Method and system for preventing signaling storm based on user group in emergency maneuvering networking scene
By grouping users in the emergency maneuver networking scenario and adopting a user group-based location update process, the problems of signaling storms and network congestion are solved, and the stability of the network and user experience are improved.
Patent Information
- Application Number
- CN202410997732.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-24
- Publication Date
- 2025-03-28
AI Technical Summary
In the emergency maneuver networking scenario, due to the rapid changes in the network topology and the location updates of a large number of mobile terminals at the same time, signaling storms, network congestion and equipment paralysis are easily triggered, resulting in service interruption and network paralysis.
By grouping users, a location update process based on user groups is adopted. First, the default terminal initiates a location update request, carrying user group information, and other terminals in the group delay in initiating a location update process. After the network receives the location area update request of the default terminal, it selects unified update or timed update to reduce the location update request initiated at the same time.
It effectively avoids the occurrence of signaling storms, reduces network load, improves network resource utilization, ensures the reliability and timeliness of emergency communications, and enhances user experience.
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Abstract
Description
Technical Field
[0001] The present invention belongs to the field of communication technology, and in particular relates to a method and system for preventing signaling storms based on user groups in an emergency mobile networking scenario. Background Art
[0002] In emergency communication applications, mobile vehicles, such as vehicles, are often used to form a mobile communication network. At this time, a typical networking method is that each vehicle-mounted mobile communication system is a mobile communication network that can work independently (typically composed of a core network and an access network). Each vehicle-mounted mobile communication system manages a specific number of users according to the plan. Vehicles are interconnected through self-organizing networks, and data intercommunication is achieved through the inter-office interface of the core network.
[0003] In this typical application scenario, both vehicles and people are in a moving state, and a large number of mobile terminals often move from the coverage area of one vehicle to the moving range of another vehicle at the same time. At this time, according to the standard mobile communication technology requirements, all mobile terminals whose coverage has changed need to initiate a location update process to the network (typically such as location area update, routing area update, tracking area update, etc.). The simultaneous occurrence of a large number of location update processes is likely to cause a signaling storm, resulting in severe network congestion, inability to provide services for a long time, and even paralysis of network equipment, resulting in the entire network being unable to work normally.
[0004] In the emergency mobile networking scenario, since the emergency communication vehicle and the entire fleet are in rapid motion, the network topology changes rapidly, and a large number of terminals frequently migrate to the core network at the same time, then according to the standard process of the current mobile communication network, all users must immediately initiate a location update process at this time. Since the performance of vehicle-mounted communication equipment is generally very limited, a large number of random access processes that occur at the same time will lead to intensified signaling collisions and affect user access. In addition, a large number of signaling processes at the same time also cause congestion in the signaling processing unit of the vehicle-mounted base station or the vehicle-mounted core network, making it impossible to process the signaling process in a timely manner, and even paralyzing the network.
[0005] In emergency communication applications, a mobile communication network composed of mobile vehicles (such as vehicles) is a typical networking method. However, this networking method faces some technical problems in practical applications, which are analyzed as follows:
[0006] 1. Network topology changes quickly
[0007] Since the emergency communication vehicle and the entire fleet are in rapid motion, the network topology changes very quickly. Such frequent changes lead to the constant re-establishment and adjustment of the ad hoc network connections between vehicles, increasing the complexity of network management and maintenance.
[0008] 2. Simultaneous location updates of a large number of mobile terminals
[0009] When a large number of mobile terminals move from the coverage of one vehicle to the coverage of another vehicle, according to standard mobile communication technology requirements, these terminals need to initiate location update processes (such as location area update, routing area update, tracking area update, etc.) to the network. The simultaneous occurrence of such a large number of location update processes can easily lead to the following problems:
[0010] Signaling storm: A large number of location update requests are initiated at the same time, generating a large amount of signaling data, leading to a signaling storm.
[0011] Network congestion: Signaling storms cause serious network congestion, a large amount of network resources are occupied, and the provision of normal services is affected.
[0012] Equipment paralysis: Excessive signaling data processing pressure causes network equipment (such as the signaling processing unit of the vehicle-mounted base station or vehicle-mounted core network) to be overloaded or even paralyzed.
[0013] 3. Signaling collision during random access
[0014] In a fast-moving convoy, a large number of terminals simultaneously initiate core network migration and location update requests, which leads to increased signaling collisions in the random access process. The specific manifestations are:
[0015] Signaling conflict: Random access requests initiated by a large number of terminals at the same time will cause signaling conflicts, affecting the success rate of user access.
[0016] Access delay: Signaling collision increases access delay and affects user experience.
[0017] 4. Performance limitations of the signaling processing unit
[0018] The performance of vehicle-mounted communication equipment is usually limited. When faced with signaling requests initiated by a large number of terminals at the same time, its signaling processing unit cannot process them in time, resulting in:
[0019] Processing delay: The signaling processing unit has limited processing capacity and cannot respond to a large number of signaling requests in a timely manner.
[0020] Signaling processing unit congestion: Too many signaling requests exceed the device processing capacity, causing signaling processing unit congestion and affecting the overall network performance.
[0021] 5. Reliability and stability issues of the overall network
[0022] Due to signaling storms and equipment performance limitations, the reliability and stability of the entire network are threatened, leading to the following problems:
[0023] Service interruption: Network congestion and equipment failure result in a long period of inability to provide normal services.
[0024] Network paralysis: In severe cases, the entire network equipment is paralyzed, causing the entire communication network to be unable to work properly.
[0025] In summary, the main technical problems existing in the prior art in emergency mobile communication networks include:
[0026] 1. Rapidly changing network topology increases management difficulty.
[0027] 2. A large number of location update processes occur simultaneously, which can easily cause signaling storms and network congestion.
[0028] 3. Signaling collision during random access causes user access delay and reduced success rate.
[0029] 4. The performance limitations of on-board communication equipment lead to congestion and processing delays in the signaling processing unit.
[0030] 5. The reliability and stability of the overall network are threatened, resulting in business interruption and network paralysis.
[0031] These problems are particularly prominent in emergency communication applications, and effective solutions are urgently needed to improve network performance and reliability.
[0032] After searching related topics, no similar patents were found. Summary of the invention
[0033] In view of the problems existing in the prior art, the present invention provides a method for preventing signaling storms based on user groups in an emergency mobile networking scenario.
[0034] The present invention is implemented in this way: a method for preventing signaling storm based on user groups in an emergency mobile networking scenario includes:
[0035] Step 1: Group users. The group ID is notified to the user during initial registration. The terminal carries the user group ID when initiating a location update request.
[0036] Step 2: Due to the movement of the user group, the location area is changed, and the user performs a location update process based on the user group;
[0037] Step 3: When the user group location is updated, a default terminal initiates the update first, and the terminal carries the user group information when initiating the location update; other terminals in the group delay in initiating the location update process;
[0038] Step 4: The network receives the location area update request carrying the user group identifier from the default terminal and replies a location update response to the default terminal;
[0039] Step 5: If the location information of some users in the group changes, the location is updated.
[0040] Further, the network receives a location area update request carrying a user group identifier from a default terminal and replies to the default terminal with a location update response in two processing modes:
[0041] 1) The location area information is updated uniformly for the users of the terminal in the group, and the location information of all users in the group is notified of the change through paging messages. All users in the group that meet the location area update conditions will no longer initiate the location area update process after judgment, and will independently complete the update of relevant location information;
[0042] 2) If the location area information is not updated uniformly for the terminal users in this group, no paging message is sent, and all terminals autonomously initiate the location area update process after the timer expires.
[0043] Another object of the present invention is to provide a system for preventing signaling storms based on user groups in an emergency mobile networking scenario, comprising:
[0044] A grouping module is used to group users. The group identifier is notified to the user during initial registration, and the terminal carries the user group identifier when initiating a location update request;
[0045] The update module is used for the user to perform a location update process based on the user group when the location area changes due to the movement of the user group; when the user group location is updated, it is first initiated by a default terminal, and the terminal carries the user group information when initiating the location update; other terminals in the group delay in initiating the location update process; the network receives the location area update request carrying the user group identifier from the default terminal, and replies with a location update response to the default terminal; the location information of some users in the group changes, and the location is updated.
[0046] Another object of the present invention is to provide a computer device, comprising a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the steps of the method for preventing signaling storms based on user groups in an emergency mobile networking scenario.
[0047] Another object of the present invention is to provide a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, the processor executes the steps of the method for preventing signaling storms based on user groups in an emergency mobile networking scenario.
[0048] Another object of the present invention is to provide an information data processing terminal, which is used to implement the user group-based signaling storm prevention system in an emergency mobile networking scenario.
[0049] In combination with the above technical solutions and the technical problems solved, the advantages and positive effects of the technical solutions to be protected by the present invention are as follows:
[0050] First, the present invention aims at the special situation of emergency mobile networking scene, improves the existing location update process, adds the location update of emergency user group, thereby avoiding signaling storm in the above emergency mobile networking scene, and preventing network congestion and paralysis. (Effect).
[0051] The present invention groups users and adds a location area update process based on emergency user groups on the basis of the existing location update process, thereby preventing a large number of concentrated location area update processes caused by rapid movement of vehicles and rapid changes in network topology, avoiding signaling storms in emergency mobile networking scenarios, enhancing network robustness, and improving user perception.
[0052] Second, the technical solution of the present invention fills the technical gap in the industry at home and abroad:
[0053] The problem solved by the present invention is that, for emergency mobile networking applications, problems such as network failure and paralysis caused by such applications in a more complex application environment can be avoided, thus filling the gap in the relevant technology.
[0054] Third, the existing emergency mobile networking system is prone to signaling storms when processing large-scale user movement and location updates, resulting in network overload and reduced communication quality. In this case, a large number of users initiate location update requests at the same time, resulting in network resource exhaustion and inability to effectively support emergency communication needs.
[0055] The present invention proposes a method for preventing signaling storm based on user groups, which solves the above technical problems through the following steps:
[0056] 1) User grouping: Users are grouped and the user group identifier is notified during initial registration. The terminal carries the user group identifier when initiating a location update request.
[0057] 2) Location update process: When the user group moves and the location area changes, a default terminal first initiates a location update request, carrying the user group information, and other terminals in the group delay in initiating the location update process.
[0058] 3) Network response: The network receives the location area update request of the default terminal and replies with a location update response to the default terminal. The specific processing methods include:
[0059] 1) Update location area information uniformly: Update location area information uniformly for users of the group terminals, and notify all users in the group of location information changes through paging messages. All users in the group that meet the location area update conditions will no longer initiate the location area update process after judgment, and will independently complete the update of relevant location information.
[0060] 2) No unified update of location area information: No paging message is sent, and all terminals independently initiate the location area update process after the timer expires.
[0061] 4) User location update: When the location information of some users in the group changes, the location is updated.
[0062] Through the above technical solution, the present invention has achieved significant technical progress, which is specifically reflected in the following aspects:
[0063] 1) Prevent signaling storms: By using grouping and delayed update methods, the number of location update requests initiated simultaneously is effectively reduced, thus avoiding the occurrence of signaling storms and reducing network load.
[0064] 2) Improve network resource utilization: By combining unified update of location area information with autonomous update, the utilization efficiency of network resources is improved, ensuring the reliability and timeliness of emergency communications.
[0065] 3) Flexible response to various scenarios: The system can choose different processing methods according to actual needs. It can not only uniformly update the location area information, but also flexibly handle it through the timer mechanism to adapt to different emergency scenarios.
[0066] 4) Enhanced user experience: By reducing unnecessary location update requests, user terminals can communicate more efficiently, improving the overall user experience, especially in emergency situations, ensuring smooth critical communications. BRIEF DESCRIPTION OF THE DRAWINGS
[0067] Figure 1 It is a flow chart of a method for preventing signaling storm based on user groups in an emergency mobile networking scenario provided by an embodiment of the present invention.
[0068] Figure 2 It is a structural block diagram of a system for preventing signaling storms based on user groups in an emergency mobile networking scenario provided by an embodiment of the present invention.
[0069] Figure 3 This is a flow chart provided by an embodiment of the present invention when a group of existing terminals change their location areas at the same time.
[0070] Figure 4 It is a flowchart of an existing location area update provided by an embodiment of the present invention.
[0071] Figure 5 This is a typical flow chart of location area update based on user groups provided by an embodiment of the present invention.
[0072] Figure 6 It is a specific test solution architecture diagram provided by an embodiment of the present invention. DETAILED DESCRIPTION
[0073] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0074] Example 1: Urban emergency communication network based on user groups
[0075] In a city's emergency communication network, users are divided into different user groups, each of which consists of a group of emergency service personnel (such as firefighters, police, and medical staff). In order to prevent large-scale signaling storms in emergency situations, a method based on user groups to prevent signaling storms is adopted.
[0076] 1) User grouping: During initial registration, the system assigns all emergency service personnel to different user groups, each with a unique group ID. The terminal device carries the group ID when initiating a location update request.
[0077] 2) Location update process: When a user group moves to a new location area, a default terminal first initiates a location update request, carrying the user group information. Other terminals in the group delay in initiating the location update process.
[0078] 3) Network response: The network receives the location area update request carrying the user group identifier from the default terminal, replies with a location update response to the default terminal, and uniformly updates the location information of all users in the group.
[0079] 4) User location update: In some cases, if the location of some users in the group changes, they can update their location individually without the need for the entire group to update.
[0080] Example 2: Emergency communication network for post-disaster reconstruction
[0081] During the post-disaster reconstruction process, the emergency communication network needs to support the communication needs of a large number of rescue teams. To avoid network overload, the system adopts a user group-based method to prevent signaling storms.
[0082] 1) User grouping: Each rescue team is divided into a user group. During initial registration, the system notifies each team of the group ID. Each terminal device carries the group ID when initiating a location update request.
[0083] 2) Location update process: When the rescue team moves in the disaster area, if the location area changes, a default terminal first initiates a location update request and carries the user group information. Other terminal devices initiate location update requests after a certain delay.
[0084] 3) Network response: After the network system receives the location area update request from the default terminal, there are two processing methods:
[0085] 1. Unified update: Update the location area information of all terminals in the group uniformly, and notify all users in the group of location information changes through paging messages. Qualified terminal devices will no longer initiate location area updates and complete location information updates autonomously.
[0086] 2. Scheduled update: The location area information is not updated uniformly for the terminals in this group. All terminal devices initiate the location area update process autonomously after the timer expires.
[0087] 4) User location update: When the location information of some rescuers in the group changes, they can update their location individually without the need for the entire team to update their location.
[0088] like Figure 1 As shown, a method for preventing signaling storm based on user groups in an emergency mobile networking scenario provided by an embodiment of the present invention includes the following steps:
[0089] S101, grouping users, notifying the users of the group identifiers during initial registration, and the terminals carrying the user group identifiers when initiating location update requests;
[0090] S102, due to the movement of the user group, the location area is changed, and the user performs a location update process based on the user group;
[0091] S103, when the user group location is updated, a default terminal initiates the update first, and the terminal carries the user group information when initiating the location update; other terminals in the group delay in initiating the location update process;
[0092] S104, the network receives a location area update request carrying a user group identifier from the default terminal, and replies a location update response to the default terminal;
[0093] S105: The location information of some users in the group changes, and the location is updated.
[0094] The network provided in the embodiment of the present invention receives a location area update request carrying a user group identifier from a default terminal, and replies to the default terminal with a location update response in two processing modes:
[0095] 1) The location area information is updated uniformly for the users of the terminal in the group, and the location information of all users in the group is notified of the change through paging messages. All users in the group that meet the location area update conditions will no longer initiate the location area update process after judgment, and will independently complete the update of relevant location information;
[0096] 2) If the location area information is not updated uniformly for the terminal users in this group, no paging message is sent, and all terminals autonomously initiate the location area update process after the timer expires.
[0097] like Figure 2As shown, a system for preventing signaling storm based on user groups in an emergency mobile networking scenario provided by an embodiment of the present invention includes:
[0098] A grouping module is used to group users. The group identifier is notified to the user during initial registration, and the terminal carries the user group identifier when initiating a location update request;
[0099] The update module is used for the user to perform a location update process based on the user group when the location area changes due to the movement of the user group; when the user group location is updated, it is first initiated by a default terminal, and the terminal carries the user group information when initiating the location update; other terminals in the group delay in initiating the location update process; the network receives the location area update request carrying the user group identifier from the default terminal, and replies with a location update response to the default terminal; the location information of some users in the group changes, and the location is updated.
[0100] Another object of the present invention is to provide a computer device, comprising a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the steps of the method for preventing signaling storms based on user groups in an emergency mobile networking scenario.
[0101] Another object of the present invention is to provide a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, the processor executes the steps of the method for preventing signaling storms based on user groups in an emergency mobile networking scenario.
[0102] Another object of the present invention is to provide an information data processing terminal, which is used to implement the user group-based signaling storm prevention system in an emergency mobile networking scenario.
[0103] The present invention is specifically implemented:
[0104] According to existing technical standards, once a user migrates to a core network, a location update process (typically location area update, routing area update, tracking area update, etc.) must be initiated immediately. The general process is as follows:
[0105] The terminal migrates to a new cell and obtains the location information of the new cell through system information or handover signaling.
[0106] The terminal determines whether the location information has changed. If so, it initiates a location update request. If the terminal is in an idle state, it first initiates a random access process.
[0107] After receiving the location update request, the network authenticates / authorizes the user (optional), then updates the location information and sends a location update response.
[0108] After receiving the location update response, the terminal updates its location and sends a confirmation message back to the network, and the process ends.
[0109] Figure 3 The process when a group of terminals change their location areas at the same time
[0110] Figure 4 Existing location area update process
[0111] 3. Objectively evaluate the shortcomings of the prior art (which should correspond to the technical features of the present invention);
[0112] In the emergency mobile networking scenario, since the emergency communication vehicle and the entire fleet are in rapid motion, the network topology changes rapidly, and a large number of terminals frequently migrate to the core network at the same time, then according to the standard process of the current mobile communication network, all users must immediately initiate a location update process at this time. Since the performance of vehicle-mounted communication equipment is generally very limited, a large number of random access processes that occur at the same time will lead to intensified signaling collisions and affect user access. In addition, a large number of signaling processes at the same time also cause congestion in the signaling processing unit of the vehicle-mounted base station or the vehicle-mounted core network, making it impossible to process the signaling process in a timely manner, and even paralyzing the network.
[0113] Therefore, the location update process of the existing mobile communication system is not suitable for emergency mobile networking scenarios and needs to be optimized. This technology groups users and adds a location area update process based on emergency user groups on the basis of the existing location update process to prevent a large number of concentrated location area update processes caused by rapid vehicle movement and rapid changes in network topology, thereby avoiding signaling storms in emergency mobile networking scenarios, enhancing network robustness, and improving user perception.
[0114] The detailed description of the technical solution of the present invention should be explained in combination with flow charts, block diagrams, circuit diagrams, timing diagrams, etc. (unless it is really impossible to provide drawings);
[0115] The present invention aims at the defects of the prior art solutions, and the main improvements are as follows:
[0116] 1. First, users are grouped. The group ID is notified to the user during initial registration. The terminal carries the user group ID when initiating a location update request.
[0117] 2. Due to the movement of the user group, the location area has changed, and the users in this group need to perform a location update process based on the user group.
[0118] 3. When the user group location is updated, the default terminal initiates it first (a typical default terminal notification scheme is as follows: the network explicitly or implicitly notifies the terminal through the initial registration process). This terminal carries the user group information when initiating the location update; other terminals in the group delay initiating the location update process (the delay time can be dynamically configured by the network, or it can be constrained to a certain value by the protocol).
[0119] 4. When the network receives the location area update request with the user group identifier from the default terminal and replies to the default terminal with a location update response, it can choose two processing methods:
[0120] 1) Update the location area information uniformly for the users of the group of terminals (except the default terminal) (for example, all users use the same security algorithm and parameters or the terminal does not need to update the security parameters), and notify all users in the group of the location information change through a paging message (carrying the user group identifier and the new location information identifier). All users in the group that meet the location area update conditions will no longer initiate the location area update process and will autonomously complete the update of the relevant location information.
[0121] 2) The location area information of the group of terminal users is not updated uniformly (for example, the scenario where the terminal needs to update security parameters). In this case, no paging message is sent, and all terminals (except the default terminal) autonomously initiate the location area update process after the timer expires.
[0122] 5. In some special cases, only some users in the group have their location information changed. The process of location update can be divided into two cases:
[0123] 1) If the default terminal of the user group has not had its location area changed, other terminals that have had their location areas changed will autonomously initiate a location area update process using an existing mechanism after the delay time has expired.
[0124] 2) The location area of the default terminal of the user group has changed, but some terminals in the group have not changed. According to the above step 4, after receiving the paging message of the user group location change notification, these terminals that have not changed their location areas use the existing mechanism to autonomously re-initiate the periodic location area update process and notify the network to restore to the original location area.
[0125] Figure 5 Typical process of location area update based on user group
[0126] 5. What are the key points and protected points of the present invention?
[0127] 1. Add an emergency user group ID. The group ID needs to be notified to all users in the group by the network during the initial registration process. The network needs to maintain the relationship between the group ID and group members.
[0128] 2. The location update process based on the user group is as follows:
[0129] (1) When a user group updates its location, a default terminal initiates the update first (a typical default terminal notification scheme is: the network explicitly or implicitly notifies the terminal through the initial registration process). This terminal carries the user group information when initiating the location update. Other terminals in the group delay initiating the location update process (the delay time can be dynamically configured by the network or constrained to a certain value by the protocol).
[0130] (2) When the network receives a location area update request carrying a user group identifier from a default terminal and replies to the default terminal with a location update response, it can choose two processing methods:
[0131] 1) Update the location area information uniformly for the users of the group of terminals (except the default terminal) (for example, all users use the same security algorithm and parameters or the terminal does not need to update the security parameters), and notify all users in the group of the location information change through a paging message (carrying the user group identifier and the new location information identifier). All users in the group that meet the location area update conditions will no longer initiate the location area update process and will autonomously complete the update of the relevant location information.
[0132] 2) The location area information of the group of terminal users is not updated uniformly (for example, the scenario where the terminal needs to update security parameters). In this case, no paging message is sent, and all terminals (except the default terminal) autonomously initiate the location area update process after the timer expires.
[0133] (3) In some special cases, only some users in the group have their location information changed. The process of location update can be divided into two cases:
[0134] 3) If the default terminal of the user group has not had its location area changed, other terminals that have had their location areas changed will autonomously initiate a location area update process using an existing mechanism after the delay time has expired.
[0135] 4) If the default terminal of the user group has a location area change, but some terminals in the group have not changed, then according to the above steps, after receiving the paging message of the user group location change notification, these terminals that have not changed their location areas will use the existing mechanism to autonomously re-initiate the periodic location area update process and notify the network to restore to the original location area.
[0136] 3. During the initial registration process, a terminal in the group is notified as the default terminal in an explicit or implicit manner.
[0137] 4. Add an optional parameter in the location area update request message initiated by the terminal: the user group identifier, which needs to be carried when the default terminal initiates a location area update based on the user group.
[0138] 5. The network notifies all terminals in the group of the duration of the delay timer T through the initial registration process or the value agreed upon by the protocol.
[0139] 6. Add a new paging reason in the paging message: "User group location area update".
[0140] The present invention can be implemented by appropriately modifying the protocol under the existing mobile communication technology system. This article takes LTE technology as an example to illustrate the modification scheme and the implementation effect.
[0141] Modify the 3GPP24.301 protocol:
[0142] 1. Add the user group identifier and default terminal indication in the ATTACH ACCEPT message, and add the identifier of the IE in the message, as shown in Table 1. At the same time, it is clear in the protocol that when the UE receives the IE
[0143] "UE Group identity" stores this information as a user group identifier. If "Default UEindicator" exists, the UE is the default terminal.
[0144] 2. Add the user group identifier in the TRACKING AREA UPDATE REQUEST message, as shown in Table 2. At the same time, it is specified in the protocol that when the UE initiates the tracking area update process, it is judged according to the following logic.
[0145] Determine whether a user group identifier exists
[0146] i. If it exists, and the UE is the default terminal, the message carries the IE "UE Groupidentity";
[0147] ii. If it exists, but the UE is not the default terminal, then start the timer T, the duration of which is within the protocol constraints, for example, 5s.
[0148] iii. If it does not exist, the UE executes according to the existing protocol
[0149] Modify the 3GPP36.331 protocol, add IE "UEGroupIdentity" in the Paging message, and add instructions. If the paging message carries IE "UEGroupIdentity" and it is consistent with the user group identifier stored locally in the UE, the UE will no longer initiate the tracking area update process and directly update the tracking area information.
[0150] Table 1 Modified ATTACH ACCEPT message
[0151]
[0152] Table 2 Modified TRACKING AREA UPDATE REQUEST
[0153]
[0154] Table 3 Modified Paging message
[0155]
[0156] The above solution was tested through simulated terminals and networks, mainly simulating the relevant signaling in the RRC protocol and NAS protocol.
[0157] Specific test plans include Figure 6 As shown:
[0158] In the simulation test, the simulated terminal simulates the scenario of location area change. Through the system clock, all simulated terminals simulate location area change at the same time. Then, when there is no existing solution and this solution, the CPU occupancy rate of EPC and eNB is simulated to reflect the congestion of the network. In this test solution, the simulated EPC and eNB software are installed on one computer, and all simulated terminals are installed on another computer. The test results are as follows:
[0159] Table 4 Test results
[0160]
[0161] Based on the test results, it can be clearly seen that this method significantly reduces the network load in various situations. In particular, when a large number of terminals are changing the tracking area at the same time, the network load of this method does not increase significantly. At the same time, the delay time is more appropriate when set to 1 or 2. If the value is too small, it increases the probability of non-default terminals initiating tracking area updates, thereby increasing the network load.
[0162] It should be noted that the embodiments of the present invention can be implemented by hardware, software, or a combination of software and hardware. The hardware part can be implemented using dedicated logic; the software part can be stored in a memory and executed by an appropriate instruction execution system, such as a microprocessor or dedicated design hardware. A person of ordinary skill in the art will appreciate that the above-mentioned devices and methods can be implemented using computer executable instructions and / or contained in a processor control code, such as a carrier medium such as a disk, CD or DVDROM, a programmable memory such as a read-only memory (firmware), or a data carrier such as an optical or electronic signal carrier. Such code is provided on the carrier medium. The device and its modules of the present invention can be implemented by hardware circuits such as very large-scale integrated circuits or gate arrays, semiconductors such as logic chips, transistors, etc., or programmable hardware devices such as field programmable gate arrays, programmable logic devices, etc., can also be implemented by software executed by various types of processors, and can also be implemented by a combination of the above-mentioned hardware circuits and software, such as firmware.
[0163] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any modifications, equivalent substitutions and improvements made by any technician familiar with the technical field within the technical scope disclosed by the present invention and within the spirit and principle of the present invention should be covered by the protection scope of the present invention.
Claims
1. A method for preventing signaling storm based on user groups in emergency mobile networking scenarios, characterized in that: The following steps are involved: Step 1: Group users. The group ID is notified to the user during initial registration. The terminal carries the user group ID when initiating a location update request. Step 2: Due to the movement of the user group, the location area is changed, and the user performs a location update process based on the user group; Step 3: When the user group location is updated, a default terminal initiates the update first, and the terminal carries the user group information when initiating the location update; other terminals in the group delay in initiating the location update process; Step 4: The network receives the location area update request carrying the user group identifier from the default terminal and replies a location update response to the default terminal; Step 5: If the location information of some users in the group changes, the location is updated.
2. The method for preventing signaling storm based on user groups in an emergency mobile networking scenario as claimed in claim 1, characterized in that: The network receives a location area update request carrying a user group identifier from a default terminal and replies to the default terminal with a location update response in two processing modes: 1) The location area information is updated uniformly for the users of the terminal in the group, and the location information of all users in the group is notified of the change through paging messages. All users in the group that meet the location area update conditions will no longer initiate the location area update process after judgment, and will independently complete the update of relevant location information; 2) If the location area information is not updated uniformly for the terminal users in this group, no paging message is sent, and all terminals autonomously initiate the location area update process after the timer expires.
3. A system for preventing signaling storms based on user groups in an emergency mobile networking scenario, which implements the method as claimed in any one of claims 1 to 2, characterized in that: The signaling storm prevention system based on user groups in the emergency mobile networking scenario includes: A user grouping module, used to group users and notify users of group identification during initial registration; A location update request module, where the terminal is used to carry a user group identifier when initiating a location update request; A location update response module, the network is used to receive a location area update request carrying a user group identifier from a default terminal, and reply a location update response to the default terminal; The user location update module is used to update the location when the location information of some users in the group changes.
4. The signaling storm prevention system according to claim 3, characterized in that: The location update response module further comprises: The location area information updating submodule is used to uniformly update the location area information of the users of the terminal in the group and notify all users in the group of location information changes through paging messages; The autonomous updating submodule is used for all users in the group that meet the location area updating conditions to determine not to initiate the location area updating process after receiving the paging message, and to autonomously complete the updating of the relevant location information.
5. The signaling storm prevention system according to claim 3, characterized in that: The location update response module further comprises: The location area information non-update submodule is used for not updating the location area information of the group of terminal users uniformly, and then not sending a paging message; The timer module is used for all terminals to autonomously initiate the location area update process after the timer expires.
6. A computer device, characterized in that: The computer device includes a memory and a processor, the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the steps of the method for preventing signaling storms based on user groups in an emergency mobile networking scenario as described in any one of claims 1 to 2.
7. A computer-readable storage medium storing a computer program, wherein when the computer program is executed by a processor, the processor executes the steps of the method for preventing signaling storms based on user groups in an emergency mobile networking scenario as described in any one of claims 1 to 2.
8. An information data processing terminal, characterized in that: The information data processing terminal is used to implement the signaling storm prevention system based on user groups in the emergency mobile networking scenario as described in claim 3.