CN117998572A - Method and device for releasing data of MAC (media access control) disorder in high-capacity scene - Google Patents
Method and device for releasing data of MAC (media access control) disorder in high-capacity scene Download PDFInfo
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Abstract
The invention discloses a method and a device for releasing data of MAC disorder in a large-capacity scene, wherein the method comprises the following steps: receiving a deregistration acceptance request sent by a user terminal to a core network, and initiating the deregistration request to the core network; acquiring a deregistration acceptance message generated by a core network according to a deregistration acceptance request; presetting timeout time, and waiting for the user terminal to receive the deregistration acceptance message within the timeout time; if the user terminal does not receive the deregistration acceptance message within the timeout period, the reception timeout is determined, and a deregistration request is reinitiated to the core network, and a release context request is sent to the user terminal. The scheme can avoid the problem that the UE fails to release the context due to the disorder of the MAC time sequence, and can also improve the reliability and stability of the 5G network. Meanwhile, the scheme has the advantages of simplicity, easiness in implementation and the like, and can be widely applied to 5G networks.
Description
Technical Field
The present invention relates to the field of mobile communications technologies, and in particular, to a method and an apparatus for releasing data in a disordered MAC in a high-capacity scenario, a base station communication system, and a readable storage medium.
Background
With the rapid development of 5G networks, the network load and MAC timing control problems in a large-capacity multi-UE (User Equipment) scenario are also increasingly prominent. In a 5G network, a UE needs to perform frequent communication with a base station, including procedures of registration, authentication, data transmission, etc., and these procedures need to be performed under strict MAC timing control. The MAC layer is one of key technologies for implementing radio access, and is responsible for controlling communication timing between a UE and a base station. Under the high-capacity multi-UE scene, the MAC layer needs to face the requests and responses of a plurality of UEs and needs to carry out a complex scheduling algorithm so as to ensure the stability and reliability of the network. Due to the heavy network load, there may be a case that the UE has not received the deregistration accept message, and the base station has issued a release context request, and this process is mainly caused by the occurrence of a disorder of MAC timing. At this time, the release failure of the UE release context may cause abnormal connection state of the UE, and affect the user experience.
In view of this, there is a need to propose an improvement to the current method of data release when MAC timing is staggered in a large capacity multi-UE scenario.
Disclosure of Invention
In order to solve at least one of the above-mentioned problems, a main objective of the present invention is to provide a method and apparatus for releasing data with disordered MAC in a high-capacity scenario.
In order to achieve the above purpose, the invention adopts a technical scheme that: the utility model provides a data release method of the disorder of MAC under the large capacity scene, comprising:
receiving a deregistration acceptance request sent by a user terminal to a core network, and initiating the deregistration request to the core network;
acquiring a deregistration acceptance message generated by a core network according to a deregistration acceptance request;
presetting timeout time, and waiting for the user terminal to receive the deregistration acceptance message within the timeout time;
if the user terminal does not receive the deregistration acceptance message within the timeout period, the reception timeout is determined, and a deregistration request is reinitiated to the core network, and a release context request is sent to the user terminal.
Wherein the waiting for the user terminal to receive the de-registration acceptance message within the timeout period further comprises:
If the user terminal receives the registration-removal acceptance message within the timeout time, acquiring a context release instruction sent by the core network; and
And sending a release context request to the user terminal.
Wherein after sending the context release request to the user terminal, the method further comprises:
and feeding back a context completion message to the core network.
Wherein the size of the timeout is adjusted according to the network load.
In order to achieve the above purpose, another technical scheme adopted by the invention is as follows: provided is a data releasing device of MAC disorder in a high-capacity scene, comprising:
The receiving module is used for receiving a deregistration receiving request sent by the user terminal to the core network and initiating the deregistration request to the core network;
The acquisition module is used for acquiring a deregistration acceptance message generated by the core network according to the deregistration acceptance request;
The timeout judging module is used for presetting timeout time and waiting for the user terminal to receive the registration-removal acceptance message within the timeout time;
And the processing module is used for determining the receiving timeout and reinitiating the deregistration request to the core network and sending the release context request to the user terminal when the user terminal does not receive the deregistration acceptance message within the timeout time.
Wherein, the processing module is further configured to:
acquiring a context release instruction sent by a core network when the user terminal receives the deregistration acceptance message within the timeout time; and
And sending a release context request to the user terminal.
Wherein, still include feedback module for:
and feeding back a context completion message to the core network.
Wherein the size of the timeout is adjusted according to the network load.
In order to achieve the above object, the present invention adopts another technical scheme as follows: there is provided a base station communication system including: the system comprises at least one 5G communication base station and a plurality of user terminals in communication connection with the 5G communication base station, wherein the 5G communication base station comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, and the steps in the method are realized when the processor executes the computer program.
In order to achieve the above object, the present invention adopts another technical scheme as follows: there is provided a readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the above method.
The technical scheme of the invention mainly comprises the steps of firstly receiving a deregistration acceptance request sent by a user terminal to a core network, initiating the deregistration request to the core network, then obtaining a deregistration acceptance message generated by the core network according to the deregistration acceptance request, presetting timeout time, waiting for the user terminal to receive the deregistration acceptance message within the timeout time, finally determining that the user terminal does not receive the deregistration acceptance message within the timeout time, receiving the timeout, initiating the deregistration request to the core network again, and sending a context release request to the user terminal, so that the situation that the release of the context of the UE fails due to the disorder of MAC time sequence can be avoided, and the reliability and the stability of a 5G network can be improved. Meanwhile, the scheme has the advantages of simplicity, easiness in implementation and the like, and can be widely applied to 5G networks.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method for releasing data of MAC disorder in a high-capacity scene according to an embodiment of the invention;
FIG. 2 is a flowchart of a method for releasing data with disordered MAC in a large capacity scenario according to an embodiment of the invention;
FIG. 3 is a flowchart of a normal MAC timing sequence in a data release method of the disordered MAC in a high-capacity scenario according to an embodiment of the invention;
FIG. 4 is a block diagram of a data release device with out-of-order MAC in a high-capacity scenario according to an embodiment of the present invention;
fig. 5 is a block diagram of a base station communication system according to an embodiment of the present invention.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
In a related mobile communication 5G system, under a large-capacity multi-UE scene, due to larger network load, the MAC layer is easy to disorder, release failure of a UE release context can occur, and the connection state of the UE is possibly abnormal, so that user experience is affected. For specific steps of the method for releasing data in disorder of MAC in a large capacity scenario, please refer to the following embodiments.
Referring to fig. 1 and fig. 2, fig. 1 is a flowchart of a method for releasing data with disordered MAC in a high-capacity scenario according to an embodiment of the invention. Fig. 2 is a flowchart of a MAC out-of-order data release method in a high-capacity scenario according to an embodiment of the present invention. In the embodiment of the invention, the data release method of the MAC disorder in the large-capacity scene is applied to a mobile communication 5G system, and the method comprises the following steps:
s110, receiving a deregistration acceptance request sent by the user terminal to the core network, and initiating the deregistration request to the core network.
Specifically, the mobile communication 5G system includes a plurality of user terminals, a base station, and a core network AMF (ACCESS AND Mobility Management Function, access and mobility management functions). The user terminal is connected with the core network through the base station in a wireless way. When the user terminal, the base station and the core network communicate, the communication comprises the processes of registration, authentication, data transmission and the like. The user terminal sends a registration-removing acceptance request to the base station, and the base station receives the registration-removing acceptance request sent by the user terminal and initiates the registration-removing request to the core network.
S120, obtaining a deregistration acceptance message generated by the core network according to the deregistration acceptance request.
Specifically, the core network receives a deregistration acceptance request forwarded by the base station, processes the deregistration acceptance request to generate a deregistration acceptance message, then sends the deregistration acceptance message to the base station, and the base station acquires the deregistration acceptance message.
S130, presetting timeout time, and waiting for the user terminal to receive the deregistration acceptance message within the timeout time.
Specifically, a timeout mechanism may be added before the base station issues the release context request, i.e. a timeout time is set, so as to wait for the UE to receive the deregistration accept message within the timeout time. It is determined whether the user terminal reception area registration message is timed out by the timeout time.
And S140, if the user terminal does not receive the deregistration acceptance message within the timeout time, determining that the reception is timeout, and reinitiating the deregistration request to the core network, and sending a release context request to the user terminal. Specifically, if the UE has not received the deregistration acceptance message after the timeout period arrives, the deregistration request is reinitiated to the core network, and then the release context request is issued. This can avoid the situation that the UE is released without receiving the deregistration accept message. The purpose of the re-initiation of the de-registration request is to ensure that the UE can register normally, and the purpose of releasing the context request is to avoid that the UE is in an unregistered state for a long time.
Referring to fig. 2, fig. 2 is a flowchart of a MAC in disorder in a method for releasing data with disorder MAC in a high-capacity scenario according to an embodiment of the present invention. In a specific example, in the method for releasing data with disordered MAC in the high-capacity scenario, the MAC is in disordered state, including:
1. The user terminal sends uplink information transmission to the base station, carrying de-registration request information ULInformation Transfer (Deregistration request), the signaling terminal (UE) is transmitted to the base station through an air interface, and the carried information is the de-registration request;
2. The base station sends the core network to initiate the uplink non-access layer transmission, carrying the deregistration request information Uplink NAS Transport (Deregistration request), and the signaling base station sends the core network with the deregistration request information;
3. The base station obtains the downlink non-access layer transmission sent by the core network, carries deregistration acceptance information DPLINK NAS Transport (Deregistration accept), the information carried by the signaling is deregistration acceptance, and the core network transmits the information to the base station through the signaling;
4. The base station acquires a terminal (UE) context release command Ue context release command sent by a core network, and the signaling informs the core network of releasing terminal (UE) information;
5. The base station sends RRC RELEASE to the user terminal, the wireless resource connection is released, and the signaling is that the base station transmits the wireless resource connection to the terminal (UE) through an air interface;
6. The base station sends downlink information transmission to the user terminal, carrying de-registration acceptance information DLInformation Transfer (Deregistration accept), the signaling base station transmits the downlink information to the terminal (UE) through an air interface, and the carried information is de-registration acceptance;
7. The base station feeds back to the core network that the release of the terminal (UE) context is complete, ue context release complete, and this signaling informs the base station that the release of the core network terminal (UE) information is complete.
In a specific embodiment, the waiting for the ue to receive the deregistration accept message within the timeout period further includes:
If the user terminal receives the registration-removal acceptance message within the timeout time, acquiring a context release instruction sent by the core network; and
And sending a release context request to the user terminal.
Specifically, when the user terminal receives the registration-removal receiving message within the timeout period, the user terminal indicates that the MAC is in a normal time sequence state, and at the moment, a context release instruction sent by the core network is obtained; and sending a release context request to the user terminal, wherein the release of the UE release context is normal.
Referring to fig. 3, fig. 3 is a flowchart of a normal timing sequence of a MAC in a data release method of a MAC disorder in a high-capacity scenario according to an embodiment of the present invention.
In a specific example, in the method for releasing data with disordered MAC in the high-capacity scenario, the MAC is in disordered state, including:
1. The user terminal sends uplink information transmission to the base station, carrying de-registration request information ULInformation Transfer (Deregistration request), the signaling terminal (UE) is transmitted to the base station through an air interface, and the carried information is the de-registration request;
2. The base station sends the core network to initiate the uplink non-access layer transmission, carrying the deregistration request information Uplink NAS Transport (Deregistration request), and the signaling base station sends the core network with the deregistration request information;
3. The base station obtains the downlink non-access layer transmission sent by the core network, carries the deregistration acceptance information, the information carried by the signaling is the deregistration acceptance, DPLINK NAS Transport (Deregistration accept), and the core network transmits the information to the base station through the signaling;
4. The base station sends downlink information transmission to the user terminal, carrying de-registration acceptance information DLInformation Transfer (Deregistration accept), the signaling base station transmits the downlink information to the terminal (UE) through an air interface, and the carried information is de-registration acceptance;
5. the base station acquires a terminal (UE) context release command Ue context release command sent by a core network, and the signaling informs the core network of releasing terminal (UE) information;
6. The base station sends a wireless resource connection release to the user terminal, RRC RELEASE, and the signaling is that the base station sends the wireless resource connection release to the terminal (UE) through an air interface;
7. The base station feeds back to the core network that the release of the terminal (UE) context is complete, ue context release complete, and this signaling informs the base station that the release of the core network terminal (UE) information is complete.
In a specific embodiment, after the sending the release context request to the user terminal, the method further includes:
and feeding back a context completion message to the core network.
Specifically, the size of the timeout is adjusted according to the network load. And setting timeout time in the base station, wherein the timeout time is used for waiting for the UE to receive the deregistration acceptance message. The timeout may be adjusted according to factors such as network load to achieve the best effect. The adjustment of the timeout needs to be evaluated and adjusted in practical applications to ensure the reliability and stability of the scheme.
Referring to fig. 4, fig. 4 is a block diagram of a MAC-out-of-order data release device in a high-capacity scenario according to an embodiment of the present invention. In an embodiment of the present invention, the device for releasing data with disordered MAC in a high-capacity scenario includes:
a receiving module 10, configured to receive a deregistration acceptance request sent by a user terminal to a core network, and initiate the deregistration request to the core network;
An obtaining module 20, configured to obtain a deregistration acceptance message generated by the core network according to the deregistration acceptance request;
the timeout determination module 30 presets a timeout period and waits for the user terminal to receive the registration acceptance message within the timeout period;
A processing module 40, configured to determine that the reception is timed out and re-initiate a deregistration request to the core network when the user terminal does not receive the deregistration accept message within the timeout period, and send a release context request to the user terminal.
Specifically, the processing module 40 is further configured to:
acquiring a context release instruction sent by a core network when the user terminal receives the deregistration acceptance message within the timeout time; and
And sending a release context request to the user terminal.
Specifically, the device further comprises a feedback module for:
and feeding back a context completion message to the core network.
Specifically, the size of the timeout is adjusted according to the network load.
Referring to fig. 5, fig. 5 is a block diagram illustrating a base station communication system according to an embodiment of the present invention. The base station communication system can be used for realizing the data release method of the MAC disorder in the high-capacity scene in the embodiment. As shown in fig. 5, the base station communication system includes: the system comprises at least one 5G communication base station and a plurality of user terminals in communication connection with the 5G communication base station, wherein the 5G communication base station comprises a memory 301, a processor 302, a bus 303 and a computer program which is stored on the memory 301 and can run on the processor 302, and the memory 301 and the processor 302 are connected through the bus 303. When the processor 302 executes the computer program, the method for releasing data of the MAC disorder in the high-capacity scenario in the foregoing embodiment is implemented. Wherein the number of processors may be one or more.
The memory 301 may be a high-speed random access memory (RAM, random Access Memory) memory or a non-volatile memory (non-volatile memory), such as a disk memory. The memory 301 is used for storing executable program code, and the processor 302 is coupled to the memory 301.
Further, an embodiment of the present application further provides a computer readable storage medium, which may be provided in the base station communication system in each of the foregoing embodiments, and the computer readable storage medium may be a memory in the foregoing embodiment shown in fig. 5.
The computer readable storage medium stores a computer program which, when executed by a processor, implements the method for releasing data of MAC disorder in a high-capacity scenario in the foregoing embodiment. Further, the computer-readable medium may be any medium capable of storing a program code, such as a usb (universal serial bus), a removable hard disk, a Read-Only Memory (ROM), a RAM, a magnetic disk, or an optical disk.
In the several embodiments provided by the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of modules is merely a logical function division, and there may be additional divisions of actual implementation, e.g., multiple modules or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or modules, which may be in electrical, mechanical, or other forms.
The modules illustrated as separate components may or may not be physically separate, and components shown as modules may or may not be physical modules, i.e., may be located in one place, or may be distributed over a plurality of network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional module in the embodiments of the present application may be integrated into one processing module 40, or each module may exist alone physically, or two or more modules may be integrated into one module. The integrated modules may be implemented in hardware or in software functional modules.
The integrated modules, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a readable storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods of the embodiments of the present application. And the aforementioned readable storage medium includes: a usb disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk, etc.
It should be noted that, for the sake of simplicity of description, the foregoing method embodiments are all expressed as a series of combinations of actions, but it should be understood by those skilled in the art that the present application is not limited by the order of actions described, as some steps may be performed in other order or simultaneously in accordance with the present application. Further, those skilled in the art will appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily all required for the present application.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to the related descriptions of other embodiments.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (10)
1. The method for releasing the data of the MAC disorder in the large-capacity scene is characterized by comprising the following steps of:
receiving a deregistration acceptance request sent by a user terminal to a core network, and initiating the deregistration request to the core network;
acquiring a deregistration acceptance message generated by a core network according to a deregistration acceptance request;
presetting timeout time, and waiting for the user terminal to receive the deregistration acceptance message within the timeout time;
if the user terminal does not receive the deregistration acceptance message within the timeout period, the reception timeout is determined, and a deregistration request is reinitiated to the core network, and a release context request is sent to the user terminal.
2. The method for releasing data in the MAC disorder in the high-capacity scenario as claimed in claim 1, wherein waiting for the ue to receive the deregistration accept message within the timeout period further comprises:
If the user terminal receives the registration-removal acceptance message within the timeout time, acquiring a context release instruction sent by the core network; and
And sending a release context request to the user terminal.
3. The method for releasing data in a MAC disorder in a high-capacity scenario according to claim 1 or 2, wherein after the sending of the release context request to the user terminal, further comprises:
and feeding back a context completion message to the core network.
4. The method for releasing data in a MAC disorder in a high-capacity scenario as claimed in claim 1, wherein the size of the timeout period is adjusted according to a network load.
5. The utility model provides a data release device of MAC disorder under large capacity scene which characterized in that, data release device of MAC disorder under large capacity scene includes:
The receiving module is used for receiving a deregistration receiving request sent by the user terminal to the core network and initiating the deregistration request to the core network;
The acquisition module is used for acquiring a deregistration acceptance message generated by the core network according to the deregistration acceptance request;
The timeout judging module is used for presetting timeout time and waiting for the user terminal to receive the registration-removal acceptance message within the timeout time;
And the processing module is used for determining the receiving timeout and reinitiating the deregistration request to the core network and sending the release context request to the user terminal when the user terminal does not receive the deregistration acceptance message within the timeout time.
6. The MAC-out-of-order data release device in a high-capacity scenario of claim 5, wherein the processing module is further configured to:
acquiring a context release instruction sent by a core network when the user terminal receives the deregistration acceptance message within the timeout time; and
And sending a release context request to the user terminal.
7. The method for releasing data in disorder of MAC in high-capacity scenario as claimed in claim 5 or 6, further comprising a feedback module configured to:
and feeding back a context completion message to the core network.
8. The method for releasing data in a MAC disorder in a high-capacity scenario as claimed in claim 5, wherein the size of the timeout period is adjusted according to a network load.
9. A base station communication system, comprising: at least one 5G communication base station and a plurality of user terminals in communication connection with the 5G communication base station, the 5G communication base station comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the steps of the method according to any one of claims 1 to 4 when the processor executes the computer program.
10. A readable storage medium having stored thereon a computer program, which, when executed by a processor, implements the steps of the method of any of claims 1 to 4.
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| US20230362866A1 (en) * | 2022-05-05 | 2023-11-09 | Mediatek Inc. | Nas signaling connection handling for plmn selection |
| CN117336895A (en) * | 2023-09-21 | 2024-01-02 | 成都新基讯通信技术有限公司 | Information sending method and system for user equipment de-registration |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20200008167A1 (en) * | 2018-06-29 | 2020-01-02 | Apple Inc. | 5G New Radio De-Registration Procedures |
| WO2023143422A1 (en) * | 2022-01-27 | 2023-08-03 | 维沃移动通信有限公司 | Disaster roaming control method and apparatus, terminal, and network side device |
| US20230362866A1 (en) * | 2022-05-05 | 2023-11-09 | Mediatek Inc. | Nas signaling connection handling for plmn selection |
| CN117336895A (en) * | 2023-09-21 | 2024-01-02 | 成都新基讯通信技术有限公司 | Information sending method and system for user equipment de-registration |
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