CN110602744B - Method and device for congestion control of Internet of things, storage medium and electronic equipment - Google Patents

Method and device for congestion control of Internet of things, storage medium and electronic equipment Download PDF

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CN110602744B
CN110602744B CN201910843556.XA CN201910843556A CN110602744B CN 110602744 B CN110602744 B CN 110602744B CN 201910843556 A CN201910843556 A CN 201910843556A CN 110602744 B CN110602744 B CN 110602744B
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layer
terminal
target layer
target
things
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CN110602744A (en
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陈扬
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Nanjing Dayu Semiconductor Co ltd
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Nanjing Dayu Semiconductor Co ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0289—Congestion control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/18—Management of setup rejection or failure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]

Abstract

The utility model relates to a method, a device, a storage medium and an electronic device for controlling the congestion of the internet of things, which relate to the technical field of wireless communication, wherein the method is applied to a terminal and comprises the following steps: when executing a designation process, determining the priority level of each target layer in a plurality of target layers according to the subscription information of the terminal and the current network state, wherein the designation process comprises the following steps: and in the attachment process or the TAU process, initiating an access request to a target layer of the Internet of things, receiving rejection information, wherein the rejection information is an Internet of things rejection terminal, or starting a timer corresponding to the target layer according to the rejection information according to information sent to the terminal according to the priority level of the target layer when the terminal is released, and repeating the steps of initiating the access request to the target layer of the Internet of things until the timer corresponding to the target layer is started according to the rejection information after the timer corresponding to the target layer is overtime until the target layer is accessed. And congestion control is performed according to different layers, so that the flexibility of congestion control is improved, and the probability of successful access of the terminal to the Internet of things is improved.

Description

Method and device for congestion control of Internet of things, storage medium and electronic equipment
Technical Field
The present disclosure relates to the field of wireless communication technologies, and in particular, to a method and an apparatus for controlling congestion of an internet of things, a storage medium, and an electronic device.
Background
With the continuous development of mobile Communication technology, people and Things, and everything interconnected networks between Things and Things begin to be continuously integrated into people's lives, especially in recent years, the continuous development of technologies such as NB-IoT (english: Narrow Band-Internet of Things, chinese: narrowband Internet of Things), EMTC (english: Enhanced Machine-Type Communication, chinese: Enhanced Internet of Things), MMTC (chinese: Massive Machine-Type Communication, chinese: Massive Internet of Things) and the like makes Internet of Things begin to be widely applied. When the terminal device accesses the internet of things, congestion control is required to ensure that as many terminal devices as possible can smoothly access the internet of things. Generally, a low priority and a high priority are set only in an NAS (Non-Access stratum, Chinese: Non-Access stratum), the low priority performs congestion control on a terminal, the high priority does not use the congestion control, the terminal directly accesses the Internet of things, and when a large number of terminal devices need to access the Internet of things, the flexibility of congestion control is low, so that the success rate of accessing the terminal to the Internet of things is low.
Disclosure of Invention
The invention aims to provide a method and a device for congestion control of the Internet of things, a storage medium and electronic equipment, which are used for solving the problems that the congestion control flexibility is low and the success rate of accessing a terminal to the Internet of things is low in the prior art.
In order to achieve the above object, according to a first aspect of the embodiments of the present disclosure, there is provided a method for controlling congestion of an internet of things, which is applied to a terminal, the method including:
when executing a designation process, determining the priority level of each target layer in a plurality of target layers according to the subscription information of the terminal and the current network state, wherein the designation process comprises the following steps: an attach procedure or a tracking area update TAU procedure;
initiating an access request to the target layer of the Internet of things;
receiving rejection information, wherein the rejection information is information sent to the terminal according to the priority level of the target layer when the terminal is rejected by the internet of things or released;
starting a timer corresponding to the target layer according to the rejection information;
and after the timer corresponding to the target layer is overtime, the step of initiating an access request to the target layer of the Internet of things to start the timer corresponding to the target layer according to the rejection information is repeatedly executed until the target layer is accessed.
Optionally, the target layer is a radio resource control RRC layer, the access request is a link establishment request, and before initiating the access request to the target layer of the internet of things, the method further includes:
receiving the corresponding relation between the priority level of the Internet of things through system information broadcasting and the timing duration;
determining the default timing duration of the RRC layer according to the corresponding relation and the priority level of the RRC layer;
the starting the timer corresponding to the target layer according to the rejection information includes:
if the rejection information comprises a target timing duration, controlling a timer corresponding to the RRC layer to time according to the target timing duration, wherein the target timing duration is a duration determined by the Internet of things according to the priority level of the RRC layer;
and if the rejection information does not comprise the target timing duration, controlling a timer corresponding to the RRC layer to time according to the default timing duration.
Optionally, the target layer is a MM layer or a CM layer, if the target layer is the MM layer, the access request is any one of an attach request, a TAU request, and a service request, and if the target layer is the CM layer, the access request is a bearer activation request or a flow modification request;
the starting the timer corresponding to the target layer according to the rejection information includes:
if the rejection information comprises a target timing duration, controlling a timer corresponding to the target layer to time according to the target timing duration, wherein the target timing duration is a duration determined by the Internet of things according to the priority level of the target layer;
if the rejection information does not comprise the target timing duration, determining a default timing duration corresponding to the target layer according to a preset rule;
and controlling a timer corresponding to the target layer to time according to the default timing duration.
Optionally, the bearer activation request includes a priority level of a service layer, and after accessing the CM layer, the method further includes:
receiving service timing duration and service quantity which are sent by the Internet of things and correspond to the service layer, wherein the service timing duration and the service quantity are determined by the Internet of things according to the priority level of the service layer;
and controlling a timer corresponding to the service layer to time according to the service timing duration so as to send the data packets of the service quantity to the service layer within the service timing duration.
According to a second aspect of the embodiments of the present disclosure, there is provided a method for congestion control of an internet of things, which is applied to the internet of things, and the method includes:
when a terminal executes a designation process, determining the priority level of each target layer in a plurality of target layers of the terminal according to subscription information of the terminal and the current network state, wherein the designation process comprises the following steps: an attach procedure or a tracking area update TAU procedure;
receiving an access request initiated by the terminal to the target layer;
and if the current network state meets the preset condition, rejecting the terminal, or releasing the terminal, and sending rejection information to the terminal according to the priority level of the target layer, so that the terminal starts a timer corresponding to the target layer according to the rejection information, and repeatedly executing the access request initiated to the target layer after the timer corresponding to the target layer is overtime.
Optionally, the target layer is any one of a radio resource control RRC layer, a mobility management MM layer, and a connection management CM layer, if the target layer is the RRC layer, the access request is a link establishment request, if the target layer is the MM layer, the access request is any one of an attach request, a TAU request, and a service request, and if the target layer is the CM layer, the access request is a bearer activation request or a procedure modification request;
the sending rejection information to the terminal according to the priority level of the target layer includes:
determining a target timing duration according to the priority level of the target layer;
and sending the rejection information comprising the target timing duration to the terminal.
Optionally, if the target layer is an RRC layer, before the receiving the access request initiated by the terminal to the target layer, the method further includes:
and determining the default timing duration of the RRC layer by the terminal according to the corresponding relation and the priority of the RRC layer through the corresponding relation between the priority of system information broadcast and the timing duration.
Optionally, the bearer activation request includes a priority level of a service layer, and after the terminal accesses the CM layer, the method further includes:
determining the service timing duration and the service quantity corresponding to the service layer according to the priority level of the service layer;
and sending the service timing duration and the service quantity to the terminal so that the terminal controls a timer corresponding to the service layer to time according to the service timing duration, and sending data packets of the service quantity to the service layer within the service timing duration.
According to a third aspect of the embodiments of the present disclosure, there is provided an apparatus for congestion control of an internet of things, which is applied to a terminal, the apparatus including:
a first determining module, configured to determine, when performing a specifying process, a priority level of each of a plurality of target layers according to subscription information of the terminal and a current network state, where the specifying process includes: an attach procedure or a tracking area update TAU procedure;
the request module is used for initiating an access request to the target layer of the Internet of things;
the first receiving module is used for receiving rejection information, wherein the rejection information is information sent to the terminal according to the priority level of the target layer when the terminal is rejected by the internet of things or released;
the starting module is used for starting a timer corresponding to the target layer according to the rejection information;
and after the timer corresponding to the target layer is overtime, the step of initiating an access request to the target layer of the Internet of things to start the timer corresponding to the target layer according to the rejection information is repeatedly executed until the target layer is accessed.
According to a fourth aspect of the embodiments of the present disclosure, there is provided an apparatus for congestion control of an internet of things, which is applied to the internet of things, the apparatus including:
a first determining module, configured to determine, when a terminal executes a specifying process, a priority level of each of a plurality of target layers of the terminal according to subscription information of the terminal and a current network state, where the specifying process includes: an attach procedure or a tracking area update TAU procedure;
a receiving module, configured to receive an access request initiated by the terminal to the target layer;
and the control module is used for rejecting the terminal or releasing the terminal if the current network state meets a preset condition, and sending rejection information to the terminal according to the priority level of the target layer, so that the terminal starts a timer corresponding to the target layer according to the rejection information, and repeatedly executing the initiation of an access request to the target layer after the timer corresponding to the target layer is overtime.
According to a fifth aspect of embodiments of the present disclosure, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the method of the first aspect of embodiments of the present disclosure.
According to a sixth aspect of embodiments of the present disclosure, there is provided a computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the method of the second aspect of embodiments of the present disclosure.
According to a seventh aspect of the embodiments of the present disclosure, there is provided an electronic apparatus including:
a memory having a computer program stored thereon;
a processor for executing the computer program in the memory to implement the steps of the method of the first aspect of an embodiment of the disclosure.
According to an eighth aspect of embodiments of the present disclosure, there is provided an electronic apparatus including:
a memory having a computer program stored thereon;
a processor for executing the computer program in the memory to implement the steps of the method of the second aspect of the embodiments of the present disclosure.
According to the technical scheme, when the terminal executes an attachment process or a TAU process, the priority level of each target layer in a plurality of target layers is determined according to the subscription information and the current network state of the terminal, then the terminal initiates an access request to the target layer of the Internet of things, if the Internet of things rejects the terminal or releases the terminal, rejection information is sent to the terminal according to the priority level of the target layer, the terminal starts a timer corresponding to the target layer according to the received rejection information, and after the timer corresponding to the target layer is overtime, the terminal repeatedly initiates the access request to the target layer of the Internet of things until the target layer is accessed. According to the method and the device, when the terminal accesses the Internet of things, congestion control is performed according to different layers, so that the flexibility of congestion control is improved, and the probability of successful access of the terminal to the Internet of things can be improved.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
fig. 1 is a flow chart illustrating a method of congestion control for the internet of things, according to an example embodiment;
fig. 2 is a flow chart illustrating another method of congestion control for the internet of things according to an example embodiment;
fig. 3 is a flow chart illustrating another method of congestion control for the internet of things according to an example embodiment;
fig. 4 is a flow chart illustrating another method of congestion control for the internet of things, according to an example embodiment;
fig. 5 is a flow chart illustrating a method of congestion control for the internet of things, according to an example embodiment;
fig. 6 is a flow chart illustrating another method of congestion control for the internet of things according to an example embodiment;
fig. 7 is a flow chart illustrating another method of congestion control for the internet of things according to an example embodiment;
fig. 8 is a flow chart illustrating another method of internet of things congestion control according to an example embodiment;
fig. 9 is a block diagram illustrating an apparatus for congestion control of the internet of things according to an example embodiment;
fig. 10 is a block diagram illustrating another apparatus for internet of things congestion control according to an example embodiment;
fig. 11 is a block diagram illustrating another apparatus for congestion control of the internet of things according to an example embodiment;
fig. 12 is a block diagram illustrating an apparatus for congestion control of the internet of things, according to an example embodiment;
fig. 13 is a block diagram illustrating another apparatus for internet of things congestion control according to an example embodiment;
fig. 14 is a block diagram illustrating another apparatus for internet of things congestion control according to an example embodiment;
FIG. 15 is a block diagram illustrating an electronic device in accordance with an exemplary embodiment;
FIG. 16 is a block diagram illustrating an electronic device in accordance with an example embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
Before introducing the method, the apparatus, the storage medium, and the electronic device for controlling congestion of the internet of things provided by the present disclosure, an application scenario related to various embodiments of the present disclosure is first introduced. The application scene can be any one of the Internet of things such as NB-IOT, EMTC or MMTC. The terminal may be a mobile terminal such as a smart phone, a tablet computer, a smart television, a smart watch, a PDA (english: Personal Digital Assistant, chinese: Personal Digital Assistant), a portable computer, or a smart home device, for example: the floor sweeping robot comprises a floor sweeping robot, an air purifier, an air conditioner, a lighting lamp, a sound box, a robot and the like.
Fig. 1 is a flowchart illustrating a method for controlling congestion of an internet of things according to an exemplary embodiment, where the method is applied to a terminal, and includes the following steps:
step 101, when executing a designation process, determining a priority level of each target layer in a plurality of target layers according to subscription information of a terminal and a current network state, wherein the designation process comprises: an attach procedure or a tracking area update TAU procedure.
For example, when the terminal is connected to the internet of things, the side of the internet of things is divided into a plurality of target layers, and the terminal needs to be connected to the plurality of target layers respectively to perform data interaction with the internet of things. The target layer may include an RRC (radio resource Control, chinese) layer, an MM (Mobility Management, chinese) layer, and a CM (Connection Management, chinese) layer. The RRC layer is deployed on a base station of the Internet of things, the MM layer and the CM layer are deployed on a Core network (EPC) of the Internet of things, the terminal is firstly accessed into the RRC layer and then accessed into the MM layer and the CM layer, and after the terminal is normally accessed into the CM layer, the terminal is finally accessed into a service layer (deployed on the Core network) of the Internet of things and sends data to the service layer. Therefore, the terminal can confirm different priority levels for each of the plurality of target layers before accessing the internet of things.
When the terminal executes an Attach (English) process or a TAU (Chinese Tracking Area Update) process, the terminal and one side of the Internet of things negotiate the priority level of each target layer in a plurality of target layers according to the subscription information and the current network state of the terminal, and the priority levels of different target layers on the same terminal can be the same or different. The negotiated priority level of each target layer is stored in the internet of things and the terminal respectively, namely the priority level of each target layer of the terminal is known by both the internet of things and the terminal. The priority level is used for indicating the sequence of the terminal when accessing the target layer. The subscription information may include, for example, a category of the terminal or other attributes of the terminal, and the network status may include the number of terminals that the internet of things can currently access simultaneously, an upper traffic limit of data transmission, and the like. If the category of the terminal is important (it can be understood that the service of the terminal is important), the terminal can be set to a higher priority level of the target layer to meet the service requirement of the terminal. If the number of terminals which can be accessed simultaneously by the internet of things is large, the terminals can be set to be in a higher priority level of a target layer so as to meet the requirement that as many terminals as possible are accessed into the internet of things.
Specifically, the priority level of each target layer may be, for example, 0, 1, 2, and 3, where 0 represents the highest priority level, congestion control is not performed on the terminal, the terminal continuously initiates an access request to the target layer until the target layer is accessed, 1 represents a higher priority level, congestion control is performed on the terminal, the terminal initiates an access request to the target layer, if unsuccessful, the terminal waits for a short time before initiating an access request to the target layer, 2 represents a lower priority level, congestion control is performed on the terminal, the terminal initiates an access request to the target layer, if unsuccessful, the terminal waits for a long time before initiating an access request to the target layer, 3 represents a low priority level, congestion control is performed on the terminal, the terminal initiates an access request to the target layer, and if unsuccessful, the terminal waits for the longest time before initiating an access request to the target layer. The corresponding relationship between the priority and the waiting time (that is, the timing duration described later) is not fixed, and may be determined by the side of the internet of things according to the current network state and other specific conditions on the basis of a preset rule, for example, when the terminals simultaneously accessing the target layer, if the number of the terminals with the priority 2 is the same as that of the terminals with the priority 1, the timing duration of the terminal with the priority 1 indicated by the internet of things is shorter than that of the terminal with the priority 2. If more terminals with the priority level of 1 exist and fewer terminals with the priority level of 2 exist, the timing duration of the terminal with the priority level of 1 indicated by the internet of things can be longer than the timing duration of the terminal with the priority level of 2, so that a small number of terminals with the priority level of 2 can be accessed to the target layer as soon as possible.
Step 102, an access request is initiated to a target layer of the internet of things.
And 103, receiving rejection information, wherein the rejection information is an internet of things rejection terminal, or when the terminal is released, sending the information to the terminal according to the priority level of the target layer.
In an example, a terminal initiates an access request to a target layer of the internet of things, the internet of things judges whether the terminal can be accessed to the target layer according to a current network state, if the current network state is a congestion state, the terminal cannot be accessed to the target layer, and if the current network state is a smooth state, the terminal can be accessed to the target layer. When the internet of things determines that the terminal cannot access the target layer, the terminal is rejected or released, and if a certain terminal has previously accessed the target layer, the internet of things may release the terminal in order to ensure normal transmission of data. Meanwhile, the internet of things sends rejection information to the terminal, and the terminal receives the rejection information. The rejection information is information determined by the internet of things according to the priority level of the target layer, for example, the rejection information may include a rejection reason, and may further include a timing duration specified according to the priority level of the target layer.
And 104, starting a timer corresponding to the target layer according to the rejection information.
And 105, after the timer corresponding to the target layer is overtime, repeatedly executing the steps 102 to 104 until the target layer is accessed.
Specifically, the terminal starts a timer corresponding to the target layer according to the rejection information, the timer corresponding to the target layer starts timing, before the timer corresponding to the target layer is overtime, the terminal does not initiate an access request to the target layer of the internet of things any more, and after the timer corresponding to the target layer is overtime, the terminal initiates the access request to the target layer of the internet of things again. And if the internet of things rejects the terminal again or releases the terminal, the terminal restarts the timer corresponding to the target layer according to rejection information sent by the internet of things, and so on until the terminal is accessed to the target layer. The terminal is provided with a timer corresponding to each target layer, for example, trrcconfigsttimer corresponding to the RRC layer, tmmcongestatmer corresponding to the MM layer, and tcmcongestatmer corresponding to the CM layer. The timing duration of the timer corresponding to the target layer is determined according to the rejection information, for example, different rejection reasons corresponding to different timing durations may be preset, and the timing duration of the timer is determined according to the rejection reasons included in the rejection information. And the priority levels of different target layers can be preset to correspond to different timing durations, and the timing duration of the timer of the target layer can be determined according to the priority levels of the target layers. Further, if the reject information includes a timing duration specified according to the priority level of the target layer, the timing duration of the timer of the target layer may be determined as the specified timing duration.
Therefore, when the terminal accesses the RRC layer, the MM layer, and the CM layer, the terminal can access the RRC layer, the MM layer, and the CM layer according to their respective priority levels, and compared with a method of performing congestion control only on the NAS layer, the flexibility of congestion control is greatly improved. Correspondingly, as the congestion control is respectively carried out on the RRC layer, the MM layer and the CM layer, the number of the terminals which are accessed to the target layer is reduced, the probability of the terminals successfully accessing the target layer is correspondingly improved, and finally the probability of the terminals successfully accessing the Internet of things is also improved.
In summary, according to the present disclosure, when the terminal executes an attach process or a TAU process, the priority level of each of a plurality of target layers is determined according to subscription information of the terminal and a current network state, then the terminal initiates an access request to the target layer of the internet of things, if the internet of things rejects the terminal or releases the terminal, reject information is sent to the terminal according to the priority level of the target layer, the terminal starts a timer corresponding to the target layer according to the received reject information, and after the timer corresponding to the target layer is overtime, the terminal repeatedly initiates an access request to the target layer of the internet of things until the target layer is accessed. According to the method and the device, when the terminal accesses the Internet of things, congestion control is performed according to different layers, so that the flexibility of congestion control is improved, and the probability of successful access of the terminal to the Internet of things can be improved.
Fig. 2 is a flowchart illustrating another method for controlling congestion of the internet of things according to an exemplary embodiment, where as shown in fig. 2, the target layer is a radio resource control RRC layer, and the access request is a link establishment request, and before step 102, the method further includes:
and 106, receiving the corresponding relation between the priority level of the Internet of things broadcast through the system information and the timing duration.
And step 107, determining the default timing duration of the RRC layer according to the corresponding relation and the priority level of the RRC layer.
For example, when the target layer is the RRC layer, the terminal accesses the RRC layer by initiating a link establishment request. Before a terminal initiates a link establishment request to an RRC layer of the internet of things, the internet of things broadcasts a corresponding relationship between a priority and a timing duration through System Information, where the System Information may be, for example, SIB2 (english: System Information Block Type 2). After receiving the system information, the terminal determines the default timing duration (e.g., 15s) of the RRC layer according to the correspondence included in the system information and the priority of the RRC layer of the terminal.
Implementations of step 104 may include:
step 1041, if the rejection information includes a target timing duration, controlling a timer corresponding to the RRC layer to time according to the target timing duration, where the target timing duration is a duration determined by the internet of things according to the priority level of the RRC layer.
Step 1042, if the reject message does not include the target timing duration, controlling a timer corresponding to the RRC layer to time according to the default timing duration.
For example, after receiving the rejection information, the terminal may analyze the rejection information according to a preset protocol, and if the rejection information includes a target timing duration (for example, 20s), set the timing duration of the timer corresponding to the RRC layer as the target timing duration, and start the timer corresponding to the RRC layer, so that the timer corresponding to the RRC layer starts to time. If the reject message does not include the target timing duration, setting the timing duration of the timer corresponding to the RRC layer to the default timing duration determined in step 107, and starting the timer corresponding to the RRC layer to start timing by the timer corresponding to the RRC layer. The target timing duration is determined by the Internet of things according to the priority level of the RRC layer of the terminal and the current network state, and the timing duration suitable for the terminal is determined. Accordingly, before the timer corresponding to the RRC layer expires, the terminal does not initiate a link establishment request to the RRC layer.
Fig. 3 is a flowchart illustrating another method for controlling congestion of the internet of things according to an exemplary embodiment, and as shown in fig. 3, the implementation of step 104 may include:
and 1043, if the rejection information includes the target timing duration, controlling a timer corresponding to the target layer to time according to the target timing duration, wherein the target timing duration is a duration determined by the internet of things according to the priority level of the target layer.
Step 1044, if the rejection information does not include the target timing duration, determining a default timing duration corresponding to the target layer according to a preset rule.
And step 1045, controlling a timer corresponding to the target layer to time according to the default timing duration.
When the target layer is the MM layer, the terminal accesses the MM layer by initiating an attach request, a TAU request, or a service request (english: ServiceRequest, abbreviation: SR). When the target layer is the CM layer, the terminal accesses the CM layer by initiating a bearer activation request or a modification flow request. The bearer activation request can be understood as a related flow of an ESM (english: EPS Session management, chinese: EPS Session management) layer. Correspondingly, when the target layer is the MM layer, the terminal cannot initiate an attach request, a TAU request, or a service request to the MM layer until the timer corresponding to the MM layer times out, and when the target layer is the CM layer, the terminal cannot initiate a bearer activation request or a flow modification request to the CM layer.
When the terminal is an MM layer or a CM layer, the rejection information may be analyzed according to a preset protocol, and if the rejection information includes a target timing duration, the timing duration of a timer corresponding to the target layer is set as the target timing duration, and the timer is started to start timing. If the rejection information does not include the target timing duration, determining the default timing duration corresponding to the target layer according to a preset rule, setting the timing duration of the timer corresponding to the target layer as the default timing duration, and starting the timer to start timing. The preset rule may be a rule agreed in advance by the terminal and the internet of things side, for example, the preset rule may be a corresponding relationship between the priority level and the timing duration, or may be a default timing duration corresponding to the priority level of the target layer determined while the priority level of the target layer is determined in step 101.
Fig. 4 is a flowchart illustrating another method for controlling congestion in the internet of things according to an exemplary embodiment, where, as shown in fig. 4, a priority level of a service layer is included in a bearer activation request, and after accessing a CM layer, the method further includes:
and step 108, receiving service timing duration and service quantity corresponding to the service layer sent by the Internet of things, and determining the service timing duration and the service quantity for the Internet of things according to the priority level of the service layer.
And step 109, controlling a timer corresponding to the service layer to time according to the service timing duration, so as to send a service number of data packets to the service layer within the service timing duration.
For example, when the target layer is the CM layer, the terminal may include the priority level of the service layer in the initiated bearer activation request, so that the internet of things can acquire the priority level of the service layer of the terminal. And then the Internet of things determines the service timing duration and the service quantity corresponding to the service layer according to the priority level of the service layer in the bearing activation request. The Internet of things sends the service timing duration and the service quantity corresponding to the service layer to the terminal, and the terminal controls the timer corresponding to the service layer to time according to the service timing duration so as to send data packets with the service quantity to the service layer within the service timing duration.
The priority levels of the service layers are APN (Access Point Name, Chinese: Access Point) service and P L MN (Public land Mobile Network, Chinese: Public land Mobile Network) service, and can indicate the speed of sending data packets to the service layers by the terminal, wherein the priority levels can be divided into 0, 1, 2 and 3, for example, 0 represents the highest priority level, the congestion control is not performed on the terminal, the terminal can send the data packets to the service layers at any time, 1 represents a higher priority level, the congestion control is performed on the terminal, the terminal can send 10 data packets within 10 minutes, 2 represents a lower priority level, the congestion control is performed on the terminal, the terminal can send 6 data packets within 10 minutes, 3 represents a low priority level, the congestion control is performed on the terminal, and the terminal can send 3 data packets within 10 minutes.
For example, if the priority level of the service layer is 2, the internet of things determines that the service timing duration is 10 minutes, and the service number is 6, then the timing duration of a timer tdataconfigusttimer corresponding to the service layer is set to 10 minutes, the tdataconfigusttimer is started, and the data packets sent to the service layer are counted, if the terminal has sent 6 data packets to the service layer before the tdataconfigestatimer is not overtime, the terminal cannot send data packets any more, if the terminal has sent 6 data packets or less than 6 data packets to the service layer at the time when the tdataconfigtimestamp is overtime, the tdataconfigustr counts again (i.e., the next 10 minutes), and the terminal continues to send data packets to the service layer.
In summary, according to the present disclosure, when the terminal executes an attach process or a TAU process, the priority level of each of a plurality of target layers is determined according to subscription information of the terminal and a current network state, then the terminal initiates an access request to the target layer of the internet of things, if the internet of things rejects the terminal or releases the terminal, reject information is sent to the terminal according to the priority level of the target layer, the terminal starts a timer corresponding to the target layer according to the received reject information, and after the timer corresponding to the target layer is overtime, the terminal repeatedly initiates an access request to the target layer of the internet of things until the target layer is accessed. According to the method and the device, when the terminal accesses the Internet of things, congestion control is performed according to different layers, so that the flexibility of congestion control is improved, and the probability of successful access of the terminal to the Internet of things can be improved.
Fig. 5 is a flowchart illustrating a method for congestion control of the internet of things according to an exemplary embodiment, where the method is applied to the internet of things, as shown in fig. 5, and includes the following steps:
step 201, when the terminal executes the assignment process, determining the priority level of each target layer in a plurality of target layers of the terminal according to the subscription information and the current network state of the terminal, wherein the assignment process comprises: an attach procedure or a tracking area update TAU procedure.
Step 202, receiving an access request initiated by the terminal to the target layer.
And 203, if the current network state meets the preset condition, rejecting the terminal or releasing the terminal, and sending rejection information to the terminal according to the priority level of the target layer, so that the terminal starts a timer corresponding to the target layer according to the rejection information, and repeatedly executing the access request initiated to the target layer after the timer corresponding to the target layer is overtime.
For example, the internet of things is divided into an RRC layer, an MM layer, and a CM layer, and before the terminal accesses the internet of things, an attach procedure or a TAU procedure is performed, where a priority level of each of a plurality of target layers may be negotiated with one side of the internet of things according to subscription information of the terminal and a current network state. And then, the terminal initiates an access request to a target layer of the Internet of things, the Internet of things judges whether the terminal can be accessed to the target layer according to the current network state, if the current network state is a congestion state, the terminal cannot be accessed to the target layer, and if the current network state is a smooth state, the terminal can be accessed to the target layer. When the internet of things determines that the terminal cannot access the target layer, the terminal is rejected or released, and if a certain terminal has previously accessed the target layer, the internet of things may release the terminal in order to ensure normal transmission of data. Meanwhile, the internet of things sends rejection information to the terminal, and the terminal receives the rejection information. The reject information is determined according to the priority level of the target layer, for example, the reject information may include a reject reason, and may further include a timing duration specified according to the priority level of the target layer. And after receiving the rejection information, the terminal starts a timer corresponding to the target layer according to the rejection information, and repeatedly executes to initiate an access request to the target layer after the timer corresponding to the target layer is overtime.
Fig. 6 is a flowchart illustrating another method for controlling congestion of the internet of things according to an exemplary embodiment, where as shown in fig. 6, the target layer is any one of a radio resource control RRC layer, a mobility management MM layer, and a connection management CM layer, and if the target layer is the RRC layer, the access request is a link establishment request, if the target layer is the MM layer, the access request is any one of an attach request, a TAU request, and a service request, and if the target layer is the CM layer, the access request is a bearer activation request or a modification flow request. Step 203 may be implemented by:
step 2031, determining a target timing duration according to the priority of the target layer.
Step 2031, sending the reject message including the target timing duration to the terminal.
For example, when the internet of things determines that the terminal cannot access the target layer, the target timing duration is specified according to the priority level of the target layer, and the target timing duration is used for indicating the waiting duration of the terminal, that is, the terminal can continue to initiate the access request after the target timing duration. And then, transmitting rejection information including the target timing duration to the terminal.
Fig. 7 is a flowchart illustrating another method for controlling congestion in the internet of things according to an exemplary embodiment, where as shown in fig. 7, if the target layer is an RRC layer, before step 202, the method further includes:
and step 204, determining the default timing duration of the RRC layer by the terminal according to the corresponding relation and the priority of the RRC layer through the corresponding relation between the priority of the system information broadcast and the timing duration.
For example, when the target layer is the RRC layer, the internet of things broadcasts the corresponding relationship between the priority and the timing duration through the system information. And after receiving the system information, the terminal determines the default timing duration of the RRC layer according to the corresponding relation contained in the system information and the priority level of the RRC layer of the terminal.
Fig. 8 is a flowchart illustrating another method for controlling congestion in the internet of things according to an exemplary embodiment, where, as shown in fig. 8, the bearer activation request includes a priority level of a service layer, and after the terminal accesses the CM layer, the method further includes:
step 205, determining the service timing duration and the service quantity corresponding to the service layer according to the priority level of the service layer.
And step 206, sending the service timing duration and the service quantity to the terminal, so that the terminal controls a timer corresponding to the service layer to time according to the service timing duration, and sending data packets of the service quantity to the service layer within the service timing duration.
For example, when the target layer is the CM layer, the terminal may include the priority level of the service layer in the initiated bearer activation request, and the internet of things can learn the priority level of the service layer of the terminal by receiving the bearer activation request. And then the Internet of things determines the service timing duration and the service quantity corresponding to the service layer according to the priority level of the service layer. The Internet of things sends the service timing duration and the service quantity corresponding to the service layer to the terminal, so that the terminal controls a timer corresponding to the service layer to time according to the service timing duration, and data packets with the service quantity are sent to the service layer within the service timing duration.
In summary, according to the present disclosure, when the terminal executes an attach process or a TAU process, the priority level of each of a plurality of target layers is determined according to subscription information of the terminal and a current network state, then the terminal initiates an access request to the target layer of the internet of things, if the internet of things rejects the terminal or releases the terminal, reject information is sent to the terminal according to the priority level of the target layer, the terminal starts a timer corresponding to the target layer according to the received reject information, and after the timer corresponding to the target layer is overtime, the terminal repeatedly initiates an access request to the target layer of the internet of things until the target layer is accessed. According to the method and the device, when the terminal accesses the Internet of things, congestion control is performed according to different layers, so that the flexibility of congestion control is improved, and the probability of successful access of the terminal to the Internet of things can be improved.
Fig. 9 is a block diagram illustrating an apparatus for congestion control of the internet of things according to an exemplary embodiment, and as shown in fig. 9, the apparatus 300 is applied to a terminal and includes:
a first determining module 301, configured to determine, when performing an assignment process, a priority level of each of a plurality of target layers according to subscription information of a terminal and a current network state, where the assignment process includes: an attach procedure or a tracking area update TAU procedure.
A request module 302, configured to initiate an access request to a target layer of the internet of things.
The first receiving module 303 is configured to receive rejection information, where the rejection information is an internet of things rejection terminal, or information sent to the terminal according to the priority level of the target layer when the terminal is released.
And the starting module 304 is configured to start a timer corresponding to the target layer according to the rejection information.
And after the timer corresponding to the target layer is overtime, repeatedly executing the steps of initiating an access request to the target layer of the Internet of things and starting the timer corresponding to the target layer according to the refusal information until the target layer is accessed.
Fig. 10 is a block diagram illustrating another apparatus for controlling congestion of the internet of things according to an exemplary embodiment, where as shown in fig. 10, the target layer is a radio resource control RRC layer, and the access request is a link establishment request, the apparatus further includes:
the broadcast module 305 is configured to receive a correspondence between a priority level broadcasted by the system information of the internet of things and a timing duration before initiating an access request to a target layer of the internet of things.
A second determining module 306, configured to determine a default timing duration of the RRC layer according to the corresponding relationship and the priority level of the RRC layer.
The initiating module 304 is configured to perform the following steps:
1) and if the rejection information comprises the target timing duration, controlling a timer corresponding to the RRC layer to time according to the target timing duration, wherein the target timing duration is the duration determined by the Internet of things according to the priority level of the RRC layer.
2) And if the rejection information does not comprise the target timing duration, controlling a timer corresponding to the RRC layer to time according to the default timing duration.
Further, the target layer is a MM layer or a CM layer, if the target layer is the MM layer, the access request is any one of an attach request, a TAU request, and a service request, and if the target layer is the CM layer, the access request is a bearer activation request or a flow modification request.
The initiation module 304 may be configured to perform the following steps:
3) and if the rejection information comprises the target timing duration, controlling a timer corresponding to the target layer to time according to the target timing duration, wherein the target timing duration is the duration determined by the Internet of things according to the priority level of the target layer.
4) And if the rejection information does not comprise the target timing duration, determining the default timing duration corresponding to the target layer according to a preset rule.
5) And controlling a timer corresponding to the target layer to time according to the default timing duration.
Fig. 11 is a block diagram illustrating another apparatus for congestion control of the internet of things according to an exemplary embodiment, where, as shown in fig. 11, a bearer activation request includes a priority level of a service layer, and the apparatus 300 further includes:
the second receiving module 307 is configured to receive, after accessing the CM layer, the service timing duration and the service number corresponding to the service layer sent by the internet of things, and the service timing duration and the service number are determined by the internet of things according to the priority level of the service layer.
The control module 308 is configured to control a timer corresponding to the service layer to time according to the service timing duration, so as to send a number of data packets of the service quantity to the service layer within the service timing duration.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
In summary, according to the present disclosure, when the terminal executes an attach process or a TAU process, the priority level of each of a plurality of target layers is determined according to subscription information of the terminal and a current network state, then the terminal initiates an access request to the target layer of the internet of things, if the internet of things rejects the terminal or releases the terminal, reject information is sent to the terminal according to the priority level of the target layer, the terminal starts a timer corresponding to the target layer according to the received reject information, and after the timer corresponding to the target layer is overtime, the terminal repeatedly initiates an access request to the target layer of the internet of things until the target layer is accessed. According to the method and the device, when the terminal accesses the Internet of things, congestion control is performed according to different layers, so that the flexibility of congestion control is improved, and the probability of successful access of the terminal to the Internet of things can be improved.
Fig. 12 is a block diagram illustrating an apparatus for congestion control of the internet of things according to an exemplary embodiment, and as shown in fig. 12, the apparatus 400 is applied to the internet of things and includes the following modules:
a first determining module 401, configured to determine, when the terminal executes an assignment process, a priority level of each of a plurality of target layers of the terminal according to subscription information of the terminal and a current network state, where the assignment process includes: an attach procedure or a tracking area update TAU procedure.
A receiving module 402, configured to receive an access request initiated by a terminal to a target layer.
The control module 403 is configured to reject the terminal or release the terminal if the current network state meets the preset condition, and send rejection information to the terminal according to the priority level of the target layer, so that the terminal starts a timer corresponding to the target layer according to the rejection information, and repeatedly execute an access request initiated to the target layer after the timer corresponding to the target layer is overtime.
Optionally, the target layer is any one of a radio resource control RRC layer, a mobility management MM layer, and a connection management CM layer, if the target layer is the RRC layer, the access request is a link establishment request, if the target layer is the MM layer, the access request is any one of an attach request, a TAU request, and a service request, and if the target layer is the CM layer, the access request is a bearer activation request or a procedure modification request.
The control module 403 is configured to perform the following steps:
1) and determining the target timing duration according to the priority level of the target layer.
2) And transmitting rejection information including the target timing duration to the terminal.
Fig. 13 is a block diagram illustrating another apparatus for congestion control of the internet of things according to an exemplary embodiment, where, as shown in fig. 13, the apparatus 400 further includes:
the broadcast module 404 is configured to, if the target layer is an RRC layer, determine a default timing duration of the RRC layer according to the correspondence and the priority of the RRC layer by using the correspondence between the priority of the system information broadcast and the timing duration before receiving an access request initiated by the terminal to the target layer.
Fig. 14 is a block diagram illustrating another apparatus for congestion control of the internet of things according to an exemplary embodiment, where, as shown in fig. 14, a priority level of a service layer is included in a bearer activation request, the apparatus 400 further includes:
a second determining module 405, configured to determine, after the terminal accesses the CM layer, a service timing duration and a service number corresponding to the service layer according to the priority level of the service layer.
The sending module 406 is configured to send the service timing duration and the service quantity to the terminal, so that the terminal controls a timer corresponding to the service layer to time according to the service timing duration, and sends a data packet of the service quantity to the service layer within the service timing duration.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
In summary, according to the present disclosure, when the terminal executes an attach process or a TAU process, the priority level of each of a plurality of target layers is determined according to subscription information of the terminal and a current network state, then the terminal initiates an access request to the target layer of the internet of things, if the internet of things rejects the terminal or releases the terminal, reject information is sent to the terminal according to the priority level of the target layer, the terminal starts a timer corresponding to the target layer according to the received reject information, and after the timer corresponding to the target layer is overtime, the terminal repeatedly initiates an access request to the target layer of the internet of things until the target layer is accessed. According to the method and the device, when the terminal accesses the Internet of things, congestion control is performed according to different layers, so that the flexibility of congestion control is improved, and the probability of successful access of the terminal to the Internet of things can be improved.
Fig. 15 is a block diagram illustrating an electronic device 700 according to an example embodiment. As shown in fig. 15, the electronic device 700 may include: a processor 701 and a memory 702. The electronic device 700 may also include one or more of a multimedia component 703, an input/output (I/O) interface 704, and a communication component 705.
The processor 701 is configured to control the overall operation of the electronic device 700, so as to complete all or part of the steps in the method for congestion control of the internet of things applied to the terminal. The memory 702 is used to store various types of data to support operation at the electronic device 700, such as instructions for any application or method operating on the electronic device 700 and application-related data, such as contact data, transmitted and received messages, pictures, audio, video, and the like. The Memory 702 may be implemented by any type of volatile or non-volatile Memory device or combination thereof, such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic Memory, flash Memory, magnetic disk, or optical disk. The multimedia components 703 may include screen and audio components. Wherein the screen may be, for example, a touch screen and the audio component is used for outputting and/or inputting audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signal may further be stored in the memory 702 or transmitted through the communication component 705. The audio assembly also includes at least one speaker for outputting audio signals. The I/O interface 704 provides an interface between the processor 701 and other interface modules, such as a keyboard, mouse, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 705 is used for wired or wireless communication between the electronic device 700 and other devices. Wireless Communication, such as Wi-Fi, bluetooth, Near Field Communication (NFC), 2G, 3G, 4G, NB-IOT, eMTC, or other 5G, etc., or a combination of one or more of them, which is not limited herein. The corresponding communication component 705 may thus include: Wi-Fi module, Bluetooth module, NFC module, etc.
In an exemplary embodiment, the electronic Device 700 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable logic devices (Programmable L analog devices, P L D), Field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors or other electronic components for performing the above-described method for congestion control applied to a terminal.
In another exemplary embodiment, a computer readable storage medium including program instructions is also provided, which when executed by a processor, implement the above-mentioned steps of the method applied to congestion control of the internet of things of a terminal. For example, the computer readable storage medium may be the memory 702 described above comprising program instructions executable by the processor 701 of the electronic device 700 to perform the method described above for internet of things congestion control applied to a terminal.
In another exemplary embodiment, a computer program product is also provided, which includes a computer program executable by a programmable apparatus, the computer program having code portions for performing the above-mentioned method for congestion control of an internet of things applied to a terminal when the computer program is executed by the programmable apparatus
Fig. 16 is a block diagram illustrating an electronic device 1900 according to an example embodiment. For example, the electronic device 1900 may be provided as a server. Referring to fig. 16, an electronic device 1900 includes a processor 1922, which may be one or more in number, and a memory 1932 for storing computer programs executable by the processor 1922. The computer program stored in memory 1932 may include one or more modules that each correspond to a set of instructions. Further, the processor 1922 may be configured to execute the computer program to perform the method of internet of things congestion control applied to the internet of things described above.
Additionally, the electronic device 1900 may further include a power component 1926 and a communication component 1950, the power component 1926 may be configured to perform power management of the electronic device 1900, and the communication component 1950 may be configured to enable communication, e.g., wired or wireless communication, of the electronic device 1900. in addition, the electronic device 1900 may further include an input/output (I/O) interface 1958 the electronic device 1900 may operate based on an operating system stored in a memory 1932, e.g., WindowsServerTM, Mac OS XTM, UnixTM, &lTtTtTranslation = L &"," [ L &l Tt/T &gTt inxTM, and so on.
In another exemplary embodiment, a computer readable storage medium including program instructions is also provided, which when executed by a processor implement the above to perform the steps of the above method for congestion control of the internet of things applied to the internet of things. For example, the computer readable storage medium may be the memory 1932 comprising program instructions executable by the processor 1922 of the electronic device 1900 to perform the method for internet of things congestion control applied to the internet of things described above.
In another exemplary embodiment, a computer program product is also provided, which includes a computer program executable by a programmable apparatus, the computer program having code portions for performing the above-mentioned method for congestion control of an internet of things applied to the internet of things when the computer program is executed by the programmable apparatus.
In summary, according to the present disclosure, when the terminal executes an attach process or a TAU process, the priority level of each of a plurality of target layers is determined according to subscription information of the terminal and a current network state, then the terminal initiates an access request to the target layer of the internet of things, if the internet of things rejects the terminal or releases the terminal, reject information is sent to the terminal according to the priority level of the target layer, the terminal starts a timer corresponding to the target layer according to the received reject information, and after the timer corresponding to the target layer is overtime, the terminal repeatedly initiates an access request to the target layer of the internet of things until the target layer is accessed. According to the method and the device, when the terminal accesses the Internet of things, congestion control is performed according to different layers, so that the flexibility of congestion control is improved, and the probability of successful access of the terminal to the Internet of things can be improved.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims (14)

1. A method for congestion control of the Internet of things is applied to a terminal, and comprises the following steps:
when executing a designation process, determining the priority level of each target layer in a plurality of target layers according to the subscription information of the terminal and the current network state, wherein the designation process comprises the following steps: an attach procedure or a tracking area update TAU procedure;
initiating an access request to the target layer of the Internet of things;
receiving rejection information, wherein the rejection information is information sent to the terminal according to the priority level of the target layer when the terminal is rejected by the internet of things or released;
starting a timer corresponding to the target layer according to the rejection information, wherein the timing duration of the timer corresponding to the target layer is determined according to a rejection reason included in the rejection information, or a specified timing duration included in the rejection information, or the priority level of the target layer;
and after the timer corresponding to the target layer is overtime, the step of initiating an access request to the target layer of the Internet of things to start the timer corresponding to the target layer according to the rejection information is repeatedly executed until the target layer is accessed.
2. The method of claim 1, wherein the target layer is a Radio Resource Control (RRC) layer, wherein the access request is a link establishment request, and wherein before the initiating the access request to the target layer of the Internet of things, the method further comprises:
receiving the corresponding relation between the priority level of the Internet of things through system information broadcasting and the timing duration;
determining the default timing duration of the RRC layer according to the corresponding relation and the priority level of the RRC layer;
the starting the timer corresponding to the target layer according to the rejection information includes:
if the rejection information comprises a target timing duration, controlling a timer corresponding to the RRC layer to time according to the target timing duration, wherein the target timing duration is a duration determined by the Internet of things according to the priority level of the RRC layer;
and if the rejection information does not comprise the target timing duration, controlling a timer corresponding to the RRC layer to time according to the default timing duration.
3. The method of claim 1, wherein the target layer is a mobility management MM layer or a connection management CM layer, and if the target layer is the MM layer, the access request is any one of an attach request, a TAU request, and a service request, and if the target layer is the CM layer, the access request is a bearer activation request or a modified procedure request;
the starting the timer corresponding to the target layer according to the rejection information includes:
if the rejection information comprises a target timing duration, controlling a timer corresponding to the target layer to time according to the target timing duration, wherein the target timing duration is a duration determined by the Internet of things according to the priority level of the target layer;
if the rejection information does not comprise the target timing duration, determining a default timing duration corresponding to the target layer according to a preset rule;
and controlling a timer corresponding to the target layer to time according to the default timing duration.
4. The method of claim 3, wherein the bearer activation request includes a priority level of a traffic layer, and wherein after accessing the CM layer, the method further comprises:
receiving service timing duration and service quantity which are sent by the Internet of things and correspond to the service layer, wherein the service timing duration and the service quantity are determined by the Internet of things according to the priority level of the service layer;
and controlling a timer corresponding to the service layer to time according to the service timing duration so as to send the data packets of the service quantity to the service layer within the service timing duration.
5. A method for congestion control of the Internet of things is applied to the Internet of things, and comprises the following steps:
when a terminal executes a designation process, determining the priority level of each target layer in a plurality of target layers of the terminal according to subscription information of the terminal and the current network state, wherein the designation process comprises the following steps: an attach procedure or a tracking area update TAU procedure;
receiving an access request initiated by the terminal to the target layer;
and if the current network state meets a preset condition, rejecting the terminal, or releasing the terminal, and sending rejection information to the terminal according to the priority level of the target layer, so that the terminal starts a timer corresponding to the target layer according to the rejection information, and repeatedly executes an access request initiated to the target layer after the timer corresponding to the target layer is overtime, wherein the timing duration of the timer corresponding to the target layer is determined by the terminal according to a rejection reason included in the rejection information, or a specified timing duration included in the rejection information, or the priority level of the target layer.
6. The method of claim 5, wherein the target layer is any one of a Radio Resource Control (RRC) layer, a Mobility Management (MM) layer and a Connection Management (CM) layer, wherein the access request is a link establishment request if the target layer is the RRC layer, wherein the access request is any one of an attach request, a TAU request and a service request if the target layer is the MM layer, and wherein the access request is a bearer activation request or a modified procedure request if the target layer is the CM layer;
the sending rejection information to the terminal according to the priority level of the target layer includes:
determining a target timing duration according to the priority level of the target layer;
and sending the rejection information comprising the target timing duration to the terminal.
7. The method according to claim 6, wherein if the target layer is an RRC layer, before the receiving the access request initiated by the terminal to the target layer, the method further comprises:
and determining the default timing duration of the RRC layer by the terminal according to the corresponding relation and the priority of the RRC layer through the corresponding relation between the priority of system information broadcast and the timing duration.
8. The method of claim 6, wherein the bearer activation request includes a priority level of a traffic layer, and wherein after the terminal accesses the CM layer, the method further comprises:
determining the service timing duration and the service quantity corresponding to the service layer according to the priority level of the service layer;
and sending the service timing duration and the service quantity to the terminal so that the terminal controls a timer corresponding to the service layer to time according to the service timing duration, and sending data packets of the service quantity to the service layer within the service timing duration.
9. The device for congestion control of the Internet of things is applied to a terminal and comprises the following components:
a first determining module, configured to determine, when performing a specifying process, a priority level of each of a plurality of target layers according to subscription information of the terminal and a current network state, where the specifying process includes: an attach procedure or a tracking area update TAU procedure;
the request module is used for initiating an access request to the target layer of the Internet of things;
the first receiving module is used for receiving rejection information, wherein the rejection information is information sent to the terminal according to the priority level of the target layer when the terminal is rejected by the internet of things or released;
a starting module, configured to start a timer corresponding to the target layer according to the rejection information, where a timing duration of the timer corresponding to the target layer is determined according to a rejection reason included in the rejection information, or a specified timing duration included in the rejection information, or a priority level of the target layer;
and after the timer corresponding to the target layer is overtime, the step of initiating an access request to the target layer of the Internet of things to start the timer corresponding to the target layer according to the rejection information is repeatedly executed until the target layer is accessed.
10. The device for congestion control of the Internet of things is applied to the Internet of things and comprises:
a first determining module, configured to determine, when a terminal executes a specifying process, a priority level of each of a plurality of target layers of the terminal according to subscription information of the terminal and a current network state, where the specifying process includes: an attach procedure or a tracking area update TAU procedure;
a receiving module, configured to receive an access request initiated by the terminal to the target layer;
and the control module is used for rejecting the terminal or releasing the terminal if the current network state meets a preset condition, and sending rejection information to the terminal according to the priority level of the target layer, so that the terminal starts a timer corresponding to the target layer according to the rejection information, and repeatedly executes an access request initiated to the target layer after the timer corresponding to the target layer is overtime, wherein the timing duration of the timer corresponding to the target layer is determined by the terminal according to a rejection reason included in the rejection information, or a specified timing duration included in the rejection information, or the priority level of the target layer.
11. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 4.
12. An electronic device, comprising:
a memory having a computer program stored thereon;
a processor for executing the computer program in the memory to carry out the steps of the method of any one of claims 1 to 4.
13. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 5 to 8.
14. An electronic device, comprising:
a memory having a computer program stored thereon;
a processor for executing the computer program in the memory to carry out the steps of the method of any one of claims 5 to 8.
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