WO2012151805A1

WO2012151805A1 - Method, system, and mobility management unit for controlling terminal access

Info

Publication number: WO2012151805A1
Application number: PCT/CN2011/078866
Authority: WO
Inventors: 吴昊
Original assignee: 中兴通讯股份有限公司
Priority date: 2011-05-06
Filing date: 2011-08-24
Publication date: 2012-11-15
Also published as: CN102769891A

Abstract

Disclosed is a method for controlling a terminal access. Time control characteristic information configured for a terminal is used as subscription data of the terminal. The method also comprises: when a network side receives an attachment request or a tracking area update request of the terminal, acquiring the time control characteristic information of the terminal, and performing an access configuration for the terminal on the basis of the time control characteristic information of the terminal, and notifying the terminal of the configuration information. Also disclosed is a system implementing the method for controlling the terminal access. The present invention is capable of controlling the timing for the terminal to access a network, thereby allowing the selection of periods of relatively low network load as the timing for data reporting service of the terminal and specifically of an MTC terminal, thus preventing network congestion caused by terminals simultaneously accessing the network during a short time frame. The present invention allows the timing for accessing the network to be configured for the terminals on the basis of the service classes of the terminals, the periods of relatively low network load are selected as access timings of lower-class terminals, thus ensuring the quality of service of the network.

Description

Method and system for controlling terminal access, mobile management unit

The present invention relates to a terminal access control technology, and in particular, to a method and system for controlling terminal access, and a mobility management unit. Background technique

FIG. 1 is a schematic structural diagram of a cellular wireless communication system. As shown in FIG. 1 , the cellular wireless communication system is mainly composed of a core network (CN, Core Network), an access network (RAN, Radio Access Network), and a terminal. The core network is responsible for non-access layer transactions such as terminal location updates, etc. The core network is also the anchor point of the user plane. The access network includes a base station, or a base station and a base station controller, and the access network is responsible for access layer transactions, such as management of radio resources. The base stations may have physical or logical connections according to actual conditions, such as the base station 1 in FIG. And the connection between the base station 2, the base station 1 and the base station 3, and each base station can be connected to more than one core network node. A user equipment (UE, User Equipment) refers to various devices that can communicate with a cellular wireless communication network, such as a mobile phone or a notebook computer.

The Machine Type Communication (MTC) service is a service in which a machine communicates with a machine. No human involvement is required in the MTC business, and all communication is done autonomously by the machine. The MTC service obtains data through sensing devices such as sensors, and then reports the data to the mobile communication network through the communication module set in the sensor, and accesses the public data network through the mobile communication network, which can be specifically applied to logistics monitoring, security monitoring, and telemedicine. Detection, remote meter reading and other fields. These data are managed by a mobile operator or a specific server of a dedicated MTC operator and can be viewed by MTC users or MTC managers. In this process, the device that obtains the data required by the service is the MTC device.

The MTC service introduces some features that are different from traditional mobile communications, such as time control features. When this feature is activated, the MTC device only allows signaling or data to be sent within a specified time. When the MTC user subscribes to an MTC device, the operator sets and activates the Time Controlled feature in the subscription information of the MTC device, and stores it in the Home Subscriber Server (HSS). The HSS is an entity in the telecommunication network that is responsible for storing identity information, authentication information, authorization information, and the like of a user or a terminal device. Depending on the situation, the HSS can be used to store the user's identity information and the binding information of the user and the terminal device, or only the identity information of the user (the gateway can save the binding information of the user and the terminal device), or directly save the identity of the terminal device. information. The HSS also implements the user's subscription database and performs functions such as user authentication and authorization. The service platform can query user or terminal information from the HSS.

Mobile Management Unit (MME, Mobility Management) when the MTC device is attached to the network

Entity) Obtain the subscription information of the MTC device from the user home server HSS and save it locally. The MME is an entity for managing user terminal control messages in the core network, and is responsible for access control, including authentication control, identification (Globally Unique Temporary Identity (GUTI), Tracking Area Identification List (TAI list, Tracing Area). Identity list ) ) assignment, user identification and device identification verification, message plane encryption, consistency protection with base station (eNB), 2G ( 2nd Generation ) / 3G ( 3rd Generation ) and evolved packet system ( EPS , Evolved ) Packet System), the conversion of security parameters and quality of service (QoS) parameters, access permission control, determines whether the requested resources can be obtained and reserves these resources, lawful interception, mobility management (implementation to the current UE) Location tracking and recording), session management, related operations on EPS bearers, and network element selection.

For the time control feature of MTC, the network is required to control the access control or data transmission and reception of the MTC device, that is, the message or data outside the specified time, the network should reject, and only receive or process the message or data within the specified time.

Currently, the time control feature of the MTC device is still in the discussion stage. How to use this time control feature to control the access of the MTC device? There is no unified technical implementation. Case. Summary of the invention

In view of this, the main purpose of the present invention is to provide a method and system for controlling terminal access, and a mobility management unit, which can effectively control the access timing of the terminal, and avoids the possibility that many terminals may access the network out of order. The network is congested, and by controlling the timing of the terminal accessing the network, the communication terminal with lower priority is prevented from accessing the network when the network bears a heavy burden.

In order to achieve the above object, the technical solution of the present invention is achieved as follows:

A method for controlling terminal access, the time control characteristic information set for the terminal is used as the subscription data of the terminal; the method further includes:

After receiving the attach request or the tracking area update request of the terminal, the network side obtains the time control characteristic information of the terminal, and performs access configuration on the terminal according to the time control characteristic information of the terminal, and configures the configuration information. Notify the terminal.

Preferably, the time control characteristic information set for the terminal includes:

The time period in which the terminal is allowed to access the network is prohibited from being accessed by the terminal; or the time period in which the terminal is allowed to access the network is allowed to be communicated by the terminal, and the terminal is prohibited from accessing the network time period;

Or, in a period in which the terminal is allowed to access the network, the terminal is prohibited from accessing the network period, and the repetition period is performed;

Or, allowing the terminal to access the network for a period of time, allowing the terminal to communicate for a long period of time, prohibiting the terminal from accessing the network period, and repeating the period.

Preferably, the network side is a mobility management unit.

Preferably, the acquiring time control characteristic information of the terminal is:

The mobility management unit requests subscription data of the terminal from the home subscriber server HSS, and acquires time control characteristic information of the terminal.

Preferably, the accessing the terminal according to the time control characteristic information of the terminal Configure, and notify the terminal of the configuration information, as:

The mobility management unit determines a communication time window for the terminal within the terminal access period, and transmits the determined communication time window to the terminal.

Preferably, the communication time window comprises:

Indicating communication start time and communication end time;

Or, communication start time, communication end time, and repetition period;

Or, the communication start time and the communication duration;

Or, communication start time, communication duration, and repetition period.

Preferably, the method further includes:

The terminal communicates with the network when the access time arrives according to the configuration information. Preferably, the method further includes:

When receiving the tracking area update request of the terminal within the forbidden access time period, the mobility management unit accepts the tracking area update request of the terminal, and sends a tracking area update accept message to the terminal.

Preferably, the tracking area update accept message carries at least one of the following information: indicating a communication time window of the terminal, allowing the terminal to access a network time period, prohibiting the terminal from accessing a network time period, and delay time.

Preferably, the method further includes:

When the mobile management unit receives the attach request of the terminal within the forbidden access period, the mobile management unit rejects the attach request of the terminal, and sends an attach reject message to the terminal;

The attach rejection message carries at least one of the following information:

And indicating a communication time window of the terminal, allowing the terminal to access a network time period, prohibiting the terminal from accessing a network time period, and delay time.

Preferably, the method further includes:

Receiving, by the mobility management unit, a service request of the terminal within a period of prohibiting access And rejecting the service request of the terminal, and sending a service rejection message to the terminal; where the service rejection message carries at least one of the following information:

Preferably, the method further includes:

And when the mobile management unit receives the packet data network connection request of the terminal within the forbidden access period, rejecting the packet data network connection request of the terminal, and sending a packet data network connection reject message to the terminal;

The packet data network connection reject message carries at least one of the following information: indicating a communication time window of the terminal, allowing the terminal to access a network time period, prohibiting the terminal from accessing a network time period, and delay time.

Preferably, the mobility management unit is an MME or a GPRS Service Support Node (SGSN).

A system for controlling terminal access, comprising a network side and a terminal; the system further comprising: a setting unit, configured to set time control characteristic information for the terminal; and to be the subscription data of the terminal;

a terminal, configured to send an attach request or a tracking area update request to the network side;

After receiving the attach request or the tracking area update request of the terminal, the network side acquires time control characteristic information of the terminal, and performs access configuration on the terminal according to the time control characteristic information of the terminal, and The configuration information notifies the terminal.

Or, the time period in which the terminal is allowed to access the network is prohibited from being accessed by the terminal, Repeat cycle

Preferably, the network side is a mobility management unit;

After receiving the attach request or the tracking area update request of the terminal, the mobility management unit first searches for the time control characteristic information of the terminal locally, and may not request the HSS to request the subscription data of the terminal, and obtain the terminal. Time control feature information.

Preferably, the mobility management unit is further configured to: determine, in the terminal access period, a communication time window for the terminal, and send the determined communication time window to the terminal.

Preferably, the communication time window comprises:

Indicating communication start time and communication end time;

Or, communication start time, communication end time, and repetition period;

Or, the communication start time and the communication duration;

Or, communication start time, communication duration, and repetition period.

Preferably, the terminal is further configured to: according to the configuration information, communicate with the network when the access time arrives.

A mobility management unit includes a receiving unit, an obtaining unit, a configuration unit, and a notification unit, where:

a receiving unit, configured to receive an attach request or a tracking area update request of the terminal;

An acquiring unit, configured to acquire time control characteristic information of the terminal;

a configuration unit, configured to perform access configuration on the terminal according to time control characteristic information of the terminal;

a notification unit, configured to notify the terminal of the configuration information.

Preferably, the acquiring unit first searches for the time control characteristic information of the terminal locally in the mobility management unit, and requests the HSS to request the subscription data of the terminal, and obtains Time control characteristic information of the terminal.

In the present invention, time control characteristic information is set for each terminal, and the time control characteristic information is stored as contract data of the terminal on the network side. When the terminal is attached to the network or initiates a location update request, the network side first acquires the time control characteristic information of the terminal, and performs access configuration according to the time control characteristic information of the terminal, and notifies the terminal of the corresponding configuration information. The terminal initiates network access according to the received configuration information, thereby implementing communication services such as data reporting. The present invention can control the timing of the terminal accessing the network, so that the timing of the data reporting service of the terminal, especially the MTC terminal, can be selected during a period of low network load, such as the early morning, etc., so as to avoid the terminal accessing the network at the same time in the centralized period. Network congestion. Moreover, the technical solution of the present invention can set the time for accessing the network for the terminal according to the service level of the terminal, and select the access timing of the terminal with lower service level to select the time when the network load is low, thereby ensuring the service of the network. quality. DRAWINGS

1 is a schematic structural diagram of a cellular wireless communication system;

2 is a flowchart of a method for controlling terminal access according to an embodiment of the present invention;

3 is a flowchart of a method for controlling access of a terminal according to Embodiment 2 of the present invention;

FIG. 4 is a schematic structural diagram of a structure of a mobility management unit according to the present invention. detailed description

The present invention will be further described in detail below with reference to the accompanying drawings.

Embodiment 1

Step 201: When the terminal accesses the network, the terminal user signs the terminal to the MTC terminal with the time controllable feature (that is, the time control feature), and negotiates the time control characteristic information with the operator: the access time period is allowed, and the access time period is prohibited. Wait. The two time periods in the above time control characteristic information may be repeated or may be valid once. The specific representation of each time period is as follows: method one:

Allow access time period: start time, end time, and optionally time period repeat period;

The access time period is prohibited: the start time, the end time, and optionally the time period repeat period;

An example is as follows:

Allow access time period:

Start time: March 7, 2011 11:00;

End time: March 7, 2011 12:00.

If the period repeat period is not included, it means that the period is repeated 24 hours a day according to the period (the next allowed period is 11:00 to 12:00 on March 8, 2011), or it is expressed as not repeating. (ie, the terminal is allowed to access the network only on March 7, 2011 from 11:00 to 12:00); if the time period repeat period is also included, for example, the repetition period is one month, the next allowed time period is 2011. April 7th from 11:00 to 12:00.

Prohibited access time period:

The representation mode allows the access time period as described above, but the time requirement cannot overlap with the allowed access time period. For example, it may be a time period other than the above-mentioned allowed access time period, or other time periods that do not overlap with the above-mentioned allowed access time period, such as a time period set to be a heavy network load.

Method 2:

Allowed access time period: start time, duration, optionally also includes time period repeat period; prohibit access time period: start time, duration, and optionally time period repeat period; examples are as follows:

Allow access time period:

Start time: March 7, 2011 11:00;

Allowed access time: 1 hour. If the period repeat period is not included, it means that the period is repeated 24 hours a day according to the period (the next allowed period is 11:00 to 12:00 on March 8, 2011), or it is expressed as not repeating. If the time period repeat period is included, for example, the repeat period is one month, the next allowed time period is April 7th, 2011, 11:00 to 12:00.

The foregoing step 201 is a basic step of implementing the present invention, that is, initial configuration of time control characteristic information of the terminal is required.

Step 202: After the terminal is powered on, send an attach request to the MME, where the terminal identifier and the security certificate are included;

Step 203: After authenticating the terminal identifier and the security certificate, the MME first searches for whether the time control characteristic information is stored locally, and if yes, step 205 is performed; if not, the terminal requests the HSS to sign the terminal. Data

Step 204: After receiving the request from the MME, the HSS sends the subscription data of the terminal to the MME. Step 205: Perform access configuration on the terminal according to the obtained time control characteristic information of the terminal. The acquired time control characteristic information of the terminal may be found locally in the MME. The MME may obtain the time control characteristic information of the terminal after obtaining the subscription data sent by the HSS, and perform access configuration on the terminal. Here, the access configuration is mainly for determining the communication time window information of the access network for the terminal.

Specifically, the manner in which the MME configures the communication time window is as follows:

First, calculate the length of time allowed for the access period, which is 1 hour or 60 minutes in this embodiment; divide the duration into 10 equal parts (specific implementation, which can be divided according to specific needs), each time is 6 minutes. The 6-minute duration is the duration of the terminal communication time window;

Use the random number function to randomly take an integer between 0 and 9. Use the following algorithm to calculate the start time of the communication time window: Communication time window start time = allow time period start time + random number X time window duration.

By determining the start time of the communication time window of the terminal by randomization, the terminal can be prevented from communicating. Network congestion caused by excessive concentration.

The communication time window parameters configured by the MME can be in the following forms:

A. Communication time window: start time, end time, or optional time period repeat period (configured according to the allowable time period in the contract data). If the time period is configured with a repeat period, the communication time window is also configured with the same repetition. Cycle);

B. Communication time window: Start time, duration, or optional time period repeat period (the repetition period is configured in the same way as A).

It should be noted that, if the MME determines that the received request of the terminal is within the allowed access period, the communication time window is determined for the terminal within the terminal access period by using the current time as a starting point. And notify the terminal.

Step 206: The MME sends an attach accept message to the terminal, where the attach accept message includes the communication time window related parameter set for the terminal.

Step 207: The terminal sends signaling or data to the network when the communication time window start time is reached according to the communication time window information configured on the network side.

Step 208: The MME locally needs to save the communication time window information of the terminal, and send the communication time window information to the gateway.

The main purpose of the above communication time window information transmission gateway is that when an abnormality occurs in the terminal, signaling or data may be sent outside the communication time window, and even signaling or data is sent within the time limit for prohibiting access of the subscription. In this way, differentiated charging can be performed for such abnormal communication conditions, such as charging a higher communication fee, to further limit abnormal communication.

Step 209: The gateway uses normal charging for data transmission and reception in the communication time window, and separately charges data in the non-communication time window.

When the data or message of the terminal is received within the communication time window, the data or message of the terminal is normally accepted, and the gateway uses normal charging for data transmission and reception in the communication time window. When the data or message of the terminal is received outside the communication time window, the data of the terminal is also normally received, but the network High billing is used for data transmission and reception outside the communication time window.

Step 210: Receive a related request of the terminal within the forbidden access period, and return a accept or reject message to the terminal.

It should be noted that the terminal is usually allocated by the network in a tracking area. When the terminal moves out of the tracking area, it needs to update the request to the network by sending a trace, and the network locally modifies the location information of the tracking area of the terminal. At the same time, when the UE does not move and is in an idle state, it also needs to send a periodic tracking area update request to the network in a specified period, so that the network knows that the terminal is still online, and after the network reply tracking area update is accepted to the terminal, the terminal starts to enter. The next cycle.

When the MME receives the tracking area update request message of the terminal, the MME receives the tracking area update request of the terminal, and sends a tracking area update accept message to the terminal.

When the MME receives the attach request message of the terminal, the MME rejects the attach request of the terminal and sends an attach reject message to the terminal.

When the MME receives the service request message of the terminal, the MME rejects the service request of the terminal and sends a service rejection message to the terminal.

During the forbidden access period, when the MME receives the packet data network connection request message of the terminal, the MME rejects the packet data network connection request of the terminal, and sends the packet data network connection reject message to the terminal.

The tracking area update accept message, or the attach reject message, or the service reject message, or the packet data network connection reject message may carry one or more of the following access time information, and is used to indicate the next access of the terminal. Time:

A: communication time window;

B: Allow access time period;

C: The access time period is forbidden;

D: Delay time, the value of the delay time may be set to be equal to or greater than the time interval at which the current time distance ends the access prohibition period. For example, the access time period is 13: 00 to 14: 00, The current time is 13:30, then the delay sent to the terminal is 30 minutes. Instruct the terminal to initiate a control message after 30 minutes.

Step 211: The terminal sends the next control message according to the access time information included in the received related receiving or rejecting message. After receiving the tracking area update accept message, or the attach reject message, or the service reject message, or the packet data network connection reject message, the terminal sends the next control message according to the access time information included in the message.

It should be noted that the MME in the above example may also be an SGSN. The above attachment request may also be a tracking area update request or the like.

Embodiment 2

Step 301: When the terminal accesses the network, the terminal user signs the terminal to have time controllable characteristics.

The MTC terminal negotiates with the operator the time control characteristic information of the terminal: the allowed access time period, the access time period, the communication duration, and the like. The two allowed time periods, the access time period and the forbidden access time period, may be repeated or may be valid once. The communication duration is used to indicate the maximum communication duration of the terminal within the allowed access period. The specific representation of each time period is as follows:

method one:

Communication duration: Absolute value, whose value is not greater than the allowed access time period (ie, the end time minus the start time)

An example is as follows:

Allow access time period:

Start time: March 7, 2011 11:00;

End time: 12:00 on March 7, 2011; Communication duration: 30 minutes.

If the period repeat period is not included, it means that the period is repeated 24 hours a day according to the period (the next allowed period is 11:00 to 12:00 on March 8, 2011), or it is expressed as not repeating. If the time period repeat period is included, for example, the repeat period is one month, the next allowed time period is April 7th, 2011, 11:00 to 12:00.

Prohibited access time period:

The representation mode allows the access time period as described above, but the time requirement cannot overlap with the allowed access time period.

Method 2:

Allow access time period: start time, duration, or optional time period repeat period; prohibit access time period: start time, duration, or optional time period repeat period; communication duration: absolute value, its value Not greater than the allowed access time period (ie end time minus start time)

An example is as follows:

Allow access time period:

Start time: March 7, 2011 11:00;

Allowed access time: 1 hour;

Communication duration: 30 minutes.

If the time period repetition period is not included in the time control characteristic information, it means that the time period is repeated 24 hours a day according to the period (the next allowed time period is March 8th, 2011, 11:00 to 12:00). , or can be expressed as not repeating; if the period repeat period is included, for example, the repeat period is one month, the next allowed time period is April 7, 2011, from 11:00 to 12:00.

Step 302: After the terminal is powered on, send an attach request to the MME, where the terminal identifier and the security certificate are included; Step 303: After authenticating the terminal identifier and the security certificate, the MME first searches for whether the time control characteristic information is stored locally, and if yes, step 305 is performed; if not, the terminal requests the HSS to sign the terminal. data;

Step 304: After receiving the request of the MME, the HSS sends the subscription data of the terminal to the MME. Step 305: Perform access configuration on the terminal according to the obtained time control characteristic information of the terminal. The acquired time control characteristic information of the terminal may be found locally in the MME. The MME may obtain the time control characteristic information of the terminal after obtaining the subscription data sent by the HSS, and perform access configuration on the terminal. Here, the access configuration is mainly for determining the communication time window information of the access network for the terminal.

The way the MME configures the communication time window is as follows:

First, calculate the length of the allowable time period, which is 60 minutes in this embodiment;

According to the duration of the allowed time period, the start time of the communication time window is randomly divided into 10 times, the duration of the time period - the length of communication time))), that is, the earliest starting time of the communication time window is the allowed time period Start time, the latest start time is (the start time of the allowed time period + (permitted time period - communication duration)), and the duration of the terminal communication time window is set to the communication duration in the subscription data;

The specific method for randomly dividing the start time of the communication time window is: randomly taking an integer between (0 to (permitted time period duration - communication duration)) using a random number function, the start time of the communication time window = allowable time period Start time + random number calculated by the above algorithm.

By randomizing the communication time window start time of the terminal, it is possible to avoid network congestion caused by the terminal starting to transmit and receive data too much.

A. Communication time window: start time, end time, and optionally time period repetition period (configured according to the allowed time period in the contract data, if the time period is configured with a repetition period, Then the communication time window is also configured with the same repetition period);

B. Communication time window: Start time, duration, and optionally time period repeat period (the repetition period is configured in the same way as A).

Step 306: The MME sends an attach accept message to the terminal, where the attach accept message includes a communication time window parameter.

Step 307: The terminal sends signaling or data to the network when the communication time window start time is reached according to the configured communication time window.

Step 308, the MME locally needs to save the communication time window information of the terminal, and send the communication time window information to the gateway.

Step 309: When an abnormality occurs in the terminal, it is possible to send signaling or data outside the communication time window, or even send signaling or data within the time limit for prohibiting access of the subscription.

When the terminal's data or message is received within the communication time window, the terminal's data or message is normally accepted.

Step 310: Receive a related request of the terminal within the forbidden access period, and return a accept or reject message to the terminal.

When the MME receives the tracking area update request message of the terminal, the MME receives the tracking area update request message of the terminal, and sends the tracking area update accepting, when the MME receives the tracking area update request message of the terminal outside the communication time window (including all the time periods except the communication time window). The message is to the terminal.

When the MME receives the service request message of the terminal, the MME rejects the service request of the terminal and sends a service rejection message to the terminal. Outside the communication time window, when receiving the packet data network connection request message of the terminal, the MME rejects the packet data network connection request of the terminal, and sends a packet data network connection rejection message to the terminal.

In the tracking area update accept message, or the attach reject message, or the service reject message, or the packet data network connection reject message, the following access time information may be carried to indicate the time of the next access of the terminal: the communication time window.

Step 311: The terminal sends the next control message according to the access time information included in the received related receiving or rejecting message. After receiving the tracking area update accept message, or the attach reject message, or the service reject message, or the packet data network connection reject message, the terminal sends the next control message according to the access time information included in the message.

The invention also describes a system for controlling terminal access, comprising a network side and a terminal; the system further comprising: a setting unit, configured to set time control characteristic information for the terminal; and to be the subscription data of the terminal; In the invention, the setting unit is located on the network side or is a processing unit belonging to the operator, and is responsible for setting time control characteristic information for the contracting terminal of the communication system. The terminal is configured to send an attach request or a tracking area update request to the network side.

The time control characteristic information set for the terminal includes:

The above network side is a mobility management unit;

The mobility management unit is further configured to: determine, by the mobility management unit, a communication time window for the terminal during the time period in which the terminal is allowed to access, and send the determined communication time window to the terminal. The above communication time window includes:

Indicating communication start time and communication end time;

Or, communication start time, communication end time, and repetition period;

Or, the communication start time and the communication duration;

Or, communication start time, communication duration, and repetition period.

The foregoing mobility management unit is further configured to: when determining that the received attach request or the tracking area update request of the terminal is within the allowed access period, use the current time as a starting point to allow the terminal access period as The terminal determines a communication time window and sends the communication time window to the terminal.

The terminal is further configured to: according to the configuration information, communicate with the network when the access time arrives.

The above mobility management unit is an MME or GPRS service support node.

It should be noted that the system accessed by the control terminal of the present invention is mainly applied to a mobile communication system, and particularly to a mobile communication system suitable for MTC terminal communication, the system accessed by the control terminal of the present invention does not apply to the mobile communication system. The structure of the related network element is modified, and only the function of the related network element is updated. For details, refer to the existing protocol and the related descriptions of the first embodiment and the second embodiment. 4 is a schematic structural diagram of a mobile management unit according to the present invention. As shown in FIG. 4, the mobility management unit of the present invention includes a receiving unit 40, an obtaining unit 41, a configuration unit 42, and a notification unit 43, wherein:

The receiving unit 40 is configured to receive an attach request or a tracking area update request of the terminal;

The obtaining unit 41 is configured to acquire time control characteristic information of the terminal after receiving the attach request or the tracking area update request;

The configuration unit 42 is configured to perform access configuration on the terminal according to time control characteristic information of the terminal;

The notification unit 43 is configured to notify the terminal of the configuration information.

The obtaining unit 41 first searches for the time control characteristic information of the terminal locally in the mobility management unit, and requests the HSS to request the subscription data of the terminal, and obtains the time control characteristic information of the terminal.

The configuration unit 42 is further configured to determine a communication time window for the terminal within the terminal access period, and send the determined communication time window to the terminal by the notification unit 43. The above communication time window includes:

Indicating communication start time and communication end time;

Or, communication start time, communication end time, and repetition period;

Or, the communication start time and the communication duration;

Or, communication start time, communication duration, and repetition period.

The configuration unit 42 is further configured to: when it is determined that the received attach request or the tracking area update request of the terminal is within the allowable terminal access period, the current time is used as a starting point to allow the terminal access period to be the The terminal determines a communication time window and transmits the determined communication time window to the terminal via the notification unit 43.

It should be understood by those skilled in the art that the functions of the foregoing processing units of the mobility management unit of the present invention may be implemented by corresponding hardware circuits, or by corresponding software running in the processor. And realized.

The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

Claims

Claim

A method for controlling terminal access, characterized in that the time control characteristic information set for the terminal is used as the subscription data of the terminal; the method further includes:

2. The method according to claim 1, wherein the time control characteristic information set for the terminal comprises:

3. The method according to claim 2, wherein the network side is a mobility management unit.

The method according to claim 3, wherein the acquiring time control characteristic information of the terminal is:

The method according to claim 3, wherein the accessing the terminal according to the time control characteristic information of the terminal, and notifying the terminal of the configuration information is:

The mobility management unit determines the communication for the terminal during the terminal access period a window, and the determined communication time window is sent to the terminal.

The method according to claim 5, wherein the communication time window comprises: indicating a communication start time and a communication end time;

Or, communication start time, communication end time, and repetition period;

Or, the communication start time and the communication duration;

Or, communication start time, communication duration, and repetition period.

The method according to claim 5 or 6, wherein the method further comprises: the terminal communicating with the network when the access time arrives according to the configuration information.

The method according to any one of claims 1 to 6, wherein the method further comprises:

9. The method according to claim 8, wherein the tracking area update accept message carries at least one of the following information:

The attach rejection message carries at least one of the following information:

The method according to any one of claims 1 to 6, wherein the method Also includes:

When the mobile management unit receives the service request of the terminal within the forbidden access period, the mobile management unit rejects the service request of the terminal, and sends a service rejection message to the terminal;

The service rejection message carries at least one of the following information:

The method according to claim 8, wherein the mobility management unit is a mobility management entity MME or a GPRS service support node SGSN.

A system for controlling terminal access, comprising a network side and a terminal; wherein the system further comprises: a setting unit, configured to set time control characteristic information for the terminal; and to be the subscription data of the terminal; ,

The system according to claim 14, wherein the time control characteristic information set for the terminal comprises: The time period in which the terminal is allowed to access the network is prohibited from being accessed by the terminal; or the time period in which the terminal is allowed to access the network is allowed to be communicated by the terminal, and the terminal is prohibited from accessing the network time period;

The system according to claim 15, wherein the network side is a mobility management unit;

The system according to claim 16, wherein the mobility management unit is further configured to: determine, during the terminal access period, a communication time window for the terminal, and determine the determined communication time window. Send to the terminal.

The system according to claim 17, wherein the communication time window comprises: indicating a communication start time and a communication end time;

Or, communication start time, communication end time, and repetition period;

Or, the communication start time and the communication duration;

Or, communication start time, communication duration, and repetition period.

The system according to claim 17 or 18, wherein the terminal is further configured to communicate with the network when the access time arrives according to the configuration information.

20. A mobility management unit, wherein the mobility management unit comprises a receiving unit, an obtaining unit, a configuration unit, and a notification unit, wherein:

a receiving unit, configured to receive an attach request or a tracking area update request of the terminal; An acquiring unit, configured to acquire time control characteristic information of the terminal;

The mobile management unit according to claim 20, wherein the acquiring unit first searches for the time control characteristic information of the terminal locally in the mobility management unit, and requests the terminal from the HSS when not found. Signing data, obtaining time control characteristic information of the terminal.