WO2024016166A1

WO2024016166A1 - Wireless communication methods and communication devices

Info

Publication number: WO2024016166A1
Application number: PCT/CN2022/106518
Authority: WO
Inventors: 卢飞
Original assignee: Oppo广东移动通信有限公司
Priority date: 2022-07-19
Filing date: 2022-07-19
Publication date: 2024-01-25

Abstract

Provided are communication methods and a communication apparatus. A wireless communication method comprises: a first UE receiving first information, the first information being used for indicating a network access mode corresponding to an emergency service of the first UE. In the embodiments of the present application, by means of sending first information to a first UE, a network access mode of the first UE when an emergency service occurs is determined.

Description

Wireless communication method and communication equipment

Technical field

The present application relates to the field of communication technology, and more specifically, to a wireless communication method and communication equipment.

Background technique

In a communication system, when encountering an emergency, user equipment (UE) can initiate emergency services. However, when the UE needs to initiate emergency services, how to access the network is an issue that needs to be solved urgently.

Contents of the invention

This application provides a wireless communication method and communication equipment. Each aspect involved in this application is introduced below.

A first aspect provides a wireless communication method, including: a first UE receiving first information; wherein the first information is used to indicate a network access mode corresponding to an emergency service of the first UE.

In a second aspect, a wireless communication method is provided, which is characterized by including: a first communication device sending first information to a first UE; wherein the first information is used to indicate an emergency service corresponding to the first UE. Network access method.

In a third aspect, a communication device is provided. The communication device is a first UE. The first UE includes: a communication module configured to receive first information; wherein the first information is used to indicate the first The network access method corresponding to the UE's emergency service.

A fourth aspect provides a communication device, where the communication device is a first communication device, and the first communication device includes: a communication module configured to send first information to a first user equipment UE; wherein the first The information is used to indicate the network access mode corresponding to the emergency service of the first UE.

In a fifth aspect, a communication device is provided, including a transceiver, a memory and a processor. The memory is used to store programs. The processor is used to call the program in the memory and control the transceiver to receive or send information. , causing the communication device to perform the method described in the first aspect or the second aspect.

In a sixth aspect, a device is provided, including a transceiver and a processor. The processor is configured to call a program from a memory and control the transceiver to receive or send information, so that the device performs the first aspect or the second aspect. methods described in this regard.

In a seventh aspect, a chip is provided, including a processor for calling a program from a memory, so that a device installed with the chip executes the method described in the first or second aspect.

An eighth aspect provides a computer-readable storage medium on which a program is stored, and the program causes a computer to execute the method described in the first or second aspect.

A ninth aspect provides a computer program product, including a program that causes a computer to execute the method described in the first or second aspect.

In a tenth aspect, a computer program is provided, the computer program causing a computer to execute the method described in the first aspect or the second aspect.

The embodiment of this application clarifies the network access method of the first UE when an emergency service occurs by sending the first information to the first UE.

Description of drawings

Figure 1 is a system architecture diagram of a communication system to which embodiments of the present application can be applied.

Figure 2 is the system architecture diagram of the 5G system.

Figure 3 is an architectural diagram of a layer 3-based user equipment to network (UE to network, U2N) relay.

Figure 4 is an architectural diagram of U2N relay based on layer 2.

Figure 5 is an example diagram of a possible discovery process in a U2N relay scenario.

Figure 6 is an example diagram of another possible discovery process in the U2N relay scenario.

Figure 7 is a schematic flowchart of a wireless communication method provided by an embodiment of the present application.

FIG. 8 is a more specific flow example diagram of the method shown in FIG. 7 .

FIG. 9 is another more specific flow example diagram of the method shown in FIG. 7 .

FIG. 10 is another more specific flow example diagram of the method shown in FIG. 7 .

Figure 11 is a schematic structural diagram of a communication device provided by an embodiment of the present application.

Figure 12 is a schematic structural diagram of a communication device provided by another embodiment of the present application.

Figure 13 is a schematic structural diagram of a device provided by an embodiment of the present application.

Detailed ways

The embodiments of the present application can be applied to various communication systems. For example, the embodiments of the present application can be applied to global system of mobile communication (GSM) system, code division multiple access (code division multiple access, CDMA) system, wideband code division multiple access (wideband code division multiple access, WCDMA) ) system, general packet radio service (GPRS), long term evolution (LTE) system, advanced long term evolution (LTE-A) system, new radio (NR) ) system, the evolution system of the NR system, the LTE (LTE-based access to unlicensed spectrum, LTE-U) system on the unlicensed spectrum, the NR (NR-based access to unlicensed spectrum, NR-U) system on the unlicensed spectrum , universal mobile telecommunication system (UMTS), wireless local area networks (WLAN), wireless fidelity (wireless fidelity, WiFi), fifth-generation communication (5th-generation, 5G) system. The embodiments of the present application can also be applied to other communication systems, such as future communication systems. The future communication system may be, for example, a sixth-generation (6G) mobile communication system, a satellite communication system, or the like.

Traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, communication systems can not only support traditional cellular communication, but also support one or more other types of communication. For example, the communication system may support one or more of the following communications: device to device (D2D) communication, machine to machine (M2M) communication, machine type communication (MTC) , vehicle-to-vehicle (V2V) communication, and vehicle-to-everything (V2X) communication, etc. The embodiments of the present application can also be applied to communication systems that support the above communication methods.

The communication system in the embodiment of the present application can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, or a standalone (SA) network deployment scenario.

The communication system in the embodiment of the present application can be applied to unlicensed spectrum. This unlicensed spectrum can also be considered as shared spectrum. Alternatively, the communication system in the embodiment of the present application can also be applied to licensed spectrum. This licensed spectrum can also be considered as dedicated spectrum.

The embodiments of the present application can be applied to terrestrial communication networks (terrestrial networks, TN) systems, and can also be applied to non-terrestrial networks (non-terrestrial networks, NTN) systems. As an example, the NTN system may include an NR-based NTN system and an Internet of things (IoT)-based NTN system.

A communication system may include one or more UEs. The UE mentioned in the embodiments of this application may also be called terminal equipment, access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (mobile Terminal, MT), remote station, remote Terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.

In some embodiments, the UE may be a station (STATION, ST) in the WLAN. In some embodiments, the UE may also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA) ) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, UEs in next-generation communication systems (such as NR systems), or future evolution of public land mobile UE in the public land mobile network (PLMN) network, etc.

In some embodiments, a UE may point to a device that provides voice and/or data connectivity to the user. For example, the UE may be a handheld device, a vehicle-mounted device, etc. with a wireless connection function. As some specific examples, the UE can be a mobile phone (mobile phone), tablet computer (Pad), notebook computer, handheld computer, mobile Internet device (mobile internet device, MID), wearable device, virtual reality (VR) ) equipment, augmented reality (AR) equipment, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, smart grids Wireless terminals in smart grid, wireless terminals in transportation safety, wireless terminals in smart city, wireless terminals in smart home, etc.

In some embodiments, the UE may be deployed on land. For example, the UE can be deployed indoors or outdoors. In some embodiments, the UE may be deployed on water, such as on a ship. In some embodiments, the UE may be deployed in the air, such as on aircraft, balloons, and satellites.

In addition to UEs, a communication system may also include one or more network devices. The network device in the embodiment of the present application may be a device used to communicate with the UE, and the network device may also be called an access network device or a radio access network device. The network device may be a base station, for example. The network device in the embodiment of this application may refer to an access network (radio access network, RAN) node (or device) that connects the UE to the wireless network. Access network equipment can broadly cover the following names, or be replaced with the following names, such as: Node B (NodeB), evolved NodeB (eNB), next generation NodeB (gNB) , relay station, access point, transmission point (transmitting and receiving point, TRP), transmitting point (TP), main station MeNB, secondary station SeNB, multi-standard wireless (MSR) node, home base station, network controller, Access node, wireless node, access point (AP), transmission node, transceiver node, base band unit (BBU), remote radio unit (RRU), active antenna unit ( active antenna unit (AAU), radio frequency head (remote radio head, RRH), central unit (central unit, CU), distributed unit (distributed unit, DU), positioning node, etc. The base station may be a macro base station, a micro base station, a relay node, a donor node or the like, or a combination thereof. A base station may also refer to a communication module, modem or chip used in the aforementioned equipment or devices. The base station can also be a mobile switching center and a device that undertakes base station functions in device-to-device D2D, vehicle-to-everything (V2X), machine-to-machine (M2M) communications, and in 6G networks. Network side equipment, equipment that assumes base station functions in future communication systems, etc. Base stations can support networks with the same or different access technologies. The embodiments of this application do not limit the specific technology and specific equipment form used by the network equipment.

Base stations can be fixed or mobile. For example, a helicopter or drone may be configured to act as a mobile base station, and one or more cells may move based on the mobile base station's location. In other examples, a helicopter or drone may be configured to serve as a device that communicates with another base station.

In some deployments, the network device in the embodiment of this application may refer to a CU or a DU, or the network device includes a CU and a DU. gNB can also include AAU.

As an example and not a limitation, in the embodiment of the present application, the network device may have mobile characteristics, for example, the network device may be a mobile device. In some embodiments of the present application, network equipment may be satellites or balloon stations. For example, the satellite can be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geosynchronous orbit (geostationary earth orbit, GEO) satellite, a high elliptical orbit (High Elliptical Orbit, HEO) satellite ) satellite, etc. In some embodiments of the present application, the network device may also be a base station installed on land, water, or other locations.

In this embodiment of the present application, network equipment can provide services for a cell, and the UE communicates with the network equipment through the transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell. The cell can be a network equipment (for example, base station). The cell can belong to a macro base station or a base station corresponding to a small cell. The small cell here can include: urban cell (metro cell), micro cell (micro cell), pico cell (pico) Cell), femto cell, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-rate data transmission services.

Exemplarily, FIG. 1 is an architectural schematic diagram of a communication system provided by an embodiment of the present application. As shown in Figure 1, the communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a UE 120 (also known as a communication terminal or terminal). Network device 110 may provide communications coverage for a specific geographic area and may communicate with UEs located within the coverage area.

Figure 1 exemplarily shows one network device and two UEs. In some embodiments of the present application, the communication system 100 may include multiple network devices and other numbers of UEs may be included within the coverage of each network device. The embodiments of the present application do not limit this.

In some embodiments of the present application, the wireless communication system shown in Figure 1 may also include other networks such as mobility management entity (mobility management entity, MME), access and mobility management function (AMF), etc. Entity, the embodiment of this application does not limit this.

It should be understood that in the embodiments of this application, devices with communication functions in the network/system may be called communication devices. Taking the communication system 100 shown in Figure 1 as an example, the communication device may include a network device 110 and a UE 120 with communication functions. The network device 110 and the UE 120 may be the specific devices described above, which will not be described again here. The communication device may also include other devices in the communication system 100, such as network controllers, mobility management entities and other network entities, which are not limited in the embodiments of this application.

5G system architecture

As shown in Figure 2, the 5G system architecture can include three parts, namely the UE part, the data network (DN) part and the operator network part. The operator network may include one or more of the following functional entities: access network (AN) equipment, user plane function (UPF) entities, access and mobility management functions (access and mobility management) function (AMF) entity, session management function (SMF) entity, policy control function (PCF) entity, application function (AF) entity, network slice selection function, NSSF) entity, authentication server function (AUSF) entity, unified data management (UDM) entity, etc. In the above operator network, the part other than the access network equipment part can be called the core network part, and the functional entities of the core network part can be called core network elements or core network equipment.

With the continuous development of 5G applications, 5G can support more and more business forms. For example, network controlled interactive services (NCIS) are introduced into the standard as a new business form to carry out related standardized services. NCIS business mainly targets augmented reality (AR)/virtual reality (VR), games and other applications. Therefore, NCIS services have high requirements on service quality such as speed, delay, packet loss rate, and high-speed encoding and decoding. For example: VR games require the network data transmission rate to reach 10Gbps, and the packet loss rate cannot exceed 10E-4. The session established for the NCIS service is an NCIS session. UEs in the same NCIS session can be considered to form an NCIS group, such as a team in a game.

U2N relay

The topic of proximity service (ProSe) was introduced in the 3rd Generation Partnership Project (3GPP) R17 to design communication solutions for short-distance services. For example, the service types supported by ProSe include NCIS mentioned above. An important scenario for ProSe is U2N relay. U2N relay relays data to a remote UE through a relay UE, so that the remote UE can communicate with the network.

U2N relay includes layer 3-based U2N relay and layer 2-based U2N relay. The above two U2N relay methods are introduced below in conjunction with Figure 3 and Figure 4.

Figure 3 shows a simplified system architecture diagram of U2N relay based on layer 3. It can be seen from Figure 3 that a PC5 link is established between the remote UE and the relay UE (or the remote UE and the relay UE are connected through the PC5 interface). The relay UE uses a protocol data unit (PDU) session to relay data from the remote UE. A PDU session can transmit one type of data, for example, IPv4, IPv6, IPv6, Ethernet, Unstructured, etc. In other words, only data based on this type can be transmitted using the corresponding PDU session.

Figure 4 shows a system diagram of U2N relay based on layer 2. As can be seen from Figure 4, in the U2N relay architecture based on layer 2, the remote UE has its own core network element, that is, the remote UE AMF, remote UE SMF, remote UE UPF, etc. in Figure 4. In order to implement relay communication, the relay UE and the remote UE need to obtain necessary configuration parameters before relay communication. These configuration parameters can come from PCF or application server, or can be pre-configured in UE or subscriber identity module (subscriber identity module, SIM) card. Before transmitting data, the remote UE needs to find a suitable relay UE and establish a PC5 connection with it.

In R17, relay discovery can be done in the following ways: model A (model A) or model B (model B). Figure 5 shows the discovery process corresponding to mode A. Mode A is when the relay UE (i.e. UE 1 in Figure 5) actively broadcasts (UE 1 in Figure 5 broadcasts a discovery notification message to UE 2 to UE 5) that it can provide a relay service code (relay service). code,RSC). After the above discovery process, the relay UE and the remote UE establish a PC5 connection.

Figure 6 shows the discovery process corresponding to mode B. Mode B is that the remote UE (that is, UE 1 in Figure 6) first sends the RSC it needs (such as through the discovery request message (solicitation message) in Figure 6). If there is one around that can support RSC (that is, it can correspond to the RSC If the relay UE provides service support), the relay UE replies to the remote UE (it can reply through the discovery response message shown in Figure 6). After the above discovery process, the relay UE and the remote UE establish a PC5 connection.

RSC can represent services. In the U2N relay architecture based on layer 3, the core network element can configure the corresponding relationship between RSC, data network name (DNN), and slice to the UE. In this way, the remote UE can select an appropriate relay UE to provide services for the service.

When the remote UE needs to initiate an emergency service, the remote UE also needs to select a relay UE first. In order to enable the remote UE to select an appropriate relay UE, the core network element can also configure whether the RSC can provide emergency services. Of course, you can also set the RSC in a special format (or special value) for emergency services, which can save the step of configuring whether the RSC provides emergency services.

In the network of some communication systems (such as 5G systems), if the network can support emergency services, the access network equipment will broadcast that the network supports emergency services in the system information block (SIB) message. In addition, during the registration process of the UE to the core network, the AMF can notify the UE whether the network supports emergency services. In this way, the UE can learn the network's ability to support emergency services.

If the network can directly support emergency services through the air interface (Uu interface), and there is also a relay network supporting emergency services around the UE, then when emergency services need to be initiated, how to access the network is an urgent problem to be solved.

If the above problems are not solved well, they may cause many problems. For example, regulatory agencies in some regions may require that when the UE can initiate emergency services directly through the air interface and it is available, the UE needs to initiate emergency services through direct connection; regulatory agencies in some regions may not require this. If the emergency service initiation method is not selected appropriately, it may not comply with local (national or regional) regulatory requirements. For another example, if the UE always simply chooses to initiate emergency services directly through the air interface, it may cause waste in the deployment of the relay network, and may even cause the UE to need to reconnect to the network, thus affecting other non-emergency services.

The wireless communication method provided by the embodiment of the present application is described in detail below.

Figure 7 is a schematic flow chart of a wireless communication method provided by an embodiment of the present application. As shown in Figure 7, the method of Figure 7 is performed by the first UE and the first communication device.

In some embodiments, the first UE may be a remote UE, and the first communication device may be an access network device.

In some embodiments, the first UE may be a remote UE, and the first communication device may be a mobility management network element of the core network. Taking 5G as an example, the mobility management network element may be an AMF.

In some embodiments, the first UE may be a remote UE, and the first communication device may be a policy control network element of the core network. Taking 5G as an example, the policy control network element can be PCF.

In some embodiments, the first UE may be a remote UE, and the first communication device may be a relay UE.

In some embodiments, the first UE may be a relay UE, and the first communication device may be a mobility management network element of the core network. Taking 5G as an example, the mobility management network element may be an AMF.

In some embodiments, the first UE may be a relay UE, and the first communication device may be a policy control network element of the core network. Taking 5G as an example, the policy control network element can be PCF.

In some embodiments, the first UE may be a relay UE, and the first communication device may be an access network device.

Referring to Figure 7, in step S710, the first UE receives the first information sent by the first communication device. The first information may be used to indicate the network access mode corresponding to the emergency service of the first UE.

The embodiment of this application does not specifically limit the type of emergency services and can be set according to actual needs. In some embodiments, the emergency service may be 110, 120, etc. services.

The network mentioned in the embodiment of this application may refer to a communication network or a cellular network. In addition, the network access method mentioned in the embodiment of this application may refer to the method in which the UE establishes a communication connection with the access network device (such as a base station). Alternatively, the network access mode may refer to the mode in which the UE accesses the mobile communication network. Taking 5G as an example, the network access method can refer to the way the UE accesses the 5G network.

For example, the network access method may include one or more of the following: a first network access method based on direct access to the network based on an air interface (such as a Uu interface), and a second network access method based on relay UE access to the network.

The first network access method refers to that the UE directly establishes a communication connection with the access network device through the air interface, thereby accessing the communication network. In some embodiments, the first network access mode may also be called a direct connection mode.

The second network access method refers to that the UE indirectly establishes a communication connection with the access network device through the relay UE, thereby accessing the communication network. In some embodiments, the second network access mode may also be called a relay mode.

In some embodiments, the aforementioned network access method corresponding to the first UE's emergency service may include one or more of the following: the first UE's preferred network access method for the emergency service; The preferred network access method for emergency services; the alternative network access method for emergency services of the first UE; the alternative network access method for the first UE's emergency services.

In some embodiments, the first information may be used to indicate that the network access mode (or preferred network access mode) of the first UE is the first network access mode. In other words, the first information instructs the first UE to access the network based on the first network access mode (or the preferred selection is based on the first network access mode) when it needs to process emergency services, and process the emergency services.

In some embodiments, if the network access method (or preferred network access method) of the emergency service is the first network access method, and there is a target network (that is, a network that supports processing of emergency services based on the first network access method, The so-called "target network exists" means that the target network can be used by the first UE (for example, the first UE is within the coverage of the target network), then the first UE accesses based on (or must be based on) the first network way to handle emergency business. For example, regulatory agencies in some regions require that when a target network exists, the UE needs to initiate emergency services through the first network access method. Faced with this situation, the first information can be used to instruct the first UE to use the first network access method as the preferred network access method when initiating emergency services, so that the use of emergency services needs to comply with local (national or regional) supervision. Requirements.

In some embodiments, if the network access mode (or preferred network access mode) of the emergency service is the first network access mode and there is no target network, the first UE may handle the emergency based on the second network access mode. business.

In some embodiments, if the network access mode (or preferred network access mode) of the emergency service is the first network access mode and the target network does not exist, the first UE may not be allowed to process the emergency service.

In some embodiments, the first information may be used to indicate that the network access mode (or preferred network access mode) of the first UE is the second network access mode. In other words, the first information instructs the first UE to access the network based on the second network access method (or the preferred selection is based on the second network access method) when it needs to process emergency services, and process the emergency services.

In some embodiments, if the network access method (or preferred network access method) of the emergency service is the second network access method, and there is a target network (that is, a network that supports processing of emergency services based on the second network access method, The so-called "target network exists" means that the target network can be used by the first UE (for example, the first UE is within the coverage of the target network), then the first UE is based on (or must be based on) access to the second network way to handle emergency business.

In some embodiments, if the network access mode (or preferred network access mode) of the emergency service is the second network access mode and there is no target network, the first UE may handle the emergency based on the first network access mode. business.

In some embodiments, if the network access mode (or preferred network access mode) of the emergency service is the second network access mode and the target network does not exist, the first UE may not be allowed to process the emergency service.

In some embodiments, the first information may be used to indicate that the network access mode of the first UE is the third network access mode. The third network access method may have no preference for the first UE's network access method. It should be noted that the first information may indicate “no preference for the network access mode of the first UE” in multiple ways. For example, the first information may directly indicate "no preference". For another example, the first information may be "null", thereby indirectly indicating that there is no preference for the network access mode of the first UE. For another example, the first information may instruct the first UE to choose between the first network access mode and the second network access mode, which may also mean that there is no preference for the first UE's network access mode.

In some embodiments, if the network access mode of the emergency service is the third network access mode, the first UE may process the emergency service based on the first network access mode or the second network access mode. As an example, the first UE can randomly select a network access mode based on the surrounding network conditions, or the first UE can also combine the surrounding network conditions and select a network based on its pre-configured network access mode selection policy. Access method.

The content and instruction method of the first information are described in detail above. The configuration and/or carrying method of the first information will be described in detail below with reference to specific embodiments.

Embodiment 1: The first information is configured by the policy control network element in the core network

In Embodiment 1, the first information is configured by the policy control network element in the core network. For example, the policy control network element may configure a UE policy (UE policy) including the first information for the first UE. After the configuration is completed, the policy control network element can send the UE policy to the first UE through other core network elements.

The following is a detailed description of the configuration method of the first information with reference to Figure 8, taking the policy control network element as the PCF in 5G as an example.

Referring to Figure 8, in step S810, the PCF sends the Namf_Communication_N1N2MessageTransfer message to the AMF. This message contains UE policy. The UE policy carries the first information. The first information may indicate the preferred network access mode of the emergency service to the first UE. The preferred network access method may include, for example, the first network access method (that is, direct access to the network based on the air interface) or no preference. If the first information indicates that the first UE's preferred network access mode is the first network access mode, then when there is a target network that supports initiating emergency services in the first network access mode, the first UE must select the first network access mode. The access mode is used as the network access mode for emergency services of the first UE.

In step S820, the AMF delivers the UE policy (delivery of UE policies) to the first UE.

In step S830, the first UE sends the delivery result of the UE policy (result of delivery of UE policies) to the AMF.

In step S840, the AMF sends a Namf_Communication_N1MessageNotify message to the PCF to feed back the delivery result of the UE policy.

The first UE (the role of the first UE in the relay network is the remote UE) can be based on the relay service code of the emergency service in the U2N relay discovery notification message (model A) or the U2N relay discovery response (model B). , determine whether there is a network that supports initiating emergency services in the second access mode (that is, accessing the network through a relay UE). In addition, the first UE may determine according to the SIB message of the air interface whether there is a network that supports initiating emergency services in the first network access mode (that is, direct access to the network based on the air interface).

If the preferred network access mode of the emergency service configured by the PCF for the first UE is the first network access mode, then when the first UE needs to initiate the emergency service, if there is a network that supports initiating the emergency service in the first network access mode , then the first UE must select the first network access mode as the network access mode of the emergency service of the first UE. If the target network does not exist, the first UE may select the second network access mode as the network access mode for the emergency service of the first UE.

If the preferred network access mode of the emergency service configured by the PCF for the first UE is no preference for network access mode, or the PCF does not configure the preferred network access mode of the emergency service, the first UE may select the first network access mode. mode or the second network access mode as the network access mode when the first UE initiates the emergency service.

Embodiment 2: The first information is configured by the mobility management network element in the core network

In Embodiment 2, the first information is configured by the mobility management network element in the core network. For example, the mobility management network element may configure the first information during the registration process of the first UE. For example, the mobility management network element may carry the first information in the registration acceptance message of the first UE.

Next, with reference to Figure 9, taking the mobility management network element as the AMF in 5G as an example, the configuration method of the first information will be described in detail.

Referring to Figure 9, in step S910, the first UE sends a registration request (registration request) message to the AMF. This message can carry one or more of the following parameters: 5G globally unique temporary identifier (5G-GUTI), the security capability of the first UE, and requested NSSAI.

In step S920, the AMF sends a registration accept message (registration accept) to the first UE. The registration acceptance message may carry the new 5G-GUTI and the first information. The first information may indicate the preferred network access mode of the emergency service to the first UE. The preferred network access method may include, for example, the first network access method (that is, direct access to the network based on the air interface) or no preference. If the first information indicates that the first UE's preferred network access mode is the first network access mode, then when there is a target network that supports initiating emergency services in the first network access mode, the first UE must select the first network access mode. The access mode is used as the network access mode for emergency services of the first UE.

In step S930, the first UE sends a registration complete message to the AMF. This registration completion message can be used to confirm that the new 5G-GUTI takes effect.

If the preferred network access mode of the emergency service configured by the AMF for the first UE is the first network access mode, then when the first UE needs to initiate the emergency service, if there is a network that supports initiating the emergency service in the first network access mode , then the first UE must select the first network access mode as the network access mode of the emergency service of the first UE. If the target network does not exist, the first UE may select the second network access mode as the network access mode for the emergency service of the first UE.

If the preferred network access mode of the emergency service configured by the AMF for the first UE is no preference for the network access mode, or the AMF does not configure the preferred network access mode of the emergency service, the first UE may select the first network access mode. mode or the second network access mode as the network access mode when the first UE initiates the emergency service.

Embodiment 3: The first information is configured by the access network device

In Embodiment 3, the first information is configured by the access network device. For example, the access network device may configure the first information for the first UE through a broadcast message or dedicated signaling. The broadcast message may be, for example, a SIB message or a MIB message. The dedicated signaling may be, for example, an RRC release message or an RRC reconfiguration message.

Next, with reference to Figure 10, taking the access network device as a gNB in 5G as an example, the configuration method of the first information will be described in detail.

Referring to Figure 10, in step S1010, the gNB sends a broadcast message or dedicated signaling to the first UE. The broadcast message or dedicated signaling may carry the first information. The first information may indicate the preferred network access mode of the emergency service to the first UE. The preferred network access method may include, for example, the first network access method (that is, direct access to the network based on the air interface) or no preference. If the first information indicates that the first UE's preferred network access mode is the first network access mode, then when there is a target network that supports initiating emergency services in the first network access mode, the first UE must select the first network access mode. The access mode is used as the network access mode for emergency services of the first UE.

If the preferred network access mode of the emergency service configured by the gNB for the first UE is the first network access mode, then when the first UE needs to initiate the emergency service, if there is a network that supports initiating the emergency service in the first network access mode , then the first UE must select the first network access mode as the network access mode of the emergency service of the first UE. If the target network does not exist, the first UE may select the second network access mode as the network access mode for the emergency service of the first UE.

If the preferred network access mode of the emergency service configured by gNB for the first UE is no preference for network access mode, or the gNB does not configure the preferred network access mode of the emergency service, the first UE may select the first network access mode. mode or the second network access mode as the network access mode when the first UE initiates the emergency service.

Embodiment 4: The first information is configured by the relay UE

In Embodiment 4, the first information is configured by the relay UE. For example, the first information may be transmitted by the relay UE to the first UE (remote UE) through a discovery message. Among them, the discovery message can also be called a D2D discovery message (device-to-device discovery message), which can be used by a certain UE to discover other UEs other than the UE (for example, the first UE). Referring to Figures 5 and 6, the first information may be carried in the U2N relay discovery notification message (model A) or the U2N relay discovery response (model B). The first information may indicate to the first UE the preferred network access method for the emergency service. The preferred network access method may include, for example, the first network access method (that is, direct access to the network based on the air interface) or no preference. If the first information indicates that the first UE's preferred network access mode is the first network access mode, then when there is a target network that supports initiating emergency services in the first network access mode, the first UE must select the first network access mode. The access mode is used as the network access mode for emergency services of the first UE.

In some embodiments, the relay UE may obtain the network access mode (or preferred network access mode) of the first UE based on the methods described in Embodiments 1 to 3.

The first UE can determine whether there is support for the second access mode (i.e. through the relay) based on the relay service code of the emergency service in the U2N relay discovery notification message (model A) or the U2N relay discovery response (model B). UE access network) the network that initiates emergency services. In addition, the first UE may determine according to the SIB message of the air interface whether there is a network that supports initiating emergency services in the first network access mode (that is, direct access to the network based on the air interface).

The method embodiments of the present application are described in detail above with reference to Figures 1 to 10, and the device embodiments of the present application are described in detail below with reference to Figures 11 to 13. It should be understood that the description of the method embodiments corresponds to the description of the device embodiments. Therefore, the parts not described in detail can be referred to the previous method embodiments.

Figure 11 is a schematic structural diagram of a communication device provided by an embodiment of the present application. The communication device 1100 shown in Figure 11 may be the first UE mentioned above. The communication device 1100 may include a communication module 1110 . The communication module 1110 may be configured to receive first information; wherein the first information is used to indicate the network access mode corresponding to the emergency service of the first UE.

Optionally, in some embodiments, the network access method corresponding to the emergency service includes the preferred network access method corresponding to the emergency service.

Optionally, in some embodiments, the first information is used to indicate one of the following: a first network access method based on air interface direct access to the network; a second network access method based on relay UE access network Access method; a third network access method that has no preference for network access methods.

Optionally, in some embodiments, the communication device 1100 further includes a processing module configured to: if the network access mode of the emergency service is the first network access mode and there is a target network , then the emergency service is processed based on the first network access mode; or, if the network access mode of the emergency service is the first network access mode and there is no target network, then the emergency service is processed based on the first network access mode. A second network access method is used to process the emergency service; wherein the target network is a network that supports processing the emergency service based on the first network access method.

Optionally, in some embodiments, if the network access mode of the emergency service is the third network access mode, the first UE is based on the first network access mode or the second network access mode. The network access method handles the emergency services.

Optionally, in some embodiments, the network access mode of the emergency service is configured by one of the following: a policy control network element in the core network, a mobility management network element in the core network, or access network equipment. , relay UE.

Optionally, in some embodiments, the first information is carried in one of the following: a UE policy sent by a policy control network element of the core network; a registration acceptance message sent by a mobility management network element of the core network; Broadcast messages or proprietary signaling sent by network access equipment; discovery messages sent by relay UE.

Figure 12 is a schematic structural diagram of a communication device provided by another embodiment of the present application. The communication device 1200 shown in Figure 12 may be the first communication device mentioned above. The communication device 1200 may include a communication module 1210. The communication module 1210 may be configured to send first information to the first UE; wherein the first information is used to indicate the network access mode corresponding to the emergency service of the first UE.

Optionally, in some embodiments, the network access mode of the emergency service is configured by one of the following: a policy control network element in the core network, a mobility management network element in the core network, or access network equipment. .

Optionally, in some embodiments, the first communication device is one of the following: an access network device; a mobility management network element of the core network; a policy control network element of the core network; or a relay UE.

Figure 13 is a schematic structural diagram of the device according to the embodiment of the present application. The dashed line in Figure 13 indicates that the unit or module is optional. The device 1300 can be used to implement the method described in the above method embodiment. Device 1300 may be a chip or communication device. The communication device may be, for example, the first UE or the first communication device mentioned above.

Apparatus 1300 may include one or more processors 1310. The processor 1310 can support the device 1300 to implement the method described in the foregoing method embodiments. The processor 1310 may be a general-purpose processor or a special-purpose processor. For example, the processor may be a central processing unit (CPU). Alternatively, the processor 1310 can also be another general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), or an off-the-shelf programmable gate array (FPGA). ) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.

Apparatus 1300 may also include one or more memories 1320. The memory 1320 stores a program, which can be executed by the processor 1310, so that the processor 1310 executes the method described in the foregoing method embodiment. The memory 1320 may be independent of the processor 1310 or integrated in the processor 1310.

Apparatus 1300 may also include a transceiver 1330. Processor 1310 may communicate with other devices or chips through transceiver 1330. For example, the processor 1310 can transmit and receive data with other devices or chips through the transceiver 1330 .

In some embodiments, apparatus 1300 may be located in communication device 1100 in Figure 11. The communication module 1110 in the communication device 1100 may correspond to a transceiver in the apparatus 1300. Alternatively, the functions of the communication module 1110 may be implemented by the transceiver 1330 in the device 1300 under the control of the processor 1310.

In some embodiments, apparatus 1300 may be located in communication device 1200 in Figure 12. The communication module 1210 in the communication device 1200 may correspond to the transceiver in the apparatus 1300. Alternatively, the functions of the communication module 1210 may be implemented by the transceiver 1330 in the device 1300 under the control of the processor 1310.

An embodiment of the present application also provides a computer-readable storage medium for storing a program. The computer-readable storage medium can be applied in the communication device provided by the embodiments of the present application, and the program causes the computer to execute the methods performed by the communication device in various embodiments of the present application.

An embodiment of the present application also provides a computer program product. The computer program product includes a program. The computer program product can be applied in the communication device provided by the embodiments of the present application, and the program causes the computer to execute the methods performed by the communication device in various embodiments of the present application.

An embodiment of the present application also provides a computer program. The computer program can be applied to the terminal device or network device provided by the embodiments of the present application, and the computer program causes the computer to execute the method performed by the communication device in various embodiments of the present application.

It should be understood that the "instruction" mentioned in the embodiments of this application may be a direct instruction, an indirect instruction, or an association relationship. For example, A indicates B, which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association between A and B. relation.

In the description of the embodiments of this application, the term "correspondence" can mean that there is a direct correspondence or indirect correspondence between the two, it can also mean that there is an associated relationship between the two, or it can mean indicating and being instructed, configuration and being. Configuration and other relationships.

"Configuration" in the embodiment of this application may include configuring through at least one of system messages, radio resource control (radio resource control, RRC) signaling, and media access control element (MAC CE) .

In some embodiments of the present application, "predefined" or "preset" can be achieved by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in devices (for example, including terminal devices and network devices). To implement, this application does not limit its specific implementation. For example, predefined can refer to what is defined in the protocol.

In some embodiments of this application, the "protocol" may refer to a standard protocol in the communication field, which may include, for example, LTE protocol, NR protocol, and related protocols applied in future communication systems. This application does not limit this.

It should be understood that the term "and/or" in this article is only an association relationship describing related objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, and A and B exist simultaneously. , there are three situations of B alone. In addition, the character "/" in this article generally indicates that the related objects are an "or" relationship.

It should be understood that in the various embodiments of the present application, the size of the sequence numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its functions and internal logic, and should not be used in the embodiments of the present application. The implementation process constitutes any limitation.

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

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

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

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, e.g., the computer instructions may be transferred from a website, computer, server, or data center Transmission to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that can be read by a computer or a data storage device such as a server or data center integrated with one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., digital video discs (DVD)) or semiconductor media (e.g., solid state disks (SSD) )wait.

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

Claims

A wireless communication method, characterized by including:

The first user equipment UE receives the first information;

The first information is used to indicate the network access mode corresponding to the emergency service of the first UE.
The method according to claim 1, characterized in that the network access mode corresponding to the emergency service includes the preferred network access mode corresponding to the emergency service.
The method according to claim 1 or 2, characterized in that the first information is used to indicate one of the following:

The first network access method based on air interface direct access to the network;

A second network access method based on relay UE access network;

A third network access method with no preference for network access methods.
The method of claim 3, further comprising:

If the network access mode of the emergency service is the first network access mode and a target network exists, the first UE processes the emergency service based on the first network access mode; or,

If the network access mode of the emergency service is the first network access mode and there is no target network, the first UE processes the emergency service based on the second network access mode;

Wherein, the target network is a network that supports processing of the emergency service based on the first network access mode.
The method according to claim 3, characterized in that:

If the network access mode of the emergency service is the third network access mode, the first UE processes the emergency service based on the first network access mode or the second network access mode.
The method according to any one of claims 1 to 5, characterized in that the network access mode of the emergency service is configured by one of the following: a policy control network element in the core network, a mobile network element in the core network Manage network elements, access network equipment, and relay UE.
The method according to any one of claims 1-6, characterized in that the first information is carried in one of the following:

The policy of the core network controls the UE policy sent by the network element;

The registration acceptance message sent by the mobility management network element of the core network;

Broadcast messages or proprietary signaling sent by access network equipment;

Relays discovery messages sent by the UE.
A wireless communication method, characterized by including:

The first communication device sends the first information to the first user equipment UE;

The first information is used to indicate the network access mode corresponding to the emergency service of the first UE.
The method according to claim 8, characterized in that the network access mode corresponding to the emergency service includes the preferred network access mode corresponding to the emergency service.
The method according to claim 8 or 9, characterized in that the first information is used to indicate one of the following:

The first network access method based on air interface direct access to the network;

A second network access method based on relay UE access network;

A third network access method with no preference for network access methods.
The method according to any one of claims 8-10, characterized in that the network access mode of the emergency service is configured by one of the following: a policy control network element in the core network, a mobile network element in the core network Manage network elements and access network equipment.
The method according to any one of claims 8-11, characterized in that the first information is carried in one of the following:

The policy of the core network controls the UE policy sent by the network element;

The registration acceptance message sent by the mobility management network element of the core network;

Broadcast messages or proprietary signaling sent by access network equipment;

Relays discovery messages sent by the UE.
The method according to any one of claims 8-12, characterized in that the first communication device is one of the following:

Access network equipment;

Mobility management network elements of the core network;

Core network policy control network elements;

Relay UE.
A communication device, characterized in that the communication device is a first user equipment UE, and the first UE includes:

Communication module, used to receive the first information;

The first information is used to indicate the network access mode corresponding to the emergency service of the first UE.
The communication device according to claim 14, wherein the network access method corresponding to the emergency service includes a preferred network access method corresponding to the emergency service.
The communication device according to claim 14 or 15, characterized in that the first information is used to indicate one of the following:

The first network access method based on air interface direct access to the network;

A second network access method based on relay UE access network;

A third network access method with no preference for network access methods.
The communication device according to claim 16, characterized in that the communication device further includes:

A processing module configured to process the emergency service based on the first network access mode if the network access mode of the emergency service is the first network access mode and a target network exists; or,

If the network access mode of the emergency service is the first network access mode and there is no target network, processing the emergency service based on the second network access mode;

Wherein, the target network is a network that supports processing of the emergency service based on the first network access mode.
The communication device according to claim 16, characterized in that:

If the network access mode of the emergency service is the third network access mode, the first UE processes the emergency service based on the first network access mode or the second network access mode.
The communication device according to any one of claims 14 to 18, characterized in that the network access mode of the emergency service is configured by one of the following: a policy control network element in the core network, Mobility management network elements, access network equipment, and relay UE.
The communication device according to any one of claims 14-19, characterized in that the first information is carried in one of the following:

The policy of the core network controls the UE policy sent by the network element;

The registration acceptance message sent by the mobility management network element of the core network;

Broadcast messages or proprietary signaling sent by access network equipment;

Relays discovery messages sent by the UE.
A communication device, characterized in that the communication device is a first communication device, and the first communication device includes:

A communication module, configured to send the first information to the first user equipment UE;

The first information is used to indicate the network access mode corresponding to the emergency service of the first UE.
The communication device according to claim 21, wherein the network access mode corresponding to the emergency service includes a preferred network access mode corresponding to the emergency service.
The communication device according to claim 21 or 22, characterized in that the first information is used to indicate one of the following:

The first network access method based on air interface direct access to the network;

A second network access method based on relay UE access network;

A third network access method with no preference for network access methods.
The communication device according to any one of claims 21-23, characterized in that the network access mode of the emergency service is configured by one of the following: a policy control network element in the core network, Mobility management network elements and access network equipment.
The communication device according to any one of claims 21-24, characterized in that the first information is carried in one of the following:

The policy of the core network controls the UE policy sent by the network element;

The registration acceptance message sent by the mobility management network element of the core network;

Broadcast messages or proprietary signaling sent by access network equipment;

Relays discovery messages sent by the UE.
The communication device according to any one of claims 21-25, characterized in that the first communication device is one of the following:

Access network equipment;

Mobility management network elements of the core network;

Core network policy control network elements;

Relay UE.
A communication device, characterized in that it includes a transceiver, a memory and a processor, the memory is used to store programs, the processor is used to call the program in the memory, and control the transceiver to receive or send information, causing the communication device to perform the method as described in any one of claims 1-7, or causing the communication device to perform the method as described in any one of claims 8-13.
A device, characterized in that it includes a transceiver and a processor. The processor is used to call a program from a memory and control the transceiver to receive or send information, so that the device performs any of claims 1-7. The method described in any one of claims 8-13, or causing the device to perform the method described in any one of claims 8-13.
A chip, characterized in that it includes a processor for calling a program from a memory, so that a device installed with the chip executes the method according to any one of claims 1 to 7, or causes the device installed with the chip to The device performs the method according to any one of claims 8-13.
A computer-readable storage medium, characterized in that a program is stored thereon, and the program causes the computer to perform the method as claimed in any one of claims 1-7, or causes the computer to perform the method as claimed in claims 8-13. any of the methods described.
A computer program product, characterized in that it includes a program that causes a computer to perform the method as described in any one of claims 1-7, or causes the computer to perform as described in any one of claims 8-13 Methods.
A computer program, characterized in that the computer program causes the computer to perform the method as described in any one of claims 1-7, or causes the computer to perform the method as described in any one of claims 8-13.