CN102045810B - Method, device and system for accessing machine type communication terminal equipment to network - Google Patents

Method, device and system for accessing machine type communication terminal equipment to network Download PDF

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Publication number
CN102045810B
CN102045810B CN200910110629.0A CN200910110629A CN102045810B CN 102045810 B CN102045810 B CN 102045810B CN 200910110629 A CN200910110629 A CN 200910110629A CN 102045810 B CN102045810 B CN 102045810B
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mtc terminal
network
access control
access
terminal device
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CN102045810A (en
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国炜
郭宣羽
郭小龙
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to PCT/CN2010/077431 priority patent/WO2011041979A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the invention provides a method, a device and a system for accessing machine type communication (MTC) terminal equipment to a network. The method comprises the following steps that: the MTC terminal equipment receives a broadcast message sent from a base station, wherein the broadcast message comprises access control information corresponding to the access control level of the MTC terminal equipment, the access control level of the MTC terminal equipment is different from or equal to that of other types of terminal equipment in the network, and the broadcast message also comprises indication parameter numbers to mark the type of the MTC terminal equipment in the access control level and the other types of terminal equipment in the network; and the MTC terminal equipment judges whether the network can be accessed according to the access control information, and executes corresponding access operation. Through the embodiment of the invention, the access of the MTC terminal equipment can be controlled more flexibly, which is helpful for reducing the probability of network congestion.

Description

Method, device and system for accessing machine type communication terminal equipment to network
Technical Field
The present invention relates to the field of mobile communications technologies, and in particular, to a method, an apparatus, and a system for accessing a machine-type communication terminal device to a network.
Background
Machine Type Communications (MTC) applications refer to network Communications between one or more network elements without human involvement, such as traffic control and management, plant monitoring, remote meter reading, and other applications.
Currently, in an existing Universal Mobile Telecommunications System (UMTS) network, Access Control (AC) information is stored in a Universal Subscriber Identity Module (USIM) card, and the network performs Access Control according to an AC level stored in the USIM card. In addition, in a Long Term Evolution (LTE) network, whether a user terminal can access the network is also determined by the type of service initiated.
However, in the process of implementing the embodiment of the invention, the inventor finds that: with the development of the technology, in a future network, a large number of MTC terminal devices will share the same network as the existing mobile phone terminal, and in this case, when accessing the network, a large number of MTC terminal devices will inevitably cause network congestion.
Disclosure of Invention
Embodiments of the present invention provide a method, an apparatus, and a system for accessing a Machine Type Communication (MTC) terminal device to a network, so that the MTC terminal device can determine whether to be allowed to access the network according to received access control information corresponding to an access control class of the MTC terminal device, thereby more flexibly controlling access of the MTC terminal device and reducing network congestion.
In one aspect, a method for accessing a Machine Type Communication (MTC) terminal device to a network is provided, and the method includes:
receiving a broadcast message sent by a base station by Machine Type Communication (MTC) terminal equipment, wherein the broadcast message comprises access control information corresponding to an access control class of the MTC terminal equipment, the access control class of the MTC terminal equipment is different from the access control classes of other types of terminal equipment in a network, or the access control class of the MTC terminal equipment is equal to the access control classes of other types of terminal equipment in the network, and the broadcast message also comprises an indication parameter to identify the type of the MTC terminal equipment in the access control class and the other types of terminal equipment in the network;
and the MTC terminal equipment determines whether the network can be accessed according to the access control information and executes corresponding access operation.
In one aspect, an MTC terminal device is provided, which includes:
a message receiving unit, configured to receive a broadcast message sent by a base station, where the broadcast message includes access control information corresponding to an access control class of the MTC terminal device, where the access control class of the MTC terminal device is different from access control classes of other types of terminal devices in a network, or the access control class of the MTC terminal device is equal to the access control class of other types of terminal devices in the network, and further includes an indication parameter to identify a type of the MTC terminal device in the access control class and the other types of terminal devices in the network;
and the access determining unit is used for determining whether the network can be accessed according to the access control information received by the message receiving unit and executing corresponding access operation.
In one aspect, an access control method is provided, where the method includes:
a base station sends a broadcast message to MTC terminal equipment, wherein the broadcast message comprises access control information corresponding to an access control grade of the MTC terminal equipment, so that the MTC terminal equipment determines whether to be capable of accessing a network according to the access control information in the broadcast message; the access control level of the MTC terminal equipment is different from the access control levels of other types of terminal equipment in the network.
In one aspect, a base station is provided, including:
a message sending unit, configured to send a broadcast message to an MTC terminal device, where the broadcast message includes access control information corresponding to an access control class of the MTC terminal device, so that the MTC terminal device determines whether the MTC terminal device can access a network according to the access control information in the broadcast message; the access control level of the MTC terminal equipment is different from the access control levels of other types of terminal equipment in the network.
By distributing the access control grade which can be distinguished from other types of terminal equipment in the network to the MTC terminal equipment, the MTC terminal equipment can determine whether to be allowed to access the network or not through the received access control information corresponding to the access control grade of the MTC terminal equipment, so that the access of the MTC terminal equipment can be controlled more flexibly, the possibility of network congestion is reduced, and the network performance is improved.
Drawings
FIG. 1 is a flow chart of the method of example 1 of the present invention;
FIG. 2 is a flow chart of the method of example 2 of the present invention;
FIG. 3 is another flow chart of the method of embodiment 2 of the present invention;
FIG. 4 is another flow chart of the method of embodiment 2 of the present invention;
FIG. 5 is a flow chart of a method of embodiment 3 of the present invention;
FIG. 6 is a flowchart of a method of embodiment 4 of the present invention;
fig. 7 is a configuration diagram of an MTC terminal device according to embodiment 5 of the present invention;
fig. 8 is a configuration diagram of an MTC terminal device according to embodiment 6 of the present invention;
fig. 9 is a configuration diagram of a base station according to embodiment 8 of the present invention.
Detailed Description
An embodiment 1 of the present invention provides a method for an MTC terminal device to access a network, as shown in fig. 1, the method includes:
step 101, an MTC terminal device receives a broadcast message sent by a base station, where the broadcast message includes access control information corresponding to an access control class of the MTC terminal device, where the access control class of the MTC terminal device is different from access control classes of other types of terminal devices in a network, or the access control class of the MTC terminal device is equal to the access control class of other types of terminal devices in the network, and the broadcast message also includes an indication parameter to identify a type of the MTC terminal device in the access control class and other types of terminal devices in the network;
and step 102, the MTC terminal device determines whether it can access the network according to the access control information.
In the embodiment of the invention, the MTC terminal device is a machine type communication terminal, such as an electricity meter or a gas meter in a remote meter reading system in the power industry. Other types of terminal equipment may include mobile communication terminals, such as cell phones and the like.
All MTC terminal devices may use one or several access control classes, and the access control class is different from the access control classes of other types of terminal devices. For example, the terminal devices in the network include MTC terminal devices and mobile phones, the access control class in the network may be 0 to 9, and one or several of the access control classes may be specified as being dedicated to the MTC terminal devices; for example, the access control classes 0 to 7 and 9 are randomly used by the mobile phone, and all MTC terminal devices may share the access control class 8; or the access control grades 0-6 and 9 can be randomly used by the mobile phone, one part of MTC terminal equipment is commonly accessed to the control grade 7, and the other part of MTC terminal equipment is commonly accessed to the control grade 8; or the MTC terminal equipment can share a newly added value, the mobile phone uses the access control level 0-9, and the MTC terminal equipment shares a newly added access control level 16.
All MTC terminal devices may also share an access control class with an existing terminal device, in which case the existing access control class needs to be extended, and a new indication parameter is introduced into the access control class to respectively indicate different terminal device types in the network under the access control class. For example, the terminal devices in the network include MTC terminal devices and handsets, the access control level in the network may be 0-9, and for the access control level 8, for example, where the indication parameter bit is 1 may indicate a handset terminal, and the indication parameter bit is 0 may indicate an MTC device terminal.
In the embodiment of the invention, different access control grades can be allocated to the MTC terminal equipment of different types according to the type of the MTC terminal equipment; for example, all non-moving MTC terminal devices may be classified into a low mobility device class, MTC terminal devices with a small data volume may be classified into a low data volume class, MTC terminal devices for household gas meter reading may be classified into a class, and so on; different MTC terminal equipment types correspond to different access control levels.
In the embodiment of the present invention, the access control information refers to information that the MTC terminal device determines whether it can access the network. The access control information may include one or a combination of the following: information of allowed or forbidden access to the network, the scaling parameters and the originating behavior. Wherein,
the information of the allowed access network or the forbidden access network can be represented by any identifier, such as a boolean-type numerical representation or an enumerated-type numerical representation. For example, when a boolean variable is used, a "1" may be used to identify allowed access networks and a "0" may be used to identify forbidden access networks, or vice versa. When numerical values of the enumerated type are employed, the allowed or prohibited values may be used directly for identification. Thus, when the access control information corresponding to the access control level of the MTC terminal equipment received by the MTC terminal equipment is '1', the MTC terminal equipment can be determined to be capable of accessing the network; when the MTC terminal equipment receives that the access control information corresponding to the access control level of the MTC terminal equipment is '0', the MTC terminal equipment can be determined not to be accessed to a network.
The ratio parameter may indicate that a certain ratio of terminal device accesses are allowed or forbidden, and the ratio parameter may be determined by factors such as base station load, and in addition, in order to further determine the ratio parameter, the base station may further refer to load information of the current network, and specifically may be determined according to load information of the core network mobility management entity processing the MTC terminal device, and the load information may be transferred between a core network element and a base station interface (e.g. Iu, S1). For example, if the ratio parameter is 0.3, it means that 30% of MTC terminal devices are allowed to access the network, and thus, when the random number generated by the MTC terminal device is smaller than the ratio parameter, the MTC terminal device may determine that the network can be accessed.
When the proportion parameter indicates that 30% of MTC terminal equipment is prohibited from accessing the network. In this way, when the random number generated by the MTC terminal device is less than the scaling parameter, the MTC terminal device may determine that it cannot access the network.
The initiating behavior represents that one or more MTC terminal devices initiating behavior are allowed to access to a network, wherein the initiating behavior can comprise one or a combination of the following information: the method comprises the steps of call starting signaling operation, call starting data operation, call ending signaling operation and call ending data operation. In this way, if the MTC terminal device determines that the behavior of triggering access to the network satisfies the initiation behavior in the broadcast message, it may be determined that the MTC terminal device may access the network.
According to the embodiment, the access control grade different from that of the terminal equipment of other types in the network is allocated to the MTC terminal equipment, so that the MTC terminal equipment can determine whether to be allowed to access the network or not through the received access control information corresponding to the access control grade of the MTC terminal equipment, the access of the MTC terminal equipment can be controlled more flexibly, and the network congestion is reduced.
Embodiment 2 of the present invention provides a method for an MTC terminal device to access a network, which takes access control information as information, a ratio parameter, and an initiation behavior of a network that is allowed to be accessed or prohibited from being accessed as examples. .
When the access control information is information for allowing an access network or prohibiting an access network, as shown in fig. 2, the method includes:
step 201, an MTC terminal device receives a broadcast message sent by a base station, where the broadcast message includes information of a network allowed to be accessed or a network prohibited to be accessed, where the access control class of the MTC terminal device is different from the access control classes of other types of terminal devices in the network, or the access control class of the MTC terminal device is equal to the access control class of other types of terminal devices in the network, and further includes an indication parameter to identify the type of the MTC terminal device in the access control class and the other types of terminal devices in the network;
in this embodiment, the access control information may be a boolean value or an enumerated value;
in the following, an example will be described in which the access control information identifies whether to allow or prohibit access by using boolean variables, where "1" identifies an allowed access network and "0" identifies a prohibited access network.
Step 202, the MTC terminal device determines whether the access control information is information for allowing access to a network or information for prohibiting access to a network;
in this embodiment, that is, it is determined whether the access control information is "1" or "0", if the access control information is "1", if the access control information corresponding to the access control level in the broadcast message is "1", step 203 is executed; of course, if step 203 is executed, step 204 is not necessarily executed, that is, the flow may include 201, 202, 203;
or, if the access control information corresponding to the access control level in the broadcast message is "0", then step 204 is executed to end the access control process; of course, if step 204 is executed, step 203 is not necessarily executed, that is, the flow may include 201, 202, and 204.
In step 203, if the access control information included in the broadcast message is "1" in step 202, the MTC terminal device determines that it can access the network.
Step 204, when it is determined in step 202 that the access control information included in the broadcast message is "0", the MTC terminal device determines that the MTC terminal device cannot access the network, and ends the access control procedure.
For example, in a case where all the MTC terminal devices share the access control class 8, when the access control information corresponding to the access control class 8 included in the broadcast message received by the MTC terminal device is 1, the MTC terminal device may determine that it is able to access the network.
For example, in the case that different types of MTC terminal devices use different access control classes, if the MTC terminal device belongs to a low mobility MTC terminal device and the access control class of the low mobility MTC terminal device is 24, the low mobility MTC terminal device may determine that the network can be accessed when the access control information corresponding to the access control class 24 included in the broadcast message received by the low mobility MTC terminal device is 1.
When the access control information is an initiating action, as shown in fig. 3, the method includes:
step 301, an MTC terminal device receives a broadcast message sent by a base station, where the broadcast message includes an initiation behavior corresponding to an access control class, and the access control class of the MTC terminal device is different from access control classes of other types of terminal devices in a network, or the access control class of the MTC terminal device is equal to the access control class of other types of terminal devices in the network, and further includes an indication parameter to identify a type of the MTC terminal device in the access control class and the other types of terminal devices in the network.
In this embodiment, the access control class of the MTC terminal device is similar to that in embodiment 1, and is not described herein again. The initiating behavior is a network behavior allowing access, and may include one or more of the following operations: the method comprises the steps of starting call signaling operation, starting call data operation, final call signaling operation and final call data operation.
Step 302, the MTC terminal device determines whether the MTC terminal device triggers an access network to perform an initiation behavior included in the broadcast message, and if the MTC terminal device triggers the access network to perform the step 303 if the MTC terminal device triggers the access network to perform the initiation behavior included in the broadcast message; if the behavior of triggering the access network does not satisfy the initiation behavior included in the broadcast message, go to step 304; it is noted that step 304 does not have to be performed if step 303 is performed; and vice versa.
Step 303, in step 302, if the behavior of the MTC terminal device triggering access to the network satisfies the initiation behavior included in the broadcast message, the MTC terminal device determines that the MTC terminal device can access to the network.
Step 304, if the MTC terminal device triggers the access to the network does not satisfy the initiation behavior included in the broadcast message in step 302, the MTC terminal device determines that the MTC terminal device cannot access the network, and ends the access control procedure.
For example, the allowed initiation behavior included in the broadcast message is an origination signaling operation, and if the MTC terminal device determines that the behavior of triggering the access network is the origination signaling operation, that is, the initiation behavior is satisfied, the MTC terminal device may determine that the access network is possible.
When the access control information is a proportional parameter, as shown in fig. 4, the method includes:
step 401, an MTC terminal device receives a broadcast message sent by a base station, where the broadcast message includes a proportional parameter corresponding to an access control class, where the access control class of the MTC terminal device is different from access control classes of other types of terminal devices in a network, or the access control class of the MTC terminal device is equal to the access control class of other types of terminal devices in the network, and the broadcast message further includes an indication parameter to identify a type of the MTC terminal device in the access control class and other types of terminal devices in the network.
In this embodiment, the access control class of the MTC terminal device is similar to that in embodiment 1, and is not described herein again. The scaling parameter may be any value greater than zero, such as 0.3, 0.5, etc.; the ratio parameter may be expressed as a percentage, for example, 56%, but is not limited thereto, and may be other values, for example, a normalized number, such as 0.56.
In this embodiment, the proportion parameter may represent a proportion of terminal devices that are allowed to access or forbidden to access the network, and the proportion parameter may be generated by the base station with reference to load information of the current network, and specifically may be determined according to load information of the core network mobility management entity processing the MTC terminal devices, where the load information may be transferred between a core network element and an access network element interface (e.g., Iu, S1).
For example, when the base station generates a proportional parameter indicating that a certain proportion of terminal devices are allowed to access, and the load of the current network is relatively large, the base station may set the proportional parameter in the broadcast message to be smaller; when the current network is idle, the base station may set the proportional parameter in the broadcast message to be larger. In this way, after the MTC terminal device receives the ratio parameter, if it is determined that the random number generated by the MTC terminal device is smaller than the ratio parameter, it is determined that the MTC terminal device can access the network.
Or, when the base station generates a proportional parameter indicating that a certain proportion of terminal devices are prohibited from accessing, and the load of the current network is relatively large, the base station may set the proportional parameter in the broadcast message to be larger; when the current network is idle, the base station may set the ratio parameter in the broadcast message to be smaller. Thus, after the MTC terminal device receives the ratio parameter, if it is determined that the random number generated by the MTC terminal device is smaller than the ratio parameter, it is determined that the MTC terminal device cannot access the network. For example, the received ratio parameter is 0.56, the generated random number is 0.3, and since the random number 0.3 is smaller than the ratio parameter 0.56, the MTC terminal device determines that it cannot access.
The following description will be given taking as an example a case where the scale parameter indicates the scale of the terminal device permitted to access the network.
Step 402, the MTC terminal device determines whether the generated random number is smaller than the proportional parameter corresponding to the access control class, if the random number generated by the MTC terminal device is smaller than the proportional parameter corresponding to the access control class, step 403 is executed, and if the random number generated by the MTC terminal device is greater than or equal to the proportional parameter corresponding to the access control class, step 404 is executed. It is noted that step 404 does not have to be performed if step 403 is performed; and vice versa.
In this step, the MTC terminal device may generate the random number in any existing manner, for example, the generated random number is 0.23.
Step 403, when it is determined in step 402 that the generated random number is smaller than the proportional parameter corresponding to the access control class, the MTC terminal device determines that it can access the network.
Step 404, when it is determined in step 402 that the generated random number is greater than or equal to the proportional parameter corresponding to the access control class, the MTC terminal device determines that the MTC terminal device cannot access the network, and ends the access control procedure.
For example, the received ratio parameter is 0.56, the generated random number is 0.3, and since the random number 0.3 is smaller than the ratio parameter 0.56, the MTC terminal device determines that it can access.
As can be seen from the foregoing embodiments, the MTC terminal device may determine whether it is able to access the network according to the access control information included in the broadcast message.
In addition, the broadcast message may further include a random access parameter in addition to the access control information, and after determining that the MTC terminal device can access the network in steps 203, 303, and 403, the MTC terminal device may further determine a random access resource according to the random access parameter in the broadcast message, or according to the random access parameter and the identifier of the MTC terminal device, so as to initiate a random access procedure according to the random access resource.
In this embodiment, the random access resource may be a radio subframe and a subcarrier, but is not limited thereto, and may also be other access resources.
For example, when the MTC terminal device determines the random access resource according to the random access parameter, if the random access parameter is 10, it is determined that the MTC terminal device uses the 10 th subframe and the 10 th subcarrier on the subframe to perform access.
For example, when the MTC terminal device determines the random access resource according to the random access parameter in the broadcast message and the identifier of the MTC terminal device, if the random access parameter is 0.01 and the identifier of the MTC terminal device is 100, the two values may be multiplied to obtain a value 1, and it may be determined that the MTC terminal device uses the 1 st subframe and the 1 st subcarrier on the subframe to perform access. But not limited to this, the random access resource may also be determined after performing a modulo operation and an exclusive or operation according to the actual situation.
According to the embodiment, whether the MTC terminal equipment is allowed to access the network is determined by receiving the access control information corresponding to the access control level of the MTC terminal equipment, which is different from the access control levels of other types of terminal equipment, so that the access of the MTC terminal equipment can be flexibly controlled, and the network congestion is reduced; in addition, when the network can be accessed, the random access resource can be determined according to the random access parameter in the broadcast message.
In the above embodiment, the description is given by taking as an example that the access control information is information of an allowed access network or a forbidden access network, and the origination behavior and the ratio parameter, respectively. In addition, the access control information may further include any combination of information, initiation behavior, and ratio parameter that allows or prohibits access to the network, as described in embodiment 3, so that the MTC terminal devices may perform determination one by one according to the access control information, further control access of the MTC terminal devices, and reduce network congestion.
Embodiment 3 of the present invention provides a method for an MTC terminal device to access a network. The following description will be made with reference to fig. 5, taking as an example that the access control information includes information of an allowed access network or a forbidden access network, an origination behavior, and a scale parameter. The order of the determination is not limited to any order, and the following description will take the sequential determination according to the order of the information, the initiation behavior, and the ratio parameter of the allowed access network or the forbidden access network as an example.
As shown in fig. 5, the method includes:
step 501, an MTC terminal device receives a broadcast message sent by a base station, where the broadcast message includes access control information corresponding to an access control class, where the access control information includes information allowing to access a network or information prohibiting to access the network, an initiation behavior, and a proportion parameter, the access control class of the MTC terminal device is different from the access control class of other types of terminal devices in the network, or the access control class of the MTC terminal device is equal to the access control class of other types of terminal devices in the network, and the MTC terminal device further includes an indication parameter bit to identify the type of the MTC terminal device in the access control class and the other types of terminal devices in the network;
the access control information is as described in embodiments 1 and 2, and is not described herein again.
Step 502, determining whether the information is allowed to access the network or forbidden to access the network; if the information of allowing to access the network, go to step 503; if the information of prohibiting accessing the network, go to step 506; it is noted that step 506 does not have to be performed if step 503 is performed; and vice versa.
The determination of the information for allowing the access to the network or the information for prohibiting the access to the network is described in step 202 of embodiment 2, and is not described herein again.
Step 503, if it is determined in step 502 that the access network is allowed, further determining whether the behavior of the MTC terminal device triggering the access network satisfies the initiating behavior, and if so, executing step 504; otherwise, go to step 506; it is noted that step 506 does not have to be performed if step 504 is performed; and vice versa.
Wherein, determining whether the behavior of triggering the access network by the MTC terminal device satisfies the initiation behavior is described in step 302 of embodiment 2, and details are not described here.
Step 504, in step 503, if it is determined that the MTC terminal device triggers the access network to satisfy the initiation behavior, further determining whether a random number generated by the MTC terminal device is smaller than the ratio parameter, if so, performing step 505, otherwise, performing step 506; it is noted that step 506 does not have to be performed if step 505 is performed; and vice versa.
Wherein, it is determined whether the random number generated by the MTC terminal device is smaller than the ratio parameter, as described in step 402 of embodiment 2, which is not described herein again.
Step 505, when it is determined in step 504 that the random number generated by the MTC terminal device is smaller than the ratio parameter, it is determined that the MTC terminal device can access the network.
In step 506, in the case that the determination result in steps 502, 503, 504 is forbidden or no, the MTC terminal device may determine that it cannot access the network.
In this way, by broadcasting the information whether to allow access to the network, the origination behavior, and the scale parameter in the broadcast message, the access of the MTC terminal device can be further controlled.
As can be seen from the foregoing embodiments, whether a network can be accessed is determined by receiving access control information corresponding to an access control class of an MTC terminal device different from that of other types of terminal devices; the access of the MTC terminal equipment can be controlled; by adding the information, the initiating behavior and the proportion parameter of whether to allow the access to the network in the broadcast message, the access of the MTC terminal equipment can be further controlled, and the network congestion is reduced.
Embodiment 4 of the present invention provides a method for accessing an MTC terminal device to a network, where in embodiment 3, the broadcast message received by the MTC terminal device may further include a random access parameter, and after the MTC terminal device determines that the MTC terminal device can access the network, the MTC terminal device may further determine a random access resource according to the random access parameter, so as to initiate a random access process on the random access resource.
As shown in fig. 6, the method includes:
601, receiving a broadcast message sent by a base station by an MTC terminal device, wherein the broadcast message comprises access control information corresponding to an access control level of the MTC terminal device and a random access parameter; the access control information corresponding to the access control class comprises information, a proportion parameter and an initiating behavior of allowing access to the network or forbidding access to the network, the access control class of the MTC terminal equipment is different from the access control classes of other types of terminal equipment in the network, or the access control class of the MTC terminal equipment is equal to the access control class of other types of terminal equipment in the network, and the access control information further comprises an indication parameter bit for identifying the type of the MTC terminal equipment in the access control class and the other types of terminal equipment in the network.
In this embodiment, the access control information corresponding to the access control level in the broadcast message is as described in embodiments 1, 2, and 3, and is not described herein again.
The random access parameter may be a parameter shared by all MTC terminal devices, for example, all MTC terminal devices may correspond to a random access parameter of 0.01, but is not limited thereto, and the random access parameter may be determined according to an actual situation; or, when the MTC terminal devices are of multiple types, the random access parameters corresponding to each type of MTC terminal device may be different, and one parameter may be shared by the same type of MTC terminal device; or different random access parameters are provided for different initiating services, and one random access parameter can be shared by the same initiating service.
Step 602, step 603, step 604, step 605 and step 606 are similar to the embodiment shown in fig. 5, and are not described again here.
Step 607, after the MTC terminal device determines that it can access the network in step 605, the MTC terminal device determines a random access resource according to the random access parameter in the broadcast message, so as to initiate a random access process according to the random access resource.
In this embodiment, the random access resource may be a radio subframe and a subcarrier, but is not limited thereto, and may also be other access resources.
In this embodiment, the MTC terminal device may determine the random access resource according to the random access parameter. For example, when the random access parameter is 10, it may be determined that the MTC terminal device uses the 10 th subframe and the 10 th subcarrier on the subframe for access.
In addition, the MTC terminal device may also determine a random access resource according to the random access parameter in the broadcast message and the identifier of the MTC terminal device. For example, the random access parameter is 0.01, the identifier of the MTC terminal device is 100, the two values may be multiplied to obtain a value 1, and it may be determined that the MTC terminal device uses the 1 st subframe and the 1 st subcarrier on the subframe for access. But not limited to this, the random access resource may also be determined after performing a modulo operation and an exclusive or operation according to the actual situation.
According to the embodiment, whether the MTC terminal equipment can be accessed is determined by receiving the information whether the MTC terminal equipment is allowed to be accessed or not corresponding to the access control level different from other types of terminal equipment, and the proportion parameter and the initiating behavior, so that the access of the MTC terminal equipment can be flexibly controlled; after the MTC terminal equipment is determined to be capable of accessing the network, the random access resource is determined through the random access parameter in the broadcast message, and the network congestion can be further reduced.
Embodiment 5 of the present invention provides an MTC terminal device, as shown in fig. 7, where the MTC terminal device includes: a message receiving unit 701 and an access determining unit 702; wherein,
a message receiving unit 701, configured to receive a broadcast message sent by a base station, where the broadcast message includes access control information corresponding to an access control class of the MTC terminal device, where the access control class of the MTC terminal device is different from access control classes of other types of terminal devices in a network, or the access control class of the MTC terminal device is equal to the access control class of other types of terminal devices in the network, and further includes an indication parameter to identify a type of the MTC terminal device in the access control class and the other types of terminal devices in the network;
an access determining unit 702, configured to determine whether a network can be accessed according to the access control information received by the message receiving unit 701, and perform a corresponding access operation.
In this embodiment, the MTC terminal device may be a machine type communication terminal, such as an electric meter or a gas meter in a remote meter reading system in the power industry. Other types of terminal equipment may include mobile communication terminals, such as cell phones and the like.
In this embodiment, the access control classes of all the MTC terminal devices are different from the access control classes of other types of terminal devices in the network, or the access control classes of the MTC terminal devices are equal to the access control classes of other types of terminal devices in the network, and further include an indication parameter to identify the type of the MTC terminal device in the access control class and the other types of terminal devices in the network. The access control classes of the MTC terminal devices may share any one of values from 0 to 9, or may share a newly added value. For example, the terminal devices in the network include MTC terminal devices and handsets, and the handsets randomly use access control classes 0-7 and 9, the MTC terminal devices share access control class 8. Or the access control level 0-9 is used by the mobile phone, and the MTC terminal equipment shares a newly added access control level 16.
In this embodiment, different access control classes may be allocated to MTC terminal devices of different types according to the type of the MTC terminal device, and each access control class is different from the access control classes of terminal devices of other types. For example, all non-moving MTC terminal devices are classified into a class of low mobility device, and the access control class corresponding to this class of MTC terminal devices may be 24; the MTC terminal equipment with little data volume is divided into the class of the small data volume, and the access control grade corresponding to the class of the equipment can be 25; the MTC terminal equipment for household gas meter reading is divided into a class, and the access control grade corresponding to the class of equipment can be 26.
In this embodiment, the access control information corresponding to the access control class may include one or a combination of the following information: information of allowed or forbidden access to the network, the scaling parameters and the originating behavior. But is not limited thereto, the access control information may be determined according to actual circumstances. The specific manner of determining whether the network can be accessed by the access determining unit 702 according to the access control information is as described in embodiments 2, 3, and 4, and is not described herein again.
As can be seen from the foregoing embodiments, by allocating an access control class, which can be distinguished from other types of terminal devices in a network, to an MTC terminal device, the MTC terminal device can determine whether to be allowed to access the network through received access control information corresponding to the access control class of the MTC terminal device, so that access of the MTC terminal device can be controlled more flexibly, and network congestion is reduced.
Embodiment 6 of the present invention provides an MTC terminal device, as shown in fig. 8, where the MTC terminal device includes: the functions of the receiving unit 901801 and the access determining unit 902802 are as described in embodiment 5, and are not described herein again.
In addition, the broadcast message may include random access parameters in addition to access control information corresponding to the access control class.
As shown in fig. 8, the MTC terminal device may further include a resource determining unit 803, where the resource determining unit 803 is configured to determine a random access resource according to the random access parameter, or the random access parameter and the identifier of the MTC terminal device, after the access determining unit 802 determines that the network can be accessed. The manner for determining the random access resource by the resource determining unit 803 is as described in embodiment 4, and is not described herein again.
According to the embodiment, whether the MTC terminal equipment can be accessed or not is determined by receiving the access control information corresponding to the access control level of the MTC terminal equipment, which is different from the access control levels of other types of terminal equipment, so that the access of the MTC terminal equipment can be flexibly controlled, and the network congestion is reduced; after the MTC terminal equipment is determined to be capable of accessing the network, the random access resource is determined through the random access parameter in the broadcast message, and the network congestion can be further reduced.
Embodiment 7 of the present invention provides an access control method, including: the base station sends a broadcast message to the MTC terminal equipment so that the MTC terminal equipment can determine whether to access a network according to information in the broadcast message; the broadcast message carrying information includes access control information corresponding to an access control class of the MTC terminal device, where the access control class of the MTC terminal device is different from access control classes of other types of terminal devices in the network, or the access control class of the MTC terminal device is equal to the access control class of other types of terminal devices in the network, and further includes an indication parameter to identify a type of the MTC terminal device in the access control class and the other types of terminal devices in the network.
As can be seen from the above embodiments, the base station sends the access control information corresponding to the access control class of the MTC terminal device different from that of other types of terminal devices to the MTC terminal device, so that the MTC terminal device determines whether the network can be accessed according to the information in the broadcast message, thereby reducing the congestion of the network.
In this embodiment, the access control information may include one or a combination of the following information: information of allowed or forbidden access to the network, the scaling parameters and the originating behavior. The access control information is as described in embodiments 1 to 6 above, and is not described herein again.
In this embodiment, the ratio parameter may be determined by factors such as the base station load. In addition, in order to better determine the ratio parameter, the base station may further be determined by combining load information transmitted by a mobility management entity of the core network. Thus, the method further comprises: the base station receives load information for processing MTC terminal equipment transmitted by a core network; and generating a proportional parameter according to the load information.
As can be seen from the above embodiments, the base station sends the access control information corresponding to the access control class of the MTC terminal device different from that of other types of terminal devices to the MTC terminal device, so that the MTC terminal device determines whether the network can be accessed according to the information in the broadcast message, thereby reducing the congestion of the network.
Embodiment 8 of the present invention provides a base station, as shown in fig. 9, where the base station includes a message sending unit 901, where the message sending unit 901 is configured to send a broadcast message to an MTC terminal device, where the broadcast message includes access control information corresponding to an access control class of the MTC terminal device, so that the MTC terminal device determines whether to access a network according to the access control information in the broadcast message; the access control grade of the MTC terminal equipment is different from the access control grade of other types of terminal equipment in the network, or the access control grade of the MTC terminal equipment is equal to the access control grade of other types of terminal equipment in the network, and the MTC terminal equipment also comprises an indication parameter bit for identifying the type of the MTC terminal equipment in the access control grade and the other types of terminal equipment in the network.
As can be seen from the foregoing embodiment, the base station sends, to the MTC terminal device, information about whether to allow access to the network corresponding to an access control class of the MTC terminal device that is different from other types of terminal devices, so that the MTC terminal device determines whether to be able to access the network according to the information in the broadcast message, thereby reducing network congestion.
In this embodiment, the access control information may include one or a combination of the following information: information, scaling parameters and initiation behavior of the allowed access network or the forbidden access network, as described in embodiments 1 to 7, are not described herein again.
In this embodiment, when the access control information includes a ratio parameter, the ratio parameter may be determined by factors such as the base station load. In addition, in order to better determine the ratio parameter, the base station may further be determined by combining load information transmitted by a mobility management entity of the core network. Thus, as shown in fig. 9, the base station may further include:
an information receiving unit 902, configured to receive load information for processing MTC terminal devices, where the load information is transmitted by a core network;
a parameter generating unit 903, configured to generate a proportional parameter according to the load information received by the information receiving unit 902;
and the broadcast message sent by the message sending unit 901 also includes the proportional parameter generated by the parameter generating unit 903.
As can be seen from the above embodiments, the base station sends the access control information corresponding to the access control class different from that of the other types of terminal devices to the MTC terminal devices, so that the MTC terminal devices determine whether to be able to access the network according to the information in the broadcast message, thereby reducing network congestion. When the proportion parameter is used for the measurement,
specific application example 9 is described below. The invention discloses a communication system, which comprises the MTC terminal equipment introduced in embodiment 5 or 6.
Next, a specific application example 10 will be described. The invention discloses a communication system, which comprises the base station introduced in the embodiment 8.
In this embodiment, the terminal device may be any terminal device, such as an MTC terminal device, a mobile phone, and the like.
It can be known from the foregoing embodiments that the terminal device may determine whether the terminal device may access the network according to the initiation behavior of the access-allowed network broadcasted in the broadcast message, may control access of the terminal device, and reduce congestion of the network.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (13)

1. A method for accessing a Machine Type Communication (MTC) terminal device to a network, the method comprising:
receiving a broadcast message sent by a base station by Machine Type Communication (MTC) terminal equipment, wherein the broadcast message comprises access control information corresponding to an access control class of the MTC terminal equipment, the access control class of the MTC terminal equipment is different from the access control classes of other types of terminal equipment in a network, or the access control class of the MTC terminal equipment is equal to the access control classes of other types of terminal equipment in the network, and the broadcast message also comprises an indication parameter to identify the type of the MTC terminal equipment in the access control class and the other types of terminal equipment in the network;
the MTC terminal equipment determines whether the network can be accessed according to the access control information and executes corresponding access operation;
the access control information comprises one or a combination of the following information: information, scaling parameters and initiating behavior of allowed or forbidden access to the network;
when the access control information comprises an initiating action, the initiating action comprises one or a combination of the following information: the method comprises the following steps of starting call signaling operation, starting call data operation, final call signaling operation and final call data operation;
and if the MTC terminal equipment triggers the access network to meet the initiating behavior, the MTC terminal equipment determines that the network can be accessed.
2. The method according to claim 1, wherein the MTC terminal devices are of more than one type, and wherein the access control class for each type of MTC terminal device is different.
3. The method of claim 1, wherein when the access control information includes information for allowing or prohibiting access to a network, the MTC terminal device determining whether to be able to access the network according to the access control information comprises:
if the access control information is determined to be the information allowing the network to be accessed, the MTC terminal equipment determines that the network can be accessed; or,
and if the access control information is determined to be information for prohibiting network access, the MTC terminal equipment determines that the network cannot be accessed.
4. The method according to claim 1, wherein when the access control information includes a ratio parameter, the MTC terminal device determining whether it can access a network according to the access control information includes:
and the MTC terminal equipment determines whether the MTC terminal equipment can be accessed to a network or not according to the proportion parameter and the random number generated by the MTC terminal equipment.
5. The method according to any of claims 1 to 4, wherein the broadcast message further comprises a random access parameter;
after the MTC terminal device determines that it is able to access a network, the method further includes:
and the MTC terminal equipment determines random access resources according to the random access parameters or the random access parameters and the identification of the MTC terminal equipment.
6. The method according to claim 5, wherein the random access parameters corresponding to different kinds of MTC terminal devices are different; or different initiation behaviors correspond to different random access parameters.
7. An MTC terminal device, wherein the MTC terminal device comprises:
a message receiving unit, configured to receive a broadcast message sent by a base station, where the broadcast message includes access control information corresponding to an access control class of the MTC terminal device, where the access control class of the MTC terminal device is different from access control classes of other types of terminal devices in a network, or the access control class of the MTC terminal device is equal to the access control class of other types of terminal devices in the network, and further includes an indication parameter to identify a type of the MTC terminal device in the access control class and the other types of terminal devices in the network;
an access determining unit, configured to determine whether a network can be accessed according to the access control information received by the message receiving unit, and perform a corresponding access operation;
the access control information comprises one or a combination of the following information: information, scaling parameters and initiating behavior of allowed or forbidden access to the network;
when the access control information is an initiating behavior, the initiating behavior comprises one or a combination of the following information: the method comprises the following steps of starting call signaling operation, starting call data operation, final call signaling operation and final call data operation;
and if the MTC terminal equipment triggers the access network to meet the initiating behavior, the MTC terminal equipment determines that the network can be accessed.
8. The MTC terminal device of claim 7, wherein the MTC terminal device types include more than one type, and each type of MTC terminal device has a different access control class.
9. The MTC terminal device of claim 7, wherein the broadcast message further comprises a random access parameter;
after the MTC terminal device determines that it is able to access a network, the MTC terminal device further includes:
and the resource determining unit is used for determining the random access resources according to the random access parameters or the random access parameters and the identification of the MTC terminal equipment.
10. The MTC terminal device of claim 7, wherein random access parameters corresponding to different kinds of MTC terminal devices are different; or different initiation behaviors correspond to different random access parameters.
11. A base station, characterized in that the base station comprises:
a message generating unit, configured to generate a broadcast message sent to an MTC terminal device, where the broadcast message includes access control information corresponding to an access control class of the MTC terminal device, where the access control class of the MTC terminal device is different from access control classes of other types of terminal devices in a network, or the access control class of the MTC terminal device is equal to the access control class of other types of terminal devices in the network, and further includes an indication parameter to identify a type of the MTC terminal device in the access control class and the other types of terminal devices in the network;
a message sending unit, configured to send the broadcast message generated by the message generating unit to an MTC terminal device, so that the MTC terminal device determines whether the network can be accessed according to access control information in the broadcast message, and performs a corresponding access operation; the access control information comprises one or a combination of the following information: information, scale parameters, initiation behavior of allowed access to the network or forbidden access to the network; or the access control information comprises one or a combination of the following information: information of allowed or forbidden access to the network, a scaling parameter, an initiating behavior, and a random access parameter;
when the access control information comprises an initiating action, the initiating action comprises one or a combination of the following information: the method comprises the following steps of starting call signaling operation, starting call data operation, final call signaling operation and final call data operation;
and if the MTC terminal equipment triggers the access network to meet the initiating behavior, the MTC terminal equipment determines that the network can be accessed.
12. The base station of claim 11, wherein when the access control information is a scaling parameter, the base station further comprises:
the information receiving unit is used for receiving the load information of the MTC terminal equipment transmitted by the core network;
and the parameter generating unit is used for generating a proportional parameter according to the load information received by the information receiving unit.
13. A communication system, characterized in that the system comprises an MTC terminal device according to any of claims 7 to 10.
CN200910110629.0A 2009-10-09 2009-10-09 Method, device and system for accessing machine type communication terminal equipment to network Active CN102045810B (en)

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