WO2011054149A1

WO2011054149A1 - Method, device and communication system for load control

Info

Publication number: WO2011054149A1
Application number: PCT/CN2009/074834
Authority: WO
Inventors: 陆峰; 吴问付; 周汉
Original assignee: 华为技术有限公司
Priority date: 2009-11-06
Filing date: 2009-11-06
Publication date: 2011-05-12
Also published as: CN102948203B; CN102948203A

Abstract

A method, device and communication system for load control are provided, wherein the method for load control comprises: obtaining load condition of a first Network Element (NE) on the network side; if the load ratio of the first NE on the network side exceeds a predetermined threshold or the first NE on the network side is overloaded, restricting the access or service conduct of a Machine to Machine (M2M) user device under the first NE on the network side according to the load control policy of the first NE on the network side about M2M user devices. With the technical solution in the embodiment of the present invention, effect of M2M application to Human to Human (H2H) application can be relatively avoided or reduced, and normal access and service conduct of H2H application can be advantageously guaranteed.

Description

Load control method and device and communication system

Technical field

The present invention relates to the field of communications technologies, and in particular, to a load control method, a load control device, and a communication system.

Background technique

Currently, the 3rd Generation Partnership Project (3GPP, 3rd Generation Partnership Project) has developed the Long Term Evolution (LTE) program.

The wireless evolved network architecture of the 3GPP non-roaming scenario can be as shown in FIG. 1 , where the mobility management entity (MME, Mobility Management Entity), the monthly service gateway (SGW, Serving Gateway), and the packet data gateway (PGW, Packet Data Network) Three functional entities, such as Gateway, are the core network devices of the wireless evolution network. The MME is mainly responsible for non-access stratum (NAS, Non Access stratum) signaling management, bearer management, tracking and paging management in user idle mode; SGW is mainly responsible for local mobility anchor and mobility within 3GPP system. Anchor, and lawful interception related information; PGW is mainly responsible for policy enforcement and billing, as well as lawful interception and other functions.

In the existing communication methods, there are mainly two communication models such as human to human (H2H, Human to Human) and machine to machine (M2M). Among them, the H2H application mainly refers to the communication of the human communication main body, such as telephone communication; and the M2M application is also called the Machine Type Communication (MTC) application, which means that the multiple network elements are unattended. Network communication, such as traffic control and management, plant equipment operation monitoring, remote meter reading, etc.

In the prior art, a hybrid access mode is planned for the M2M application and the H2H application, and the same mechanism is used for the M2M user equipment (UE, User Equipment, also referred to as a machine type communication device (MTC Device)) and the H2H user equipment. Access control is performed, so that a large number of M2M applications may be accessed in a large amount, for example, in some access network elements or mobility management network elements, resulting in excessive load on the access network element or mobility management network element. The M2M application is occupied, which may affect the normal operation of the H2H application.

Summary of the invention

The embodiments of the present invention provide a load control method and device, and a communication system, which can relatively avoid or reduce the impact of an M2M application on an H2H application, and is beneficial to ensure normal access and operation of the H2H application. Business.

To solve the above technical problem, the technical solution provided in the embodiment of the present invention is as follows:

A load control method includes:

Obtaining the load status of the network element on the first network side;

If the load ratio of the first network side network element exceeds the set threshold or the network element of the first network side is overloaded, the M2M user equipment is restricted on the first network side according to the load control policy of the first network side network element regarding the M2M user equipment. Access or perform services under the NE.

A load control device includes:

a load learning module, configured to learn the load status of the network element on the first network side;

a limiting module, configured to: according to the load of the first network side network element about the M2M user equipment, when the load learning module learns that the load ratio of the first network side network element exceeds a set threshold or the first network side network element is overloaded The control policy is to restrict the M2M user equipment from accessing or performing services under the network element of the first network side.

A communication system comprising:

The load control device as in the above embodiment.

It can be seen from the above that the technical solution of the embodiment of the present invention has the following beneficial effects:

In the embodiment of the present invention, by restricting the M2M user equipment from accessing or performing services on the heavily loaded network side device, the load control may be performed for different M2M applications, and the impact of the M2M application on the H2H application may be relatively avoided or reduced on the one hand, which is beneficial to the M2M user equipment. The normal access or service of the H2H application is ensured. On the other hand, it is also beneficial to ensure normal access or service of a special M2M application.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings may be obtained based on these drawings without paying for inventive labor.

1 is a schematic diagram of a wireless evolution network architecture of a 3GPP non-roaming scenario;

2 is a flow chart of a load control method according to Embodiment 1 of the present invention;

3 is a flow chart of a load control method according to Embodiment 2 of the present invention;

4 is a flow chart of a load control method according to Embodiment 3 of the present invention; 5 is a flow chart of a load control method according to Embodiment 4 of the present invention;

6 is a flow chart of a load control method according to Embodiment 5 of the present invention;

7 is a flow chart of a load control method according to Embodiment 6 of the present invention;

8 is a schematic structural diagram of a load control device according to Embodiment 7 of the present invention;

9 is a schematic structural diagram of an access network element according to Embodiment 8 of the present invention;

FIG. 10 is a schematic structural diagram of a mobility management network element according to Embodiment 9 of the present invention.

detailed description

The embodiments of the present invention provide a load control method, a device, and a communication system, which can relatively avoid or reduce the impact of an M2M application on an H2H application, and ensure the normal access and service of the H2H application.

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. The embodiments are merely a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

It is to be noted that the access network element in the embodiment of the present invention may have different names and locations in different networks. The access network element in the embodiment of the present invention may be, for example, an evolved universal mobile communication system. (UMTS, Universal Mobile Telecommunications System) Evolved Base Station (eNodeB) or Home Base Station (HeNB) in E-UTRAN (Evolved UMTS Territorial Radio Access Network), UMTS Terrestrial Radio Access Network (UTR AN, UMTS) Territorial Radio Access Network) I GSM EDGE Radio Access Network (RGRAN, Radio Network Controller) or Base Station Controller (BSC); but in non-3GPP In the network, the access network element may be an entity with a logical function of an ePDG (Evolved Packet Data Gateway) access network in a wireless local area network (WLAN), and a global access of the wave access (WiMAX) , Worldwide Interoperability for Microwave Access) Access Service Network Base Station in the Network ASN BS, Access Service Network Base Station), or Wideband Code Division Multiple Access (CDMA, Code Division Multiple Access) An entity in the network that has a high-rate Packet Data Access Network (HRPD) access network logic function; or an entity that implements access network logic functions in other networks.

The mobility management network element in the embodiment of the present invention may have different names and locations in different networks. The mobility management network element in the embodiment of the present invention may be, for example, an MME connected to the E-UTRAN, and the UTRAN. / GERAN-connected Serving GPRS Support Node (SGSN); Access Gateway (AGW) in non-3GPP networks, such as entities with ePDG mobility management logic in WLAN, and WiMAX networks An access network gateway (ASN GW, Access Service Network Gateway), an entity with HRPD AN mobility management logic function in a CDMA network, or an entity that implements mobility management logic functions in other networks.

In the embodiment of the present invention, a plurality of M2M user equipments (ie, MTC user equipments) may be formed into one whole or an M2M user equipment under an M2M user may be formed into a whole, and may be referred to as an M2M user equipment group (M2M Group) or an M2M user equipment. A group, wherein an M2M user equipment group can be identified by a group ID. The group ID can be in various forms. For example, if the user equipment under the M2M Group shares an international mobile subscriber identity (IMSI, International Mobile Subscriber Identity) or Mobile Station International ISDN Number (MSISDN, Mobile Station International ISDN Number), the Group ID can be IMSI or MSISDN; or, if the user equipment under the M2M Group uses the same access point name (APN, The Access Point Name can be the name of the access point. Alternatively, the M2M Group can be assigned a special Group ID to identify the group.

Further, network operators or users in the industry can manage and control the M2M group as a whole. For example, remote meter reading applications in the power industry can group all the meters in a region into a group, and network operators or power industry users can use the group as a whole for mobility management optimization or access management; M2M applications are diversified, and different M2M applications have no M2M user equipment as a whole for management and control.

A detailed description will be given below. Embodiment 1

Referring to FIG. 2, a load control method according to Embodiment 1 of the present invention may include:

210. Obtain a load status of the network element on the first network side.

The first network side network element may be a mobility management network element or an access network network element, and may be other types of network entities on the network side.

In an application scenario, if the device that implements the technical solution in this embodiment is located in the first network side network element, the load status of the first network side network element can be directly learned through monitoring; if the technology in this embodiment is implemented If the device of the solution is not located in the network element of the first network side, the device may receive the message including the indication information of the load status of the network element of the first network side, so as to obtain the load status of the network element of the first network side.

It can be understood that the load status of the first network side network element can be obtained, for example, by knowing the load ratio of the first network side network element to learn the load status of the first network side network element, or by knowing the first network side network. The indication of the meta-overload is used to learn the load status of the network element on the first network side.

For example, if the load ratio of the network element on the first network side is known, the load level of the network element on the first network side can be obtained by comparing with the set threshold (the load level can include: light load, medium load, heavy load) If the load level of the network element on the first network side is obtained (for example, an overload indication message), the load status of the network element on the first network side can be directly determined. For overload.

If the load ratio of the first network side network element exceeds the set threshold or the network element of the first network side is overloaded, the M2M user equipment is restricted according to the load control policy of the M2M user equipment of the first network side network element. The access or service of the network element on the network side is performed.

It can be understood that the load threshold for starting load control on the first network side network element can be specifically set according to specific conditions, for example, can be set to 50%, 80%, 90% or other ratios.

The load control policy of the first network side network element about the M2M user equipment can be flexibly set and adjusted according to a specific application scenario. For example, the load control policy of the M2M user equipment of the first network side network element may include: flexibly constructing based on an application feature (MTC Feature) or a group ID (Group ID) of the M2M user equipment, and different MTC Feature in different scenarios. Or the load control policy of the Group ID M2M user equipment.

For example, the load control according to the load control policy may specifically include: according to the M2M The MTC Feature or the Group ID of the user equipment, in the different load conditions or the overload state of the network element of the first network side, restricts the M2M user equipment from accessing or performing services under the network element of the first network side, thereby implementing the first network side. Load control of network elements.

In the embodiment of the present invention, when the load ratio of the first network side network element exceeds the set threshold or the network element of the first network side is overloaded, the M2M user equipment and the H2H user equipment are started under the first network side network element. Different access control policies are adopted for the access or service, that is, different load control policies are adopted for the M2M user equipment and the H2H user equipment. For example, all or part of the M2M applications have lower priority than the H2H application, thereby restricting some or all of the M2M user equipments in the first network. The access or service is performed on the side network element to ensure that the H2H user equipment accesses or performs service under the network element on the first network side.

The M2M user equipment and the H2H user equipment are separately controlled in access or service under the first network side network element, and the M2M user equipment (which may be multiple M2M user equipments of the same or different types) is restricted in the first network. The accessing of the side network element may include: denying access of all M2M user equipments to the first network side network element, or accepting only the M2M of the first network side network element for permission access in the load control policy of the M2M user equipment. The access of the user equipment in the first network side network element or the access proportion of the M2M user equipment in the first network side network element (the access ratio may be any ratio between 0% and 100%) Or limiting the access rate of the M2M user equipment at the first network side network element (the access rate may be, for example, 0 times/second, 100 times/second, 500 times/second or other rate), or included in the broadcast message. The indication information of the MTC Feature or Group ID of the M2M user equipment that is currently allowed or prohibited to be instructed to indicate that some or all of the M2M user equipments currently allow or prohibit access to the first network. The network element may be configured to limit the proportion of the M2M user equipment to transmit data packets in the first network side network element, for example, the ratio may be between 0% and 100%. The maximum number of data packets transmitted by the M2M user equipment in a unit time under the first network side network element (the maximum number can be, for example, 0 packets/second, 100 packets/second, 500 packets/second). Or the other maximum number), or limit the proportion of the connection (eg, Sl/Iu connection) of the M2M user equipment under the first network side network element, or according to the set ratio (the ratio may be between 0% and 100%) The method of limiting the M2M user equipment to the M2M user equipment is not limited to the above-mentioned manner of limiting the M2M user equipment to access or perform services under the first network side network element.

It should be noted that the technical solution of this embodiment may specifically be in a mobility management network element or an access network. Implemented on a network element, or other device.

It can be seen that, in the embodiment of the present invention, the access or service of the M2M user equipment and the H2H user equipment in the heavily loaded network side device is controlled differently, and the M2M user equipment is restricted to access or perform on the heavily loaded network side device. The service can be used for the load control of different M2M applications. On the one hand, it can avoid or reduce the impact of the M2M application on the H2H application, which is beneficial to ensure the normal access or service of the H2H application. On the other hand, it is beneficial to ensure the normal M2M application. Access or conduct business.

In the embodiment of the present invention, the MTC Feature type of the M2M user equipment may include, for example, a time tolerant application with a weak real-time requirement, a priority alarm message (PAM) application with a strong real-time requirement, or Other types of applications.

In the embodiment of the present invention, the special M2M application may refer to the MTC feature of the M2M user equipment, which is a PAM application or other type of application, and may be an application of the M2M user equipment whose group ID is a special type of identifier.

The technical solution of the present invention will be described in more detail below through more specific embodiments. Embodiment 2

In this embodiment, when the load ratio of the mobility management network element M1 exceeds a set threshold or is overloaded, the access network element A1 and the M2M user equipment and the H2H user equipment are under the mobility management network element M1. The access is differentiated and the M2M user equipment is restricted from being accessed by the heavy load mobility management network element M1 to implement load control of the mobility management network element M1 as an example.

Referring to FIG. 3, a load control method according to Embodiment 2 of the present invention may include:

301. The access network element A1 learns the load control policy of the mobility management network element M1 about the M2M user equipment.

In an application scenario, the mobility management network element M1 may send the load control policy information about the M2M user equipment to the access network element A1 at any time after establishing a connection with the access network element A1. The message, or the mobility management network element M1 may include its load control policy information about the M2M user equipment in a message (eg, an S1 Setup Response message) that establishes a connection with the access network element A1. The access network element A1 receives the message including the mobility management network element M1 regarding the load control policy information of the M2M user equipment, and obtains the load control policy of the mobility management network element M1 about the M2M user equipment from the message, and Further known mobility tubes The network element M1 stores the load control policy information of the M2M user equipment.

In addition, the access network element A1 can also learn the load control policy of the mobility management network element M1 about the M2M user equipment from other devices (for example, the configuration server); or can also configure the mobility in the access network element A1. The management network element M1 is related to the load control policy of the M2M user equipment, and the access network element A1 can directly learn the load control policy of the mobility management network element M1 about the M2M user equipment from the local configuration.

The load control policy of the mobility management network element M1 on the M2M user equipment may be specifically determined according to a specific application scenario. For example, the load control policy of the mobility management network element M1 on the M2M user equipment may be based on the application feature or the group identifier of the M2M user equipment, and the M2M user equipment for different MTC Feature or Group ID in different scenarios. Load control strategy. The load control policy may specifically include: restricting the M2M user equipment from accessing the mobility management network element under different load conditions or overload conditions of the mobility management network element M1 according to different MTC Feature or Group ID of the M2M user equipment. Ml.

302. The access network element A1 learns the load status of the mobility management network element M1.

In an application scenario, the mobility management network element M1 may send a message including the current load status information of the mobility management network element M1 to the access network element A1, and the access network element A1 receives the message, and from the The load status of the mobility management network element M1 is known in the message.

In an application scenario, the access network element A1 obtains the load status of the mobility management network element M1, for example, by knowing the load ratio of the mobility management network element M1 to learn the load status of the mobility management network element M1, or It is also possible to know the load status of the mobility management network element M1 by knowing the indication that the mobility management network element M1 is overloaded.

For example, if the access network element A1 knows the load ratio of the mobility management network element M1, the load level of the mobility management network element M1 can be obtained by comparing with the set threshold (the load level can include: The load network element A1 can directly determine that the load status of the mobility management network element M 1 is overloaded if the overloaded indication of the mobility management network element M 1 is known. .

In practical applications, the load status of the mobility management network element M1 can be divided into multiple load levels such as light load, medium load, heavy load or overload, for example, the load can be defined below 70%. For light loads, the load is defined as a moderate load between 70% and 80%, the load is defined as a heavy load between 80% and 90%, and over 90% is defined as an overload. For example, the mobility management network element M1 may send a message including the load percentage or load level of the mobility management network element M1 to the access network element A1, or the access network element A1. A1 can learn the load status of the mobility management network element M1 from the message.

It can be understood that the mobility management network element M1 can notify the access network element A1 of the load status by adding a field in the existing process message or using the newly added message, and can also refer to the M2M user. The load control policy of the device notifies the access network element Al. The mobility management network element M1 may notify the access network element A1 of the load status of the M2M user equipment by using one or more messages, and may notify the access network element Al of the load control policy of the M2M user equipment.

Alternatively, when the mobility management network element M1 is overloaded, the mobility management network element M1 sends an Overlord Start message to the access network element A1, indicating that the mobility management network element M1 is currently in an overload state; After the mobility management network element M1 is overloaded, the mobility management network element M1 may send an Overlord Stop message to the access network element A1 to indicate that the mobility management network element M1 is currently in a non-overload state. The network element A1 can learn the load status of the mobility management network element M1 according to this. For example, the load control policy information about the M2M user equipment may be included in the overload start message sent by the mobility management network element, where the load control policy information about the M2M user equipment may be the load control policy information described above, or may be an indication. The establishment of the RRC (Radio Resource Control) connection of all M2M applications is rejected, or the establishment of the RRC connection of the M2M application and the emergency service of the priority alarm message service is only allowed.

303. If the load ratio of the mobility management network element M1 exceeds a set threshold or a mobility management control policy, the M2M user equipment is restricted from accessing the mobility management network element M1.

In an application scenario, the access network element A1 performs differential control on the access of the M2M user equipment and the H2H user equipment in the mobility management network element M1, and restricts the access of the M2M user equipment to the mobility management network element M1 ( That is, the load control of the mobility management network element M1 may include: the access network element A1 denies access of all the M2M user equipments under the mobility management network element M1 according to the load status of the mobility management network element M1; or The access network element A1 accepts the load according to the load status of the mobility management network element M1. The mobility management network element M1 accesses the M2M user equipment that is permitted to access in the load control policy of the M2M user equipment under the mobility management network element M1; or, the access network element A1 is based on the MTC Feature of the M2M user equipment or The group ID and the mobility management network element M1 load status, and the M2M user equipment is restricted to access by the mobility management network element M1 according to the corresponding percentage; or, the access network element A1 may also be based on the MTC Feature or Group of the M2M user equipment. The ID and the load status of the mobility management network element M1 dynamically limit the access rate of the M2M user equipment in the mobility management network element M1, and the number of M2M user equipments accessed by the mobility management network element M1 per unit time. If the maximum value is exceeded, the M2M user equipment with the same MTC Feature or Group ID can be denied access in a unit time.

For example, if the mobility management network element M1 is based on the load control policy of the M2M user equipment,

The MTC feature of the M2M user equipment, the load control policy of the mobility management network element M1 may include: For the M2M user equipment whose MTC Feature is Time Tolerant application, if the RRC connection request message (RRC connection request) message includes the mobile For example, if the M1 information of the mobility management network element M1 is used, the access rate of the M2M user equipment of the MTC Feature or the access rate of the M2M user equipment of the MTC Feature may be limited according to a set percentage, for example, If the mobility management network element M1 is lightly loaded, load control may not be performed. When the medium load is limited, 50% of the M2M user equipment of the MTC Feature is restricted or the access rate is limited to 500 times/second, heavy load or The RRC connection establishment request of the M2M user equipment of the MTC Feature is restricted when the overload occurs; if the mobility management network element M1 information is not included in the RRC connection establishment request message, the load status of the mobility management network element pool may be dynamically The MTC feature device of the MTC Feature selects a mobility management network element with a light or medium load. And according to the load status of the mobility management network element, the M2M user equipment of the MTC Feature is restricted to access or limit the access rate according to the set percentage. Of course, for other types of M2M applications, the load control strategy of the MTC Feature based on the M2M user equipment corresponding to the mobility management network element under different load conditions may be separately set according to the characteristics of the application.

For another example, if the load control policy of the mobility management network element M1 regarding the M2M user equipment is based on the group ID of the M2M user equipment, the load control policy of the mobility management network element M1 may include: The group ID is a special type of M2M user equipment. If the RRC connection establishment request message includes the mobility management network element M1 information, the group ID may be restricted according to the set percentage according to the load status of the mobility management network element M1. The access rate of the M2M user equipment or the access rate of the M2M user equipment of the Group ID is restricted, for example, the load control is not performed when the load is light, and the access or restriction of the M2M user equipment of the Group ID is limited by 20% during the medium load. The access rate is 1000 times/second, and the M2M user equipment that limits the group ID of 80% under heavy load is limited to 200 times/second. When the overload occurs, all M2M user equipments of the group ID are restricted. If the RRC connection establishment request message does not include the mobility management network element information, the mobility management network element pool load status may be dynamically selected to dynamically select a non-overload mobility for the M2M user equipment of the Group ID. The network element is managed, and according to the mobility management network element load status, the M2M user equipment of the Group ID is restricted to access or limit the access rate access according to the set percentage. The access network element A1 can perform load control on the mobility management network element M1 accordingly.

Of course, for the M2M user equipments with different group IDs, according to the characteristics of the M2M user equipments in the group, the load control policies of the group IDs of the M2M user equipments corresponding to the mobility management network elements under different load conditions may be respectively set. .

In particular, the access network element A1 learns the overload start message scenario from the mobility management network element M1. The overload start message may include the load control of the MTC feature or the group ID of the M2M user equipment of the mobility management network element M1. For example, the access network element A1 may reject the RRC connection established by the mobility management network element M1 for all M2M user equipments, or only the RRC of the M2M user equipment emergency service and the priority alarm message in the mobility management network element M1. Connection, etc. That is to say, by the overload start message, the mobility management network element M1 can instruct the access network element A1 to reject all RRC connections established by the M2M service, or only accept emergency services and priority alarm messages.

When performing load control of the mobility management network element, the access network element can obtain the MTC Feature or Group ID information of the M2M user equipment in multiple ways.

For example, the RRC connection request message initiated by the M2M user equipment to the access network element A1 may include the MTC Feature or Group ID information of the M2M user equipment, and the access network element A1 may be based on the MTC included in the message. Feature or group ID information, and the application feature or group identifier of the M2M user equipment is obtained. At this time, the access network element A1 can be based on the mobility management network element M1 based on the M2M. The load control rule of the MTC Feature or Group ID of the user equipment, the load status of the mobility management network element M1, and the learned MTC Feature or Group ID of the M2M user equipment, limiting the access or access rate of the M2M user equipment, thereby implementing Load control for the mobility management network element M1.

Alternatively, when the M2M application is introduced, the access cell of the M2M application is planned, so that the M2M user equipment accesses the access network element only through a specific cell, and the specific cell can only Allows M ² M user equipment access of a specific Group ID.

The specific implementation method may be as follows: The cell that accesses the M2M user equipment is referred to as an M2M cell, and the mapping relationship between the M2M cell and the specific group ID is established in the network element of the access network, and the M2M cell may include the M2M cell in the cell broadcast message. The corresponding group ID is such that, after receiving the cell broadcast message, the M2M user equipment selects the cell access if the group ID in the cell broadcast message is the same as the group ID of the cell broadcast message. The network element of the access network can support multiple cells. Each cell uses a corresponding group ID to distinguish different M2M user equipments. Therefore, different cell broadcast messages can contain different Group IDs and M2M users with different group IDs. The device can select the corresponding cell access according to its own group ID. The access network element can learn the RRC according to the cell that the M2M user equipment accesses, and the locally configured cell identifier and the group ID mapping information of the M2M user equipment. The Group ID information of the M2M user equipment that establishes the request.

In particular, the mapping information of the MTC Feature and the Group ID of the M2M user equipment may be configured locally on the access network element A1 or the mapping information of the MTC Feature and the Group ID of the M2M user equipment may be obtained by the radio access network from the configuration server. If the load control rule of the mobility management network element M1 learned by the access network element A1 in step 301 is based on the group ID, and the access network element A1 is currently aware of the MTC feature information of the M2M user equipment, then The network element A1 can learn the group ID of the M2M user equipment according to the mapping information of the MTC Feature and the Group ID that is configured locally or obtained from the configuration server, and performs load control according to this. Similarly, if the load control rule of the mobility management network element M1 learned by the access network element A1 in step 301 is based on the MTC Feature, the access network element A1 is currently aware of the Group ID information of the M2M user equipment. The access network element A1 can learn the MTC Feature of the M2M user equipment according to the mapping information of the MTC Feature and the Group ID locally configured or obtained from the configuration server, and perform load control according to this.

Further, the load control policy for the M2M user equipment is not based on the MTC Feature. For example, the load control policy of the group ID, for example, is based on the load control policy of all the M2M applications, and the M2M application information indicating the M2M user equipment may be obtained by using the foregoing multiple manners. For example, the M2M application indication may be included in the RRC connection request message. Information, or a specific cell can only allow M2M user equipment to access and other scenarios).

The access network element A1 performs load control of the mobility management network element M1, and may send an RRC Connection Accept message or an RRC Connection Reject message to the M2M user equipment according to the load control result, to indicate the M2M. The user device connection is accepted or rejected.

It can be understood that, in this embodiment, the load control of the mobility management network element M1 is performed by the access network element A1 as an example. Of course, the mobility management network element M1 may also be based on its own load status and about the M2M user. The load control policy of the device is used to control the load of the device. The load management principle of the mobility management network element M1 is also controlled by other third-party devices. The load control principle is similar, and is not described here.

It can be seen from the above that in the present embodiment, when the load ratio of the mobility management network element M1 exceeds a set threshold or is overloaded, the access network element A1 is heavily loaded with the mobility management network element of the M2M user equipment and the H2H user equipment. Under the access control, the M2M user equipment can be used to load the different M2M applications by limiting the access of the M2M user equipment to the heavy load mobility management network element. On the one hand, the J2 and M2M applications can be relatively avoided or reduced. The impact is beneficial to ensure the normal access of the H2H application, and on the other hand, it is beneficial to ensure the normal access of the special M2M application. Embodiment 3

In this embodiment, the service of the access network element A1 to the M2M user equipment and the H2H user equipment under the mobility management network element M1 is mainly when the load ratio of the mobility management network element M1 exceeds a set threshold or is overloaded. The difference control is performed to limit the traffic of the M2M user equipment to the mobility management network element M1 of the heavy load, so as to implement the load control of the mobility management network element M1 as an example.

Referring to FIG. 4, a load control method according to Embodiment 3 of the present invention may include:

401. The access network element A1 learns the load control policy of the mobility management network element M1 about the M2M user equipment.

The specific implementation manner of the load control policy of the M2M user equipment in step 401 can be referred to. According to step 301, it will not be described here.

The load control policy of the mobility management network element M1 on the M2M user equipment may be specifically determined according to a specific application scenario. For example, the load control policy of the mobility management network element M1 regarding the M2M user equipment may be based on an application feature (MTC Feature) or a group identifier (Group ID) of the M2M user equipment, and different MTCs in different scenarios. The load control policy of the M2M user device of the Feature or Group ID. The load control policy may specifically include: restricting, by the M2M user equipment, the M2M user equipment in the mobility management network element M1 under different load conditions or overload conditions of the mobility management network element M1 according to different MTCM or group IDs. Conduct business.

402. The access network element A1 is informed of the M2M user equipment that accesses the mobility management network element M1.

Information such as MTC Feature or Group ID.

In an application scenario, the M2M user equipment may initiate an Attach Request/TAU Request/RAU Request/Service Request to the mobility management network element M1. The message may include the MTC Feature or Group ID information of the M2M user equipment; or the source mobility management network element M0 may be in the MTC Feature or Group ID information of the target user equipment.

When the M2M user equipment initiates an attach request/tracking area update request/route and the new request/service request is accepted by the core network side, the access network element A1 can further learn from the mobility management network element M1. The MTC Feature or Group ID information of the M2M user equipment that is connected to the mobility management network element M1. Specifically, the MME may include the MTC Feature or Group ID information of the M2M user equipment in the Initial Context Setup Request message, and notify the access network element of the MTC Feature or Group ID information of the M2M user equipment. The 3G-SGSN may include the MTC Feature or Group ID information of the M2M user equipment in the Common ID message, and then notify the access network element of the MTC Feature or Group ID information of the M2M user equipment; 2G-SGSN The MTC Feature or Group ID information of the M2M user equipment may be included in the PFM-Create-BSS-PFC.Req message, and the MTC Feature or Group ID information of the M2M user equipment may be notified to the access network element. The radio access network element can further receive The MTC Feature or Group ID information of the M2M user equipment is stored in the UE context of the radio access network element, so that the radio access network element can perceive the MTC Feature or Group ID information of the M2M user equipment in the connected state.

403. The access network element A1 learns the load status of the mobility management network element M1.

For the specific implementation of the step 403, refer to step 302, and details are not described herein again.

404. If the load ratio of the mobility management network element M1 exceeds a set threshold or a mobility management control policy, restrict the service of the M2M user equipment in the mobility management network element M1.

In an application scenario, the access network element A1 performs differentiated control on the services of the M2M user equipment and the H2H user equipment under the heavy load mobility management network element M1, and limits the M2M user equipment to include: for different MTC Feature Or Group ID, according to the load status of the mobility management network element M1, initiates S1 connection release (SI Release) or Iu connection release (Iu Release) to the M2M user equipment accessing the mobility management network element M1 according to the set percentage. For the different MTC Feature or Group ID, according to the load status of the mobility management network element M1, initiate an RRC connection release to the M2M user equipment accessing the mobility management network element M1 according to the set percentage (RRC Connection Release) The process or the like; or for the different MTC Feature or Group ID, according to the load status of the mobility management network element M1, indicating that some or all of the M2M user equipments accessing the mobility management network element M1 are released in the RRC connection (RRC Connection Release) After the start of the tracking area update / routing area update (TAU / RAU) process, and tracking area update / routing area update please The message does not include the registered mobility management NE information; or for different MTC Feature or Group ID, according to the load status of the mobility management network element M1, the M2M user equipment is restricted from initiating the M2M user equipment according to the set ratio. Or paging for different MTC Feature or Group ID, according to the load status of the mobility management network element M1, limiting the transmission of data packets of the M2M user equipment according to the set ratio; or for different MTC Feature or Group ID According to the load status of the mobility management network element M1, the maximum number of data transmissions per unit time is set, and the transmission of data packets of the M2M user equipment is restricted.

For example, the access network element A1 can perform load control on the M2M user equipment under different load conditions of the mobility management network element M1 according to the MTC Feature or Group ID of the M2M user equipment. The proportion of the policy setting (the ratio may be any ratio between 0% and 100%), and may send a UE Context release request message or an Iu connection release request (Iu) to the mobility management network element M1. Release request ) message. For the 2G-SGSN, the BSS packet flow context can be deleted by PFM-Delete-BSS-PFC.Req. In addition, the access network element can be based on the MTC Feature or Group ID of the M2M user equipment. Under the different load conditions of the mobility management network element M1, according to the ratio set by the load control policy of the M2M user equipment (the ratio may be any ratio between 0% and 100%), sent to the M2M user equipment. The RRC Connection Release message may indicate that the M2M user equipment subsequently initiates a tracking area update/routing area update procedure, and the tracking area update/routing area update request message does not include the mobility management network element M1 information, The radio access network element A1 can switch the M2M user equipment to other lightly loaded mobility management network elements to reduce the burden on the heavy load mobility management network element M1. The M2M service is switched to the mobility management network element with a light load to implement load balancing of the mobility management network element, and load control of the mobility management network element M1 is implemented.

Further, the mobility management network element M1 may be restricted from initiating paging to the M2M user equipment. In an application scenario, after the mobility management network element M1 receives, for example, a downlink data (downlink PDU) or a downlink signaling (downlink signalling) message or a downlink data notification (downlink data notification) message delivered by the network side, the mobility management network element M1 moves. The mobility management network element M1 can restrict paging to the M2M user equipment according to the load control policy of the M2M user equipment, so as to reduce the processing load of the mobility management network element M1. For example, the mobility management network element M1 may set the proportion according to the load control policy of the M2M user equipment under different load conditions of the mobility management network element M1 according to the MTC Feature or Group ID of the M2M user equipment. Specifically, the ratio may be any ratio between 0% and 100%. The paging is initiated on the M2M user equipment (that is, the mobility management network element M1 does not page the M2M user equipment); or, the mobility management network element M1 is overloaded. In the state, the mobility management network element M 1 may limit all M2M user equipments or partial M2M user equipments of the MTC Feature or Group ID according to the MTC Feature or Group ID of the M2M user equipment (eg, according to the set ratio) The M2M user equipment of the MTC Feature or Group ID is called to initiate paging. For example, if the MTC Feature of the M2M user equipment is Time Tolerant, paging is restricted to the M2M user equipment of this type. Further, the transmission of the data packet of the mobility management network element M1 can be restricted. When the mobility management network element M1 receives the downlink data (Downlink PDU) sent by the network side, for example, the mobility management network element M1 can restrict the transmission of the data packet to the M2M user equipment according to the load control policy for the M2M user equipment to mitigate The processing load of the mobility management network element M1. For example, the mobility management network element M1 may be set according to the load control policy of the M2M user equipment according to the MTC Feature or Group ID of the M2M user equipment and the load status of the mobility management network element M1 (the ratio may be specifically 0. The transmission of the M2M user equipment data packet is restricted by the maximum number of data packet transmissions in the specified unit time (ie, the mobility management network element M1 does not transmit the M2M user equipment) data pack). For example, if the MTC Feature of the M2M user equipment is Time Tolerant, the M2M user equipment of this type is restricted from transmitting data packets.

It can be seen from the above that in the present embodiment, when the load ratio of the mobility management network element M1 exceeds a set threshold or is overloaded, the access network element A1 is heavily loaded with the mobility management network element of the M2M user equipment and the H2H user equipment. The service is differentiated and controlled. By limiting the access of the M2M user equipment to the heavy load mobility management network element, load control can be performed on different M2M applications, and the impact of the M2M application on the H2H application can be relatively avoided or reduced. It is beneficial to ensure the normal service of the H2H application, and on the other hand, it is beneficial to ensure the normal service of the special M2M application. Embodiment 4

In this embodiment, when the load ratio of the access network element A1 exceeds a set threshold or is overloaded, the access network element A1 connects the M2M user equipment and the H2H user equipment to the access network element A1. In the case of the difference control, the M2M user equipment is restricted from accessing the heavily loaded access network element A1 to implement load control on the access network element A1 as an example.

Referring to FIG. 5, a load control method according to Embodiment 4 of the present invention may include:

501. The access network element A1 is informed of the load control policy of the access network element A1 regarding the M2M user equipment.

In an application scenario, the load control policy of the access network element A1 on the M2M user equipment may be specifically formulated according to a specific application scenario, for example, based on an application feature (MTC Feature) or a group identifier of the M2M user equipment ( Group ID), etc., build its load control strategy for M2M user equipment. The load control policy may specifically include: according to the MTC of the M2M user equipment. The Feature or the Group ID restricts the access of the M2M user equipment to the access network element A1 under different load conditions of the access network element A1 or in an overload state.

The access network element A1 can learn the load control policy of the access network element A1 about the M2M user equipment from the local configuration or other related devices (for example, the configuration server).

502. The access network element A1 learns its own load status or overload status.

In an application scenario, the access network element A1 learns its own load status, for example, by knowing its own load ratio to know its own load status.

For example, if the access network element A1 knows its own load ratio, it can compare its own threshold with the set threshold to know its own load level (the load level can include: light load, medium load, heavy load, Overload, etc.).

In this embodiment, for example, the load status of the access network element A1 can be divided into multiple load levels such as light load, medium load, heavy load, overload, etc., for example, the load below 70% can be defined as light. The load is defined as a moderate load between 70% and 80%, a heavy load between 80% and 90%, and an overload of over 90%.

The access network element A1 can monitor its own load status and know its own load percentage or corresponding load level.

503. If the load ratio of the access network element A1 exceeds the set threshold or the access network element A1 is overloaded, the access network element A1 restricts the M2M user equipment from being connected according to its own load control policy for the M2M user equipment. The access network element A1 is connected.

In an application scenario, the access network element A1 performs different control on the access of the M2M user equipment and the H2H user equipment in the access network element A1, and restricts the access of the M2M user equipment to the access network element A1 ( That is, the load control of the access network element A1 may include: the access network element A1 denies access of all M2M user equipments to the access network element A1 according to the access network element A1; or, the access network The network element A1 accepts the access of the M2M user equipment that is permitted to be accessed by the access network element A1 in the load control policy of the M2M user equipment in the access network element A1 according to the load status of the access network element A1; or The access network element A1 restricts the access of the M2M user equipment to the access network element A1 according to the corresponding percentage of the MTC Feature or Group ID of the M2M user equipment and the load status of the access network element A1; or, access The network element A1 can also dynamically limit the access speed of the M2M user equipment in the access network element A1 according to the MTC Feature or Group ID of the M2M user equipment and the load status of the access network element A1. Rate: When the number of M2M user equipments connected to the network element A1 of the access network exceeds the maximum value, the M2M user equipment with the same MTC Feature or Group ID can be denied access in a unit time.

For example, if the load control policy of the access network element A1 for the M2M user equipment is based on the MTC Feature of the M2M user equipment, the load control policy of the access network element A1 may include: M2M for the Time Tolerant application for the MTC Feature The user equipment may limit the access of the M2M user equipment of the MTC Feature or the access rate of the M2M user equipment of the MTC Feature according to a set percentage of the access network element A1, for example, if accessing the network If the element A1 is lightly loaded, load control may not be performed. When the medium load is limited, 50% of the M2M user equipment of the MTC Feature is restricted or the access rate is limited to 500 times/second. When heavy load or overload is restricted, all restrictions are imposed. The RRC connection setup request of the M2M user equipment of the MTC Feature. The access network element A1 can perform load control on the access network element A1 accordingly.

Of course, for other types of M2M applications, the load control strategy of the MTC Feature based on the M2M user equipment under different load conditions or overload conditions may be separately set according to the characteristics of the application.

For example, if the load control policy of the access network element A1 for the M2M user equipment is based on the Group ID of the M2M user equipment, the load control policy of the access network element A1 may include: For the group ID, a special type of M2M user equipment According to the load status of the network element A1 of the access network, the access rate of the M2M user equipment of the group ID or the access rate of the M2M user equipment of the group ID is restricted according to a set percentage, for example, the load is not executed when the load is lightly loaded. Control, when the medium load is limited, 20% of the M2M user equipment of the Group ID is restricted or the access rate is limited to 1000 times/second, and the heavy load is limited to 80% of the Group ID of the M2M user equipment or The access rate is limited to 200 times/second. When overloading, the RRC connection establishment request of all M2M user equipments of the Group ID is restricted. The access network element A1 can perform load control on the access network element A1 accordingly.

Of course, for M2M user devices with other different Group IDs, you can press under the group.

The characteristics of the M2M user equipment are respectively set to load control policies corresponding to the Group ID of the M2M user equipment under different load conditions.

When performing load control on the access network element A1, the access network element A1 can be obtained in multiple ways. Know the MTC Feature or Group ID information of the M2M user equipment.

For the specific implementation of the MTC Feature or the Group ID of the M2M user equipment, the access network element A1 in this step can refer to step 303, and details are not described herein.

The access network element A1 performs its own load control, and may send an RRC connection accept message or an RRC connection reject message to the M2M user equipment according to the load control result, to indicate that the M2M user equipment connection is accepted or rejected.

It can be understood that, in this embodiment, the load network control performed by the access network element A1 is taken as an example. The load status of the access network element A1 and the access network element A1 regarding the M2M may be used by other entities. The load control policy of the user equipment performs load control on the access network element A1. The load control principle is similar, and is not described here.

It can be seen that, in this implementation, when the load ratio of the access network element A1 exceeds a set threshold or is overloaded, the access network element A1 accesses the access network element of the M2M user equipment and the H2H user equipment. The difference control is implemented to limit the access of the M2M user equipment to the heavily loaded access network element. The load control can be performed for different M2M applications. On the one hand, the impact of the M2M application on the H2H application can be avoided or reduced, which is beneficial to ensure the H2H application. Normal access, on the other hand, helps to ensure normal access to special M2M applications. Embodiment 5

In this embodiment, when the load ratio of the access network element A1 exceeds a set threshold or is overloaded, the access network element A1 and the M2M user equipment and the H2H user equipment are located under the access network element A1. The service performs the difference control, and the M2M user equipment is restricted to the service of the heavy-duty access network element A1 to implement the load control of the access network element A1 as an example.

Referring to FIG. 6, a load control method according to Embodiment 5 of the present invention may include:

601. The access network element A1 learns the load control policy of the access network element A1 regarding the M2M user equipment.

For the implementation of the step 601, refer to step 501, and details are not described herein again.

The access network element A1 can learn the load control policy of the access network element A1 about the M2M user equipment from the local configuration or other related equipment (such as the configuration server).

602. The access network element A1 is configured to access the M2M user equipment of the mobility management network element M1. MTC Feature or Group ID, etc.

For the implementation of the step 602, refer to step 402, and details are not described herein again.

603. The access network element A1 learns the load status of the access network element A1.

For the specific implementation of the step 603, refer to step 502, and details are not described herein again.

604. If the load ratio of the access network element A1 exceeds the set threshold or the access network element A1 is overloaded, the access network element A1 restricts the M2M user equipment according to its own load control policy for the M2M user equipment. The service of the network element A1 is carried out.

For example, the access network element A1 may be based on the learned load control policy about the M2M user equipment, the learned load status, and the MTC Feature or Group ID of the M2M user equipment currently accessing the access network element A1. The information, according to the set percentage, initiates the SI Release or Iu Release process for the connected M2M user equipment.

The Iu connection release request message may indicate that the release reason is that the access network element A1 is overloaded. For the 2G-SGSN, the BSS packet flow context can be deleted by using PFM-Delete-BSS-PFC.Req.

In an application scenario, the access network element A1 can limit the number of data packets transmitted by the accessed M2M user equipment in the unit time under the access network element A1, and the M2M user in the access network element A1. The number of data packets transmitted by the device in a unit time exceeds the set maximum value, and the data packets subsequently transmitted by the M2M user equipment in a unit time can be discarded; the access network element A1 can also be based on the MTC Feature of the M2M user equipment or The group ID and the load status of the access network element A1 discard the data packets transmitted by the M2M user equipment according to the set percentage.

In addition, the access network element A1 may be configured according to the load control policy of the M2M user equipment according to the MTC Feature or Group ID of the M2M user equipment under different load conditions of the access network element A1 (the ratio is specific) The RRC Connection Release message sent to the M2M user equipment in any ratio between 0% and 100% may indicate that the M2M user equipment immediately initiates a tracking area update/routing area update process, and selects a load comparison. Light access network element access.

In addition, in an application scenario, when the access network element A1 receives the paging message, the access network According to the MTC Feature or Group ID of the M2M user equipment, the network element may set the proportion according to the load control policy of the M2M user equipment under different load conditions of the access network element Al (the ratio may be 0%~ Any ratio between 100%) limits the paging of the M2M user equipment to reduce the processing load of the access network element A1.

For example, if the access network element A1 is based on the load control policy of the M2M user equipment, it is based on

The MTC feature of the M2M user equipment, the load control policy of the access network element A1 may include: For the M2M user equipment whose MTC Feature is Time Tolerant application, the MTC Feature may be restricted according to the load status of the access network element A1. The number of data packets transmitted by the M2M user equipment per unit time, or the data packets transmitted by the M2M user equipment of the MTC Feature are discarded according to the set percentage. For example, if the access network element A1 is slightly loaded, the load control may not be performed. When the M2M user equipment of the MTC Feature is limited, the maximum number of data packets transmitted per unit time is 500 packets/second or less. 50% of the data packets transmitted by the M2M user equipment of the MTC Feature; restrict the data packet transmission of all M2M user equipments of the MTC Feature under heavy load or overload, or initiate SI Release/Iu Release to all M2M user equipments of the MTC Feature , release the corresponding connection.

Of course, for other types of M2M applications, the load control strategy of the MTC Feature based on the M2M user equipment under different load conditions may be separately set according to the characteristics of the application.

For example, if the load control policy of the access network element A1 for the M2M user equipment is based on the group ID of the M2M user equipment, the load control policy of the access network element A1 may include: For the group ID, a special type of M2M user equipment According to the load status of the access network element A1, the number of data packets transmitted by the M2M user equipment of the Group ID in a unit time may be limited, or the data packet transmitted by the M2M user equipment of the Group ID may be discarded according to a set percentage. , or initiate the SI Release/Iu Release of the M2M user equipment corresponding to the Group ID. For example, when the load is light, the load control is not performed. When the load is moderate, 20% of the packets transmitted by the M2M user equipment of the Group ID are discarded or the maximum number of data packets transmitted per unit time is limited to 1000 packets/second. When heavy load is discarded, 80% of the packets transmitted by the M2M user equipment of the Group ID are discarded or the maximum number of data packets transmitted per unit time is limited to 200 packets/second. When overloaded, all M2M users of the Group ID are discarded. The data packet transmitted by the device, or the SI Release/Iu Rdeasc is initiated to 50% of the M2M user equipment of the Group ID. It can be understood that, in this embodiment, the load network control performed by the access network element A1 is taken as an example. The load status of the access network element A1 and the access network element A1 regarding the M2M may be used by other entities. The load control policy of the user equipment performs load control on the access network element A1. The load control principle is similar, and is not described here.

It can be seen that, in the implementation, when the load ratio of the access network element A1 exceeds a set threshold or is overloaded, the access network element A1 performs the services of the M2M user equipment and the H2H user equipment on the access network element A1. Differentiated control, which restricts the M2M user equipment from performing services on the heavily loaded access network element, and can perform load control on different M2M applications. On the one hand, it can relatively avoid or reduce the impact of M2M applications on H2H applications, which is beneficial to ensure H2H applications. The normal business is carried out, on the other hand, it is beneficial to ensure the normal business of special M2M applications. Embodiment 6

In this embodiment, when the load of the mobility management network element M1 connected to the access network element A1 exceeds the set threshold, the access network element A1 accesses the M2M user equipment and the H2H user equipment. The access control of the network element A1 is performed by using the broadcast message containing the restriction or the access indication to the M2M user equipment, and the M2M user equipment is restricted to access the access network element A1 to implement mobility management. The load control of the network element M1 is taken as an example for specific description.

Referring to FIG. 7, a load control method according to Embodiment 6 of the present invention may include:

701. The access network element A1 learns the load control policy of the mobility management network element M1 about the M2M user equipment.

For the implementation of the step 701, refer to step 301, and details are not described herein again.

702. The access network element A1 learns the load status of the mobility management network element M1.

For the implementation of the step 702, refer to step 302, and details are not described herein again.

703. If the load ratio of the mobility management network element M1 exceeds a set threshold or the mobility management network element M1 is overloaded, the access network element A1 follows the learned mobility management network element M1 with respect to the load control policy of the M2M user equipment. And sending an indication message of the restricted or allowed access type to the M2M user equipment, to limit the access of the M2M user equipment to the access network element A1.

In an application scenario, the access network element A1 can access the broadcast message according to the learned mobility management network element M1 regarding the load control rule of the M2M user equipment or the load status of the mobility management network element M1. (Access Classes) information indicates whether M2M users are currently allowed Access to the device, or indication of whether to allow access to certain types of MTC Feature or M2M user equipment of a specific Group ID.

For example, if the load ratio of the mobility management network element M1 exceeds the set threshold, the access network element A1 may include the indication that the M2M user equipment is not currently supported in the access control information of the delivered broadcast message. The indication information, or information indicating that the M2M user equipment currently only supports the priority alarm message service is accessed.

In particular, the scenario in which the access network element A1 learns the overload start message from the mobility management network element M1 (the overload start message may simultaneously include the load of the M2M user equipment based MTC Feature or Group ID of the mobility management network element M1) The control network is configured to indicate, in the broadcast message, the load control policy indicated by the mobility management network element M1 to the radio access network element A1. That is to say, through the overload initiation message, the mobility management network element M1 may instruct the access network element A1 to indicate in the broadcast message that the RRC connection established by all M2M services is denied, or only the emergency service and the priority alarm message are accepted.

The M2M user equipment obtains the MTC Feature or Group ID of the M2M user equipment that the access network element A1 currently supports or restricts by receiving the broadcast message, and determines whether it conforms to the access network according to its own MTC Feature or Group ID. The access type currently supported by the element A1, if it is met, may be selected to be accessed from the access network element A1.

It should be noted that, in the above manner, the load management policy of the mobility management network element M1 about the M2M user equipment is learned by the access network element A1, and the load status of the mobility management network element M1 is learned, and the mobility management network element M1 is obtained. When the load ratio exceeds the set threshold or the mobility management network element M1 is overloaded, according to the learned mobility management network element M1 regarding the load control policy of the M2M user equipment, the access control information of the broadcast message includes whether the current indication is included. The description of the type of the M2M user equipment that is accessed by the M2M user equipment or the type of the M2M user equipment that is currently supported is used to restrict the access of the M2M user equipment from the access network element A1 as an example.

Of course, the access network element A1 can also learn its own load control policy for the M2M user equipment, learn its own load status, and follow its own load ratio when the load ratio exceeds the set threshold or the access network element is overloaded. Regarding the load control policy of the M2M user equipment, the indication information of the type of the M2M user equipment that supports the M2M user equipment access or the current support access is included in the access control information of the broadcast message to limit the M2M user equipment from the heavy load. Access network The access of the network element Al is similar, and is not repeated here.

It can be seen that, in this embodiment, the access network element uses the broadcast message to indicate to the M2M user equipment whether the M2M user equipment is currently supported, or the type of the M2M user equipment that is currently supported or restricted, and the M2M user can be restricted. When the access network element or the mobility management webpage is overloaded, the device still accesses the network element of the access network, and can perform load control on different M2M applications, which is beneficial to ensure normal access of the H2H application, and can be avoided. Or reduce the impact of M2M applications on H2H applications, on the other hand, it is beneficial to ensure normal access of special M2M applications.

In order to facilitate the implementation of the technical solution of the embodiment of the present invention, a load control device is further provided in the embodiment of the present invention. Example VII.

Referring to FIG. 8, a load control apparatus 800 according to Embodiment 7 of the present invention may include: a load learning module 810 and a limiting module 820.

The load learning module 810 is configured to learn the load status of the first network side network element.

In an application scenario, if the load control device 800 is located in the first network side network element, the load learning module 810 can directly learn the load status of the first network side network element by monitoring; if the load control device 800 is not located in the first network. In the side network element, the load learning module 810 can learn the load status of the network element of the first network side by receiving the message indicating the indication information indicating the load status of the network element of the first network side.

It can be understood that the load learning module 810 can learn the load status of the first network side network element by, for example, knowing the load ratio of the first network side network element to learn the load status of the first network side network element, or An indication that the network side network element is overloaded is used to learn the load status of the first network side network element.

For example, if the load learning module 810 knows the load ratio of the first network side network element, the load level of the first network side network element can be obtained by comparing with the set threshold (the load level can include: light load, medium load) Load, heavy load, overload, etc., each load level corresponds to a different load ratio threshold). If the indication of the overload of the first network side network element (for example, an overload indication message) is known, the first network side network can be directly determined. The load condition of the element is overloaded. The limiting module 820 is configured to: when the load ratio of the first network side network element learned by the load learning module 810 exceeds a set threshold or the first network side network element is overloaded, according to the first network side network element about the M2M user equipment The load control policy restricts the M2M user equipment from accessing or performing services under the network element of the first network side.

It can be understood that the load threshold for the restriction module 820 to initiate load control on the first network side network element can be specifically set according to specific conditions, for example, can be set to 50%, 80%, 90% or other ratios.

The load control policy of the first network side network element about the M2M user equipment can be flexibly set and adjusted according to a specific application scenario. The load control policy of the first network side network element for the M2M user equipment may be, for example, a load that is flexibly constructed based on the MTC Feature or the Group ID of the M2M user equipment, and the load of the M2M user equipment for different MTC Feature or Group ID in different scenarios. Control Strategy.

For example, the load control policy may specifically include: limiting M2M user equipment on the first network side under different load conditions of the first network side network element for the M2M user equipment of different MTC Feature or Group ID The network element accesses or performs services, thereby implementing load control on the first network side network element.

The restriction module 820 performs the difference control between the M2M user equipment and the H2H user equipment on the first network side network element access or service, and restricts the M2M user equipment from accessing or performing the service on the first network side network element, for example, may include: All the M2M user equipments are connected to the first network side network element, or only the first network side network element is allowed to access the M2M user equipment in the load control policy of the M2M user equipment. Accessing, or limiting the access ratio of the M2M user equipment to the first network side network element (the access ratio may be any ratio between 0% and 100%), or limiting the M2M user equipment to the first network side network The access rate of the element (which may be, for example, 0 times/second, 100 times/second, 500 times/second or other rate), or by delivering an MTC Feature or Group containing the M2M user equipment currently supported for access. The cell broadcast message of the ID information, to indicate that some or all of the M2M user equipments are currently prohibited from accessing the first network side network element, and try to select other equipments to access, etc.; limiting the M2M user equipment on the first network side For example, the network element may include: limiting the proportion of the M2M user equipment transmitting the data packet in the first network side network element (the ratio may be any ratio between 0% and 100%), or limiting the M2M user equipment in the first The maximum number of data packets transmitted per unit time under one network side network element (the maximum number can be 0 packets/second, 100 packets/second, 500 packets/second or other most Large number), or limit the number or proportion of connections of the M2M user equipment under the first network side network element, or according to the set ratio (the ratio may be any ratio between 0% and 100%) to the M2M The user equipment sends a page, etc. The restriction module 820 can restrict the M2M user equipment from accessing or performing services under the first network side network element to implement load control on the first network side network element. Of course, the restriction module 820 in this embodiment is not limited to the manner in which the M2M user equipment is restricted to access or perform services under the first network side network element by using the foregoing example.

In an application scenario, if the load control device 800 is an access network element or is disposed in an access network element, the first network side network element is a mobility management network element.

The load learning module 810 can be specifically configured to obtain the load status of the mobility management network element by receiving a message including the load status of the mobility management network element.

The restriction module 820 may include: a first learned sub-module, a second learned sub-module, and a first access restriction sub-module.

The first learned sub-module is configured to learn application characteristics or group identification information of the M2M user equipment.

The second learned sub-module is configured to learn the load control policy information of the mobility management network element based on the application feature or the group identifier of the M2M user equipment.

a first access restriction submodule, configured to: according to the application feature of the mobility management network element based on the M2M user equipment, when the load ratio of the mobility management network element exceeds a set threshold or the mobility management network element is overloaded Or the load control policy of the group identifier, which restricts the M2M user equipment from accessing or performing services under the mobility management network element.

In an application scenario, if the load control device 800 and the first network side network element are the same access network element, or are disposed in the first network side network element,

The load learning module 810 can be specifically configured to learn the load status of the access network element itself. The restriction module 820 may include: a first learned sub-module and a second access restriction sub-module.

The first learned sub-module is configured to learn the application feature or the group identification information of the M2M user equipment; the second restriction sub-module is configured to: the load ratio of the access network element exceeds a set threshold or the access network When the network element is overloaded, the M2M user equipment is restricted from accessing or performing services under the access network element according to the application characteristics of the M2M user equipment or the load control policy of the group identity. In an application scenario, the first learned sub-module may be configured to obtain an application feature or a group identity information of the M2M user device by receiving a message that includes the application feature or the group identity information of the M2M user device; or The application feature or the group identification information of the M2M user equipment is obtained according to the access cell of the M2M user equipment, where the application feature or the group identification information of the cell and the M2M user equipment have a mapping relationship.

In an application scenario, the first learned sub-module may be configured to obtain an M2M user by receiving a message that is sent by the mobility management network element or the M2M user equipment and includes an application feature or a group identity information of the M2M user equipment. Application characteristics or group identification information of the device.

In an application scenario, if the load control device 800 and the first network side network element are the same mobility management network element, or are disposed in the mobility management network element,

The load learning module 810 can be used to learn the current load status of the mobility management network element itself. The limiting module 820 may be configured to: when the load ratio of the mobility management network element learned by the load learning module exceeds a set threshold or the mobility management network element is overloaded, according to the mobility management network element, the M2M user equipment The load control policy restricts the M2M user equipment from accessing or performing services under the mobility management network element.

In an application scenario, if the restriction module 820 is configured to limit the access of the M2M user equipment to the first network side network element, the restriction module 820 may specifically include:

The third restriction sub-module is configured to reject all M2M user equipments on the first network side network when the load learning module 810 learns that the load ratio of the first network side network element exceeds a set threshold or the first network side network element is overloaded. Access under the yuan;

Or

The fourth access restriction sub-module is configured to receive only the first network side network element when the load learning module 810 learns that the load ratio of the first network side network element exceeds a set threshold or the first network side network element is overloaded. The access of the M2M user equipment that is permitted to access in the load control policy of the M2M user equipment is performed under the network element of the first network side;

Or

The fifth access restriction sub-module is configured to: according to the load of the first network side network element, when the load learning module 810 learns that the load ratio of the first network side network element exceeds a set threshold or the first network side network element is overloaded Status, and application characteristics or group ID of the M2M user equipment, according to the set ratio, The access of the M2M user equipment under the network element of the first network side;

Or

a sixth access restriction sub-module, configured to: when the load learning module 810 learns that the load ratio of the first network side network element exceeds a set threshold or the first network side network element is overloaded, according to the load of the first network side network element The status and the application feature or the group identifier of the M2M user equipment, and limit the access of the M2M user equipment to the network element of the first network side according to the maximum value of the allowed access rate;

Or

The seventh access restriction sub-module is configured to: when the load learning module 810 learns that the load ratio of the first network side network element exceeds a set threshold or the first network side network element is overloaded, according to the load of the first network side network element A broadcast message containing an application feature or group identity information of an M2M user equipment that supports or restricts access is used to limit access of the M2M user equipment to the network element on the first network side.

In an application scenario, if the restriction module 820 is configured to limit the M2M user equipment to perform the service on the first network side network element, the restriction module 810 may specifically include:

The third service restriction sub-module is configured to: according to the load status of the first network side network element, when the load learning module 810 learns that the load ratio of the first network side network element exceeds a set threshold or the first network side network element is overloaded And the application feature or group identifier of the M2M user equipment, and initiate a connection release process for the M2M user equipment according to the set ratio;

Or

The fourth service restriction sub-module is configured to: according to the load status of the first network side network element, when the load learning module 810 learns that the load ratio of the first network side network element exceeds a set threshold or the first network side network element is overloaded And the application feature or the group identifier of the M2M user equipment, and restricting the M2M user equipment from initiating paging to the M2M user equipment according to the set ratio;

Or

The fifth service restriction sub-module is configured to: according to the load status of the first network side network element, when the load learning module 810 learns that the load ratio of the first network side network element exceeds a set threshold or the first network side network element is overloaded And the application feature or group identifier of the M2M user equipment, and limit the transmission of the data packet of the M2M user equipment according to the set ratio.

Or

a sixth service restriction submodule, configured to learn, at the load learning module 810, the negative of the first network side network element When the load ratio exceeds the set threshold or the network element of the first network side is overloaded, according to the load status of the network element of the first network side, and the application feature or group identifier of the M2M user equipment, the data is allowed according to the set unit time. The maximum number of transmissions, limiting the transmission of data packets from M2M user equipment.

It should be noted that the load control device 800 of the embodiment may be specifically configured in the mobility management network element M1 or the access network element A1 in the foregoing method embodiment, or other devices, and may be used to implement the foregoing method embodiments. For the technical solutions of the present invention, the functions of the respective functional modules may be specifically implemented according to the method in the foregoing method embodiments. For the specific implementation process, refer to the related description in the foregoing embodiments, and details are not described herein again.

As can be seen from the above, in the embodiment, the load control device 800 performs different control on the access or service of the M2M user equipment and the H2H user equipment on the heavily loaded network side device, and restricts the M2M user equipment from being connected to the heavily loaded network side device. Incoming or performing services, load control can be performed for different M2M applications. On the one hand, it can avoid or reduce the impact of M2M applications on H2H applications, which is beneficial to ensure normal access or service of H2H applications. On the other hand, it is beneficial to guarantee special M2M. Normal access or business of the application.

In order to facilitate the implementation of the technical solution of the embodiment of the present invention, an access network element is further provided in the embodiment of the present invention. Example VIII.

Referring to FIG. 9, an access network element 900 of the seventh embodiment of the present invention may include: a load learning module 910 and a limiting module 920.

The load learning module 910 is configured to learn the load status of the first network side network element.

The first network side network element may be an access network element 900, or a mobility management network element connected to the access network element 900, or other device.

In an application scenario, if the first network side network element is the access network network element 900, the load learning module 910 can directly learn the load status of the first network side network element by monitoring; The load management module 910 can learn the load status of the first network side network element by receiving a message including the indication information indicating the load status of the first network side network element.

It can be understood that the load learning module 910 can learn the load status of the first network side network element by, for example, knowing the load ratio of the first network side network element to learn the load status of the first network side network element, or can also learn by An indication that the network side network element is overloaded to learn the load of the first network side network element Status.

For example, if the load learning module 910 knows the load ratio of the first network side network element, the load level of the first network side network element can be obtained by comparing with the set threshold (the load level can include: light load, medium load) Load, heavy load, overload, etc., each load level corresponds to a different load ratio threshold). If the indication of the overload of the first network side network element (for example, an overload indication message) is known, the first network side network can be directly determined. The load condition of the element is overloaded.

The limiting module 920 is configured to: when the load ratio of the first network side network element learned by the load learning module 910 exceeds a set threshold or the network element of the first network side is overloaded, according to the first network side network element, the M2M user equipment The load control policy restricts the M2M user equipment from accessing or performing services under the network element of the first network side.

It can be understood that the load threshold for the restriction module 920 to initiate load control on the first network side network element can be specifically set according to specific conditions, for example, can be set to 50%, 80%, 90% or other ratios.

The load control policy of the first network side network element about the M2M user equipment can be flexibly set and adjusted according to a specific application scenario. The load control policy of the first network side network element for the M2M user equipment may be, for example, based on the application feature or the group identity of the M2M user equipment, and the M2M user equipment for different MTC Feature or Group ID in different scenarios. Load control strategy.

The restriction module 920 performs the difference control between the M2M user equipment and the H2H user equipment on the first network side network element access or service, and restricting the M2M user equipment to access the first network side network element, for example, may include: rejecting all M2M users. The access of the device under the first network side network element, or only the access of the M2M user equipment that is permitted to be accessed by the first network side network element in the load control policy of the M2M user equipment, Or limiting the access ratio of the M2M user equipment to the first network side network element (the access ratio may be any ratio between 0% and 100%), or restricting the M2M user equipment from being connected to the first network side network element. Incoming rate (this access rate can be, for example, 0 times/second, 100 times/second, 500 times/second or other rate), or by delivering the currently supported access A cell broadcast message of the MTC feature or the group ID information of the M2M user equipment, to indicate that some or all of the M2M user equipments are currently prohibited from accessing the first network side network element, and try to select other equipments to access, etc.; For example, the network side network element may include: limiting the proportion of the M2M user equipment transmitting the data packet in the first network side network element (the ratio may be any ratio between 0% and 100%), or limiting the M2M user. The maximum number of data packets transmitted by the device in a unit time under the first network side network element (the maximum number may be 0 packets/second, 100 packets/second, 500 packets/second or other maximum number), or limited. The number or proportion of connections of the M2M user equipment in the network element of the first network side, or the paging of the M2M user equipment according to the set ratio (the ratio may be any ratio between 0% and 100%) . The restriction module 920 can implement load control on the first network side network element accordingly. Of course, the restriction module 920 in this embodiment is not limited to the manner in which the M2M user equipment is restricted to access or perform services under the first network side network element by using the foregoing example.

It should be noted that the access network element 900 of the present embodiment may be used as the access network element A1 in the foregoing method embodiment, and may be used to implement all the technical solutions in the foregoing method embodiments, and the functions of the various functional modules. The method in the foregoing method embodiment may be specifically implemented. For the specific implementation process, reference may be made to the related description in the foregoing embodiments, and details are not described herein again.

It can be seen that, in this embodiment, the access network element 900 controls the access or service of the M2M user equipment and the H2H user equipment on the heavily loaded network side device, by limiting the M2M user equipment to the heavily loaded network. On the other hand, the device can be connected to the M2M application for load control. This can prevent or reduce the impact of the M2M application on the H2H application. This helps ensure the normal access or service of the H2H application. Ensure normal access or service of special M2M applications.

In order to facilitate the implementation of the technical solution of the embodiment of the present invention, a mobility management network element is further provided in the embodiment of the present invention. Example IX.

Referring to FIG. 10, a mobility management network element 1000 according to Embodiment 7 of the present invention may include: a load learning module 1010 and a restriction module 1020.

The load learning module 1010 is configured to learn the load status of the first network side network element.

The limiting module 1020 is configured to: when the load learning module 1010 learns that the load ratio of the first network side network element exceeds a set threshold or the first network side network element is overloaded, according to the first network side network element The load control policy of the M2M user equipment restricts the M2M user equipment from accessing or performing services under the network element of the first network side.

In an application scenario, if the mobility management network element 1000 and the first network side network element are the same mobility management network element, the restriction module 1020 may include:

a first access restriction sub-module, configured for the mobility management network element learned by the load learning module 1010

When the load ratio of the 1000 exceeds the set threshold or the mobility management network element 1000 is overloaded, all M2M user equipments are denied access to the mobility management network element 1000;

The second access restriction sub-module is configured to accept only the mobility management network element 1000 when the load management ratio of the mobility management network element 1000 learned by the load learning module 1010 exceeds a set threshold or the mobility management network element 1000 is overloaded. The access of the M2M user equipment that is permitted to access in the load control policy of the M2M user equipment under the mobility management network element 1000;

Or

The first service restriction submodule is configured to: according to the load of the mobility management network element 1000, when the load ratio of the mobility management network element 1000 learned by the load learning module 1010 exceeds a set threshold or the mobility management network element 1000 is overloaded The status, and the application feature or group identifier of the M2M user equipment, limit the paging to the M2M user equipment according to the set ratio;

Or

The second service restriction sub-module is configured to: according to the load of the mobility management network element 1000, when the load ratio of the mobility management network element 1000 learned by the load learning module 1010 exceeds a set threshold or the mobility management network element 1000 is overloaded The status, and the application feature or group identifier of the M2M user equipment, restrict the transmission of the data packet of the M2M user equipment according to the set ratio;

Or

The third service restriction submodule is configured to: according to the load of the mobility management network element 1000, when the load ratio of the mobility management network element 1000 learned by the load learning module 1010 exceeds a set threshold or the mobility management network element 1000 is overloaded The status, and the application characteristics or group identifier of the M2M user equipment, limit the transmission of data packets of the M2M user equipment according to the maximum number of data transmissions allowed per unit time.

It should be noted that the mobility management network element 1000 of this embodiment may be used as the mobility management network element M1 in the foregoing method embodiment, which may be used to implement all the technical solutions in the foregoing method embodiments. The functions of the various functional modules may be specifically implemented according to the method in the foregoing method embodiment. For the specific implementation process, reference may be made to the related description in the foregoing embodiments, and details are not described herein again.

It can be seen that, in this embodiment, the mobility management network element 1000 performs differential control on the access or service of the M2M user equipment and the H2H user equipment on the heavily loaded network side device, by limiting the M2M user equipment in heavy load. On the other hand, the network side device can access the service or the device. The load control can be implemented for different M2M applications. On the one hand, the impact of the M2M application on the H2H application can be avoided or reduced, which is beneficial to ensure the normal access or service of the H2H application. It is beneficial to ensure normal access or business of special M2M applications.

Correspondingly, the embodiment of the present invention further provides a communication system, which may include the load control device 800 in the seventh embodiment, or the access network element 900 in the eighth embodiment, or the ninth embodiment. Mobility Management Network Element 1000.

It should be noted that, for each of the foregoing method embodiments, for the description of the package, it is expressed as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the described action sequence. Because certain steps may be performed in other sequences or concurrently in accordance with the present invention. In addition, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

In the above embodiments, the descriptions of the various embodiments are different, and the details are not described in detail in an embodiment, and the related descriptions of other embodiments can be referred to.

In summary, in the technical solution of the embodiment of the present invention, when the load ratio of the network side device exceeds a set threshold or is overloaded, access of the M2M user equipment and the H2H user equipment to the heavily loaded network side device or The service performs the difference control. By restricting the M2M user equipment from accessing or performing services on the heavily loaded network side device, the load control can be performed for different M2M applications. On the one hand, the impact of the M2M application on the H2H application can be avoided or reduced, which is beneficial to ensure The normal access or service of the H2H application is beneficial to ensure normal access or service of a special M2M application.

A person skilled in the art may understand that all or part of the various steps of the foregoing embodiments may be performed by a program to instruct related hardware. The program may be stored in a computer readable storage medium, and the storage medium may include: Read-only memory (ROM, Read-Only Memory) or random access memory (RAM, Random Access Memory), disk or CD.

The above is a load control method and device and a communication system provided by an embodiment of the present invention. The description of the above embodiments is only for helping to understand the method and the core idea of the present invention; at the same time, for those skilled in the art, according to the idea of the present invention, there are some changes in the specific embodiments and application scopes. In summary, the content of the specification should not be construed as limiting the invention.

Claims

Rights request

A load control method, comprising:

Obtaining the load status of the network element on the first network side;

The method according to claim 1, wherein the restricting the access of the M2M user equipment to the network element of the first network side according to the load control policy of the M2M user equipment of the first network side network element includes:

Rejecting access of all M2M user equipments on the first network side network element;

Or

Only the access of the M2M user equipment that is permitted to be accessed by the first network side network element in the load control policy of the M2M user equipment is received by the first network side network element;

Or

Limiting the access of the M2M user equipment to the network element of the first network side according to the set ratio according to the load status of the network element of the first network side and the application feature or the group identifier of the M2M user equipment; or

Limiting the access of the M2M user equipment to the network element of the first network side according to the maximum value of the allowed access rate according to the load status of the network element of the first network side and the application feature or the group identifier of the M2M user equipment. ;

Or

And transmitting, according to the load status of the network element of the first network side, a broadcast message that includes the application feature or the group identity information of the M2M user equipment that supports or restricts the access, so as to limit the connection of the M2M user equipment to the network element of the first network side. In.

The method according to claim 1, wherein the restricting the M2M user equipment to perform services on the first network side network element according to the load control policy of the first network side network element with respect to the M2M user equipment includes:

And according to the load status of the network element of the first network side, and the application feature or group identifier of the M2M user equipment, initiate a connection release process for the M2M user equipment according to the set ratio; or

Limiting the M2M user equipment to initiate paging to the M2M user equipment according to the set ratio according to the load status of the first network side network element and the application feature or the group identifier of the M2M user equipment; or

Limiting the transmission of the data packet of the M2M user equipment according to the set ratio according to the load status of the network element of the first network side and the application feature or the group identifier of the M2M user equipment;

Or

According to the load status of the first network side network element and the application feature or group identifier of the M2M user equipment, the transmission of the data packet of the M2M user equipment is restricted according to the maximum number of allowed data transmissions per unit time.

The method according to claim 1, wherein, if the first network side network element is a mobility management network element,

The obtaining the load status of the network element of the first network side includes:

The access network element obtains the load status of the mobility management network element by receiving a message that includes the load status of the mobility management network element.

If the load ratio of the first network side network element exceeds the set threshold or the network element of the first network side is overloaded, the M2M user equipment is restricted according to the load control policy of the first network side network element regarding the M2M user equipment. Accessing or performing services on the network side network element, including:

The access network element learns the application feature or group identification information of the M2M user equipment;

The access network element learns the load control policy information of the mobility management network element based on the application feature of the M2M user equipment or the group identity;

If the load ratio of the mobility management network element exceeds a set threshold or the mobility management network element is overloaded, the access network element is based on the application feature or group of the M2M user equipment according to the mobility management network element. The identified load control policy restricts the M2M user equipment from accessing or performing services under the mobility management network element.

The method according to claim 1, wherein, if the first network side network element is an access network element,

If the load ratio of the first network side network element exceeds the set threshold or the network element of the first network side is overloaded, the M2M is restricted according to the load control policy of the first network side network element regarding the M2M user equipment. The user equipment accesses or performs services under the network element of the first network side, including:

If the load ratio of the access network element exceeds a set threshold or the access network element is overloaded, the access network element is based on the application feature of the M2M user equipment according to the access network element or The load control policy of the group identifier restricts the M2M user equipment from accessing or performing services under the access network element.

The method according to claim 4 or 5, wherein the access network element obtains an application feature or group identification information of the M2M user equipment, including:

The access network element obtains the application feature or the group identification information of the M2M user equipment by receiving the message containing the application feature or the group identity information of the M2M user equipment.

Or

The access network element learns the application feature or the group identification information of the M2M user equipment according to the access cell of the M2M user equipment, where the application feature or the group identification information of the M2M user equipment has a mapping relationship.

7. The method of claim 6 wherein:

The access network element receives the application feature or the group identification information of the M2M user equipment, and obtains the application feature or the group identification information of the M2M user equipment, including:

The access network element obtains an application feature or group identification information of the M2M user equipment by receiving a message that is sent by the mobility management network element and includes an application feature or a group identity information of the M2M user equipment.

Or

The access network element obtains the application feature or group identification information of the M2M user equipment by receiving a message that is sent by the M2M user equipment and includes the application feature or the group identity information of the M2M user equipment.

8. A load control device, comprising:

a limiting module, configured to: according to the load of the first network side network element about the M2M user equipment, when the load learning module learns that the load ratio of the first network side network element exceeds a set threshold or the first network side network element is overloaded Controlling the policy, restricting the M2M user equipment from accessing or performing on the network element of the first network side Business.

The load control device according to claim 8, wherein if the load control device is an access network element, the first network side network element is a mobility management network element,

The load learning module is specifically configured to learn the load status of the mobility management network element by receiving a message that includes the load status of the mobility management network element.

The limiting module includes:

The first learned sub-module is configured to learn the application feature or the group identification information of the M2M user equipment, and the second learned sub-module is configured to learn the load of the mobility management network element based on the application feature or the group identifier of the M2M user equipment. Control strategy information;

a first restriction submodule, configured to: according to the application of the mobility management network element based on the M2M user equipment, when the load ratio of the mobility management network element exceeds a set threshold or the mobility management network element is overloaded The load control policy of the feature or group identifier restricts the M2M user equipment from accessing or performing services under the mobility management network element.

The load control device according to claim 8, wherein, if the load control device and the first network side network element are the same access network element,

The load learning module is specifically configured to learn the load status of the access network element itself; the limiting module includes:

The first learned sub-module is configured to learn the application feature or the group identification information of the M2M user equipment; the second restriction sub-module is configured to: the load ratio of the access network element exceeds a set threshold or the connection When the network element of the access network is overloaded, the M2M user equipment is restricted from accessing or performing services under the access network element according to the application feature of the M2M user equipment or the load control policy of the group identifier.

A load control device according to claim 9 or 10, characterized in that

The first learned sub-module is configured to obtain an application feature or group identification information of the M2M user equipment by receiving a message that includes the application feature or the group identification information of the M2M user equipment;

Or,

For the access cell of the M2M user equipment, the application feature or the group identity information of the M2M user equipment is obtained, where the application feature or the group identity information of the cell and the M2M user equipment have a mapping relationship.

12. The load control device according to claim 11, wherein:

The first learned sub-module is configured to obtain an application feature or a group of the M2M user equipment by receiving a message that is sent by the mobility management network element or the M2M user equipment, and includes an application feature or a group identity information of the M2M user equipment. Identification information.

The load control device according to claim 8, wherein the load control device and the first network side network element are the same mobility management network element, and the method includes:

a load learning module, configured to learn the current load status of the mobility management network element itself, and a limiting module, configured to: when a load ratio of the mobility management network element learned by the load learning module exceeds a set threshold or When the mobility management network element is overloaded, the M2M user equipment is restricted from accessing or performing services under the mobility management network element according to the load control policy of the mobility management network element regarding the M2M user equipment.

14. The load control device according to claim 8, wherein:

If the limiting module is configured to limit the access of the M2M user equipment to the first network side network element, the limiting module specifically includes:

a third access restriction sub-module, configured to reject all M2M user equipments in the first when the load learning module learns that the load ratio of the first network side network element exceeds a set threshold or the first network side network element is overloaded Access under the network side network element;

Or

The fourth access restriction sub-module is configured to accept only the first network side network element when the load learning module learns that the load ratio of the first network side network element exceeds a set threshold or the first network side network element is overloaded. The M2M user equipment that is permitted to access in the load control policy of the M2M user equipment is accessed by the first network side network element;

Or

a fifth access restriction submodule, configured to: when the load learning module learns that the load ratio of the first network side network element exceeds a set threshold or the first network side network element is overloaded, according to the first network side network element The load status, and the application feature or the group identifier of the M2M user equipment, restrict the access of the M2M user equipment to the network element of the first network side according to the set ratio;

Or

a sixth access restriction submodule, configured to learn, by the load learning module, a negative of the first network side network element When the load ratio exceeds the set threshold or the network element of the first network side is overloaded, according to the load status of the network element of the first network side and the application feature or group identifier of the M2M user equipment, the maximum allowed access rate is set according to The value of the M2M user equipment is restricted to access by the first network side network element;

Or

a seventh access restriction sub-module, configured to: when the load learning module learns that the load ratio of the first network side network element exceeds a set threshold or the first network side network element is overloaded, according to the first network side network element The load condition is sent to the broadcast message including the application feature or the group identity information of the M2M user equipment that supports or restricts the access, so as to limit the access of the M2M user equipment to the network element on the first network side.

15. The load control device according to claim 8, wherein:

If the limiting module is configured to limit the M2M user equipment to perform the service on the first network side network element, the limiting module includes:

a third service restriction submodule, configured to: when the load learning module learns that the load ratio of the first network side network element exceeds a set threshold or the first network side network element is overloaded, according to the load of the first network side network element The status, and the application feature or group identifier of the M2M user equipment, initiate a connection release process for the M2M user equipment according to the set ratio;

Or

And a fourth service restriction submodule, configured to: when the load learning module learns that the load ratio of the first network side network element exceeds a set threshold or the first network side network element is overloaded, according to the load of the first network side network element The status, and the application feature or group identifier of the M2M user equipment, restrict the M2M user equipment from initiating paging to the M2M user equipment according to the set ratio;

Or

a fifth service restriction submodule, configured to: according to the load of the first network side network element, when the load learning module learns that the load ratio of the first network side network element exceeds a set threshold or the first network side network element is overloaded The status, and the application characteristics or group identification of the M2M user equipment, limit the transmission of data packets of the M2M user equipment according to the set ratio.

Or

a sixth service restriction submodule, configured to: when the load learning module learns that the load ratio of the first network side network element exceeds a set threshold or the first network side network element is overloaded, according to the load of the first network side network element Status, and application characteristics or group ID of the M2M user equipment, according to the set unit time The maximum number of data transmissions allowed, limiting the transmission of data packets from M2M user equipment.

16. A communication system, comprising:

A load control device according to any one of claims 8 to 15.