Communication methods and communication devices

Abstract

Provided are communication methods and communication devices. A method comprises: a terminal device receives first information sent by a first device, the first information being used for determining one or more of the following: whether the terminal device is in a country associated with the CEN, and whether the terminal device is applicable to an emergency call requirement corresponding to the CEN to make an emergency call.

Description

Communication methods and communication equipment Technical Field

[0001] This application relates to the field of communication technology, and more specifically, to a communication method and a communication device. Background Technology

[0002] Vehicle emergency call (eCall) systems are gradually becoming an important tool for ensuring road safety. By integrating mobile communication technology and satellite positioning, this system can automatically or manually activate after an accident to quickly establish contact with a public safety answering point (PSAP), providing accurate accident information and significantly improving rescue response speed and life-saving efficiency.

[0003] Currently, the European Committee for Standardization (CEN) has introduced new requirements for the emergency call procedure defined in the 3rd Generation Partnership Project (3GPP) specifications. For example, CEN requires that after an emergency call is completed, a callback from the PSAP (Power, Service, Access) be waited for. Before applying the emergency call procedure proposed by CEN, the terminal device needs to determine whether it is located in a CEN-relevant country. Therefore, how to detect whether a terminal device is located in a CEN-relevant country is an urgent problem to be solved.

[0004] Summary of the Invention

[0005] This application provides a communication method and a communication device. The various aspects covered by this application are described below.

[0006] In a first aspect, a communication method is provided, comprising: a terminal device receiving first information sent by a first device, the first information being used to determine one or more of the following: whether the terminal device is located in a country associated with CEN; and whether the terminal device is subject to the emergency call requirements corresponding to CEN for making an emergency call.

[0007] In a second aspect, a communication method is provided, comprising: a first device sending first information to a terminal device, the first information being used to determine one or more of the following: whether the terminal device is located in a country associated with CEN; and whether the terminal device is subject to the emergency call requirements corresponding to CEN for making an emergency call.

[0008] Thirdly, a communication device is provided, the communication device being a terminal device, the communication device comprising: a communication module, configured to receive first information sent by a first device, the first information being configured to determine one or more of the following: whether the terminal device is located in a country associated with CEN; whether the terminal device is subject to the emergency call requirements corresponding to CEN for making an emergency call.

[0009] Fourthly, a communication device is provided, the communication device being a first device, the communication device comprising: a communication module, configured to send first information to a terminal device, the first information being configured to determine one or more of the following: whether the terminal device is located in a country associated with CEN; whether the terminal device is subject to the emergency call requirements corresponding to CEN for making an emergency call.

[0010] Fifthly, a communication device is provided, including a transceiver, a memory, and a processor, wherein the memory is used to store a program, the processor is used to invoke the program in the memory, and to control the transceiver to receive or transmit signals, so that the communication device performs the method as described in the first or second aspect.

[0011] A sixth aspect provides an apparatus including a processor for calling a program from a memory to cause the apparatus to perform the method as described in the first or second aspect.

[0012] A seventh aspect provides a chip including a processor for calling a program from memory, causing a device on which the chip is mounted to perform the method as described in the first or second aspect.

[0013] Eighthly, a computer-readable storage medium is provided having a program stored thereon that causes a computer to perform the method as described in the first or second aspect.

[0014] Ninth aspect, a computer program product is provided, characterized in that it includes a program that causes a computer to perform the method as described in the first or second aspect.

[0015] In a tenth aspect, a computer program is provided that causes a computer to perform the method as described in the first or second aspect.

[0016] This application introduces first information in its embodiments. This first information is used to determine one or more of the following: whether the terminal device is located in a country associated with CEN; and whether the terminal device is subject to the emergency call requirements corresponding to CEN when making an emergency call. The introduction of first information helps the terminal device to clarify whether the CEN requirements for emergency calls apply, thereby improving the robustness of the communication process. Attached Figure Description

[0017] Figure 1 is a system architecture example diagram of a wireless communication system applicable to embodiments of this application.

[0018] Figure 2 is a structural example of the eCall system.

[0019] Figure 3 is a structural example of the eCall system shown in Figure 2.

[0020] Figure 4 is a flowchart illustrating the communication method provided in an embodiment of this application.

[0021] Figure 5 is a schematic diagram of the structure of a communication device provided in one embodiment of this application.

[0022] Figure 6 is a schematic diagram of the structure of a communication device provided in another embodiment of this application.

[0023] Figure 7 is a schematic diagram of a device applicable to embodiments of this application. Detailed Implementation

[0024] The technical solutions in this application will now be described with reference to the accompanying drawings.

[0025] Wireless communication system

[0026] Figure 1 is a system architecture example diagram of a wireless communication system 100 applicable to embodiments of this application. The wireless communication system 100 may include a network device 110 and a terminal device 120. The network device 110 may be a device that communicates with the terminal device 120. The network device 110 can provide network coverage for a specific geographical area and can communicate with the terminal device 120 located within that coverage area. The terminal device 120 can access a network (such as a wireless network) through the network device 110. Optionally, the wireless communication system 100 may also include other network entities such as a network controller and a mobility management entity; this embodiment of the application does not limit this.

[0027] It should be understood that the technical solutions of the embodiments of this application can be applied to various communication systems, such as 5G systems or new radio (NR), long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, etc. The technical solutions provided in this application can also be applied to future communication systems, such as sixth-generation mobile communication systems, satellite communication systems, and so on.

[0028] The terminal device in this application embodiment can also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device. The terminal device in this application embodiment can be a device that provides voice and / or data connectivity to a user, and can be used to connect people, objects, and machines, such as a handheld device with wireless connectivity, vehicle-mounted device, etc. The terminal devices in the embodiments of this application can be mobile phones, tablets, laptops, PDAs, mobile internet devices (MIDs), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, self-driving, remote medical surgery, smart grids, transportation safety, smart cities, and smart homes, etc. Optionally, the terminal device can act as a base station. For example, the terminal device can act as a scheduling entity, providing sidelink signals between terminal devices in vehicle-to-everything (V2X) or device-to-device (D2D) systems. For instance, cellular phones and cars communicate with each other using sidelink signals. Cellular phones and smart home devices communicate without relaying communication signals through base stations.

[0029] The network device in this application embodiment can be a device for communicating with terminal devices. This network device can be, for example, an access network device or a wireless access network device. For instance, the network device can be a base station. The term "base station" can broadly encompass various names, or be replaced by, the following: NodeB, evolved NodeB (eNB), next-generation NodeB (gNB), relay station, access point, transmitting and receiving point (TRP), transmitting point (TP), home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. A base station can be a macro base station, micro base station, relay node, donor node, or the like, or a combination thereof.

[0030] In traditional communication systems (such as traditional NR systems), network devices periodically send system information (such as system information blocks (SIBs)). This system information is very important for idle terminal devices because they can use it to access the cell.

[0031] However, some information in the periodically transmitted system messages is wasted (for example, at a certain moment, a network device sends system information, but no terminal device needs to receive it at that time). Furthermore, because network devices need to constantly maintain system information, they cannot enter deep sleep mode to save power. According to operator statistics, electricity consumption is one of the main sources of operators' operating costs. Therefore, reducing the power consumption of network devices would not only help to better operate future cellular systems but also benefit the ecosystem (such as reducing carbon emissions and thus slowing down global warming).

[0032] However, if network devices directly delete system information, idle terminal devices will be unable to access the cell. Therefore, an ideal approach is for terminal devices to request cell system information on demand, while network devices transmit system information to terminal devices only when necessary.

[0033] Therefore, the embodiments of this application are concerned with how to effectively communicate with a cell while considering network energy saving. This solution can be applied to communication systems provided by related technologies, such as NR systems, and can also be applied to future communication systems, such as sixth-generation (6G) communication systems.

[0034] eCall system

[0035] Figure 2 shows the system architecture of the eCall system used in this application embodiment. The eCall system includes: an in-vehicle terminal device 120, a network 130, and a public safety answering point (PSAP) 140. The in-vehicle terminal device 120 includes an in-vehicle system (IVS). When the IVS in the in-vehicle terminal device detects a traffic accident, it initiates an eCall. Voice data is sent to the PSAP via voice channel 100, and relevant information such as the vehicle's current global positioning system (GPS) coordinates, the time of the accident, and vehicle description are sent to the PSAP in minimum set of data (MSD) format via data channel 110. It should be noted that the PSAP can be implemented using a server.

[0036] Specifically, as shown in Figure 3, the IVS in the vehicle-mounted terminal equipment 120 may include one or more of the following: an MSD information source, an IVS data modern, a GPS receiver, a microphone and speaker, a speech codec, and a radio modern. The network 130 may include a public land mobile network (PLMN) and a public switched telephone network (PSTN) / global switched telephone network (GSTN). The PLMN may include one or more of the following: a base station controller (BTS), a transcoding and rate adaptation unit (TRAU), and a mobile switching center (MCS). The PSAP 140 may include a PSAP data modern, an MSD display, and a speaker. The PSAP data modern, MSD display, and speaker may be integrated into the same device or be separate physical entities. When a vehicle accident occurs, the terminal device initiates an eCall to the PSAP via the network and sends the voice data and MSD format data of the eCall to the PASP.

[0037] CEN Requirements for eCall Systems

[0038] On March 12, 2024, CEN sent a liaison statement (LS) to the 3rd Generation Partnership Project (3GPP) technical specification group (TSG) system architecture (SA) and the 3GPP TSG core network and terminals (CT) to notify the 3GPP organization in Europe of new regulations or standards regarding eCall and Internet Protocol Multimedia Subsystem (IMS)-eCall (see CP-241245). These regulations specify the requirements of CEN member countries for PSAP, vehicles, and IVS.

[0039] Currently, CEN member states include: all EU member states; three EFTA member states: Iceland, Norway, and Switzerland; and other countries such as the UK, North Macedonia, Turkey, and Serbia.

[0040] In addition, the current CEN member states include Albania, Armenia, Azerbaijan, Belarus, Bosnia and Herzegovina, Egypt, Georgia, Israel, Jordan, Lebanon, Moldova, Montenegro, Morocco, Tunisia, and Ukraine.

[0041] In addition, CEN's current partner standardization bodies include Australia, Canada, Mongolia, and Kazakhstan.

[0042] In LS (CP-241245), CEN requires 3GPP TSG to modify 3GPP specifications to meet CEN's new requirements for emergency systems. The 3GPP specifications mentioned here mainly refer to 3GPP TS 24.229 (within the scope of responsibility of the 3GPP CT1 working group) and 3GPP TS 23.167 (within the scope of responsibility of the 3GPP SA2 working group).

[0043] In response to CEN's LS, 3GPP TSG CT and SA also issued a liaison statement. This statement requests that the 3GPP CT1 working group (WG) take the lead in investigating the differences between the requirements put forward by CEN and the provisions in the 3GPP specification (3GPP TS 24.229). See 3GPP TSG CT's LS (CP-241307) and 3GPP TSG SA's LS (SP-240973).

[0044] In LS (CP-241245), CEN sets forth the following requirements for the testing process of next-generation (NG) IMS-eCall:

[0045] (a) Testing NG IMS-eCall should include MSD;

[0046] (b) Testing NG IMS-eCall should be performed as a regular IMS-eCall so that testing NG IMS-eCall does not interfere with the emergency services provided by PSAP. Currently, 3GPP TS 24.229 does not specify how terminal equipment should perform testing NG IMS-eCall.

[0047] Furthermore, in LS (CP-241245), CEN points out the following inconsistencies between its current requirements and 3GPP regarding NG IMS-eCall:

[0048] If the IVS is not in a limited service state, it should remain registered and wait for a possible PSAP callback. Currently, 3GPP TS 24.229 specifies several different behaviors for the IVS. For example, 3GPP TS 24.229 states that if the circuit-switched (CS) domain is available, the IVS should immediately attempt to re-initiate the eCall in the CS domain, or it should immediately attempt to re-initiate the eCall via another packet-switched (PS) radio access technology (RAT) or another public land mobile network (PLMN). However, 3GPP TS 24.229 currently does not specify the need to wait for a PSAP callback.

[0049] Therefore, CEN hopes that the 3GPP organization will consider the new requirements for emergency call procedures proposed by CEN and adjust the 3GPP specifications accordingly. However, the requirements stipulated in the 3GPP specifications need to be adopted by all countries deploying mobile systems, while the new requirements proposed by CEN will not be universally adopted globally. For example, in the event of an emergency call failure, some countries may require the terminal device to immediately select another access point or domain to retry the emergency call, or some countries may not require the terminal device to wait for a PSAP callback. Therefore, the new requirements proposed by CEN may only be adopted by CEN member countries, and other countries may not need to comply with them. Based on this, the modification of the 3GPP specifications needs to clearly state that the relevant adjustments only apply to the PLMNs of CEN member countries (and may later apply to CEN's allies or partners), and should not force all 3GPP member countries to comply with the requirements. In this way, if the 3GPP specifications are adjusted according to the requirements proposed by CEN, there will be a situation where the requirements for emergency call procedures are not entirely consistent across different countries. Therefore, how to determine whether the terminal device is in a CEN-related country or how to determine whether the terminal device should comply with CEN's new requirements for emergency calls are urgent problems that need to be solved.

[0050] To address the aforementioned issues, this application introduces first information in its embodiments. Referring to step S410 in Figure 4, this first information can be sent from a first device (such as a network device or server) to the terminal device. This first information can be used to determine (or indicate) one or more of the following: whether the terminal device is located in a CEN-associated country (or whether the terminal device is attached to, resides in, or is registered in a network of a CEN-associated country), and whether the terminal device is subject to the emergency call requirements corresponding to CEN for making an emergency call. If the terminal device determines that it is located in a CEN-associated country or is subject to the emergency call requirements corresponding to CEN for making an emergency call, when the terminal device initiates an emergency call, the emergency call procedure should be executed in accordance with the CEN requirements for emergency calls. The introduction of the aforementioned first information helps the terminal device clarify whether the CEN requirements for emergency calls apply, thereby improving the robustness of the communication process.

[0051] In some implementations, the first information is used to determine (or indicate) whether the terminal device is located in a CEN-associated country. The CEN-associated countries mentioned in the embodiments of this application may include CEN member states. Further, in some implementations, the CEN-associated countries may also include CEN's allied countries and / or partners. There are various ways for the first information to determine (or indicate) whether the terminal device is located in a CEN-associated country. For example, the first information may indicate whether the PLMN currently registered to the terminal device belongs to a PLMN of a CEN-associated country. As another example, the first information may indicate the mobile country code (MCC) of the CEN-associated country; for instance, the first information may include a list of MCCs for CEN-associated countries. The terminal device can compare the MCC in its currently registered PLMN with the MCC indicated by the first information. If the MCC in the currently registered PLMN belongs to the MCC indicated by the first information, then it can be determined that the terminal device is located in a CEN-associated country.

[0052] In some implementations, the first information can be used to indicate whether the emergency call requirement corresponding to CEN is applicable or not. For example, the first information can directly indicate "the emergency call requirement corresponding to CEN is applicable". As a more specific example, the first information can be 1 bit. If the value of this 1 bit is 1, it indicates that the emergency call requirement corresponding to CEN is applicable; if the value of this 1 bit is 0, it indicates that the emergency call requirement corresponding to CEN is not applicable.

[0053] The content of the first piece of information has been introduced above. The following section provides detailed examples illustrating how the first piece of information is carried.

[0054] In some implementations, the first information is carried in a wireless signal or wireless channel provided by the wireless system. For example, if the first device is an access network device, the first information is carried in a broadcast channel or system information transmitted by the access network device. Exemplarily, the access network device may broadcast the identifier of a CEN member country. This identifier may be carried in a bit field; or it may be man-machine readable text; or it may be other information that the mobile system or terminal device can understand or use.

[0055] In some implementations, the first information can be carried in IMS-level signaling. For example, the first information can be carried in SIP signaling (SIP signaling used by the 3GPP IMS system), such as in the SIP session description protocol (SDP). As a more concrete example, the SIP SDP can carry a list of MCCs for CEN-associated countries or a string such as "CEN requirements apply" or something similar. The first information can also be carried in SIP signaling as defined in 3GPP TS 24.229.

[0056] In some implementations, the first information can be carried in NAS signaling. This NAS signaling can be carried in one or more of the following: a registration acceptance message, a downlink NAS transport message, a service acceptance message, or other messages sent from the network to the terminal device as defined in Section 8 of 3GPP TS 24.501. In addition to the aforementioned NAS signaling, the first information can also be transmitted via NAS signaling defined in 3GPP TS 24.301 or 3GPP TS 24.008.

[0057] Furthermore, in some implementations, NAS signaling may include a network feature support information element (NFI), such as a 5GS NFI. This NFI can be used to indicate first information. For example, the NFI may include spare bits, which can be used to carry the first information. Taking the 5GS NFI as an example, the 6th byte of the 5GS NFI includes one or more spare bits, which can be used to carry the first information, either partially or entirely. As a specific example, the first information can be carried in the first bit (which can be any bit among the one or more spare bits, such as the 5th, 6th, 7th, or lower 8 bits of the 6th byte of the 5GS NFI) of the NFI. If the first bit is a first value (e.g., 1), it indicates that the CEN requirements for emergency calls apply; if the first bit is a second value (e.g., 0), it indicates that the CEN requirements for emergency calls do not apply. The following section, using 3GPP TS 24.501, provides a more specific example illustrating the indication method for the first information.

[0058] For example, the following modifications can be made to section 9.11.3.5 of 3GPP TS 24.501 (taking 3GPP TS 24.501 v18.7.0 as an example) (the underlined parts are new content):

[0059] 9.11.3.5 5GS network feature support

[0060] The purpose of the 5GS network feature support information element is to indicate whether certain features are supported by the network.

[0061] The 5GS network feature support information element is coded as shown in figure 9.11.3.5.1 and table 9.11.3.5.1.

[0062] The 5GS network feature support is a type 4 information element with a minimum length of 3 octets and a maximum length of 6 octets.

[0063] If:

[0064] -the length of 5GS network feature support contents field is set to one,then the UE shall interpret this as a receipt of an information element with all bits of octet 4,octet 5 and octet 6 coded as zero.

[0065] -the length of 5GS network feature support contents field is set to two,the UE shall interpret this as a receipt of an information element with all bits of octet 5 and octet 6 coded as zero.

[0066] -the length of 5GS network feature support contents field is set to three,the UE shall interpret this as a receipt of an information element with all bits of octet 6 coded as zero.

[0067] Table 9.11.3.5.1:5GS network feature support information element

[0068] In the example above, the 5GS network feature support information element has added "CEN eCall availability". This element can be used to indicate whether the CEN requirements for emergency calls apply. Table 9.11.3.5.1 explains "CEN eCall availability": if the bit corresponding to "CEN eCall availability" is 0, it means that the CEN requirements for emergency calls do not apply; if the bit corresponding to "CEN eCall availability" is 1, it means that the CEN requirements for emergency calls apply.

[0069] In some implementations, the initial information can be carried in the MO (the MO defined in the 3GPP specification). This MO can be an IMS MO (see 3GPP TS 24.167) or a NAS MO (see 3GPP TS 24.368).

[0070] In some implementations, the initial information can be provided to the terminal device by the Home PLMN (HPLMN) operator during activation (e.g., when activating the Universal Subscriber Identity Module (USIM). Alternatively, the initial information can be downloaded remotely after using the USIM.

[0071] In some implementations, the first information can be transmitted using a roaming-guided method. For example, see Appendix C of 3GPP TS 23.122 for the process of transmitting the first information using a roaming-guided method.

[0072] In some implementations, the first information can be transmitted based on the subscriber identity module (SIM) toolkit (STK) technology. For a specific implementation of this technology, please refer to 3GPP TS 31.115 (Secure Data Structures for (U)SIM Tool Applications).

[0073] In some implementations, the initial information can be carried within an application-layer message. Alternatively, the initial information can be transmitted via application-to-application signaling. As an example, this initial information can be transmitted using over-the-top technology.

[0074] The method embodiments of this application have been described in detail above with reference to Figures 1 to 4. The apparatus embodiments of this application will be described in detail below with reference to Figures 5 to 7. It should be understood that the descriptions of the method embodiments correspond to the descriptions of the apparatus embodiments; therefore, any parts not described in detail can be referred to the preceding method embodiments.

[0075] Figure 5 is a schematic diagram of the structure of a communication device provided in an embodiment of this application. The communication device 500 shown in Figure 5 can be the terminal device mentioned above. The communication device 500 includes a communication module 510. The communication module 510 is used to receive first information sent by a first device, the first information being used to determine one or more of the following: whether the terminal device is located in a country associated with CEN; whether the terminal device is subject to the emergency call requirements corresponding to CEN for making an emergency call.

[0076] In some implementations, the first information indicates the MCC of the country associated with the CEN.

[0077] In some implementations, the first information indicates whether or not the emergency call requirement corresponding to CEN applies.

[0078] In some implementations, the first information is carried in a wireless signal or wireless channel provided by the wireless system.

[0079] In some implementations, the first information is carried in a broadcast channel.

[0080] In some implementations, the first information is carried in MO.

[0081] In some implementations, the MO is an IMS MO or a NAS MO.

[0082] In some implementations, the first information is carried in SIP signaling.

[0083] In some implementations, the first information is carried in the SIP's SDP.

[0084] In some implementations, the first information is carried in NAS signaling.

[0085] In some implementations, the NAS signaling is carried as one or more of the following: a registration accept message; a downlink NAS transmission message; or a service accept message.

[0086] In some implementations, the first information is carried in the network feature support information element of the NAS signaling.

[0087] In some implementations, the first information is carried in the signaling of the application layer; or, the first information is transmitted based on the user identity module toolkit (STK) technology; or, the first information is transmitted based on the roaming guidance method.

[0088] In some implementations, the communication device 500 further includes a call module for making an emergency call based on the first information.

[0089] Figure 6 is a schematic diagram of the structure of a communication device provided in an embodiment of this application. The communication device 600 shown in Figure 6 can be the terminal device mentioned above. The communication device 600 includes a communication module 610. The communication module 610 is used to send first information to the terminal device, the first information being used to determine one or more of the following: whether the terminal device is located in a country associated with CEN; whether the terminal device is subject to the emergency call requirements corresponding to CEN for making an emergency call.

[0090] In some implementations, the first information indicates the MCC of the country associated with the CEN.

[0091] In some implementations, the first information indicates whether or not the emergency call requirement corresponding to CEN applies.

[0092] In some implementations, the first information is carried in a wireless signal or wireless channel provided by the wireless system.

[0093] In some implementations, the first information is carried in a broadcast channel.

[0094] In some implementations, the first information is carried in MO.

[0095] In some implementations, the MO is an IMS MO or a NAS MO.

[0096] In some implementations, the first information is carried in SIP signaling.

[0097] In some implementations, the first information is carried in the SIP's SDP.

[0098] In some implementations, the first information is carried in NAS signaling.

[0099] In some implementations, the NAS signaling is carried as one or more of the following: a registration accept message; a downlink NAS transmission message; or a service accept message.

[0100] In some implementations, the first information is carried in the network feature support information element of the NAS signaling.

[0101] In some implementations, the first information is carried in the signaling of the application layer; or, the first information is transmitted based on the user identity module toolkit (STK) technology; or, the first information is transmitted based on the roaming guidance method.

[0102] Figure 7 is a schematic structural diagram of a communication device applicable to embodiments of this application. The dashed lines in Figure 7 indicate that the unit or module is optional. This device 700 can be used to implement the methods described in the above method embodiments. Device 700 can be a chip, a terminal device, or a network device.

[0103] The apparatus 700 may include one or more processors 710. The processor 710 may support the apparatus 700 in implementing the methods described in the preceding method embodiments. The processor 710 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 may be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor.

[0104] The apparatus 700 may also include one or more memories 720. The memories 720 store a program that can be executed by the processor 710, causing the processor 710 to perform the methods described in the preceding method embodiments. The memories 720 may be independent of the processor 710 or integrated within the processor 710.

[0105] The device 700 may also include a transceiver 730. The processor 710 can communicate with other devices or chips via the transceiver 730. For example, the processor 710 can send and receive data with other devices or chips via the transceiver 730.

[0106] This application also provides a computer-readable storage medium for storing a program. This computer-readable storage medium can be applied to a terminal device or network device provided in this application, and the program causes a computer to execute the methods performed by the communication device in various embodiments of this application.

[0107] This application also provides a computer program product. The computer program product includes a program. This computer program product can be applied to a terminal device or network device provided in this application embodiment, and the program causes a computer to execute the methods performed by the communication device in various embodiments of this application.

[0108] This application also provides a computer program. This computer program can be applied to the terminal device or network device provided in this application, and the computer program causes the computer to execute the methods performed by the communication device in various embodiments of this application.

[0109] It should be understood that the terms "system" and "network" in this application can be used interchangeably. Furthermore, the terminology used in this application is only for explaining specific embodiments of the application and is not intended to limit the application. The terms "first," "second," "third," and "fourth," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. In addition, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0110] In the embodiments of this application, the term "instruction" can be a direct instruction, an indirect instruction, or an indication of a relationship. For example, A instructing B can mean that A directly instructs B, such as B being able to obtain information through A; it can also mean that A indirectly instructs B, such as A instructing C, so B can obtain information through C; or it can mean that there is a relationship between A and B.

[0111] In the embodiments of this application, "B corresponding to A" means that B is associated with A, and B can be determined based on A. However, it should also be understood that determining B based on A does not mean that B is determined solely based on A; B can also be determined based on A and / or other information.

[0112] In the embodiments of this application, the term "correspondence" can indicate a direct or indirect correspondence between two things, or an association between two things, or a relationship such as instruction and being instructed, configuration and being configured.

[0113] In this application embodiment, "predefined" or "preconfigured" can be implemented by pre-storing corresponding codes, tables, or other means that can be used to indicate relevant information in the device (e.g., including terminal devices and network devices). This application does not limit the specific implementation method. For example, predefined can refer to what is defined in the protocol.

[0114] In this application embodiment, the "protocol" may refer to a standard protocol in the field of communication, such as the LTE protocol, the NR protocol, and related protocols applied to future communication systems. This application does not limit this.

[0115] In the embodiments of this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0116] In the various embodiments of this application, the order of the above-mentioned processes does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0117] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0118] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0119] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0120] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially 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, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can read or a data storage device such as a server or data center that integrates 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, DVDs) or semiconductor media (e.g., solid-state disks, SSDs), etc.

[0121] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A communication method, characterized in that, include: The terminal device receives first information sent by the first device, the first information being used to determine one or more of the following: Whether the terminal device is located in a country associated with the European Committee for Standardization (CEN); Does the terminal device meet the emergency call requirements corresponding to CEN when making an emergency call? 2. The method according to claim 1, characterized in that, The first information indicates the Mobile Country Code (MCC) of the country associated with the CEN.

3. The method according to claim 1 or 2, characterized in that, The first information indicates whether the emergency call requirement corresponding to CEN is applicable or not.

4. The method according to any one of claims 1 to 3, characterized in that, The first information is carried in the wireless signal or wireless channel provided by the wireless system.

5. The method according to claim 4, characterized in that, The first information is carried in the broadcast channel.

6. The method according to any one of claims 1 to 3, characterized in that, The first information is carried in the management object MO.

7. The method according to claim 6, characterized in that, The MO is either the Internet Protocol Multimedia Subsystem (IMS) MO or the Non-Access Stratum (NAS) MO.

8. The method according to any one of claims 1 to 3, characterized in that, The first information is carried in the Session Initiation Protocol (SIP) signaling.

9. The method according to claim 8, characterized in that, The first information is carried in the SIP Session Description Protocol (SDP).

10. The method according to any one of claims 1 to 3, characterized in that, The first information is carried in the NAS signaling.

11. The method according to claim 10, characterized in that, The NAS signaling is carried in one or more of the following: Register to receive messages; Downlink NAS transmission messages; The service accepts messages.

12. The method according to claim 10 or 11, characterized in that, The first information is carried in the network feature support information element of the NAS signaling.

13. The method according to any one of claims 1 to 3, characterized in that: The first information is carried in the signaling of the application layer; or, The first information is transmitted based on the user identity module toolkit (STK) technology; or, The first information is transmitted based on a roaming guidance method.

14. The method according to any one of claims 1 to 13, characterized in that, The method further includes: The terminal device makes an emergency call based on the first information.

15. A communication method, characterized in that, include: The first device sends first information to the terminal device, the first information being used to determine one or more of the following: Whether the terminal device is located in a country associated with the European Committee for Standardization (CEN); Does the terminal device meet the emergency call requirements corresponding to CEN when making an emergency call? 16. The method according to claim 15, characterized in that, The first information indicates the Mobile Country Code (MCC) of the country associated with the CEN.

17. The method according to claim 15 or 16, characterized in that, The first information indicates whether the emergency call requirement corresponding to CEN is applicable or not.

18. The method according to any one of claims 15 to 17, characterized in that, The first information is carried in the wireless signal or wireless channel provided by the wireless system.

19. The method according to claim 18, characterized in that, The first information is carried in the broadcast channel.

20. The method according to any one of claims 15 to 17, characterized in that, The first information is carried in the management object MO.

21. The method according to claim 20, characterized in that, The MO is either the Internet Protocol Multimedia Subsystem (IMS) MO or the Non-Access Stratum (NAS) MO.

22. The method according to any one of claims 15 to 17, characterized in that, The first information is carried in the Session Initiation Protocol (SIP) signaling.

23. The method according to claim 22, characterized in that, The first information is carried in the SIP Session Description Protocol (SDP).

24. The method according to any one of claims 15 to 17, characterized in that, The first information is carried in the NAS signaling.

25. The method according to claim 24, characterized in that, The NAS signaling is carried in one or more of the following: Register to receive messages; Downlink NAS transmission messages; The service accepts messages.

26. The method according to claim 24 or 25, characterized in that, The first information is carried in the network feature support information element of the NAS signaling.

27. The method according to any one of claims 15 to 17, characterized in that: The first information is carried in the signaling of the application layer; or, The first information is transmitted based on the user identity module toolkit (STK) technology; or, The first information is transmitted based on a roaming guidance method.

28. A communication device, characterized in that, The communication device is a terminal device, and the communication device includes: A communication module is configured to receive first information sent by a first device, wherein the first information is used to determine one or more of the following: Whether the terminal device is located in a country associated with the European Committee for Standardization (CEN); Does the terminal device meet the emergency call requirements corresponding to CEN when making an emergency call? 29. The communication device according to claim 28, characterized in that, The first information indicates the Mobile Country Code (MCC) of the country associated with the CEN.

30. The communication device according to claim 28 or 29, characterized in that, The first information indicates whether the emergency call requirement corresponding to CEN is applicable or not.

31. The communication device according to any one of claims 28 to 30, characterized in that, The first information is carried in the wireless signal or wireless channel provided by the wireless system.

32. The communication device according to claim 31, characterized in that, The first information is carried in the broadcast channel.

33. The communication device according to any one of claims 28 to 30, characterized in that, The first information is carried in the management object MO.

34. The communication device according to claim 33, characterized in that, The MO is either the Internet Protocol Multimedia Subsystem (IMS) MO or the Non-Access Stratum (NAS) MO.

35. The communication device according to any one of claims 28 to 30, characterized in that, The first information is carried in the Session Initiation Protocol (SIP) signaling.

36. The communication device according to claim 35, characterized in that, The first information is carried in the SIP Session Description Protocol (SDP).

37. The communication device according to any one of claims 28 to 30, characterized in that, The first information is carried in the NAS signaling.

38. The communication device according to claim 37, characterized in that, The NAS signaling is carried in one or more of the following: Register to receive messages; Downlink NAS transmission messages; The service accepts messages.

39. The communication device according to claim 37 or 38, characterized in that, The first information is carried in the network feature support information element of the NAS signaling.

40. The communication device according to any one of claims 28 to 30, characterized in that: The first information is carried in the signaling of the application layer; or, The first information is transmitted based on the user identity module toolkit (STK) technology; or, The first information is transmitted based on a roaming guidance method.

41. The communication device according to any one of claims 28 to 40, characterized in that, The communication device also includes: The call module is used to make an emergency call based on the first information.

42. A communication device, characterized in that, The communication device is a first device, and the communication device includes: A communication module is configured to send first information to a terminal device, the first information being used to determine one or more of the following: Whether the terminal device is located in a country associated with the European Committee for Standardization (CEN); Does the terminal device meet the emergency call requirements corresponding to CEN when making an emergency call? 43. The communication device according to claim 42, characterized in that, The first information indicates the Mobile Country Code (MCC) of the country associated with the CEN.

44. The communication device according to claim 42 or 43, characterized in that, The first information indicates whether the emergency call requirement corresponding to CEN is applicable or not.

45. The communication device according to any one of claims 42 to 44, characterized in that, The first information is carried in the wireless signal or wireless channel provided by the wireless system.

46. ​​The communication device according to claim 45, characterized in that, The first information is carried in the broadcast channel.

47. The communication device according to any one of claims 42 to 44, characterized in that, The first information is carried in the management object MO.

48. The communication device according to claim 47, characterized in that, The MO is either the Internet Protocol Multimedia Subsystem (IMS) MO or the Non-Access Stratum (NAS) MO.

49. The communication device according to any one of claims 42 to 44, characterized in that, The first information is carried in the Session Initiation Protocol (SIP) signaling.

50. The communication device according to claim 49, characterized in that, The first information is carried in the SIP Session Description Protocol (SDP).

51. The communication device according to any one of claims 42 to 44, characterized in that, The first information is carried in the NAS signaling.

52. The communication device according to claim 51, characterized in that, The NAS signaling is carried in one or more of the following: Register to receive messages; Downlink NAS transmission messages; The service accepts messages.

53. The communication device according to claim 51 or 52, characterized in that, The first information is carried in the network feature support information element of the NAS signaling.

54. The communication device according to any one of claims 42 to 44, characterized in that: The first information is carried in the signaling of the application layer; or, The first information is transmitted based on the user identity module toolkit (STK) technology; or, The first information is transmitted based on a roaming guidance method.

55. A communication device, characterized in that, The device includes a transceiver, a memory, and a processor. The memory stores a program, and the processor invokes the program in the memory and controls the transceiver to receive or transmit signals so that the communication device performs the method as described in any one of claims 1 to 27.

56. An apparatus, characterized in that, Includes a processor for calling a program from memory to cause the apparatus to perform the method as described in any one of claims 1 to 27.

57. A chip, characterized in that, Includes a processor for calling a program from memory, causing a device on which the chip is mounted to perform the method as described in any one of claims 1 to 27.

58. A computer-readable storage medium, characterized in that, It contains a program that causes a computer to perform the method as described in any one of claims 1 to 27.

59. A computer program product, characterized in that, Includes a program that causes a computer to perform the method as described in any one of claims 1 to 27.

60. A computer program, characterized in that, The computer program causes the computer to perform the method as described in any one of claims 1 to 27.

Images