Communication method, communication node, communication system and storage medium

Abstract

The embodiment of the invention provides an information indication method, a terminal, a communication node, a communication system and a storage medium. The method is executed by a first communication node and comprises the following steps: transmitting data between the first communication node and a second communication node through a first interface; wherein the first interface is used for transmitting data of an internet protocol multimedia subsystem (IMS) short message service (SMS). According to the technical scheme provided by the embodiment of the invention, network resources can be saved.

Description

Communication method, communication node, communication system and storage medium Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to an information indication method, a communication node, a communication system, and a storage medium. Background Art

[0002] In the field of communications technology, in scenarios where the above-mentioned architecture is used to implement the Interconnection Protocol Multimedia Subsystem (IMS) Short Message Service (SMS) service, a terminal needs to register with the core network and establish a Packet Data Unit (PDU) session before registering and using the IMS SMS service. This results in unnecessary consumption of some network resources, such as PDU session resources.

[0003] Summary of the Invention

[0004] In communication technology, it is necessary to consider reducing the network resource consumption of IMS SMS services.

[0005] Embodiments of the present disclosure provide a communication method, a communication node, a communication system, and a storage medium.

[0006] According to a first aspect of an embodiment of the present disclosure, a communication method is provided, applied to a first communication node, the method comprising:

[0007] transmitting data between the first communication node and the second communication node via a first interface;

[0008] The first interface is used to transmit data of the Internet Protocol Multimedia Subsystem IMS Short Message Service (SMS) service.

[0009] According to a second aspect of an embodiment of the present disclosure, a communication method is provided, applied to a second communication node, the method comprising:

[0010] transmitting data between the first communication node and the second communication node via a first interface;

[0011] The first interface is used to transmit data of the Internet Protocol Multimedia Subsystem IMS Short Message Service (SMS) service.

[0012] According to a third aspect of an embodiment of the present disclosure, a communication method is provided. The method is performed by a core network device, the core network device including a first communication node and a second communication node. The method includes:

[0013] The first communication node transmits data to the second communication node through the first interface;

[0014] The first interface is used to transmit data of the Internet Protocol Multimedia Subsystem IMS Short Message Service (SMS) service.

[0015] According to a fourth aspect of an embodiment of the present disclosure, a first communication node is provided, wherein the first communication node includes:

[0016] a processing module, configured to transmit data between the first communication node and the second communication node through a first interface;

[0017] The first interface is used to transmit data of the Internet Protocol Multimedia Subsystem IMS Short Message Service (SMS) service.

[0018] According to a fifth aspect of an embodiment of the present disclosure, a second communication node is provided, wherein the second communication node includes:

[0019] a processing module, configured to transmit data between the first communication node and the second communication node through a first interface;

[0020] The first interface is used to transmit data of the Internet Protocol Multimedia Subsystem IMS Short Message Service (SMS) service.

[0021] According to the sixth aspect of an embodiment of the present disclosure, a communication system is provided, which includes a first communication node and a second communication node, the first communication node is configured to implement the information indication method provided by the first aspect, and the second communication node is configured to implement the information indication method provided by the second aspect.

[0022] According to a seventh aspect of an embodiment of the present disclosure, a first communication node is provided, the first communication node including:

[0023] one or more processors;

[0024] The first communication node is used to execute the information indication method described in the first aspect.

[0025] According to an eighth aspect of an embodiment of the present disclosure, a second communication node is provided, the second communication node including:

[0026] one or more processors;

[0027] The second communication node is used to execute the information indication method described in the second aspect.

[0028] According to the ninth aspect of an embodiment of the present disclosure, a storage medium is provided, wherein the storage medium stores instructions, and when the instructions are executed on a communication device, the communication device executes the information indication method provided by the first aspect, the second aspect or the third aspect.

[0029] The technical solution provided by the embodiments of the present disclosure can reduce the network resource consumption of the IMS short message service.

[0030] It should be understood that the foregoing general description and the following detailed description are merely exemplary and explanatory and are not restrictive of the embodiments of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the embodiments of the present invention.

[0032] FIG1a is a schematic diagram showing an architecture of a communication system according to an exemplary embodiment;

[0033] FIG1b is a schematic diagram showing a time unit according to an exemplary embodiment;

[0034] FIG1c is a schematic diagram showing a channel scheduling according to an exemplary embodiment;

[0035] FIG2a is a schematic flow chart showing an information indication method according to an exemplary embodiment;

[0036] FIG2 b is a schematic flow chart showing an information indication method according to an exemplary embodiment;

[0037] FIG3a is a schematic flow chart showing an information indication method according to an exemplary embodiment;

[0038] FIG3 b is a schematic flow chart showing an information indication method according to an exemplary embodiment;

[0039] FIG4a is a schematic flow chart showing an information indication method according to an exemplary embodiment;

[0040] FIG4 b is a schematic flow chart showing an information indication method according to an exemplary embodiment;

[0041] FIG5a is a schematic flow chart showing an information indication method according to an exemplary embodiment;

[0042] FIG6a is a schematic flow chart showing an information indication method according to an exemplary embodiment;

[0043] FIG6 b is a schematic flow chart showing an information indication method according to an exemplary embodiment;

[0044] FIG6c is a schematic flow chart showing an information indication method according to an exemplary embodiment;

[0045] FIG7a is a schematic structural diagram of a first communication node according to an exemplary embodiment;

[0046] FIG7b is a schematic structural diagram of a second communication node according to an exemplary embodiment;

[0047] FIG8a is a schematic structural diagram of a UE according to an exemplary embodiment;

[0048] Fig. 8b is a schematic structural diagram of a communication device according to an exemplary embodiment. DETAILED DESCRIPTION

[0049] Embodiments of the present disclosure provide an information indication method, a communication node, a communication system, and a storage medium.

[0050] In a first aspect, an embodiment of the present disclosure provides a communication method, performed by a first communication node, the method including:

[0051] transmitting data between the first communication node and the second communication node via a first interface;

[0052] The first interface is used to transmit data of the Internet Protocol Multimedia Subsystem IMS Short Message Service (SMS) service.

[0053] In the above embodiment, since the data of the IMS SMS service between the first communication node and the second communication node can be directly transmitted through the first interface, compared with the method in which the data of the IMS SMS service can be transmitted between the first communication node and the second communication node only after establishing a PDU session, PDU session resources can be saved.

[0054] In combination with some embodiments of the first aspect, in some embodiments, the first communication node is an access and mobility management function AMF, and the second communication node is a proxy call session control function P-CSCF.

[0055] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0056] Receive IMS SMS short messages sent by the terminal;

[0057] The transmitting of data between the first communication node and the second communication node through the first interface includes:

[0058] The IMS SMS short message is sent to the second communication node through the first interface.

[0059] In the above embodiment, an IMS SMS short message sent by a terminal can be received, and the IMS SMS short message can be directly sent to the second communication node using the first interface. Compared with the method in which a PDU session needs to be established before the short message of the IMS SMS service can be transmitted between the first communication node and the second communication node, PDU session resources can be saved.

[0060] In conjunction with some embodiments of the first aspect, in some embodiments, transmitting data between the first communication node and the second communication node through the first interface includes:

[0061] receiving, through the first interface, a first response message sent by the second communication node; wherein the first response message indicates whether the third communication node has received the IMS SMS short message;

[0062] Sending the first response message to the terminal.

[0063] In the above embodiment, the first response message sent by the second communication node can be directly received by using the first interface. Compared with the method in which a PDU session needs to be established before the first response message can be transmitted between the first communication node and the second communication node, PDU session resources can be saved. The terminal can receive the first response message and obtain the reception result of the IMS SMS short message.

[0064] In conjunction with some embodiments of the first aspect, in some embodiments, transmitting data between the first communication node and the second communication node through the first interface includes:

[0065] receiving, through the first interface, a submission report sent by the second communication node;

[0066] The submission report is sent to the terminal.

[0067] In the above embodiment, the first communication node can receive the submission report sent by the second communication node through the first interface. Compared with the method in which a PDU session needs to be established before the submission report can be transmitted between the first communication node and the second communication node, PDU session resources can be saved; its terminal can obtain the submission report.

[0068] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0069] receiving a second response message sent by the terminal;

[0070] The second response message indicates whether the terminal has received the submission report.

[0071] In the above embodiment, the first communication node may determine whether the terminal has received the submission report based on the second response message.

[0072] In combination with some embodiments of the first aspect, in some embodiments, the first communication node is a Short Message Service Function SMSF, and the second communication node is a Proxy Call Session Control Function P-CSCF.

[0073] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0074] Receive IMS SMS short messages sent by the terminal through AMF;

[0075] The transmitting of data between the first communication node and the second communication node through the first interface includes:

[0076] The IMS SMS short message is sent to the second communication node through the first interface.

[0077] In the above embodiment, the first communication node can obtain the IMS SMS short message, and the first communication node can send the IMS SMS short message to the second communication node through the first interface. Compared with the method in which a PDU session needs to be established before data of the IMS SMS service can be transmitted between the first communication node and the second communication node, PDU session resources can be saved.

[0078] In conjunction with some embodiments of the first aspect, in some embodiments, transmitting data between the first communication node and the second communication node through the first interface includes:

[0079] receiving, through the first interface, a first response message sent by the second communication node; wherein the first response message indicates whether the third communication node has received the IMS SMS short message;

[0080] Send the first response message to the terminal through AMF.

[0081] In the above embodiment, the first communication node can receive the first response message sent by the second communication node through the first interface. Compared with the method in which a PDU session needs to be established before the first response message can be received, PDU session resources can be saved; and the terminal can determine whether the third communication node has received the IMS SMS short message based on the first response message.

[0082] In conjunction with some embodiments of the first aspect, in some embodiments, transmitting data between the first communication node and the second communication node through the first interface includes:

[0083] receiving, through the first interface, a submission report sent by the second communication node;

[0084] The submission report is sent to the terminal through AMF.

[0085] In the above embodiment, the first communication node can directly receive the submission report sent by the second communication node through the first interface. Compared with the method of requiring a PDU session to be established before receiving the submission report, PDU session resources can be saved; and the terminal can obtain the submission report.

[0086] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0087] receiving a second response message sent by the terminal through the AMF;

[0088] The second response message indicates whether the terminal has received the submission report.

[0089] In the above embodiment, the first communication node may determine whether the terminal has received the submission report based on the second response message.

[0090] In conjunction with some embodiments of the first aspect, in some embodiments, transmitting data between the first communication node and the second communication node through the first interface includes:

[0091] The second response message is sent to the second communication node through the first interface.

[0092] In the above embodiment, the first communication node can directly send the second response message to the second communication node through the first interface. Compared with the method of sending the second response message only after establishing a PDU session, PDU session resources can be saved.

[0093] In combination with some embodiments of the first aspect, in some embodiments, the TMS SMS short message and / or the second response message are included in a container of an uplink UL non-access stratum NAS transmission message.

[0094] In the above embodiment, the TMS SMS short message and / or the second response message may be sent via a container of a UL NAS transport message.

[0095] In combination with some embodiments of the first aspect, in some embodiments, the first response message and / or the submission report is included in a container of a downlink (DL) non-access stratum (NAS) transmission message.

[0096] In the above embodiment, the first response message and / or the submission report may be received via a container of a UL NAS transmission message.

[0097] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0098] Receiving a NAS registration request message sent by the terminal;

[0099] The NAS registration request message indicates that the terminal supports NAS-based IMS SMS.

[0100] In the above embodiment, the first communication node may determine, based on the NAS registration request message, that the terminal supports NAS-based IMS SMS.

[0101] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0102] Sending a NAS registration acceptance message to the terminal;

[0103] The NAS registration accept message indicates that the network supports NAS-based IMS SMS.

[0104] In the above embodiment, the first communication node may determine that the network supports NAS-based IMS SMS based on the NAS registration accept message.

[0105] In the above embodiment, in a second aspect, the present disclosure provides a communication method, applied to a second communication node, the method comprising:

[0106] transmitting data between the first communication node and the second communication node via a first interface;

[0107] The first interface is used to transmit data of the Internet Protocol Multimedia Subsystem IMS Short Message Service (SMS) service.

[0108] In combination with some embodiments of the second aspect, in some embodiments, the first communication node is an AMF, and the second communication node is a P-CSCF; or, the first communication node is an SMSF, and the second communication node is a P-CSCF.

[0109] In conjunction with some embodiments of the second aspect, in some embodiments, transmitting data between the first communication node and the second communication node through the first interface includes:

[0110] receiving the IMS SMS short message sent by the first communication node through the first interface;

[0111] The IMS SMS short message is sent to the third communication node.

[0112] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0113] Receiving a first response message sent by a third communication node; wherein the first response message indicates whether the third communication node has received the IMS SMS short message;

[0114] The transmitting of data between the first communication node and the second communication node through the first interface includes:

[0115] The first response message is sent to the second communication node through the first interface.

[0116] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0117] Receiving a submission report sent by a third communication node; transmitting data between the first communication node and the second communication node through the first interface, including:

[0118] The submission report is sent to the first communication node through the first interface.

[0119] In conjunction with some embodiments of the second aspect, in some embodiments, transmitting data between the first communication node and the second communication node through the first interface includes:

[0120] Receive a second response message sent by the first communication node through the first interface; wherein the second response message indicates whether the terminal has received the submission report

[0121] The second response message is sent to the third communication node.

[0122] In combination with some embodiments of the second aspect, in some embodiments, the third communication node is an S-CSCF.

[0123] In combination with some embodiments of the second aspect, in some embodiments, the TMS SMS short message and / or the second response message are included in a container of an uplink UL non-access stratum NAS transmission message.

[0124] In combination with some embodiments of the second aspect, in some embodiments, the first message and / or the submission report is included in a container of a downlink DL non-access stratum NAS transmission message.

[0125] In a third aspect, an embodiment of the present disclosure provides a communication method, the method being performed by a core network device, the core network device including a first communication node and a second communication node, the method including:

[0126] The first communication node transmits data to the second communication node through the first interface;

[0127] In a fourth aspect, an embodiment of the present disclosure provides a first communication node, the first communication node comprising:

[0128] a processing module, configured to transmit data between the first communication node and the second communication node through a first interface;

[0129] The first interface is used to transmit data of the Internet Protocol Multimedia Subsystem IMS Short Message Service (SMS) service.

[0130] In a fifth aspect, an embodiment of the present disclosure provides a second communication node, the second communication node including:

[0131] a processing module, configured to transmit data between the first communication node and the second communication node through a first interface;

[0132] The first interface is used to transmit data of the Internet Protocol Multimedia Subsystem IMS Short Message Service (SMS) service.

[0133] In the sixth aspect, an embodiment of the present disclosure provides an information indication system, wherein the communication system includes a first communication node and a first communication node, the first communication node is configured to implement the communication method described in the optional implementation manner of the first aspect, and the second communication node is configured to implement the communication method described in the optional implementation manner of the second aspect.

[0134] In a seventh aspect, an embodiment of the present disclosure provides a first communication node, the first communication node including:

[0135] one or more processors;

[0136] The terminal is used to execute the communication method provided by the first aspect.

[0137] In an eighth aspect, an embodiment of the present disclosure provides a second communication node, the second communication node including:

[0138] one or more processors;

[0139] Among them, the second communication node is used to execute the information indication method provided by the second aspect.

[0140] In a ninth aspect, an embodiment of the present disclosure provides a storage medium, wherein the storage medium stores instructions, which, when executed on a communication device, enable the communication device to execute the information indication method described in the optional implementation of the first and second aspects.

[0141] In a tenth aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes the method described in the optional implementation of the first and second aspects.

[0142] In an eleventh aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the optional implementation of the first and second aspects.

[0143] In a twelfth aspect, an embodiment of the present disclosure provides a chip or a chip system, wherein the chip or chip system includes a processing circuit configured to execute the method described in the optional implementation of the first and second aspects above.

[0144] It is understandable that the above-mentioned communication nodes, communication systems, storage media, program products, computer programs, chips, or chip systems are all used to perform the methods proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0145] The embodiments of the present disclosure provide an information indication method, a communication node, a communication system, and a storage medium. In some embodiments, the terms information indication method, information processing method, information transmission method, etc. are interchangeable, and the terms communication system, information processing system, etc. are interchangeable.

[0146] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0147] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0148] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0149] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0150] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0151] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0152] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0153] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0154] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0155] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0156] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0157] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0158] In some embodiments, devices and equipment can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they can also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc.

[0159] In some embodiments, "network" can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.

[0160] In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)", "base station (BS)", "radio base station", "fixed station", and in some embodiments may also be understood as "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission and / or reception point (TRP)" "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)", etc.

[0161] In some embodiments, "terminal" or "terminal device" may be referred to as "user equipment (UE)", "user terminal" "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc.

[0162] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0163] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0164] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0165] FIG1a is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0166] As shown in FIG1a , a communication system 100 includes a first communication node 101 and a second communication node 102. The communication nodes may be network functions. The network functions include at least one of the following:

[0167] AMF: Access and Mobility Management Function;

[0168] SMSF: Short Message Service Function (SMSF);

[0169] UPF: User Plane Function;

[0170] P-CSCF: Proxy Call Session Control Function;

[0171] S-CSCF: Serving Call Session Control Function;

[0172] HSS: Home subscriber server.

[0173] IP-SM-GW: IP Short Message Gateway (IP-SM-GW, IP-Short-Message-Gateway)

[0174] In some embodiments, the terminal includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0175] In some embodiments, the access network device may be, for example, a node or device that accesses a terminal to a wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a Wi-Fi system, but is not limited thereto.

[0176] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0177] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0178] In some embodiments, a core network device may be a device including one or more network elements, or may be multiple devices or device groups, each including all or part of the one or more network elements. The network element may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

[0179] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution provided by the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present disclosure is also applicable to similar technical problems.

[0180] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1a, or a portion thereof, but are not limited thereto. The entities shown in FIG1a are illustrative only. The communication system may include all or a portion of the entities shown in FIG1a, or may include other entities other than those shown in FIG1a. The number and form of the entities may be arbitrary. The connection relationship between the entities is illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0181] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0182] In some embodiments, the Internet Protocol (IP) multimedia core network subsystem includes all core network elements used to provide multimedia services. This includes a collection of signaling and media-related network elements. The IP multimedia services are based on session control capabilities defined by the Internet Engineering Task Force (IETF), which, along with multimedia transport capabilities, utilize the IP to connect access networks.

[0183] In some embodiments, to achieve access independence and maintain smooth interoperability with wired terminals on the Internet, the IP Multimedia Subsystem attempts to conform to IETF "Internet standards." Therefore, when IETF protocols are selected, the specified interfaces are as consistent as possible with IETF "Internet standards," such as Session Initialization Protocol (SIP) and Real-time Transport Protocol (RTP).

[0184] In some embodiments, the IP Multimedia Core Network subsystem enables operators to provide multimedia services to users. The IP Multimedia Core Network subsystem enables wireless and wireline users to converge and access voice, video, messaging, data, and web-based technologies.

[0185] In some embodiments, the IP-SM-GW (IP-Short-Message-Gateway) provides protocol interworking for delivering short messages between IP-based UEs and Short Message Service Centers (SMS-SCs), routing messages to the SMS-SC for delivery to SMS-based users or receiving messages from the SMS-SC of an SMS-based UE for delivery to an IP-based UE.

[0186] In some embodiments, see Figure 1b, which illustrates an enhanced interconnection protocol multimedia subsystem (IMS) short message service (SMS) service architecture without a short message service function (SMSF) device. See Figure 1c, which illustrates an enhanced IMS SMS service architecture using SMSF. In a scenario where the IMS SMS service is implemented using the above architecture, the terminal needs to register with the core network and establish a packet data unit (PDU) session before registering and using the IMS SMS service, which results in unnecessary consumption of some network resources, such as PDU session resources. Therefore, how to reduce the network resource consumption of the IMS SMS service is an issue that needs to be considered.

[0187] FIG2a is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG2a, the embodiment of the present disclosure relates to a communication method for use in a communication system 100 (exemplarily, a system corresponding to the service architecture shown in FIG1b), the method comprising:

[0188] Step S2101: The terminal sends a message to the first communication node.

[0189] In some embodiments, the first communication node receives a message sent by the terminal.

[0190] In some embodiments, the first communication node is an Access and Mobility Management Function (AMF).

[0191] In some embodiments, the terminal sends an IMS SMS short message to the first communication node, and the IMS SMS short message can be forwarded to a target communication node (eg, the second communication node) via the first communication node.

[0192] In some embodiments, the terminal may send an IMS SMS short message to the first communication node based on the Session Initialization Protocol (SIP).

[0193] In some embodiments, the IMS SMS short message carries SMS-SUBMIT information and / or a service center (SC) address.

[0194] In some embodiments, the TMS SMS message is contained in an uplink (UL) non-access stratum (NAS) transmission message container. This allows the TMS SMS message to be transmitted using the existing UL NAS transmission message container, improving transmission resource utilization.

[0195] In some embodiments, the TMS SMS short message may be forwarded by the first communication node to the second communication node.

[0196] In some embodiments, after receiving the submission report, the terminal sends a second response message to the first communication node, wherein the second response message indicates whether the terminal has received the submission report. In this way, after receiving the second response message, the first communication node can know whether the terminal has received the submission report.

[0197] In some embodiments, the first communication node receives a NAS registration request message sent by the terminal.

[0198] In some embodiments, the NAS registration request message indicates that the terminal supports NAS-based IMS SMS. Thus, after receiving the NAS registration request message, the first communication node can determine based on the NAS registration request message that the terminal supports NAS-based IMS SMS, and thus can perform NAS-based IMS SMS transmission.

[0199] Step S2102: The first communication node and the second communication node transmit data through the first interface.

[0200] In some embodiments, a first communication node transmits data between the first communication node and the second communication node via a first interface. In this manner, since data can be directly transmitted between the first communication node and the second communication node via the first interface, PDU session resources can be saved compared to a method in which a PDU session must be established before data can be transmitted between the first communication node and the second communication node.

[0201] In some embodiments, the first communication node sends data to the second communication node through the first interface.

[0202] In some embodiments, the first communication node receives data sent by the second communication node through the first interface.

[0203] In some embodiments, the second communication node transmits data between the first communication node and the second communication node through the first interface.

[0204] In some embodiments, the second communication node sends data to the first communication node through the first interface.

[0205] In some embodiments, the second communication node receives data sent by the first communication node through the first interface.

[0206] In some embodiments, the second communication node is a Proxy Call Session Control Function (P-CSCF).

[0207] In some embodiments, the first interface is a data transmission interface established between the first communication node and the second communication node.

[0208] In some embodiments, the first interface is used to transmit data for an Internet Protocol Multimedia Subsystem (IMS) Short Message Service (SMS) service. Thus, because data for the IMS SMS service can be directly transmitted between the first communication node and the second communication node via the first interface, PDU session resources can be conserved compared to a method in which a PDU session must be established before data for the IMS SMS service can be transmitted between the first communication node and the second communication node.

[0209] In some embodiments, the first communication node receives an IMS SMS short message sent by the terminal.

[0210] In some embodiments, the first communication node may receive an IMS SMS short message sent by the terminal based on a Session Initialization Protocol (SIP).

[0211] In some embodiments, the TMS SMS message is contained in an uplink (UL) non-access stratum (NAS) transmission message container. This allows the TMS SMS message to be transmitted using the existing UL NAS transmission message container, improving transmission resource utilization.

[0212] In some embodiments, after receiving the IMS SMS message, the first communication node may send the IMS SMS message to the second communication node via the first interface. In this manner, since the IMS SMS message can be directly transmitted between the first communication node and the second communication node via the first interface, PDU session resources may be conserved compared to a method in which a PDU session must be established before the IMS SMS message can be transmitted between the first communication node and the second communication node.

[0213] In some embodiments, after receiving the IMS SMS short message, the second communication node sends the IMS SMS short message to a Serving Call Session Control Function (S-CSCF).

[0214] In some embodiments, a first communication node receives a first response message sent by a second communication node via a first interface, wherein the first response message indicates whether the third communication node has received the IMS SMS short message. In this manner, since the first response message can be directly transmitted between the first communication node and the second communication node via the first interface, PDU session resources can be conserved compared to a method in which a PDU session must be established before the first response message can be transmitted between the first communication node and the second communication node. Furthermore, after receiving the first response message, the first communication node can determine whether the third communication node has received the IMS SMS short message.

[0215] In some embodiments, after receiving the first response message, the first communication node sends the first response message to the terminal.

[0216] In some embodiments, the first response message may be a SIP confirm message.

[0217] In some embodiments, the first response message may be sent from the third communication node to the second communication node.

[0218] In some embodiments, the third communication node may be an S-CSCF.

[0219] In some embodiments, the first response message is included in a container of a downlink (DL) non-access NAS transmission message. In this way, the first response message can be transmitted through the existing DL NAS transmission message container, thereby improving the utilization of transmission resources.

[0220] In some embodiments, a first communication node receives a submit report sent by a second communication node via a first interface. In this manner, since the submit report between the first communication node and the second communication node can be directly transmitted via the first interface, compared to a method in which a PDU session must be established before the submit report can be transmitted between the first communication node and the second communication node, PDU session resources can be saved.

[0221] In some embodiments, the submission report is sent by the third communication node to the second communication node.

[0222] In some embodiments, the submission report is included in a container of a downlink (DL) non-access (NAS) transmission message. In this way, the submission report can be transmitted through the existing container of the DL NAS transmission message, thereby improving the utilization of transmission resources.

[0223] In some embodiments, the first communications node sends a submission report to the terminal.

[0224] In some embodiments, the first communication node receives a second response message sent by the terminal.

[0225] In some embodiments, the first communication node receives a second response message sent by the terminal through the AMF.

[0226] In some embodiments, the second response message indicates whether the terminal has received the submission report. Thus, after receiving the second response message, the first communication node can determine whether the submission report has been received.

[0227] In some embodiments, the first communication node sends a second response message to the second communication node through the first interface.

[0228] In some embodiments, the second response message is included in a container of an uplink (UL) non-access (NAS) transmission message. In this way, the second response message can be transmitted using the existing container of the UL NAS transmission message, thereby improving the utilization of transmission resources.

[0229] Step S2103: The first communication node sends a message to the terminal.

[0230] In some embodiments, the terminal receives a message sent by the first communication node.

[0231] In some embodiments, the first communication node sends a first response message to the terminal, wherein the first response message indicates whether the third communication node has received the IMS SMS short message. Thus, after receiving the first response message, the terminal can determine whether the third communication node has received the IMS SMS short message.

[0232] In some embodiments, the first communications node sends a submission report to the terminal.

[0233] In some embodiments, the first communications node sends a NAS registration accept message to the terminal.

[0234] In some embodiments, the NAS registration accept message indicates that the network supports IMS SMS over NAS. In this way, the terminal can perform transmission based on IMS SMS over NAS.

[0235] In some embodiments, a first interface is added between the first communication node and the second communication node, and the first interface is used to transmit IMS SMS service data between the first communication node and the second communication node. Here, the first communication node is an AMF and the second communication node is a P-CSCF; alternatively, the first communication node is an SMSF and the second communication node is a P-CSCF.

[0236] In some embodiments, the term "information" can be interchangeable with terms such as "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "field", and "data".

[0237] In some embodiments, the term "send" can be interchanged with terms such as "transmit", "report", and "transmit".

[0238] The information indication method involved in the embodiments of the present disclosure may include at least one of steps S2101 to S2103. For example, step S2101 can be implemented as an independent embodiment, step S2102 can be implemented as an independent embodiment, and step S2103 can be implemented as an independent embodiment. For example, step S2101 combined with step S2103 can be implemented as an independent embodiment, and step S2102 combined with step S2103 can be implemented as an independent embodiment, but the present invention is not limited thereto.

[0239] FIG2b is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG2a , the present disclosure embodiment relates to a communication method for use in a communication system 100 (exemplarily, a system corresponding to the service architecture shown in FIG1c ), the method comprising:

[0240] Step S2201: The terminal sends a message to the first communication node.

[0241] In some embodiments, the first communication node receives a message sent by the terminal.

[0242] In some embodiments, the first communication node is an SMSF. In some embodiments, the terminal sends an IMS SMS short message to the first communication node.

[0243] In some embodiments, the first communication node receives an IMS SMS short message sent by the terminal through the AMF. In this way, the IMS SMS short message can be forwarded to the target communication node (e.g., the second communication node) through the first communication node.

[0244] In some embodiments, the terminal may send an IMS SMS short message to the first communication node based on the Session Initialization Protocol (SIP).

[0245] In some embodiments, the IMS SMS short message carries SMS-SUBMIT information and / or a service center (SC) address.

[0246] In some embodiments, the TMS SMS message is contained in an uplink (UL) non-access stratum (NAS) transmission message container. This allows the TMS SMS message to be transmitted using the existing UL NAS transmission message container, improving transmission resource utilization.

[0247] In some embodiments, the TMS SMS short message may be forwarded by the first communication node to the second communication node.

[0248] In some embodiments, after receiving the submission report, the terminal sends a second response message to the first communication node, wherein the second response message indicates whether the terminal has received the submission report. In this way, after receiving the second response message, the first communication node can know whether the terminal has received the submission report.

[0249] In some embodiments, the first communication node receives a NAS registration request message sent by the terminal through the AMF.

[0250] In some embodiments, the NAS registration request message indicates that the terminal supports NAS-based IMS SMS. Thus, after receiving the NAS registration request message, the first communication node can determine based on the NAS registration request message that the terminal supports NAS-based IMS SMS, and thus can perform NAS-based IMS SMS transmission.

[0251] Step S2202: The first communication node and the second communication node transmit data through the first interface.

[0252] In some embodiments, a first communication node transmits data between the first communication node and a second communication node via a first interface. This allows data to be directly transmitted between the first communication node and the second communication node via the first interface, thereby conserving PDU session resources compared to a method requiring a PDU session to be established before data can be transmitted between the first communication node and the second communication node. In some embodiments, the first communication node sends data to the second communication node via the first interface.

[0253] In some embodiments, the first communication node receives data sent by the second communication node through the first interface.

[0254] In some embodiments, the second communication node transmits data between the first communication node and the second communication node through the first interface.

[0255] In some embodiments, the second communication node sends data to the first communication node through the first interface.

[0256] In some embodiments, the second communication node receives data sent by the first communication node through the first interface.

[0257] In some embodiments, the second communication node is a Proxy Call Session Control Function (P-CSCF).

[0258] In some embodiments, the first interface is a data transmission interface established between the first communication node and the second communication node.

[0259] In some embodiments, the first interface is used to transmit data for an Internet Protocol Multimedia Subsystem (IMS) Short Message Service (SMS) service. Thus, because data for the IMS SMS service can be directly transmitted between the first communication node and the second communication node via the first interface, PDU session resources can be conserved compared to a method in which a PDU session must be established before data for the IMS SMS service can be transmitted between the first communication node and the second communication node.

[0260] In some embodiments, the first communication node receives an IMS SMS short message sent by the terminal.

[0261] In some embodiments, the first communication node receives an IMS SMS short message sent by the terminal through the AMF.

[0262] In some embodiments, the first communication node may receive an IMS SMS short message sent by the terminal based on a Session Initialization Protocol (SIP).

[0263] In some embodiments, the TMS SMS message is contained in an uplink (UL) non-access stratum (NAS) transmission message container. This allows the TMS SMS message to be transmitted using the existing UL NAS transmission message container, improving transmission resource utilization.

[0264] In some embodiments, after receiving the IMS SMS message, the first communication node may send the IMS SMS message to the second communication node via the first interface. In this manner, since the IMS SMS message can be directly transmitted between the first communication node and the second communication node via the first interface, PDU session resources may be conserved compared to a method in which a PDU session must be established before the IMS SMS message can be transmitted between the first communication node and the second communication node.

[0265] In some embodiments, after receiving the IMS SMS short message, the second communication node sends the IMS SMS short message to a Serving Call Session Control Function (S-CSCF).

[0266] In some embodiments, a first communication node receives a first response message sent by a second communication node via a first interface, wherein the first response message indicates whether the third communication node has received the IMS SMS short message. In this manner, since the first response message can be directly transmitted between the first communication node and the second communication node via the first interface, PDU session resources can be conserved compared to a method in which a PDU session must be established before the first response message can be transmitted between the first communication node and the second communication node. Furthermore, after receiving the first response message, the first communication node can determine whether the third communication node has received the IMS SMS short message.

[0267] In some embodiments, after receiving the first response message, the first communication node sends the first response message to the terminal.

[0268] In some embodiments, the first response message may be a SIP confirm message.

[0269] In some embodiments, the first response message may be sent from the third communication node to the second communication node.

[0270] In some embodiments, the third communication node may be an S-CSCF.

[0271] In some embodiments, the first response message is included in a container of a downlink (DL) non-access NAS transmission message. In this way, the first response message can be transmitted through the existing DL NAS transmission message container, thereby improving the utilization of transmission resources.

[0272] In some embodiments, a first communication node receives a submit report sent by a second communication node via a first interface. In this manner, since the submit report between the first communication node and the second communication node can be directly transmitted via the first interface, compared to a method in which a PDU session must be established before the submit report can be transmitted between the first communication node and the second communication node, PDU session resources can be saved.

[0273] In some embodiments, the submission report is sent by the third communication node to the second communication node.

[0274] In some embodiments, the submission report is included in a container of a downlink (DL) non-access (NAS) transmission message. In this way, the submission report can be transmitted through the existing container of the DL NAS transmission message, thereby improving the utilization of transmission resources.

[0275] In some embodiments, the first communication node sends a submission report to the terminal via the AMF.

[0276] In some embodiments, the first communication node receives a second response message sent by the terminal.

[0277] In some embodiments, the second response message indicates whether the terminal has received the submission report. In this way, after receiving the second response message, the first communication node can determine whether the terminal has received the submission report.

[0278] In some embodiments, the first communication node sends a second response message to the second communication node through the first interface.

[0279] In some embodiments, the second response message is included in a container of an uplink (UL) non-access (NAS) transmission message. In this way, the second response message can be transmitted using the existing container of the UL NAS transmission message, thereby improving the utilization of transmission resources.

[0280] Step S2203: The first communication node sends a message to the terminal.

[0281] In some embodiments, the terminal receives a message sent by the first communication node.

[0282] In some embodiments, the first communication node sends a first response message to the terminal via the AMF, where the first response message indicates whether the third communication node has received the IMS SMS message. Thus, after receiving the first response message, the terminal can determine whether the third communication node has received the IMS SMS message.

[0283] In some embodiments, the first communication node sends a submission report to the terminal via the AMF.

[0284] In some embodiments, the first communications node sends a NAS registration accept message to the terminal.

[0285] In some embodiments, the NAS registration accept message indicates that the network supports IMS SMS over NAS. In this way, the terminal can perform transmission based on IMS SMS over NAS.

[0286] In some embodiments, a first interface is added between the first communication node and the second communication node, and the first interface is used to transmit IMS SMS service data between the first communication node and the second communication node. Here, the first communication node is an AMF and the second communication node is a P-CSCF; alternatively, the first communication node is an SMSF and the second communication node is a P-CSCF.

[0287] In some embodiments, the term "information" can be interchangeable with terms such as "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "field", and "data".

[0288] In some embodiments, the term "send" can be interchanged with terms such as "transmit", "report", and "transmit".

[0289] The information indication method involved in the embodiments of the present disclosure may include at least one of steps S2201 to S2203. For example, step S2201 can be implemented as an independent embodiment, step S2202 can be implemented as an independent embodiment, and step S2203 can be implemented as an independent embodiment. For example, step S2201 combined with step S2203 can be implemented as an independent embodiment, and step S2202 combined with step S2203 can be implemented as an independent embodiment, but the present invention is not limited thereto.

[0290] FIG3a is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG3a, the present disclosure embodiment relates to a communication method, which is executed by the first communication node 101 and includes:

[0291] Step S3101: Get the message.

[0292] In some embodiments, the optional implementation of step S3101 can refer to the optional implementation of step S2101 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0293] In some embodiments, the first communication node receives a message sent by a terminal, but is not limited thereto and may also receive a first signal sent by other entities.

[0294] In some embodiments, the first communications node obtains a message specified by a protocol.

[0295] In some embodiments, the first communication node performs processing to obtain the message.

[0296] Step S3102: The first communication node transmits data through the first interface.

[0297] In some embodiments, the optional implementation of step S3102 can refer to the optional implementation of step S2102 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0298] Step S3103: Send message.

[0299] In some embodiments, the optional implementation of step S3203 can refer to the optional implementation of step S2103 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0300] The information indication method involved in the embodiments of the present disclosure may include at least one of steps S3101 to S3103. For example, step S3101 can be implemented as an independent embodiment, step S3102 can be implemented as an independent embodiment, and step S3103 can be implemented as an independent embodiment. For example, step S3101 combined with step S3103 can be implemented as an independent embodiment, and step S3102 combined with step S3103 can be implemented as an independent embodiment, but the present invention is not limited thereto.

[0301] FIG3b is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG3b, the present disclosure embodiment relates to a communication method, which is executed by the first communication node 101 and includes:

[0302] Step S3201: Transmit data between the first communication node and the second communication node through the first interface.

[0303] In some embodiments, the first interface is used to transmit data of an Internet Protocol Multimedia Subsystem (IMS) Short Message Service (SMS) service.

[0304] In some embodiments, the optional implementation of step S3201 can refer to the optional implementation of step S2101 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0305] In some embodiments, the first communication node is an Access and Mobility Management Function AMF, and the second communication node is a Proxy Call Session Control Function P-CSCF.

[0306] In some embodiments, the method further comprises:

[0307] Receive IMS SMS short messages sent by terminals.

[0308] In some embodiments, transmitting data between the first communication node and the second communication node through the first interface includes:

[0309] The IMS SMS short message is sent to the second communication node through the first interface.

[0310] In some embodiments, transmitting data between the first communication node and the second communication node through the first interface includes:

[0311] receiving, through the first interface, a first response message sent by the second communication node;

[0312] The first response message indicates whether the second communication node has received the IMS SMS short message.

[0313] In some embodiments, the method further comprises:

[0314] Sending the first response message to the terminal.

[0315] In some embodiments, transmitting data between the first communication node and the second communication node through the first interface includes:

[0316] A submission report sent by the second communication node is received through the first interface.

[0317] In some embodiments, the method further comprises:

[0318] The submission report is sent to the terminal.

[0319] In some embodiments, the method further comprises:

[0320] receiving a second response message sent by the terminal;

[0321] The second response message indicates whether the terminal has received the submission report.

[0322] In some embodiments, transmitting data between the first communication node and the second communication node through the first interface includes:

[0323] The second response message is sent to the second communication node through the first interface.

[0324] In some embodiments, the TMS SMS short message and / or the second response message are included in a container of an uplink (UL) non-access stratum (NAS) transmission message.

[0325] In some embodiments, the first response message and / or the submission report is included in a container of a downlink (DL) non-access stratum (NAS) transmission message.

[0326] In some embodiments, the first communication node is a Short Message Service Function (SMSF), and the second communication node is a Proxy Call Session Control Function (P-CSCF).

[0327] In some embodiments, the method further comprises:

[0328] The receiving terminal sends IMS SMS short messages through AMF.

[0329] In some embodiments, transmitting data between the first communication node and the second communication node through the first interface includes:

[0330] The IMS SMS short message is sent to the second communication node through the first interface.

[0331] In some embodiments, transmitting data between the first communication node and the second communication node through the first interface includes:

[0332] receiving, through the first interface, a first response message sent by the second communication node;

[0333] The first response message indicates whether the third communication node has received the IMS SMS short message.

[0334] In some embodiments, the method further comprises:

[0335] Send the first response message to the terminal through AMF.

[0336] In some embodiments, transmitting data between the first communication node and the second communication node through the first interface includes:

[0337] A submission report sent by the second communication node is received through the first interface.

[0338] In some embodiments, the method further comprises:

[0339] The submission report is sent to the terminal through AMF.

[0340] In some embodiments, the method further comprises:

[0341] receiving a second response message sent by the terminal;

[0342] The second response message indicates whether the terminal has received the submission report.

[0343] In some embodiments, transmitting data between the first communication node and the second communication node through the first interface includes:

[0344] The second response message is sent to the second communication node through the first interface.

[0345] In some embodiments, the TMS SMS short message and / or the second response message are included in a container of an uplink (UL) non-access stratum (NAS) transmission message.

[0346] In some embodiments, the first response message and / or the submission report is included in a container of a downlink (DL) non-access stratum (NAS) transmission message.

[0347] In some embodiments, the method further comprises:

[0348] Receiving a NAS registration request message sent by the terminal;

[0349] The NAS registration request message indicates that the terminal supports NAS-based IMS SMS.

[0350] In some embodiments, the method further comprises:

[0351] Sending a NAS registration acceptance message to the terminal;

[0352] The NAS registration accept message indicates that the network supports NAS-based IMS SMS.

[0353] FIG4a is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG4a, the embodiment of the present disclosure relates to a communication method, which is executed by the second communication node 102 and includes:

[0354] Step S4101: The second communication node transmits data through the first interface.

[0355] In some embodiments, the optional implementation of step S4101 can refer to the optional implementation of step S2101 in Figure 2a and other related parts in the embodiment involved in Figure 2a, which will not be repeated here.

[0356] FIG4b is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG4b, the present disclosure embodiment relates to a communication method, which is executed by the second communication node 102, and the method includes:

[0357] Step S4201: Transmitting data between the first communication node and the second communication node through the first interface;

[0358] In some embodiments, the first interface is used to transmit data of an Internet Protocol Multimedia Subsystem (IMS) Short Message Service (SMS) service.

[0359] In some embodiments, the optional implementation of step S4201 can refer to the optional implementation of step S2101 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0360] In some embodiments, the first communication node is an AMF and the second communication node is a P-CSCF; or, the first communication node is an SMSF and the second communication node is a P-CSCF.

[0361] In some embodiments, transmitting data between the first communication node and the second communication node through the first interface includes:

[0362] The IMS SMS short message sent by the first communication node is received through the first interface.

[0363] In some embodiments, the method further comprises:

[0364] The IMS SMS short message is sent to the third communication node.

[0365] In some embodiments, the method further comprises:

[0366] receiving a first response message sent by a third communication node;

[0367] The first response message indicates whether the third communication node has received the IMS SMS short message.

[0368] In some embodiments, transmitting data between the first communication node and the second communication node through the first interface includes:

[0369] The first response message is sent to the second communication node through the first interface.

[0370] In some embodiments, the method further comprises:

[0371] Receive a submission report sent by the third communication node.

[0372] In some embodiments, transmitting data between the first communication node and the second communication node through the first interface includes:

[0373] The submission report is sent to the first communication node through the first interface.

[0374] In some embodiments, transmitting data between the first communication node and the second communication node through the first interface includes:

[0375] receiving, through the first interface, a second response message sent by the first communication node;

[0376] The second response message indicates whether the terminal has received the submission report.

[0377] In some embodiments, the method further comprises:

[0378] The second response message is sent to the third communication node.

[0379] In some embodiments, the third communication node is an S-CSCF.

[0380] In some embodiments, the TMS SMS short message and / or the second response message are included in a container of an uplink (UL) non-access stratum (NAS) transmission message.

[0381] In some embodiments, the first message and / or the submission report is contained in a container of a downlink (DL) non-access stratum (NAS) transmission message.

[0382] Figure 5a is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 5a, the embodiment of the present disclosure relates to a communication method for a core network device, wherein the core network device includes a first communication node and a second communication node, and the method includes one of the following steps:

[0383] Step S5101: The first communication node transmits data between the first communication node and to the second communication node through the first interface.

[0384] In some embodiments, the first interface is used to transmit data of an Internet Protocol Multimedia Subsystem (IMS) Short Message Service (SMS) service.

[0385] The optional implementation of step S5101 can refer to the optional implementation of step S2101 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0386] In some embodiments, the above method may include the methods of the above embodiments on the communication system side, the communication node side, etc., which will not be repeated here.

[0387] In order to better understand the embodiments of the present disclosure, the technical solution of the present disclosure is further described below through three exemplary embodiments:

[0388] Example 1

[0389] Please refer to Figure 6a, which is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 6a, the embodiment of the present disclosure relates to a communication method, which is used in a communication system 100 and includes one of the following steps:

[0390] Step S6101: The UE registers with the S-CSCF according to the IMS registration process shown in FIG6b or FIG6c.

[0391] Step S6102: The UE submits the encapsulated short message (including SMS-SUBMIT and / or SC address) to the S-CSCF using the appropriate SIP method. The encapsulated short message is sent from the UE to the AMF in the container of the UL NAS transport message.

[0392] For example, for the 5GC enhanced IMS SMS service architecture without SMSF in Figure 1b, the AMF forwards the encapsulated short message (corresponding to the IMS SMS short message in this disclosure) to the P-CSCF, and the P-CSCF then forwards the encapsulated short message to the S-CSCF;

[0393] For example, for the architecture of enhancing IMS SMS services through 5GC with SMSF in Figure 1c, the AMF forwards the encapsulated short message to the SMSF, the SMSF forwards the encapsulated short message to the P-CSCF, and then the P-CSCF forwards the encapsulated short message to the S-CSCF;

[0394] Step S6103: The S-CSCF forwards the encapsulated short message (SMS-submit, SC address) to the IP-SM-GW (AS) based on the stored initial filter criteria (iFC).

[0395] Step S6104: IP-SM-GW (AS) confirms the SIP message.

[0396] Step S6105: The SIP message confirmation is forwarded by the S-CSCF to the UE and then sent by the S-CSCF to the P-CSCF.

[0397] Exemplarily, for the 5GC enhanced IMS SMS service architecture without SMSF in Figure 1b, the P-CSCF sends a SIP message confirmation to the AMF, and then the AMF sends a SIP message confirmation to the UE in the container of the DL NAS transport message (corresponding to the first response message in this disclosure).

[0398] For example, for the architecture of enhanced IMS SMS service via 5GC with SMSF in Figure 1c, the P-CSCF sends a SIP message confirmation to the SMSF, the SMSF sends a SIP message confirmation to the AMF, and then the AMF sends the SIP message confirmation to the UE in the container of the DL NAS transport message.

[0399] Step S6106: The IP-SM-GW performs service authorization based on stored user data. The IP-SM-GW checks whether the user is authorized to use the short message service (e.g., operator-defined barring settings), similar to the authorization performed by a Mobile Switching Center (MSC) or Serving General Packet Radio Service Support Node (SGSN) when short messages are sent over the Circuit Switching (CS) or Packet Switching (PS) domains. Furthermore, the IP-SM-GW checks whether the user is authorized to use encapsulated short messaging over the IMS. If the result of service authorization is negative, the IP-SM-GW will not forward the message and will return an appropriate error message to the UE in a failure report. Otherwise, the IP-SM-GW (AS) extracts the short message (SMS-Submit) and forwards it to the SMS-SC (SC address) via the SMS-IWMSC using standard MAP or Diameter (SGd / Gdd) signaling (as described in TS 23.040).

[0400] Step S6107: The SMS-Interworking MSC for Short Message Service (IWMSC) forwards the short message (SMS-SUBMIT) to the SMS-SC (see TS 23.040).

[0401] Step S6108: SMS-SC sends a submission report (SMS-SUBMITREPORT) to SMS-IWMSC (see TS 23.040).

[0402] Step S6109: SMS-IWMSC sends the submission report to IP-SM-GW (AS) (see TS 23.040).

[0403] Step S6110: The IP-SM-GW (AS) sends the submission report to the S-CSCF, encapsulated in an appropriate SIP request.

[0404] Step S6111: The S-CSCF sends a submission report to the UE. The submission report is sent from the S-CSCF to the P-CSCF;

[0405] For example, for the enhanced IMS SMS service architecture through 5GC without SMSF in Figure 1a, the P-CSCF sends a submission report to the AMF, and then the AMF puts the submission report in the container of the DL NAS transport message and sends it to the UE.

[0406] For example, for the enhanced IMS SMS service architecture through 5GC and SMSF in Figure 1b, the P-CSCF sends a submission report to the SMSF, the SMSF sends a submission report to the AMF, and then the AMF sends the submission report in the DL NAS transport message container to the UE.

[0407] Step S6112: The UE confirms the SIP request to the AMF in the container of the UL NAS transport message (corresponding to the second response message).

[0408] For example, for the enhanced IMS SMS service architecture over 5GC without SMSF in Figure 1a, the AMF sends the UE confirmation to the P-CSCF, which then sends it to the S-CSCF.

[0409] For example, for the architecture of enhanced IMS SMS service via 5GC with SMSF in Figure 1b, the AMF sends the UE confirmation to the SMSF, the SMSF sends the UE confirmation to the P-CSCF, and then the P-CSCF sends it to the S-CSCF.

[0410] Step S6113: The S-CSCF forwards the confirmation of the SIP request (corresponding to the second response message) to the IP-SM-GW (AS).

[0411] Example 2

[0412] Please refer to Figure 6b, which is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 6b, the embodiment of the present disclosure relates to a communication method, which is used in a communication system 100 and includes one of the following steps:

[0413] Step S6201: The UE initiates and completes the registration procedure in the 5GC based on the successful authentication and authorization of the AMF. The UE sends a Registration Request including its preference "IMS SMS over NAS" to the AMF (corresponding to the Send NAS Registration Request message in this disclosure), and if the network supports "IMS SMS over NAS", the AMF responds to the UE with the network capability "IMS SMS over NAS" in the Registration Accept (corresponding to the Send NAS Registration Accept message in this disclosure).

[0414] Step S6202: At any time after registering on the 5GC, the UE registers with the S-CSCF according to the IMS registration procedure. The UE sends the registration information flow as a NAS container to the AMF in an UL NAS transport message. The container includes the public user identity, private user identity, home network domain name, etc. The NAS container type is added to the UL NAS transport message to indicate that the container is for IMS registration.

[0415] The AMF receives the UL NAS transport message from the UE. Based on the NAS container type "IMS Registration", the AMF selects a P-CSCF, e.g. based on pre-configuration on the AMF, and forwards the registration information flow to the P-CSCF.

[0416] After receiving the registration information flow, the PCSCF will send the registration information flow to the SCSCF: PCSCF address / name, public user identity, private user identity, PCSCF network identifier. The P-CSCF binds the UE (UE ID) with the AMF (AMF ID or IP address) for the following signaling interactions of the UE.

[0417] After successful IMS registration, the UE receives an IMS 200 OK from the AMF, which is located in the container of a DL NAS transport message.

[0418] Step S6203: The S-CSCF checks the initial filtering criteria retrieved from the HSS during the IMS registration process.

[0419] Step S6204: After successful IMS registration, based on the retrieved initial filtering criteria, the S-CSCF notifies the IP-SM-GW (AS) about the user's registration. When there is no MSISDN in the UE's IMS subscription profile, the IMSI is notified to the IPSMGW (AS).

[0420] Step S6205: IP-SM-GW (AS) returns OK to S-CSCF.

[0421] Step S6206: The IP-SM-GW (AS) sends an IP-SM-GW registration request to the HSS.

[0422] Step S6207: If needed or for MT-SMS without Mobile Station Integrated Services Digital Network (MSISDN), the HSS stores the received IP-SM-GW address and, if the message waiting flag is set, uses it as an indication that the UE is accessible via IMS to trigger an alert service center message and responds to the IP-SM-GW (as) with IPSMGW Registration Res. The IPSMGW obtains the IP Multimedia Public Identity (IMPU) for SMS delivery without phone URI from the Registration Event Package.

[0423] Step S6208: After the IPSMGW address is successfully registered on the HSS, the HSS checks whether message waiting data is stored and issues an alert to all SCs using the procedure described in TS 23.040.

[0424] Example 3

[0425] Please refer to Figure 6c, which is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 6c, the embodiment of the present disclosure relates to a communication method, which is used in a communication system 100 and includes one of the following steps:

[0426] Step S6301: The UE initiates and completes the registration procedure in the 5GC based on the successful authentication and authorization of the AMF. The UE sends a Registration Request including its preference "IMS SMS over NAS" to the AMF (corresponding to the Send NAS Registration Request message in this disclosure), and if the network supports "IMS SMS over NAS", the AMF responds to the UE with the network capability "IMS SMS over NAS" in the Registration Accept (corresponding to the Send NAS Registration Accept message in this disclosure).

[0427] Step S6302: At any time after registering on the 5GC, the UE registers with the S-CSCF according to the IMS registration procedure. The UE sends the registration information flow as a NAS container to the AMF in an UL NAS transport message. The container includes the public user identity, private user identity, home network domain name, etc. The NAS container type is added to the UL NAS transport message to indicate that the container is for IMS registration.

[0428] The AMF receives the UL NAS transport message from the UE. Based on the NAS container type "IMS Registration", the AMF forwards the registration information flow to the SMSF. The SMSF then selects a P-CSCF, e.g., based on pre-configuration on the SMSF, and the SMSF forwards the registration information flow to the P-CSCF.

[0429] After receiving the registration information flow, the PCSCF will send the registration information flow to the SCSCF: PCSCF address / name, public user identity, private user identity, PCSCF network identifier. The P-CSCF binds the UE (UE ID) with the SMSF (SMSF ID or SMSF IP address) for the following signaling interactions of the UE.

[0430] After successful IMS registration, the UE receives an IMS 200 OK from the AMF, which is located in the container of a DL NAS transport message.

[0431] Step S6303: The S-CSCF checks the initial filtering criteria retrieved from the HSS during the IMS registration process.

[0432] Step S6304: After successful IMS registration, based on the retrieved initial filtering criteria, the S-CSCF notifies the IP-SM-GW (AS) about the user's registration. When there is no MSISDN in the UE's IMS subscription profile, the IMSI is notified to the IPSMGW (AS).

[0433] Step S6305: IP-SM-GW (AS) returns OK to S-CSCF.

[0434] Step S6306: The IP-SM-GW (AS) sends an IP-SM-GW registration request to the HSS.

[0435] Step S6307: If needed or for MT-SMS without MSISDN, the HSS stores the received IP-SM-GW address and, if the Message Waiting Flag is set, uses it as an indication that the UE is accessible via IMS to trigger an Alerting Service Centre message and responds to the IP-SM-GW (as) with the IPSMGW Registration Res. The IPSMGW obtains the IMPU for SMS delivery without Phone URI from the Registration Event Package.

[0436] Step S6308: After the IPSMGW address is successfully registered on the HSS, the HSS checks whether message waiting data is stored and issues an alert to all SCs using the procedure described in TS 23.040.

[0437] In the embodiments of the present disclosure, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations of other embodiments.

[0438] In the embodiments of the present disclosure, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations of other embodiments.

[0439] The disclosed embodiments address passive IoT terminals. Different terminal types and capacitor sizes can affect the terminal's data transmission capabilities and the intervals between data transmissions. The disclosed embodiments define the terminal's data transmission capabilities and report them to the network, assisting the network in effectively triggering the terminal to report data.

[0440] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0441] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0442] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0443] Figure 7a is a schematic structural diagram of the first communication node proposed in an embodiment of the present disclosure. As shown in Figure 7a, the first communication node 7100 may include: at least one of a transceiver module 7101, a processing module 7102, etc. In some embodiments, the transceiver module is used to receive the first information. Optionally, the transceiver module is used to execute at least one of the communication steps such as sending and / or receiving (such as step S2101 but not limited thereto) executed by the terminal 101 in any of the above methods, which will not be repeated here. Optionally, the processing module is used to execute at least one of the other steps executed by the terminal 101 in any of the above methods, which will not be repeated here.

[0444] Figure 7b is a schematic diagram of the structure of the second communication node proposed in an embodiment of the present disclosure. As shown in Figure 7b, the second communication node 7200 may include: at least one of a transceiver module 7201, a processing module 7202, etc. In some embodiments, the above-mentioned transceiver module is used to send the first information. Optionally, the above-mentioned transceiver module is used to perform at least one of the communication steps such as sending and / or receiving (for example, step S2101, but not limited to this) performed by the terminal 101 in any of the above methods, which will not be repeated here. In some embodiments, the transceiver module may include a sending module and / or a receiving module, and the sending module and the receiving module may be separate or integrated together. Optionally, the transceiver module may be interchangeable with the transceiver. Optionally, the above-mentioned processing module is used to perform at least one of the other steps performed by the first communication node 102 in any of the above methods, which will not be repeated here.

[0445] In some embodiments, the processing module can be a single module or can include multiple submodules. Optionally, the multiple submodules respectively execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be interchangeable with the processor.

[0446] Figure 8a is a schematic diagram of the structure of a communication device 8100 proposed in an embodiment of the present disclosure. Communication device 8100 can be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user equipment, etc.), a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods. Communication device 8100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0447] As shown in Figure 8a, the communication device 8100 includes one or more processors 8101. The processor 8101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (such as a base station, baseband chip, terminal device, terminal device chip, DU or CU, etc.), execute programs, and process program data. The communication device 8100 is used to perform any of the above methods.

[0448] In some embodiments, the communication device 8100 further includes one or more memories 8102 for storing instructions. Optionally, all or part of the memories 8102 may be located outside the communication device 8100.

[0449] In some embodiments, the communication device 8100 further includes one or more transceivers 8103. When the communication device 8100 includes one or more transceivers 8103, the transceiver 8103 performs at least one of the communication steps such as sending and / or receiving in the above method (for example, step S2101 and step S2102, but not limited thereto), and the processor 8101 performs at least one of the other steps (for example, step S2102).

[0450] In some embodiments, a transceiver may include a receiver and / or a transmitter. The receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, and transceiver circuit may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0451] In some embodiments, the communication device 8100 may include one or more interface circuits 8104. Optionally, the interface circuit 8104 is connected to the memory 8102. The interface circuit 8104 may be configured to receive signals from the memory 8102 or other devices, and may be configured to send signals to the memory 8102 or other devices. For example, the interface circuit 8104 may read instructions stored in the memory 8102 and send the instructions to the processor 8101.

[0452] The communication device 8100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 8100 described in the present disclosure is not limited thereto, and the structure of the communication device 8100 may not be limited by FIG. 8a. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0453] FIG8b is a schematic diagram of the structure of a chip 8200 according to an embodiment of the present disclosure. If the communication device 8100 can be a chip or a chip system, reference can be made to the schematic diagram of the structure of the chip 8200 shown in FIG8b, but the present disclosure is not limited thereto.

[0454] The chip 8200 includes one or more processors 8201 , and the chip 8200 is configured to execute any of the above methods.

[0455] In some embodiments, the chip 8200 further includes one or more interface circuits 8202. Optionally, the interface circuit 8202 is connected to the memory 8203. The interface circuit 8202 can be used to receive signals from the memory 8203 or other devices, and can be used to send signals to the memory 8203 or other devices. For example, the interface circuit 8202 can read instructions stored in the memory 8203 and send the instructions to the processor 8201.

[0456] In some embodiments, the interface circuit 8202 performs at least one of the communication steps such as sending and / or receiving in the above method, and the processor 8201 performs at least one of the other steps.

[0457] In some embodiments, terms such as interface circuit, interface, transceiver pin, and transceiver may be used interchangeably.

[0458] In some embodiments, the chip 8200 further includes one or more memories 8203 for storing instructions. Alternatively, all or part of the memories 8203 may be outside the chip 8200.

[0459] The present disclosure also proposes a storage medium having instructions stored thereon, which, when executed on the communication device 8100, causes the communication device 8100 to execute any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto, and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto, and may also be a temporary storage medium.

[0460] The present disclosure also provides a program product, which, when executed by the communication device 8100, enables the communication device 8100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0461] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

Claims

1. A communication method, characterized in that: Applied to a first communication node, the method comprises: transmitting data between the first communication node and the second communication node via a first interface; The first interface is used to transmit data of the Internet Protocol Multimedia Subsystem IMS Short Message Service SMS service.

2. The method according to claim 1, characterized in that The first communication node is an access and mobility management function AMF, and the second communication node is a proxy call session control function P-CSCF.

3. The method according to claim 2, characterized in that The method further comprises: Receive IMS SMS short messages sent by terminals; The transmitting of data between the first communication node and the second communication node through the first interface includes: The IMS SMS short message is sent to the second communication node through the first interface.

4. The method according to claim 3, characterized in that The transmitting of data between the first communication node and the second communication node through the first interface includes: receiving, through the first interface, a first response message sent by the second communication node; wherein the first response message indicates whether the third communication node has received the IMS SMS short message; Sending the first response message to the terminal.

5. The method according to claim 2, characterized in that: The transmitting of data between the first communication node and the second communication node through the first interface includes: receiving, through the first interface, a submission report sent by the second communication node; The submission report is sent to the terminal.

6. The method according to claim 5, characterized in that The method further comprises: receiving a second response message sent by the terminal; The second response message indicates whether the terminal has received the submission report.

7. The method according to claim 1, characterized in that The first communication node is a short message service function SMSF, and the second communication node is a proxy call session control function P-CSCF.

8. The method according to claim 7, characterized in that The method further comprises: Receive IMS SMS short messages sent by the terminal through AMF; The transmitting of data between the first communication node and the second communication node through the first interface includes: The IMS SMS short message is sent to the second communication node through the first interface.

9. The method according to claim 8, characterized in that The transmitting of data between the first communication node and the second communication node through the first interface includes: receiving, through the first interface, a first response message sent by the second communication node; wherein the first response message indicates whether the third communication node has received the IMS SMS short message; The first response message is sent to the terminal through AMF.

10. The method according to claim 7, characterized in that The transmitting of data between the first communication node and the second communication node through the first interface includes: receiving, through the first interface, a submission report sent by the second communication node; The submission report is sent to the terminal through AMF.

11. The method according to claim 10, characterized in that The method further comprises: Receiving a second response message sent by the terminal through the AMF; The second response message indicates whether the terminal has received the submission report.

12. The method according to claim 6 or 11, characterized in that: The transmitting of data between the first communication node and the second communication node through the first interface includes: The second response message is sent to the second communication node through the first interface.

13. The method according to claim 3, 6, 8 or 11, characterized in that: The TMS SMS short message and / or the second response message are included in a container of an uplink UL non-access stratum NAS transmission message.

14. The method according to claim 4, 5, 9 or 10, characterized in that: The first response message and / or the submission report are included in a container of a downlink (DL) non-access stratum (NAS) transmission message.

15. The method according to claim 1, characterized in that The method further comprises: Receiving a NAS registration request message sent by the terminal; The NAS registration request message indicates that the terminal supports NAS-based IMS SMS.

16. The method according to claim 1, characterized in that The method further comprises: Sending a NAS registration acceptance message to the terminal; The NAS registration accept message indicates that the network supports NAS-based IMS SMS.

17. A communication method, characterized in that: Applied to a second communication node, the method comprises: transmitting data between the first communication node and the second communication node via a first interface; The first interface is used to transmit data of the Internet Protocol Multimedia Subsystem IMS Short Message Service SMS service.

18. The method according to claim 17, characterized in that The first communication node is AMF, and the second communication node is P-CSCF; or, the first communication node is SMSF, and the second communication node is P-CSCF.

19. The method according to claim 18, characterized in that The transmitting of data between the first communication node and the second communication node through the first interface includes: Receiving the IMS SMS short message sent by the first communication node through the first interface; The IMS SMS short message is sent to the third communication node.

20. The method according to claim 19, characterized in that The method further comprises: Receiving a first response message sent by a third communication node; wherein the first response message indicates whether the third communication node has received the IMS SMS short message; The transmitting of data between the first communication node and the second communication node through the first interface includes: The first response message is sent to the second communication node through the first interface.

21. The method according to claim 18, characterized in that The method further comprises: receiving a submission report sent by a third communication node; The transmitting of data between the first communication node and the second communication node through the first interface includes: The submission report is sent to the first communication node through the first interface.

22. The method according to claim 21, characterized in that The transmitting of data between the first communication node and the second communication node through the first interface includes: receiving, through the first interface, a second response message sent by the first communication node; wherein the second response message indicates whether the terminal has received the submission report; The second response message is sent to the third communication node.

23. The method according to any one of claims 19, 20, 21 and 22, characterized in that: The third communication node is S-CSCF.

24. The method according to claim 19 or claim 22, characterized in that: The TMS SMS short message and / or the second response message are included in a container of an uplink UL non-access stratum NAS transmission message.

25. The method according to claim 20 or claim 21, characterized in that: The first message and / or the submission report are contained in a container of a downlink (DL) non-access stratum (NAS) transmission message.

26. A communication method, characterized in that: The method is performed by a core network device, the core network device includes a first communication node and a second communication node, and the method includes: The first communication node transmits data to the second communication node through the first interface; The first interface is used to transmit data of the Internet Protocol Multimedia Subsystem IMS Short Message Service SMS service.

27. A first communication node, characterized in that: The first communication node comprises: a processing module, configured to transmit data between the first communication node and the second communication node through a first interface; The first interface is used to transmit data of the Internet Protocol Multimedia Subsystem IMS Short Message Service SMS service.

28. A second communication node, characterized in that: The second communication node comprises: a processing module, configured to transmit data between the first communication node and the second communication node through a first interface; The first interface is used to transmit data of the Internet Protocol Multimedia Subsystem IMS Short Message Service SMS service.

29. A communication system, characterized in that: The information indication system includes a first communication node and a second communication node; the first communication node is configured to implement the communication method described in any one of claims 1 to 16, and the second communication node is configured to implement the communication method described in any one of claims 17 to 25.

30. A first communication node, characterized in that: The first communication node comprises: one or more processors; Wherein, the first communication node is used to execute the communication method according to any one of claims 1 to 16.

31. A second communication node, wherein: The second communication node comprises: one or more processors; The second communication node is used to execute the communication method described in any one of claims 17 to 25.

32. A storage medium, wherein: The storage medium stores instructions, and when the instructions are executed on the communication device, the communication device executes the communication method according to any one of claims 1 to 16 and claims 17 to 25.

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