CN114390454A - Message transmission method, system, electronic device and storage medium - Google Patents
Message transmission method, system, electronic device and storage medium Download PDFInfo
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Abstract
The embodiment of the invention relates to the field of communication, and discloses a message transmission method, a message transmission system, electronic equipment and a storage medium. In the invention, the state of the network element to be interacted with the SMSF and the list of the standby network element are obtained, wherein the network element state comprises an accessible state and an inaccessible state; if the state of the network element to be interacted is the reachable state, establishing a plurality of links to the network element to be interacted; selecting the link and the network element to be interacted to perform the message transmission through a preset link selection mode until the message transmission is successful; if the state of the to-be-interacted network element is the unreachable state, switching the unselected standby network element according to the list of the standby network element, and setting the standby network element as the to-be-interacted network element. And the reliable transmission of the message between the SMSF and the network element to be interacted under the abnormal condition is ensured.
Description
Technical Field
The embodiments of the present invention relate to the field of communications, and in particular, to a message transmission method, a message transmission system, an electronic device, and a storage medium.
Background
The short message as the information receiving and transmitting channel which is necessary for the network can continue to exist for a long time in the 5G era, and the voice and the short message are the most basic mobile communication services, are the necessary basic functions of each mobile terminal, are representatives of telecommunication services, and are communication services which can be directly reached, intercommunicated and roamed in the global range.
A Short Message Service Center (SMSC), which is a network element existing in the 2G era, is mainly used for storing and forwarding Short messages, generally interacts with peripheral network elements based on a conventional map (management Automation protocol) protocol, and is numerous in the current networks of operators. 4G network evolution, the interaction between network elements is mainly based on SIP protocol, IPSMGW network elements are added, the coding and decoding conversion of SIP and MAP protocol is realized, and thus the cost and the influence brought by upgrading and modifying the existing network short message center are avoided. The 5G network evolves, the interaction between the network elements is based on the HTTP2 protocol, and similarly, the 3GPP adds a Short Message Service network element (SMSF) in the 5G core network to implement the coding and decoding conversion between the HTTP2 and the MAP protocol. The SMSF serves as a terminal receiving and sending 5G NAS short message interface and a bridge between the 5G core network and the traditional short message center. The SMSF interacts with other network elements through an N20 interface.
However, since each network element of 5G adopts a service interface, the bottom layer adopts HTTP2 protocol for multilink transmission. Under certain external factors, such as network fluctuation, HTTP2 layer protocol error, network element down, etc., a certain link or all communications between the SMSF and the network element to be interacted are interrupted, thereby causing a large call loss.
Disclosure of Invention
The embodiment of the invention aims to provide a message transmission method, a message transmission system, electronic equipment and a storage medium, which ensure the reliable transmission of messages between SMSF and other network elements under abnormal conditions.
In order to solve the above technical problem, an embodiment of the present invention provides a message transmission method, including the following steps:
acquiring the state of the network element to be interacted with the SMSF and a list of standby network elements, wherein the state of the network element comprises an accessible state and an inaccessible state;
if the state of the network element to be interacted is the reachable state, establishing a plurality of links to the network element to be interacted;
selecting the link and the network element to be interacted to perform the message transmission through a preset link selection mode until the message transmission is successful;
if the state of the to-be-interacted network element is the unreachable state, switching the unselected standby network element according to the list of the standby network element, and setting the standby network element as the to-be-interacted network element.
The embodiment of the present invention also provides a message transmission system, including:
a receiving module, configured to obtain a state of a network element to be interacted with the SMSF and a list of standby network elements, where the AMF state includes an reachable state and a unreachable state;
a link redirection module, configured to establish multiple links to the network element to be interacted if the state of the network element to be interacted is the reachable state; selecting the link and the network element to be interacted to perform the message transmission through a preset link selection mode until the message transmission is successful;
and the network element redirection module is used for switching the unselected standby network elements according to the list of the standby network elements and setting the standby network elements as the network elements to be interacted if the state of the network elements to be interacted is the unreachable state.
An embodiment of the present invention also provides an electronic device, including:
at least one processor; and the number of the first and second groups,
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the message transmission method described above.
Embodiments of the present invention also provide a computer-readable storage medium, which when executed by a processor implements the above-described method of message transmission.
Compared with the prior art, the method and the device for the message transmission determine the network element capable of performing message transmission with the SMSF by judging the state of the network element, and avoid the time and resource cost which are consumed by establishing a link with an inaccessible network element and switching the link; meanwhile, a plurality of links are established with the accessible network elements to be interacted, so that the success probability of message transmission is increased; and the standby network element list can perform transmission attempt with a plurality of network elements, so that under the abnormal condition, the SMSF can still perform message transmission with the network element to be interacted, and the transmission is more reliable.
In addition, in the message transmission method provided in the embodiment of the present invention, in the acquiring the state of the network element to be interacted with the SMSF and the list of the standby network elements, the acquiring the state of the network element to be interacted with the SMSF includes: acquiring a change notification of the network element to be interacted at regular time through a network storage function (NRF); and decoding the change notice to acquire the state of the network element to be interacted. By acquiring the change notification at regular time, the state of the network element can be changed at regular time, so that the state of the network element is more accurate.
In addition, the message transmission method provided in the embodiment of the present invention, where the establishing a plurality of links to the network element to be interacted includes: acquiring a related network interconnection protocol IP of the network element to be interacted through a network storage function NRF; and establishing IP links according to the IP addresses, wherein the number of the IP links is more than 1. And a link is established according to the IP address, so that the link setting is more reasonable.
In addition, the message transmission method provided in the embodiment of the present invention, where the link is selected to perform the message transmission with the network element to be interacted in a preset link selection manner until the message transmission is successful, includes: and configuring a network element IP reselection switch, the maximum network element IP reselection times, an IP link reselection switch and the maximum IP link reselection times. By setting various thresholds, overload work of a link and a network element is avoided, and the healthy running of transmission work is maintained.
In addition, in the message transmission method provided by the embodiment of the present invention, it is determined that the network element IP reselection switch and the IP link reselection switch are turned on, other IP links are switched to perform the message transmission, and if the transmission fails, the state of the network element to be interacted is changed to an unreachable state. And the network element state is changed in real time according to the transmission result, so that the latest network element state can be conveniently obtained in the next transmission.
In addition, in the message transmission method provided in the embodiment of the present invention, in the case that it is determined that the network element IP reselection switch and the IP link reselection switch are turned on, and other IP links are switched to send the service request notification, if the sending fails, the state of the network element to be interacted is changed to an unreachable state.
In addition, the method for transmitting a message according to an embodiment of the present invention, where switching the unselected standby network element according to the list of the standby network element includes: and determining that the spare network element reselection switch is turned on, and switching the spare network elements which are not selected in the spare network element list, wherein the switching times are less than the maximum reselection times of the spare network elements.
Drawings
One or more embodiments are illustrated by the corresponding figures in the drawings, which are not meant to be limiting.
Fig. 1 is a flowchart of a message transmission method according to a first embodiment of the present invention;
fig. 2 is a flowchart of a message transmission method according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a message transmission system provided in a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of an electronic device according to a fourth embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in order to provide a better understanding of the present application in various embodiments of the present invention. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments.
The following embodiments are divided for convenience of description, and should not constitute any limitation to the specific implementation manner of the present invention, and the embodiments may be mutually incorporated and referred to without contradiction.
A first embodiment of the present invention relates to a message transmission method. The specific flow is shown in figure 1.
In this embodiment, each network element is started, and the service is not provided until a network storage Function (NRF) registers. The NRF is used to perform NF registration, management, and status detection, and implement automated management of all NFs, and the registration information includes NF type, address, service list, and the like. Unlike mobile communication systems in the past, the 5G system architecture will gradually cancel dedicated Network element devices, and instead adopt a form of deploying various Network Functions (NF) on a general-purpose server.
Therefore, the receiving unit of the SMSF receives the network element registration information sent by the NRF, and the decoding unit of the SMSF decodes the registration information, where the registration information may include information such as an IP port of a network element service, an IP port priority, a network element status, and a standby network element list. Meanwhile, the SMSF monitors the network element state through the NRF, when the network element to be interacted is online or offline, the NRF sends a change notification to the SMSF, the notification comprises the current network element state, after the SMSF receives and decodes the network element state, the instanceID is used as an index to store the network element state, namely the instanceID corresponds to different network element states, and the latest network element state is obtained by obtaining the latest instanceID.
The standby network element list comprises information such as network element identification and address of the standby network element, and other network elements are switched to carry out interaction and message transmission under the condition that the current network element to be interacted cannot carry out interaction through the standby network element list, so that when the current network element cannot be transmitted with the message under the abnormal condition, the connection with the standby network element can still be established, and reliable transmission is ensured.
It should be noted that, since different users have different network elements and states of each network element, after the network element list information and the instanceID information are stored, an International Mobile Subscriber Identity (IMSI) is generated as an index for subsequently querying the network element list information and the instanceID information.
Specifically, according to the needs of different application scenarios, the SMSF may interact with Network elements such as an Access and Mobility Management Function (AMF), a Session Management Function (SMF), a Network Exposure Function (NEF), and transmit a message, where in this embodiment, the Network elements to be interacted are not limited.
The communication state of the network element is detected in advance, the state whether the network element is reachable is obtained, the state of the network element is stored, and the link is established only for the reachable network element for transmission, so that the time cost and the resource cost wasted by retrying the link due to the establishment of the link for the unreachable network element are avoided.
The method for detecting the communication state of the network element comprises passive detection and active detection.
The passive detection mode specifically comprises the following steps:
s1, the SMSF registers the network element information with the NRF.
And S2, the SMSF subscribes the network element information to the NRF.
S3, SMSF receives NRF about network element state change notice, and after decoding, network element state is obtained.
And S4, storing the network element state information in the storage unit by taking the instanceId as an index.
Since the passive detection mode is not timely, the network element state may not be updated or not be present for a long time in some cases, and at this time, the network element state needs to be acquired by using the active detection mode.
The active detection mode specifically comprises the following steps:
s1, the SMSF configures the network element IP-reselection switch N1 and the reselection time N2, and the IP link-reselection switch N3 and the time N4, and the SMSF configures the IP link number N5.
S2, SMSF is used as service consumer to obtain network element service related IP from NRF.
S3, the SMSF establishes N5 links to the network element to be detected according to the IP.
S4, SMSF selects a link to request service to the network element to be detected.
And S5, if successful, ending the step and changing the network element state into the reachable state. If it fails or times out, step 6 continues.
S6, judging whether the N3 is opened or not. If N3 is open, N5>1 and N4>1, then other link retry requests under the IP are switched directly (jump 4). If the N3 is not opened or the retry number reaches N4 or N5, the process continues to step 7.
S7, judging whether the N1 is opened or not, and if the N1 is not opened, jumping to the step 9. Otherwise, judging whether the jumping times reach N2, jumping to 9 if the jumping times reach N2, and otherwise, continuing.
And S8, switching the IP and skipping to the step 3.
And S9, updating the network element state to be an unreachable state by using the instanceId as an index.
Acquiring the relevant IP of the network element to be interacted through a network storage function NRF, namely acquiring the registration information acquired in the step 101, wherein the registration information comprises the IP relevant to the network element to be interacted; and establishing IP links according to the network interconnection protocol, wherein the number of the IP links is more than 1.
In particular, an IP link is a communication means or medium through which nodes can communicate at the data link layer of the Internet protocol suite. The type of IP link may include simple ethernet, bridged ethernet, hub, or Asynchronous Transfer Mode (ATM) network. The registration information obtained in step 101 includes, in addition to the IP related to the network element to be interacted, the priority of the IP port, various load conditions, and the like, according to the information, the related IPs are sorted, the IP with higher priority and smaller load is arranged in front, the IP is selected from front to back in the sorting order, and after the IP is selected, a plurality of links are established to the network element to be interacted according to the selected IP address.
And 103, selecting the link and the network element to be interacted to perform the message transmission through a preset link selection mode until the message transmission is successful.
Configuring an IP-reselection switch and the maximum number of times to reselect an IP, and an IP link reselection switch and the maximum number of times to reselect an IP link in the SMSF.
Selecting one link for transmission according to a preset link selection mode, judging whether an IP link reselection switch is started or not if the transmission fails, and switching other links for transmission if the IP link reselection switch is started and the reselection frequency does not exceed the maximum frequency of reselecting the IP link;
if the IP link is not started or all the links of the IP cannot be successfully transmitted, judging whether the IP-reselection switch is started, if the IP-reselection switch is started and the maximum number of times of IP reselection is not reached, switching other IPs to establish a link according to the sequence order of the IPs, and switching the link according to a preset link selection mode until the message is successfully transmitted;
and if the IP-reselection switch is not started, or the IP reselection times reach the maximum times, and all the links cannot be successfully transmitted, changing the state of the current network element into an unreachable state.
And step 104, if the state of the network element to be interacted is the unreachable state, switching the unselected standby network element according to the list of the standby network element, and setting the standby network element as the network element to be interacted.
Because the current state of the network element to be interacted is the unreachable state, the process of establishing the link is not carried out any more, and the time and resource cost which are consumed by establishing the link with the unreachable network element and switching the link are obviously reduced.
Therefore, according to the identifier of the standby network element in the standby network element list, the network element interacting with the SMSF is switched to the standby network element, and the standby network element is used as the network element to be interacted, and the process of step 103 is executed.
In the embodiment, the network element capable of performing message transmission with the SMSF is determined by judging the state of the network element, so that the time and resource cost consumed for establishing a link with an inaccessible network element and switching the link are avoided; meanwhile, a plurality of links are established with the accessible network elements to be interacted, so that the success probability of message transmission is increased; and the standby network element list can perform transmission attempt with a plurality of network elements, so that under the abnormal condition, the SMSF can still perform message transmission with the network element to be interacted, and the transmission is more reliable.
A second embodiment of the present invention relates to a message transmission method, which takes the interaction between an SMSF and an mobility Management network element (AMF) as an example. The AMF is the termination of the RAN control plane interface and also of the NAS protocol, providing ciphering and integrity protection for the NAS. The main functions of the AMF also include access authorization and authentication, connection management, mobility management, etc. In the scenario of interworking with EPS, the AMF is responsible for the allocation of EPS bearer IDs, receives all connection and session related information from the User Equipment (UE), and is responsible for handling connection and mobility management tasks.
The specific steps of the interaction of the SMSF with the AMF are shown in FIG. 2.
And acquiring the state of the AMF to be interacted through the instanceId, and acquiring the identification of the standby AMF, namely a Globally Unique AMF identifier (GUAMI, Global Unique AMF ID) through the standby AMF list.
S1, if the AMF state is the reachable state, go to step 202.
In step 203, the SMSF configures the AMF IP-reselection switch N1 and the maximum reselection time N2, and the IP link-reselection switch N3 and the maximum reselection time N4, and the SMSF configures the number of IP links N5.
And step 204, sequencing the obtained IPs according to the conditions of priority, load and the like, and selecting unselected IPs according to the sequence of high priority and low load to establish N5 links.
Step 205 selects a link to transmit a message to the AMF according to a preset selection policy. If the transmission is successful, the process is ended; if not, go to step 205.
if the N3 is started and the switching times do not reach N4 and N5, switching other IP links for retry until the communication is successful;
if N3 is not turned on, the retry number reaches the maximum IP link reselection number N4, or the retry number reaches the IP link number N5, step 206 is executed.
if N1 is turned on, go to step 203;
if N1 is not opened or the AMF IP reselection times exceed the maximum reselection times N2, the current AMF state is changed to an unreachable state.
S2, if the AMF status is not reachable, go to step 208.
Specifically, the GUAMI maximum retry number is configured to be N6.
Judging whether the GUAMI switching times reach N6:
if not, selecting the GUAMI of the unselected standby AMF in the standby AMF list, taking the selected standby AMF as the AMF to be interacted, and executing step 202.
If the switching times reach N6, the switching step is ended, the process is ended, and the message transmission fails.
In the embodiment, the maximum retry times are configured at the AMF handover, the IP handover and the IP link handover, and the retry times are limited by configuring the maximum retry times, so that the situation that the operation needs to be performed for a long time and excessive operation space and resources are wasted due to a large number of network elements is avoided, and healthy transmission is ensured.
In the interactive process of the SMSF and the AMF, a plurality of times of reselection redirection processes are set, the condition that the whole transmission process is influenced because partial communication channels or network elements have faults in the process of interactive transmission of messages is avoided, the reliability of the transmission process is improved, the interactive objects of the SMSF can be redirected by methods of link switching, IP switching or AMF switching under abnormal conditions such as network fluctuation, HTTP2 layer protocol error and AMF network element crash, and the capacity of communication fault tolerance is greatly improved.
The steps of the above methods are divided for clarity, and the implementation may be combined into one step or split some steps, and the steps are divided into multiple steps, so long as the same logical relationship is included, which are all within the protection scope of the present patent; it is within the scope of the patent to add insignificant modifications to the algorithms or processes or to introduce insignificant design changes to the core design without changing the algorithms or processes.
A third embodiment of the present invention relates to a message transmission system, as shown in fig. 4, including:
a receiving module 301, configured to obtain a status of a network element to be interacted with the SMSF and a list of standby network elements, where the AMF status includes an reachable status and an unreachable status.
Specifically, the receiving module further includes: the device comprises a message receiving unit, a decoding unit and a buffering unit. The message receiving unit is used for receiving message notification, instanceId, network element list information and the like; the decoding unit is used for decoding the notice and the message; the cache unit is used for storing the mapping relation between the IMSI, the instanceId and the network element list.
It should be noted that the instanceId is a unique identifier of a network element state (e.g., an AMF state), the instanceId corresponds to a network element identifier, the network element identifier is in a network element list, and the instanceId is used as a key to establish a corresponding relationship.
A link redirection module 302, configured to establish multiple links to the network element to be interacted if the state of the network element to be interacted is the reachable state; selecting the link and the network element to be interacted to perform the message transmission through a preset link selection mode until the message transmission is successful;
a network element redirection module 303, configured to switch the unselected standby network element according to the list of the standby network element if the status of the to-be-interacted network element is the unreachable status, and set the standby network element as the to-be-interacted network element.
It should be understood that this embodiment is a system example corresponding to the first embodiment, and may be implemented in cooperation with the first embodiment. The related technical details mentioned in the first embodiment are still valid in this embodiment, and are not described herein again in order to reduce repetition. Accordingly, the related-art details mentioned in the present embodiment can also be applied to the first embodiment.
It should be noted that each module referred to in this embodiment is a logical module, and in practical applications, one logical unit may be one physical unit, may be a part of one physical unit, and may be implemented by a combination of multiple physical units. In addition, in order to highlight the innovative part of the present invention, elements that are not so closely related to solving the technical problems proposed by the present invention are not introduced in the present embodiment, but this does not indicate that other elements are not present in the present embodiment.
A fourth embodiment of the present invention relates to an electronic apparatus, as shown in fig. 4, including:
at least one processor 401; and a memory 402 communicatively coupled to the at least one processor 401; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform a message transmission method.
The memory and the processor are connected by a bus, which may include any number of interconnected buses and bridges, linking together one or more of the various circuits of the processor and the memory. The bus may also link various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. A bus interface provides an interface between the bus and the transceiver. The transceiver may be one element or a plurality of elements, such as a plurality of receivers and transmitters, providing a means for communicating with various other apparatus over a transmission medium. The data processed by the processor is transmitted over a wireless medium via an antenna, which further receives the data and transmits the data to the processor.
The processor is responsible for managing the bus and general processing and may also provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions. And the memory may be used to store data used by the processor in performing operations.
Those skilled in the art can understand that all or part of the steps in the method of the foregoing embodiments may be implemented by a program to instruct related hardware, where the program is stored in a storage medium and includes several instructions to enable a device (which may be a single chip, a chip, etc.) or a processor (processor) to execute all or part of the steps of the method described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.
Claims (12)
1. A message transmission method is applied to a short message service network element (SMSF), and comprises the following steps:
acquiring the state of the network element to be interacted with the SMSF and a list of standby network elements, wherein the state of the network element comprises an accessible state and an inaccessible state;
if the state of the network element to be interacted is the reachable state, establishing a plurality of links to the network element to be interacted;
selecting the link and the network element to be interacted to perform the message transmission through a preset link selection mode until the message transmission is successful;
if the state of the to-be-interacted network element is the unreachable state, switching the unselected standby network element according to the list of the standby network element, and setting the standby network element as the to-be-interacted network element.
2. The message transmission method according to claim 1, wherein the acquiring the status of the network element to be interacted with the SMSF comprises:
acquiring a change notification of the network element to be interacted at regular time through a network storage function (NRF);
and decoding the change notice to acquire the state of the network element to be interacted.
3. The message transmission method according to claim 1, wherein the establishing a plurality of links to the network element to be interacted comprises:
acquiring a related network interconnection protocol IP address of the network element to be interacted through a network storage function NRF;
and establishing IP links according to the IP addresses, wherein the number of the IP links is more than 1.
4. The message transmission method according to claim 1, wherein the selecting the link and the network element to be interacted to perform the message transmission in the preset link selection manner until the message transmission is successful comprises:
selecting a link to perform the message transmission with the network element to be interacted by the link selection mode;
and if the message transmission fails, switching other links to retry in the link selection mode.
5. The message transmission method according to claim 1, wherein the selecting the link and the network element to be interacted to perform the message transmission in a preset link selection manner until the message transmission is successful comprises:
and configuring a network element IP reselection switch, the maximum network element IP reselection times, an IP link reselection switch and the maximum IP link reselection times.
6. The message transmission method according to claim 4 or 5, wherein the switching another link retry in the link selection mode if the message transmission fails comprises:
and determining that the network element IP reselection switch and the IP link reselection switch are turned on, and switching other IP links to perform the message transmission, wherein the switching times are less than the network element IP maximum reselection times, the IP link maximum reselection times and the number of the IP links.
7. The message transmission method according to claim 6, wherein the network element IP reselection switch and the IP link reselection switch are determined to be turned on, other IP links are switched to perform the message transmission, and if the transmission fails, the state of the network element to be interacted is changed to an unreachable state.
8. The message transmission method according to claim 1, wherein the switching the unselected standby network element according to the list of the standby network element, and setting the standby network element as the network element to be interacted before, comprises:
and configuring the spare network element reselection switch and the maximum reselection times of the spare network element.
9. The message transmission method according to claim 1 or 8, wherein the switching the spare network element that is not selected according to the list of the spare network elements comprises:
and determining that the spare network element reselection switch is turned on, and switching the spare network elements which are not selected in the spare network element list, wherein the switching times are less than the maximum reselection times of the spare network elements.
10. A message transmission system, comprising:
a receiving module, configured to obtain a state of a network element to be interacted with an SMSF and a list of standby network elements, where the network element state includes an reachable state and a unreachable state;
a link redirection module, configured to establish multiple links to the network element to be interacted if the state of the network element to be interacted is the reachable state; selecting the link and the network element to be interacted to perform the message transmission through a preset link selection mode until the message transmission is successful;
and the network element redirection module is used for switching the unselected standby network elements according to the list of the standby network elements and setting the standby network elements as the network elements to be interacted if the state of the network elements to be interacted is the unreachable state.
11. An electronic device, comprising:
at least one processor; and the number of the first and second groups,
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the message transmission method of any of claims 1-9.
12. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the method of message transmission according to any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011141712.7A CN114390454A (en) | 2020-10-22 | 2020-10-22 | Message transmission method, system, electronic device and storage medium |
| PCT/CN2021/114800 WO2022083281A1 (en) | 2020-10-22 | 2021-08-26 | Message transmission method and system, electronic device, and storage medium |
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| CN202011141712.7A CN114390454A (en) | 2020-10-22 | 2020-10-22 | Message transmission method, system, electronic device and storage medium |
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| CN202011141712.7A Pending CN114390454A (en) | 2020-10-22 | 2020-10-22 | Message transmission method, system, electronic device and storage medium |
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| EP3804389B1 (en) * | 2018-05-25 | 2023-08-16 | Telefonaktiebolaget LM Ericsson (publ) | Dynamic backup amf determination and publication |
| CN108924772B (en) * | 2018-08-02 | 2021-12-03 | 平安科技（深圳）有限公司 | Short message sending method and device, computer equipment and storage medium |
| CN111417151B (en) * | 2020-03-27 | 2021-10-08 | 广州爱浦路网络技术有限公司 | Method and system for backing up AMF in 5G core network |
| CN111865688B (en) * | 2020-07-20 | 2023-04-18 | 北京百度网讯科技有限公司 | Gateway monitoring method and device, electronic equipment and storage medium |
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