CN105392112B - Guard method, equipment and the system of MTC device information - Google Patents
Guard method, equipment and the system of MTC device information Download PDFInfo
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- CN105392112B CN105392112B CN201510857806.7A CN201510857806A CN105392112B CN 105392112 B CN105392112 B CN 105392112B CN 201510857806 A CN201510857806 A CN 201510857806A CN 105392112 B CN105392112 B CN 105392112B
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 230000004044 response Effects 0.000 claims abstract description 12
- 238000012217 deletion Methods 0.000 claims description 22
- 230000037430 deletion Effects 0.000 claims description 22
- 238000004891 communication Methods 0.000 claims description 20
- 238000012545 processing Methods 0.000 claims description 14
- 238000012795 verification Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 7
- 230000003993 interaction Effects 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 230000007246 mechanism Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/02—Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
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- 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]
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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 present invention relates to Data Protection Technologies more particularly to a kind of guard method, equipment and the systems of MTC device information.This method includes：SCEF receives the request message for the acquisition MTC device information that applications are sent, and includes the identification information of the identification information and MTC device of applications in request message；SCEF obtains the registration table corresponding with the identification information of applications, and determines the identification information for whether including MTC device in registration table, and the identification information for the MTC device for allowing applications acquisition information is included in registration table；If including the identification information of MTC device in registration table, SCEF sends information acquisition request message to MTC device；SCEF receives the acquisition response message for including MTC device information that MTC device is sent, and MTC device information is sent to applications.Guard method, equipment and the system of the MTC device information of the present invention can realize the effective protection to MTC device information.
Description
Technical field
The present invention relates to Data Protection Technologies more particularly to a kind of MTC (Machine Type Communication, machines
Device type communication) facility information guard method, equipment and system.
Background technology
Communication in future communications network will be more with the communication between equipment and equipment, equipment and data center
It is main.Increasingly cheaper memory technology will make it possible people and equipment obtain magnanimity information.Along with chip processing capabilities
With the development of real-time online technology, by as the Primary Actor in future mobile communications, machine to machine communication refers to equipment
Application communication technology realizes a series of technologies that machine is communicated and exchanged with data between machine, machine and people and combinations thereof
General name.
In MTC communication system, network operator can provide value-added service to applications supplier.These increment clothes
Business can be provided by SCEF (Service Capability Exposure Function, opening service capability functional entity)
It is used to applications.In addition, operator can also have been combined various inside and outside business with the network capabilities of operator
Come, various API (Application Programming Interface, application program volume are provided for the participant of MTC service
Journey interface) service.
Under opening service capability framework, SCEF needs to manage the security association between applications and MTC device, to
Ensure the applications only authorized, can just obtain the information of specific MTC device.In MTC system, MTC device is usually used
In specific application field, therefore, MTC device is often associated with specific applications.The outside of one specific application area
Using the information for the mandate MTC device that can only be obtained in the application field.However, in actual use, one by certification
Authorize applications that may obtain the information of unauthorized MTC device intentionally.This can be to the MTC device of other in MTC system
Safety constitutes a threat to.
Invention content
An embodiment of the present invention provides a kind of guard method, equipment and the systems of MTC device information, are set to MTC with realizing
The effective protection of standby information.
In a first aspect, an embodiment of the present invention provides a kind of guard method of MTC device information, the method is applied to industry
Under business ability open architecture in the MTC communication system comprising MTC device, the method includes：
Opening service capability functional entity SCEF receives the request message for the acquisition MTC device information that applications are sent,
The identification information of identification information and the MTC device comprising the applications in the request message；
The SCEF obtains the registration table corresponding with the identification information of the applications, and is in the determining registration table
The no identification information for including the MTC device includes the MTC device for allowing the applications to obtain information in the registration table
Identification information；
If including the identification information of the MTC device in the registration table, the SCEF is sent to the MTC device to be believed
Breath obtains request message；
The SCEF receives the acquisition response message for including the MTC device information that the MTC device is sent, and by institute
It states MTC device information and is sent to the applications.
Optionally, the method further includes：
If not including the identification information of the MTC device in the registration table, the SCEF is sent out to the applications
It send and refuses the response message that the applications obtain the MTC device information.
Optionally, it before the request message for the acquisition MTC device information that the SCEF receptions applications are sent, also wraps
It includes：
The SCEF receives the verification notification message that core net certification entity is sent, and includes to test in the verification notification message
Demonstrate,prove the identification information of the applications passed through；
The SCEF establishes the registration table corresponding with the identification information for the applications being verified；
The SCEF carries out registration interaction with the MTC device, determines the applications that the MTC device allows, and will
The identification information of the MTC device is added in registration table corresponding to identification information of the applications of the permission.
Optionally, the SCEF carries out registration interaction with the MTC device, determines that the outside that the MTC device allows is answered
With, and in registration table corresponding to identification information that the identification information of the MTC device is added to the applications of the permission,
Including：
The SCEF receives the login request message that the MTC device is sent after accessing network, and the registration request disappears
The identification information of identification information and the permitted applications of the MTC device comprising the MTC device in breath；
The SCEF verifies the login request message, and after being verified, by the login request message
In include the identification information of MTC device be added to note corresponding to identification information of the permitted applications of the MTC device
In volume table.
Optionally, the method further includes：
The SCEF receives registration table deletion request message, includes applications in the registration table deletion request message
The identification information of identification information and the MTC device of required deletion；
The SCEF carries out legitimacy certification to the source of the registration table deletion request message, after certification passes through, from
The identification information of the required MTC device deleted is deleted in the registration table corresponding with the identification information of the applications.
Second aspect, an embodiment of the present invention provides a kind of SCEF, the SCEF is applied under opening service capability framework
Including in the MTC communication system of MTC device, the SCEF includes：
Receiving module, the request message of the acquisition MTC device information for receiving applications transmission, the request message
In comprising the applications identification information and the MTC device identification information；
Secure processing module, for obtaining the registration table corresponding with the identification information of the applications, and described in determination
Whether include the identification information of the MTC device in registration table, obtains and believe comprising the permission applications in the registration table
The identification information of the MTC device of breath；
Respond module, if the identification information for including the MTC device in the registration table, the SCEF is to described
MTC device sends information acquisition request message；The acquisition comprising the MTC device information that the MTC device is sent is received to ring
Message is answered, and the MTC device information is sent to the applications.
Optionally, the respond module, is additionally operable to：
If not including the identification information of the MTC device in the registration table, the SCEF is sent out to the applications
It send and refuses the response message that the applications obtain the MTC device information.
Optionally, the secure processing module, is additionally operable to：
Before the request message that the receiving module receives the acquisition MTC device information that applications are sent, core is received
The verification notification message that heart net certification entity is sent, it is described to verify the mark for including the applications being verified in notification message
Information；Establish the registration table corresponding with the identification information for the applications being verified；It is registered with the MTC device
Interaction determines the applications that the MTC device allows, and the identification information of the MTC device is added to the permission
In registration table corresponding to the identification informations of applications.
Optionally, the secure processing module, is specifically used for：
The login request message that the MTC device is sent after accessing network is received, includes in the login request message
The identification information of the identification information of the MTC device and the permitted applications of the MTC device；
The login request message is verified, and after being verified, will include in the login request message
The identification information of MTC device is added in registration table corresponding to identification information of the permitted applications of the MTC device.
Optionally, the secure processing module, is additionally operable to：
Registration table deletion request message is received, the identification information of applications is included in the registration table deletion request message
With the identification information of the MTC device of required deletion；
Legitimacy certification is carried out to the source of the registration table deletion request message, after certification passes through, from it is described outer
Deleted in registration table corresponding to identification information of portion's application it is described needed for the identification information of MTC device deleted.
The third aspect, an embodiment of the present invention provides a kind of communication systems, including：Applications, at least one MTC are set
Standby, core net certification entity and the SCEF as described in any one of claim 6~9.
In the guard method of MTC device information provided in an embodiment of the present invention, equipment and system, when SCEF receives outside
When using the request for obtaining MTC device information, set by verifying its requested MTC with the registration table corresponding to the applications
Whether standby information is allowed to acquisition, if it is, MTC believes to the requested MTC device of applications feedback applications
Breath, effectively prevents that applications has been authorized illegally to obtain not the MTC device information for allowing it to access, so as to realize
MTC device information is effectively protected.
Description of the drawings
Fig. 1 shows the flow chart of the guard method of MTC device information of the embodiment of the present invention；
Fig. 2 shows establish registration table process flow diagram flow chart to the applications by core network entity certification；
Fig. 3 shows that the identification information of MTC device is added to the process flow diagram flow chart of applications registration table；
Fig. 4 shows the process flow diagram flow chart for deleting MTC device identification information in registration table；
Fig. 5 shows the structural schematic diagram of SCEF in the embodiment of the present invention；
Fig. 6 shows the structural schematic diagram of communication system in the embodiment of the present invention.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
In MTC communication system, it is difficult to which the meeting presence avoided, which has authorized applications illegally to obtain, does not allow it to access
MTC device information the case where.In order to protect the safety of MTC device information, adoptable method to include：If SCEF is MTC
Core net network entity in communication system then uses NDS (Network Data Service, network data services)/IP
(Internet Protocol, network between interconnection protocol) security mechanism；If SCEF is not belonging to the core in MTC communication system
Net network entity then uses Tsp (Telematics Service Provider, Content Service Provider) interface security mechanism
Or MB2 interface security mechanism.In MTC system, MTC device substantial amounts, and MTC device Number dynamics change, at any time all
There is a large amount of MTC device to be added or exit MTC services.This makes network need to expend vast resources management and safeguard MTC device
And applications.If SCEF can directly handle the request that applications obtain MTC device information, effectively can drop
Low network signal flow, to effectively reduce the generation of network congestion.How network solution for MTC device information protection is designed
Certainly scheme so that SCEF can directly handle the request that applications obtain MTC device information, be the current technology for being badly in need of solving
Problem.
To solve the above-mentioned problems, the specific implementation that MTC device information protection is provided in the embodiment of the present invention, with
It is lower the guard method of the MTC device information of the present invention to be described in detail in conjunction with attached drawing.
Fig. 1 shows that the flow chart of the guard method of MTC device information of the embodiment of the present invention, this method are applied to business energy
Under power open architecture in the MTC communication system comprising MTC device, main processing steps include：
Step S11：Opening service capability functional entity SCEF receives asking for the acquisition MTC device information that applications are sent
Message is sought, includes the identification information of the identification information and MTC device of applications in request message；
Step S12：Whether SCEF obtains the registration table corresponding with the identification information of applications, and determine and wrapped in registration table
Identification information containing MTC device, in registration table comprising allow applications obtain information MTC device identification information；
Step S13：If including the identification information of MTC device in registration table, SCEF sends acquisition of information to MTC device and asks
Seek message；
Step S14：What SCEF reception MTC devices were sent includes the acquisition response message of MTC device information, and MTC is set
Standby information is sent to applications.
In the above-mentioned methods, if not including the identification information of MTC device in registration table, SCEF is refused to applications transmission
Exhausted applications obtain the response message of MTC device information.
In the above method of the embodiment of the present invention, SCEF receives the request for the acquisition MTC device information that applications are sent
Also the applications by core network entity certification are established with the process of registration table before message.
Core net certification entity is authenticated applications in the embodiment of the present invention, is answered for by the outside of certification
With in the registration table that SCEF foundation is identified by the applications identity information.Registration table is by MTC device identity structure
At.Registration table can be that an empty table indicates that the applications belonging to it cannot obtain any MTC when registration table is sky table
The information of equipment.
In the embodiment of the present invention, core net certification entity can be that any in core net can be used for certification applications
Network entity can be e.g. MME (Mobility Management Entity, mobility management entity), SGSN
(Serving GPRS Support Node, GPRS serving GPRS support node), HSS (Home Subscriber Server, ownership
Assigned user server), MTC-IWF (MTC-Interactive Website Framework, MTC- interactive sites framework)
Or MTC service management platform
Fig. 2 shows establishing registration table process flow diagram flow chart to the applications by core network entity certification, including：
Step S21：Core net certification entity is authenticated applications.
Step S22：SCEF receives the verification notification message that core net certification entity is sent, and it includes to test to verify in notification message
Demonstrate,prove the identification information of the applications passed through
Step S23：SCEF establishes the registration table corresponding with the identification information for the applications being verified.
Step S24：SCEF carries out registration interaction with MTC device, determines the applications that MTC device allows, and MTC is set
Standby identification information is added in registration table corresponding to identification information of the applications of permission.
In the present invention, after MTC device accesses network, need to be registered in SCEF, MTC device is established by registration process
Security association between applications.Specific registration process is as shown in figure 3, include：
Optionally, SCEF carries out registration interaction with MTC device, determines the applications that MTC device allows, and MTC is set
Standby identification information is added in registration table corresponding to identification information of the applications of permission, includes as shown in Figure 3：
Step S31：SCEF receives the login request message that is sent after accessing network of MTC device, in login request message
Include the identification information of the permitted applications of identification information and MTC device of MTC device.
Step S32：SCEF carries out verification to login request message
Step S33：After MTC device is verified, the identification information for the MTC device for including in login request message is added
It is added in registration table corresponding to identification information of the permitted applications of MTC device.
Step S34：SCEF feeds back authenticate-acknowledge message to MTC device.
In the embodiment of the present invention, the registration table of applications can be managed by MTC user or operator.Such as may be used
With as needed, the specific MTC device identification information in registration table is deleted by SCEF.It is specific delete process as shown in figure 4,
Including：
Step S41：SCEF receives the registration table deletion request message that MTC user sends, in registration table deletion request message
Include the identification information of the identification information of applications and the MTC device of required deletion；
Step S42：SCEF carries out legitimate verification to the source of registration table deletion request message；
Step S43：After being verified, required delete is deleted from the registration table corresponding with the identification information of applications
MTC device identification information and update the registration tablies of the applications.
Step S44：SCEF sends feeding back confirmation message to MTC user.
Fig. 5 shows that the structural schematic diagram of SCEF in the embodiment of the present invention, SCEF are applied under opening service capability framework
Including in the MTC communication system of MTC device, SCEF includes：
Receiving module 51, the request message of the acquisition MTC device information for receiving applications transmission, in request message
Including the identification information of applications and the identification information of MTC device；
Secure processing module 52 for obtaining the registration table corresponding with the identification information of applications, and determines registration table
In whether include the identification information of MTC device, comprising allowing the mark of MTC device that applications obtain information to believe in registration table
Breath；
Respond module 53, if the identification information for including MTC device in registration table, SCEF is sent to MTC device to be believed
Breath obtains request message；The acquisition response message for including MTC device information that MTC device is sent is received, and by MTC device information
It is sent to applications.
In the above-described embodiments, respond module 53 are additionally operable to：
If including the identification information of MTC device in registration table, SCEF sends refusal applications to applications and obtains
The response message of MTC device information.
In the above-described embodiments, secure processing module 52 are additionally operable to：
Before the request message that receiving module 51 receives the acquisition MTC device information that applications are sent, core is received
The verification notification message that net certification entity is sent verifies the identification information for including the applications being verified in notification message；
Establish the registration table corresponding with the identification information for the applications being verified；Registration interaction is carried out with MTC device, determines MTC
The applications that equipment allows, and the identification information that the identification information of MTC device is added to the applications of permission is corresponding
In registration table.
In the above-described embodiments, secure processing module 52 are specifically used for：
The login request message that MTC device is sent after accessing network is received, includes MTC device in login request message
The identification information of identification information and the permitted applications of MTC device；
Login request message is verified, and after being verified, the MTC device that will include in login request message
Identification information is added in registration table corresponding to identification information of the permitted applications of MTC device.
In the above-described embodiments, secure processing module 52 are additionally operable to：
Registration table deletion request message is received, includes identification information and the institute of applications in registration table deletion request message
The identification information for the MTC device that need to be deleted；
Legitimacy certification is carried out to the source of registration table deletion request message, after certification passes through, from applications
The identification information for the MTC device deleted needed for being deleted in registration table corresponding to identification information.
Fig. 6 shows the structural schematic diagram of communication system in the embodiment of the present invention, including：It is applications 7, at least one
SCEF8 described in MTC device 9, core net certification entity 6 and the various embodiments described above.
One of ordinary skill in the art will appreciate that：Realize that all or part of step of above-mentioned each method embodiment can lead to
The relevant hardware of program instruction is crossed to complete.Program above-mentioned can be stored in a computer read/write memory medium.The journey
When being executed, execution includes the steps that above-mentioned each method embodiment to sequence；And storage medium above-mentioned includes：ROM, RAM, magnetic disc or
The various media that can store program code such as person's CD.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (9)
1. a kind of guard method of machine type MTC device information, which is characterized in that the method is applied to opening service capability
Under framework in the MTC communication system comprising MTC device, the method includes：
Opening service capability functional entity SCEF receives the request message for the acquisition MTC device information that applications are sent, described
The identification information of identification information and the MTC device comprising the applications in request message；
Whether the SCEF obtains the registration table corresponding with the identification information of the applications, and determine and wrapped in the registration table
Identification information containing the MTC device, in the registration table comprising allow the applications obtain information MTC device mark
Know information；
If including the identification information of the MTC device in the registration table, the SCEF sends information to the MTC device and obtains
Take request message；
The SCEF receives the acquisition response message for including the MTC device information that the MTC device is sent, and will be described
MTC device information is sent to the applications；
If not including the identification information of the MTC device in the registration table, the SCEF is refused to applications transmission
The exhausted applications obtain the response message of the MTC device information.
2. according to the method described in claim 1, it is characterized in that, the acquisition MTC that the SCEF receives applications transmission is set
Before the request message of standby information, further include：
The SCEF receives the verification notification message that core net certification entity is sent, and leads to comprising verification in the verification notification message
The identification information for the applications crossed；
The SCEF establishes the registration table corresponding with the identification information for the applications being verified；
The SCEF carries out registration interaction with the MTC device, determines the applications that the MTC device allows, and will be described
The identification information of MTC device is added in registration table corresponding to identification information of the applications of the permission.
3. according to the method described in claim 2, it is characterized in that, the SCEF carries out registration interaction with the MTC device, really
Determine the applications that the MTC device allows, and the identification information of the MTC device is added to the applications of the permission
Registration table corresponding to identification information in, including：
The SCEF receives the login request message that the MTC device is sent after accessing network, in the login request message
Include the identification information of the identification information of the MTC device and the permitted applications of the MTC device；
The SCEF verifies the login request message, and after being verified, and will be wrapped in the login request message
The identification information of the MTC device contained is added to registration table corresponding to identification information of the permitted applications of the MTC device
In.
4. method described in any one of claim 1 to 3, which is characterized in that further include：
The SCEF receives registration table deletion request message, and the mark of applications is included in the registration table deletion request message
The identification information of information and the MTC device of required deletion；
The SCEF carries out legitimacy certification to the source of the registration table deletion request message, after certification passes through, from institute
State deleted in registration table corresponding to identification information of applications it is described needed for the identification information of MTC device deleted.
5. a kind of SCEF, which is characterized in that it is logical that the SCEF is applied to the MTC comprising MTC device under opening service capability framework
In letter system, the SCEF includes：
Receiving module, the request message of the acquisition MTC device information for receiving applications transmission, is wrapped in the request message
The identification information of identification information and the MTC device containing the applications；
Secure processing module for obtaining the registration table corresponding with the identification information of the applications, and determines the registration
Whether include the identification information of the MTC device in table, includes the permission applications acquisition information in the registration table
The identification information of MTC device；
Respond module, if the identification information for including the MTC device in the registration table, the SCEF is to the MTC
Equipment sends information acquisition request message；The acquisition response comprising the MTC device information that the MTC device is sent is received to disappear
Breath, and the MTC device information is sent to the applications；
The respond module, is additionally operable to：
If not including the identification information of the MTC device in the registration table, the SCEF is refused to applications transmission
The exhausted applications obtain the response message of the MTC device information.
6. SCEF according to claim 5, which is characterized in that the secure processing module is additionally operable to：
Before the request message that the receiving module receives the acquisition MTC device information that applications are sent, core net is received
The verification notification message that certification entity is sent, the mark letter verified comprising the applications being verified in notification message
Breath；Establish the registration table corresponding with the identification information for the applications being verified；Registration friendship is carried out with the MTC device
Mutually, the applications that the MTC device allows are determined, and the identification information of the MTC device is added to the outer of the permission
In registration table corresponding to identification information of portion's application.
7. SCEF according to claim 6, which is characterized in that the secure processing module is specifically used for：
The login request message that the MTC device is sent after accessing network is received, includes described in the login request message
The identification information of the identification information of MTC device and the permitted applications of the MTC device；
The login request message is verified, and after being verified, the MTC for including in the login request message is set
Standby identification information is added in registration table corresponding to identification information of the permitted applications of the MTC device.
8. the SCEF according to any one of claim 5~7, which is characterized in that the secure processing module is additionally operable to：
Registration table deletion request message is received, includes identification information and the institute of applications in the registration table deletion request message
The identification information for the MTC device that need to be deleted；
Legitimacy certification is carried out to the source of the registration table deletion request message to answer from the outside after certification passes through
The identification information of the required MTC device deleted is deleted in registration table corresponding to identification information.
9. a kind of communication system, which is characterized in that including：Applications, at least one MTC device, core net certification entity with
And the SCEF as described in any one of claim 5~8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510857806.7A CN105392112B (en) | 2015-11-30 | 2015-11-30 | Guard method, equipment and the system of MTC device information |
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|---|---|---|---|
| CN201510857806.7A CN105392112B (en) | 2015-11-30 | 2015-11-30 | Guard method, equipment and the system of MTC device information |
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| CN105392112A CN105392112A (en) | 2016-03-09 |
| CN105392112B true CN105392112B (en) | 2018-10-19 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107018536A (en) * | 2016-01-27 | 2017-08-04 | 中兴通讯股份有限公司 | MTC device information acquisition method and its equipment and system |
| CN107438290B (en) * | 2016-05-25 | 2021-07-20 | 中兴通讯股份有限公司 | Connection establishment method for small data transmission, SCEF entity and MME |
| CN107438291B (en) * | 2016-05-26 | 2020-08-11 | 中兴通讯股份有限公司 | Connection management method for small data transmission, SCEF entity, MME and UE |
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| CN102307348A (en) * | 2011-08-09 | 2012-01-04 | 中国联合网络通信集团有限公司 | MTC (machine type communication) equipment triggering method and system as well as mobile communication network equipment |
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| US9894464B2 (en) * | 2014-03-14 | 2018-02-13 | Intel IP Corporation | Conveyance of application communication patterns from an external application server to a 3rd generation partnership project system |
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| CN102307348A (en) * | 2011-08-09 | 2012-01-04 | 中国联合网络通信集团有限公司 | MTC (machine type communication) equipment triggering method and system as well as mobile communication network equipment |
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