondingly, the AMF network element receives the registration request message from the UE, and the registration request message includes first information.

[0203] The first information is used to request the service of performing emergency perception and emergency call. For details, refer to the related description of S501 above, which will not be repeated.

[0204] S602, the AMF network element sends a registration acceptance message to the UE, and correspondingly, the UE receives the registration acceptance message sent by the AMF, and the registration acceptance message includes second information.

[0205] The second information is used to indicate that the network where the AMF network element is located can provide the service of emergency perception. For details, refer to the related description of S501 above, which will not be repeated.

[0206] It can be understood that the above S602 can be an optional step. For example, after the UE sends the first information to the AMF network element, the UE can also not consider whether to receive the information (such as the second information) fed back by the AMF network element; if the AMF network element triggers the subsequent step (executes the emergency awareness related to the UE and / or the UE executes the session of the emergency call), the subsequent step is directly executed.

[0207] S603, the AMF network element triggers to establish a session for the UE to execute the emergency call, and the AMF network element sends third information to the SSCF network element, and the SSCF network element receives the third information.

[0208] The third information can be used to request the SSCF network element to execute the emergency awareness related to the UE. For details, please refer to the related description of S502 above, which will not be repeated here.

[0209] The execution order between the subsequent steps S604-S606 is not limited, which can be executed simultaneously or in sequence, which is not limited here.

[0210] S604, the SSCF network element sends fourth information to the SDPF network element, and correspondingly, the SDPF network element receives the fourth information sent by the SSCF network element.

[0211] The fourth information can be used to instruct the SDPF network element to execute the emergency awareness related to the UE (such as fusion analysis of emergency awareness data). For details, please refer to the related description of S502 above, which will not be repeated here.

[0212] S605, the SSCF network element sends fifth information to the UE, and correspondingly, the UE receives the fifth information sent by the SSCF network element.

[0213] The fifth information can be used to instruct the UE to execute the emergency awareness. For details, please refer to the related description of S502 above, which will not be repeated here.

[0214] S606, the SSCF network element sends sixth information to the RAN device, and correspondingly, the RAN device receives the sixth information sent by the SSCF network element.

[0215] The sixth information can be used to instruct the RAN device to execute the emergency awareness related to the UE. For details, please refer to the related description of S502 above, which will not be repeated here.

[0216] Further, the fifth information and / or the sixth information in the steps S605 and S606 can be used to instruct the UE and / or the RAN device to send the emergency sensing data collected by performing the emergency sensing to the perception data processing network element, that is, the UE triggers to perform the subsequent step S607 according to the fifth information, and / or the RAN device triggers to perform the subsequent step S608 according to the sixth information. The execution sequence between the subsequent steps S607-S608 is not limited, which can be executed simultaneously or in sequence, and is not limited herein.

[0217] S607, the UE sends the emergency sensing data collected by performing the emergency sensing to the SDPF network element, and correspondingly, the SDPF network element receives the emergency sensing data collected by performing the emergency sensing sent by the UE.

[0218] S608, the RAN device sends the emergency sensing data collected by performing the emergency sensing to the SDPF network element, and correspondingly, the SDPF network element receives the emergency sensing data collected by performing the emergency sensing sent by the RAN device.

[0219] S609, the SDPF network element processes the received emergency sensing data to obtain an emergency sensing result. That is, the SDPF network element performs fusion analysis and processing on the emergency sensing data uploaded by the UE and the RAN device in the steps S607-S608 to obtain the emergency sensing result.

[0220] Here, how the fusion analysis is implemented can refer to the related description of S502, which will not be repeated.

[0221] S610, the SDPF network element reports the emergency sensing result to the emergency call server.

[0222] FIG. 7 is a flow diagram of a communication method provided by an embodiment of the application. The communication method is applicable to the above-mentioned communication system, and mainly involves the interaction between the UE (such as a terminal), the RAN device (such as an access network device), the AMF network element (such as an access and mobility management network element), and the SSCF network element (such as a perception service control network element).

[0223] Specifically, as shown in FIG. 7, the flow of the communication method is as follows:

[0224] S701, the UE sends a service request message to the AMF network element, and correspondingly, the AMF network element receives the service request message from the UE, and the service request message includes first information.

[0225] The first information is used to request the service of performing emergency sensing and emergency call, and specific details can refer to the related description of S501, which will not be repeated.

[0226] S702, the AMF network element sends a service acceptance message to the UE, and correspondingly, the UE receives the service acceptance message sent by the AMF, and the service acceptance message includes second information.

[0227] The second information is used to indicate that the network where the AMF network element is located can provide emergency awareness services. For details, refer to the related description of S501 above, which will not be repeated.

[0228] It can be understood that the above S602 can be an optional step. For example, after the UE sends the first information to the AMF network element, the UE can also not consider whether to receive the feedback information (such as the second information) of the AMF network element; if the AMF network element triggers the subsequent steps (executes the emergency awareness related to the UE and / or the UE executes the emergency call session), it directly executes the subsequent steps.

[0229] S703, the AMF network element triggers to establish a session for the UE to execute an emergency call, and the AMF network element sends third information to the SSCF network element, and the SSCF network element receives the third information.

[0230] The third information can be used to request the SSCF network element to execute the emergency awareness related to the UE. For details, refer to the related description of S502 above, which will not be repeated.

[0231] The execution order between the subsequent steps S704-S706 is not limited, which can be executed simultaneously or in sequence, which is not limited here.

[0232] S704, the SSCF network element sends fourth information to the SDPF network element, and correspondingly, the SDPF network element receives the fourth information sent by the SSCF network element.

[0233] The fourth information can be used to indicate that the SDPF network element executes the emergency awareness related to the UE (such as fusion analysis of emergency awareness data). For details, refer to the related description of S502 above, which will not be repeated.

[0234] S705, the SSCF network element sends fifth information to the UE, and correspondingly, the UE receives the fifth information sent by the SSCF network element.

[0235] The fifth information can be used to instruct the UE to execute the emergency awareness. For details, refer to the related description of S502 above, which will not be repeated.

[0236] S706, the SSCF network element sends sixth information to the RAN device, and correspondingly, the RAN device receives the sixth information sent by the SSCF network element.

[0237] The sixth information can be used to instruct the RAN device to execute the emergency awareness related to the UE. For details, refer to the related description of S502 above, which will not be repeated.

[0238] Further, the fifth information and / or the sixth information in the above steps S705 and S706 can be used to instruct the UE and / or the RAN device to send the collected emergency awareness data to the awareness data processing network element, that is, the UE triggers to perform the following step S707 according to the fifth information, and / or the RAN device triggers to perform the following step S708 according to the sixth information. The execution order between the following steps S707-S708 is not limited, which can be executed simultaneously or in sequence, and is not limited herein.

[0239] S707, the UE sends the collected emergency awareness data to the SDPF network element, and correspondingly, the SDPF network element receives the collected emergency awareness data sent by the UE.

[0240] S708, the RAN device sends the collected emergency awareness data to the SDPF network element, and correspondingly, the SDPF network element receives the collected emergency awareness data sent by the RAN device.

[0241] S709, the SDPF network element processes the received emergency awareness data to obtain an emergency awareness result. That is, the SDPF network element performs fusion analysis and processing on the emergency awareness data uploaded by the UE and the RAN device in steps S707-S708 to obtain an emergency awareness result.

[0242] Here, how to realize the fusion analysis can refer to the related description of S502, which will not be repeated.

[0243] S710, the SDPF network element reports the emergency awareness result to the emergency call server.

[0244] FIG. 8 is a flow diagram of a communication method provided by an embodiment of the application. The communication method is applicable to the above communication system, and mainly involves the interaction between the UE (such as a terminal), the RAN device (such as an access network device), the AMF network element (such as an access and mobility management network element), and the SSCF network element (such as an awareness service control network element).

[0245] Specifically, as shown in FIG. 8, the flow of the communication method is as follows:

[0246] S801, the UE sends a service / registration request message to the AMF network element, and correspondingly, the AMF network element receives the service / registration request message from the UE, and the service / registration request message includes first information.

[0247] The first information is used to request the service of performing emergency awareness and emergency call, and specific details can refer to the related description of S501, which will not be repeated.

[0248] S802, the AMF network element sends a service / registration acceptance message to the UE, and correspondingly, the UE receives the service / registration acceptance message sent by the AMF, and the service / registration acceptance message includes second information.

[0249] The second information is used to indicate that the network where the AMF network element is located can provide emergency awareness services. For details, refer to the related description of S501 above, which will not be repeated.

[0250] It can be understood that the above S802 can be an optional step. For example, after the UE sends the first information to the AMF network element, the UE can also not consider whether to receive the feedback information (such as the second information) of the AMF network element; if the AMF network element triggers the subsequent steps (executes emergency awareness related to the UE and / or the UE executes the session of the emergency call), it directly executes the subsequent steps.

[0251] S803, the AMF network element triggers to establish a session for the UE to execute an emergency call, and the AMF network element sends third information to the SSCF network element, and the SSCF network element receives the third information.

[0252] The third information can be used to request the SSCF network element to execute emergency awareness related to the UE. For details, refer to the related description of S502 above, which will not be repeated.

[0253] The execution order between the subsequent steps S804-S806 is not limited, which can be executed simultaneously or in sequence, which is not limited here.

[0254] S804, the SSCF network element sends fourth information to the SDPF network element, and correspondingly, the SDPF network element receives the fourth information sent by the SSCF network element.

[0255] The fourth information can be used to indicate that the SDPF network element executes emergency awareness related to the UE (such as fusion analysis of emergency awareness data). For details, refer to the related description of S502 above, which will not be repeated.

[0256] S805, the SSCF network element sends fifth information to the UE, and correspondingly, the UE receives the fifth information sent by the SSCF network element.

[0257] The fifth information can be used to instruct the UE to execute emergency awareness. For details, refer to the related description of S502 above, which will not be repeated.

[0258] S806, the SSCF network element sends sixth information to the RAN device, and correspondingly, the RAN device receives the sixth information sent by the SSCF network element.

[0259] The sixth information can be used to instruct the RAN device to execute emergency awareness related to the UE. For details, refer to the related description of S502 above, which will not be repeated.

[0260] In addition, the fifth information and / or the sixth information in the above steps S805 and S806 can be used to instruct the UE and / or the RAN device to perform emergency sensing and send the collected emergency sensing data to the sensing data processing network element, that is, the UE triggers to perform the subsequent step S809 according to the fifth information, and / or the RAN device triggers to perform the subsequent step S810 according to the sixth information. The execution order between the subsequent steps S809-S810 is not limited, which can be executed simultaneously or in sequence, and is not limited herein.

[0261] S807, the RAN device counts the resources available for emergency sensing, and if the current emergency sensing cannot be satisfied, the resources for ongoing normal sensing are preempted.

[0262] S808, the RAN device sends the behavior of preempting the resources for ongoing normal sensing, that is, the preemption reason, to the SSCF network element.

[0263] S809, the UE sends the collected emergency sensing data for emergency sensing to the SDPF network element, and correspondingly, the SDPF network element receives the collected emergency sensing data for emergency sensing sent by the UE.

[0264] S810, the RAN device sends the collected emergency sensing data for emergency sensing to the SDPF network element, and correspondingly, the SDPF network element receives the collected emergency sensing data for emergency sensing sent by the RAN device.

[0265] S811, the SDPF network element processes the received emergency sensing data to obtain an emergency sensing result. That is, the SDPF network element performs fusion analysis and processing on the emergency sensing data uploaded by the UE and the RAN device in steps S809-S810 to obtain an emergency sensing result.

[0266] Here, how the fusion analysis is implemented can refer to the related description of S502 above, which will not be repeated.

[0267] S812, the SDPF network element reports the emergency sensing result to the emergency call server.

[0268] FIG. 9 is a flowchart of a communication method provided by an embodiment of the application. The communication method is applicable to the above communication system, and mainly involves the interaction between a terminal and an access and mobility management network element.

[0269] As shown in FIG. 9, the flow of the communication method is as follows:

[0270] S901, the terminal sends a request message to the access and mobility management network element, and the request message includes first information.

[0271] The first information can be used to request execution of the emergency awareness and emergency call service. The specific information of the first information can refer to the related description in S501, which will not be repeated here.

[0272] However, unlike step S501, at present, due to the terminal being in the state of interrupting the network signal, the access and mobility management network element cannot receive the first information, so that the subsequent related steps of emergency awareness and emergency call are triggered.

[0273] S902, in response to the request for execution of the emergency awareness and emergency call service, the terminal collects emergency awareness data, processes the emergency awareness data to obtain emergency awareness results, and then caches the emergency awareness results locally.

[0274] The terminal can act as a sending end of the awareness signal, and at the same time, the terminal can act as a receiving end of the awareness signal. The awareness signal sent by the terminal reaches the target object, and the awareness signal is reflected by the target object. The terminal can receive the awareness signal, and then process the awareness signal to obtain the emergency awareness data related to the terminal.

[0275] Among them, the resource for the terminal to collect emergency awareness data can be a frequency resource pre-configured by the terminal, or a resource that the terminal can use for emergency awareness obtained from the broadcast information before the network signal is interrupted, or a frequency resource that can be used for awareness obtained through other possible ways, which will not be limited here.

[0276] In one possible implementation, the terminal restores the network signal, which is a 3GPP network, and then establishes a connection with the network where the access and mobility management network element is located.

[0277] Here, the specific implementation of the terminal and the access and mobility management network element establishing a connection with the network where the access and mobility management network element is located can refer to the prior art, which will not be repeated here.

[0278] Optionally, the terminal sends the emergency awareness results to the access and mobility management network element through non-access layer signaling, and the access and mobility management network element forwards the emergency awareness results to the emergency call server, or the access and mobility management network element forwards the emergency awareness results to the awareness data processing network element, and the awareness data processing network element forwards the emergency awareness results to the emergency call server.

[0279] If the access and mobility management network element meets one or more of the following requirements: the internet protocol address of the emergency call server has been pre-configured, the port number of the emergency call server has been pre-configured, etc., the access and mobility management network element forwards the emergency awareness result to the emergency call server after receiving the emergency awareness result. If the access and mobility management network element does not meet the above requirements, the received emergency awareness result needs to be forwarded to the awareness data processing network element, and the awareness data processing network element forwards the emergency awareness result to the emergency call server. Because the awareness data processing network element is usually configured with the internet protocol address and / or the port number of the emergency call server.

[0280] It should be noted that the access and mobility management network element herein is equivalent to a relay, which communicates with the terminal and the emergency call server and does not perform any processing and modification on the emergency awareness data. In addition, the awareness data processing network element herein is different from the awareness data processing in S502 described above, and the awareness data processing network element also does not perform any processing on the received emergency awareness result and is equivalent to a relay, which communicates with the emergency call server.

[0281] The emergency call server can refer to the related description in the above step S502, and details are not described herein.

[0282] In a possible implementation, the terminal restores the network signal, which is a non-3GPP network, and then establishes a connection with the network in which the access and mobility management network element is located.

[0283] Here, the specific implementation of the terminal establishing a connection with the network in which the access and mobility management network element is located can refer to the prior art, and details are not described herein.

[0284] It should be understood that the non-3GPP network includes a WLAN, a wired network, a Bluetooth network, a Zigbee network, a Z-Wave network, etc., which are not limited herein.

[0285] Optionally, the terminal directly sends the emergency awareness result to the emergency call server.

[0286] The terminal has pre-configured the internet protocol address of the emergency call server, so the terminal can directly communicate with the emergency call server and send the emergency awareness result to the emergency call server.

[0287] The emergency call server can refer to the related description in the above step S502, and details are not described herein.

[0288] The above describes the overall process of the communication method provided by the embodiment of the application in the second scenario in detail in combination with FIG. 9, and the specific process of the communication method in the scenario is introduced below in combination with FIG. 10.

[0289] FIG. 10 is a flowchart illustrating a sixth method of communication according to an embodiment of the present application. The method of communication is applicable to the communication system described above, and mainly involves the interaction between a UE (e.g., a terminal), a RAN device (e.g., an access network device), an AMF network element (e.g., an access and mobility management network element), and an SSCF network element (e.g., a perception service control network element).

[0290] Specifically, as shown in FIG. 10, the method of communication includes the following steps:

[0291] S1001: The UE sends a request message to the access and mobility management network element, and the request message includes first information.

[0292] The first information can be used to request the execution of emergency perception and emergency call services. The specific information of the first information can be referred to the related description in S501, and will not be repeated here.

[0293] However, unlike step S501, the access and mobility management network element cannot receive the first information at present because the UE is in a state of interrupting network signals, so that the subsequent steps related to emergency perception and emergency call cannot be triggered.

[0294] S1002: The UE collects emergency perception data, processes the emergency perception data to obtain emergency perception results, and then caches the emergency perception results locally.

[0295] S1003a: The UE restores the network signal, which is a 3GPP network, and then establishes a connection with the network in which the access and mobility management network element is located.

[0296] Here, the specific implementation of establishing a connection between the UE and the network in which the access and mobility management network element is located can be referred to the prior art, and will not be repeated here.

[0297] S1004a: The UE sends the emergency perception results to the access and mobility management network element through non-access stratum signaling, and the access and mobility management network element forwards the emergency perception results to an emergency call server or forwards the emergency perception results to a perception data processing network element, which then forwards the emergency perception results to the emergency call server.

[0298] In addition, S1003a and S1004a described above can be replaced by S1003b and S1004b, which will be described below.

[0299] S1003b: The UE restores the network signal, which is a non-3GPP network, and then establishes a connection with the network in which the access and mobility management network element is located.

[0300] Here, the specific implementation of the connection established by the UE and the network where the access and mobility management network element is located can refer to the prior art, which is not described here. It should be understood that the non-3GPP network includes WLAN, wired, Bluetooth, Zigbee network, Z-Wave network, etc., which is not limited here.

[0301] S1004b: The UE directly sends the emergency awareness result to the emergency call server.

[0302] The emergency call server can refer to the related description in step S502 described above, which will not be repeated here.

[0303] The communication method provided by the embodiments of the present application is described in detail above in combination with FIGS. 6-8 and 10. The communication device for executing the communication method provided by the embodiments of the present application is described in detail below in combination with FIGS. 11-12.

[0304] FIG. 11 is a structural schematic diagram of a communication device provided by an embodiment of the present application. As shown in FIG. 11, the communication device 1100 includes a transceiver module 1101 and a processing module 1102. For the convenience of description, FIG. 11 only shows the main components of the communication device.

[0305] The transceiver module 1101 is configured to perform the transceiving function of the above-mentioned communication method, and the processing module 1102 is configured to perform other functions of the above-mentioned communication method except the transceiving function.

[0306] Optionally, the transceiver module 1101 can include a sending module (not shown in FIG. 11) and a receiving module (not shown in FIG. 11). The sending module is configured to implement the sending function of the communication device 1100, and the receiving module is configured to implement the receiving function of the communication device 1100.

[0307] Optionally, the communication device 1100 can further include a storage module (not shown in FIG. 11), which stores a program or instructions. When the processing module 1102 executes the program or instructions, the communication device 1100 can execute the functions of any of the execution subjects shown in FIGS. 5-10 in the above-mentioned method.

[0308] It can be understood that the communication device 1100 can be a terminal or a network device, or a chip (system) or other components or assemblies that can be arranged in the terminal or the network device, or a device containing the terminal or the network device, which is not limited in the present application.

[0309] In addition, the technical effects of the communication device 1100 can refer to the technical effects of the method shown in FIGS. 5-10, which will not be repeated here.

[0310] The components of the communication device 1200 will be described in detail below in combination with FIG. 12.

[0311] The processor 1201 is a control center of the communication device 1200, which can be one processor or collectively refer to multiple processing elements. For example, the processor 1201 is one or more central processing units (CPUs), application specific integrated circuits (ASICs), or one or more integrated circuits configured to perform the functions of the embodiments of the present application, such as one or more digital signal processors (DSPs), or one or more field programmable gate arrays (FPGAs).

[0312] Optionally, the processor 1201 can perform various functions of the communication device 1200 by running or executing software programs stored in the memory 1202 and calling data stored in the memory 1202, such as performing the communication method in the embodiments of the present application.

[0313] In a specific implementation, as an embodiment, the processor 1201 can include one or more CPUs, such as CPU0 and CPU1 shown in FIG. 12.

[0314] In a specific implementation, as an embodiment, the communication device 1200 can also include multiple processors, such as the processor 1201 and the processor 1204 shown in FIG. 12. Each of the processors can be a single-CPU or a multi-CPU. The processor here can refer to one or more devices, circuits, and / or processing cores for processing data (such as computer program instructions).

[0315] The memory 1202 is configured to store software programs for implementing the solutions of the present application, and the processor 1201 is configured to control the execution. The specific implementation can refer to the above method embodiments, and will not be repeated here.

[0316] Optionally, the memory 1202 can be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM), or other type of dynamic storage device that can store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disk storage, a magnetic disk storage or other magnetic storage devices, or any other medium capable of storing desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to this. The memory 1202 can be integrated with the processor 1201 or exist independently and be coupled to the processor 1201 through the interface circuit (not shown in FIG. 12) of the communication apparatus 1200, and the embodiments of the present application are not limited in this regard.

[0317] The transceiver 1203 is configured to communicate with other communication apparatuses. For example, the communication apparatus 1200 is a terminal, and the transceiver 1203 can be configured to communicate with a network device or another terminal. For another example, the communication apparatus 1200 is a network device, and the transceiver 1203 can be configured to communicate with a terminal or another network device.

[0318] Optionally, the transceiver 1203 can include a receiver and a transmitter (not shown in FIG. 12). The receiver is configured to implement the receiving function, and the transmitter is configured to implement the transmitting function.

[0319] Optionally, the transceiver 1203 can be integrated with the processor 1201 or exist independently and be coupled to the processor 1201 through the interface circuit (not shown in FIG. 12) of the communication apparatus 1200, and the embodiments of the present application are not limited in this regard.

[0320] It can be understood that the structure of the communication apparatus 1200 shown in FIG. 12 does not constitute a limitation on the communication apparatus, and an actual communication apparatus can include more or fewer components than those shown, or combine certain components, or have different arrangement of components.

[0321] In addition, the technical effects of the communication apparatus 1200 can refer to the technical effects of the methods described in the above method embodiments, which will not be described here.

[0322] It should be appreciated that a processor in the embodiments of the present application can be a central processing unit (CPU), and can also be other general-purpose processors, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, etc. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor.

[0323] It should also be understood that the memory in the embodiments of the present application can be a volatile memory or a nonvolatile memory, or can include both volatile and nonvolatile memory. Among them, the nonvolatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically EPROM (EEPROM) or a flash memory. The volatile memory can be a random access memory (RAM) used as an external cache. By way of example, but not limitation, many forms of random access memory (RAM) are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchlink DRAM (SLDRAM) and direct rambus RAM (DR RAM).

[0324] The above-described embodiments can be implemented in part or in whole through software, hardware (e.g., circuitry), firmware, or any combination thereof. When implemented in software, the above-described embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When loaded and executed by a computer, the computer instructions or computer programs can produce the processes or functions described above in accordance with the embodiments of the present application. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable apparatus. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, such as from a website site, a computer, a server, or a data center to another website site, a computer, a server, or a data center through a wired (e.g., infrared, wireless, microwave, etc.) manner. The computer-readable storage medium can be any available medium or a collection of medium accessible by a computer or a data storage device such as a server, a data center, etc. containing one or more available medium. The available medium can be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a DVD), or a semiconductor medium. The semiconductor medium can be a solid-state disk.

[0325] It should be understood that the term "and / or" in this document is merely used to describe an associated relationship between associated objects, and can represent three relationships, for example, A and / or B can represent three cases of A alone, A and B together, and B alone, where A and B can be singular or plural. In addition, the character " / " in this document generally represents an "or" relationship between the front and rear associated objects, but can also represent an "and / or" relationship. The specific meaning can be understood according to the context before and after.

[0326] In this application, "at least one" means one or more, and "multiple" means two or more. "At least one of the following" or similar expressions means any combination of the items, including any combination of single or multiple items. For example, at least one of a, b, or c can represent a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, and c can be single or multiple.

[0327] It should be understood that in various embodiments of the present application, the size of the sequence number of the above-described processes does not mean the order of execution, and the execution order of the processes should be determined according to their functions and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0328] Those skilled in the art can clearly understand that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be realized by electronic hardware or a combination of computer software and electronic hardware. Whether the functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0329] Those skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working processes of the above-described system, device and unit can refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

[0330] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented in other ways. For example, the above-described device embodiments are merely schematic, for example, the division of the units is only a logical function division, and actual implementation can have another division manner, for example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0331] The units described as separate components can or can not be physically separated, and the components shown as units can or can not be physical units, that is, they can be located in one place, or can be distributed on multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.

[0332] In addition, each functional unit in each embodiment of the present application can be integrated into a processing unit, or each unit can exist physically independently, or two or more units can be integrated into one unit.

[0333] If the functions are implemented in the form of software function units and sold or used as independent products, they can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application essentially or the parts that contribute to the prior art or parts of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0334] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A communication method characterized by comprising: The method applied to an access and mobility management network element comprises: The access and mobility management network element receives first information from a terminal, the first information being used for requesting to perform emergency awareness and emergency call service; In response to the first information, the access and mobility management network element triggers to perform emergency awareness related to the terminal in a case of triggering to establish a session for the terminal to perform emergency call.

2. The method of claim 1, wherein, The emergency awareness is a type of awareness with a higher priority than normal awareness.

3. The method of claim 2, wherein, The access and mobility management network element receives first information from a terminal, comprising: The access and mobility management network element receives a registration request message from the terminal, the registration request message being used for the terminal to request to register to a network where the access and mobility management network element is located, and the registration request message comprising the first information.

4. The method of claim 2, wherein, The access and mobility management network element receives first information from a terminal, comprising: In a case that the terminal has registered to a network where the access and mobility management network element is located, the access and mobility management network element receives a service request message from the terminal, the service request message containing the first information.

5. The method according to any one of claims 1-4, characterized in that, The method further comprises: After the access and mobility management network element receives the first information from the terminal, the access and mobility management network element sends second information to the terminal, the second information being used for indicating that the network where the access and mobility management network element is located provides emergency awareness service.

6. The method according to any one of claims 1-5, characterized in that, The access and mobility management network element triggers to perform emergency awareness related to the terminal in a case of triggering to establish a session for the terminal to perform emergency call, comprising: The access and mobility management network element sends third information to an awareness service control network element, the third information being used for requesting to perform emergency awareness related to the terminal.

7. A communication method characterized by comprising: The method applied to a terminal comprises: The terminal sends a request message to a network, the request message comprising first information, the first information being used for requesting to perform emergency awareness and emergency call service; In a case that the network responds to the request message, the terminal establishes a session with the network for the terminal to perform emergency call.

8. The method of claim 7, wherein, The emergency awareness is a type of awareness with a higher priority than normal awareness.

9. The method of claim 8, wherein, The request message is a registration request message, and the terminal requests to register to the network; The network responding to the request message comprises that the terminal receives a registration acceptance returned by the network according to the registration request message, the registration acceptance being used for indicating that the terminal is successfully registered to the network.

10. The method of claim 8, wherein, The request message is a service request message, and the network responding to the request message comprises that the terminal receives a service acceptance returned by the network according to the service request message, the service acceptance being used for indicating that the network provides emergency call and emergency awareness service.

11. The method according to any one of claims 7-10, characterized in that, The method further comprises that after the terminal sends the request message to the network, the terminal receives second information sent by the network, the second information being used for indicating that the network provides emergency awareness service.

12. The method according to any one of claims 7-11, characterized in that, In a case that the terminal establishes a session with the network for the terminal to perform an emergency call, the method further comprises: the terminal performing an emergency awareness.

13. A communication method, comprising: The method applied to a sensing service control network element, the method comprises: The sensing service control network element receives third information, the third information is used for requesting to perform an emergency awareness related to a terminal; In response to the third information, the sensing service control network element sends fourth information to a sensing data processing network element, the fourth information is used for instructing the sensing data processing network element to perform an emergency awareness related to the terminal.

14. The method of claim 13, wherein, The emergency awareness is a sensing type with a higher priority than a normal sensing in performing sensing.

15. The method of claim 14, wherein, The third information is further used for instructing the sensing service control network element to send fifth information to the terminal, the fifth information is used for instructing the terminal to perform an emergency awareness.

16. The method of claim 14, wherein, The third information is further used for instructing the sensing service control network element to send sixth information to the access network device, the sixth information is used for instructing the access network device to perform an emergency awareness related to the terminal.

17. The method according to claim 15 or 16, characterized in that, The fifth information and / or the sixth information is further used for instructing to send the emergency awareness data collected in performing the emergency awareness to the sensing data processing network element.

18. The method of claim 15, wherein, The terminal performing an emergency awareness comprises at least one or more of the following: The terminal spontaneously collects sensing signals to obtain emergency awareness data; The terminal sends sensing signals to the access network device; The terminal receives sensing signals sent by the access network device to obtain emergency awareness data.

19. The method of claim 16, wherein, The access network device performing an emergency awareness related to the terminal comprises at least one or more of the following: The access network device spontaneously collects sensing signals to obtain emergency awareness data; The access network device sends sensing signals to the terminal; The access network device receives sensing signals sent by the terminal to obtain emergency awareness data.

20. A method of communication, comprising: The method applied to an access network device, the method comprises: The access network device receives sixth information sent by a sensing service control network element, the sixth information is used for instructing the access network device to perform an emergency awareness related to a terminal; According to the sixth information, the access network device performs an emergency awareness related to a terminal.

21. The method of claim 20, wherein, The emergency awareness is a sensing type with a higher priority than a normal sensing in performing sensing.

22. The method of claim 21, wherein, In a case that the access network device performs an emergency awareness related to a terminal, the method further comprises: the access network device allocating insufficient resources to perform the emergency awareness, and the access network device performing the emergency awareness using resources allocated to the normal sensing.

23. A method of communication, comprising: The method applied to a terminal, the method comprises: In a case that the terminal interrupts a network signal, the terminal requests to perform an emergency awareness and an emergency call service; In response to the request to perform an emergency awareness and an emergency call service, the terminal collects emergency awareness data, processes the awareness data to obtain an emergency awareness result, and then caches the emergency awareness result locally.

24. The method of claim 23, wherein, The method further comprises: when the terminal restores a network signal after caching the emergency awareness result locally, the terminal reports the emergency awareness result to an emergency call server.

25. The method of claim 24, wherein, When the terminal recovers the network signal, the terminal reports the emergency awareness result to an emergency call server, including: When the network signal is a 3GPP network, the terminal sends the emergency awareness result to the access and mobility management network element through non-access layer signaling, the access and mobility management network element forwards to an emergency call server or the access and mobility management network element forwards to an awareness data processing network element, and the awareness data processing network element forwards to the emergency call server again; Or, when the network signal is a non-3GPP network, the terminal directly sends the emergency awareness result to the emergency call server.

26. The method of any one of claims 23-25, wherein, The method further includes, The resource used by the terminal to collect the awareness data is a pre-configured resource of the terminal, and / or the terminal learns available resources from broadcast information before the network signal is interrupted.

27. A communications device, characterized by The apparatus includes modules for performing the method of any of claims 1-26.

28. A communications device, characterized by The communication apparatus includes a processor and a memory, the memory is used to store computer instructions, when the processor executes the instructions, to make the communication apparatus perform the method of any of claims 1-26.

29. A computer-readable storage medium, characterized in that, The computer readable storage medium includes storing computer programs or instructions, when the computer programs or instructions are executed, to make the method of any of claims 1-26 be executed.

30. A computer program product, characterised in that, Including computer programs or instructions, when the computer programs or instructions are executed, to make the method of any of claims 1-26 be executed.

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