CN102572714B - Trigger control method, device and system for machine type communication terminal - Google Patents
Trigger control method, device and system for machine type communication terminal Download PDFInfo
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- CN102572714B CN102572714B CN201210030657.3A CN201210030657A CN102572714B CN 102572714 B CN102572714 B CN 102572714B CN 201210030657 A CN201210030657 A CN 201210030657A CN 102572714 B CN102572714 B CN 102572714B
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- mtc terminal
- trigger message
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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]
Abstract
The invention discloses a trigger control method, a device and a system for an MTC machine type communication terminal. The method comprises the steps of: receiving trigger information sent by broadcasti through a base station by the MTC terminal in a detaching state; if the trigger information determined by the MTC terminal contains trigger prompt information to the MTC terminal, initiating a connection establishing process to communicate with the base station, or else maintaining an original state. Thus, by applying the invention, the MTC terminal in the detaching state can obtain the trigger information at the network side so as to establish connection with the network side when communication is needed.
Description
Technical field
The present invention relates to the communications field, particularly a kind of trigger control method, Apparatus and system of machine-type communication terminal.
Background technology
Machine to machine (Machine to Machine, M2M) communication is a kind of trend of following intelligent development, need to support machine-type communication (Machine Type Communications, MTC) function in 3-G (Generation Three mobile communication system) and long evolving system.MTC is as a kind of novel communication theory, its objective is and the communication technology of number of different types is organically combined, as: machine-to-machine communication, apparatus control communication, man-machine interaction communication, mobile interchange communication, thus the development promoting social production and life style.MTC be otherwise known as M2M communication or Internet of Things.The terminal with MTC function is called MTC terminal, and the current MTC terminal recognized has following features: (1) Hypomobility; (2) energy constraint, requires extremely low power consumption; (3) time of carrying out transfer of data with network side is controlled, and not high to requirement of real-time; (4) information transmission of small data quantity can only be carried out with network side; (5) can manage in units of group.Estimate in the communication system in future, MTC service will considerably beyond Human To Human (Human toHuman, H2H) communication service.
Current mobile communications network is for H2H communication scheme, wherein, network side is by the method triggering terminal of paging, then require that terminal is in attachment (attach) state, according to the paging cycle of acquiescence or the cycle monitoring seek channel of network side configuration, and carry out the measurement relevant to cell reselection periodically, if tracing area changes, then start cell updating course and carry out informing network side paging domain and change.
MTC terminal is applied in existing mobile communications network, because MTC terminal has the feature of Hypomobility and low-power consumption, and may not need to communicate for a long time, if make MTC terminal be in attach state for a long time, carry out period measurement, monitor the operation such as paging and reporting subdistrict renewal, so can bring serious power consumption problem; If make the MTC terminal that wouldn't carry out communicating be in attachment removal (detach) state, close the power consumption entities such as radio frequency, although can electricity be saved, but be in the MTC terminal not monitoring seek channel of detach state, then cannot be triggered by network side, thus cannot when needs communicate and network side connect.
Summary of the invention
The embodiment of the present invention provides a kind of trigger control method, Apparatus and system of MTC terminal, in order to the trigger message enabling the MTC terminal being in detach state obtain network side, when needs communicate and network side connect.
The trigger control method of a kind of MTC terminal that the embodiment of the present invention provides comprises:
The MTC terminal being in detach state receives the trigger message of base station by broadcast transmission;
If described MTC terminal is determined to comprise the triggering indication information to self in described trigger message, then initiate connection establishment process, communicate with base station, otherwise maintain the original state.
The trigger control method of a kind of MTC terminal that the embodiment of the present invention provides comprises:
Base station sends trigger message by broadcast to MTC terminal;
When base station comprises the triggering indication information to this MTC terminal in described trigger message, trigger this MTC terminal and initiate connection establishment process, and communicate with this MTC terminal.
The trigger control device of a kind of MTC terminal that the embodiment of the present invention provides comprises:
Receiver module, receives the trigger message of base station by broadcast transmission during for being in detach state in MTC terminal;
Connect and communication module, for when determining to comprise the triggering indication information to this MTC terminal in described trigger message, initiating connection establishment process, communicating with base station.
The trigger control device of a kind of MTC terminal that the embodiment of the present invention provides comprises:
Broadcast transmission module, for sending trigger message by broadcast to MTC terminal;
Trigger and communication module, during for comprising the triggering indication information to this MTC terminal in described trigger message, triggering this MTC terminal and initiating connection establishment process, and communicating with this MTC terminal.
The Triggering Control System of a kind of MTC terminal that the embodiment of the present invention provides comprises:
Base station, for sending trigger message by broadcast to MTC terminal, and when comprising the triggering indication information to this MTC terminal in described trigger message, triggering this MTC terminal and initiating connection establishment process, and communicating with this MTC terminal;
MTC terminal, for receiving the trigger message of base station by broadcast transmission, and when determining to comprise the triggering indication information to self in described trigger message, initiating connection establishment process, communicating with base station.
As seen through the above technical solutions, in the embodiment of the present invention, the MTC terminal being in detach state receives the trigger message of base station by broadcast transmission, if described MTC terminal is determined to comprise the triggering indication information to self in described trigger message, then initiate connection establishment process, communicate with base station, otherwise maintain the original state.Therefore, the embodiment of the present invention can make the MTC terminal being in detach state obtain the trigger message of network side, thus make MTC terminal enter the detach state of effectively saving electricity when not communicating, and can be triggered from detach state when needs communicate and enter normal connection status, thus communicate with network side.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of a specific embodiment of the inventive method;
Fig. 2 is the schematic flow sheet of another specific embodiment of the inventive method;
Fig. 3 is the schematic flow sheet of the another specific embodiment of the inventive method;
Fig. 4 is the structural representation of a specific embodiment of apparatus of the present invention;
Fig. 5 is the structural representation of another specific embodiment of apparatus of the present invention;
Fig. 6 is the structural representation of present system embodiment.
Embodiment
Existing mobile communications network, for H2H communication scheme, if utilize existing mobile communications network to support MTC service, just needs to be optimized according to the mechanism of feature to existing mobile communication network of MTC terminal.The embodiment of the present invention proposes a kind of trigger control method of MTC terminal, makes the MTC terminal being in detach state also can obtain the trigger message of network side.
Fig. 1 is the schematic flow sheet of a specific embodiment of the inventive method.
Shown in Figure 1, the trigger control method of a kind of MTC terminal that the embodiment of the present invention provides comprises following step:
Step 101: the MTC terminal being in detach state receives the trigger message of base station by broadcast transmission.
Here, the MTC terminal being in detach state receives the trigger message of base station by physical channel broadcast transmission, or receive base station according to the trigger message of setting cycle by broadcast transmission, or according to own service characteristic, receive the trigger message of base station by broadcast transmission at setting-up time point or time period.
Described trigger message comprises the traffic performance information that MTC server provides, or the identification information that base station and MTC terminal are made an appointment, the mode being worth label is adopted to distinguish whether initiate connection establishment process, or MTC terminal application layer scrutable and to triggering MTC terminal enter the relevant service data information of attach state, then by MTC terminal application layer decision whether leave detach state.
Step 102: if described MTC terminal is determined to comprise the triggering indication information to self in described trigger message, then initiate connection establishment process, communicate, otherwise maintain the original state with base station.
In the setting-up time of MTC terminal before entering detach state, need notice core net or this MTC terminal of MTC server can be triggered under detach state, make core net or MTC server preserve the positional information of this MTC terminal, trigger to carry out broadcast in corresponding region.Preferably, the positional information of described MTC terminal comprise described MTC terminal enter detach state before setting-up time in the positional information of Serving cell, or the positional information of tracking area, or absolute location information.
Trigger control method shown in Fig. 1 is equally also applicable to the MTC terminal being in attach state, then be in the MTC terminal of attach state, trigger message can be obtained according to existing paging mechanism, also can obtain trigger message by the method in the embodiment shown in Fig. 1 from broadcast message.
Fig. 2 is the schematic flow sheet of another specific embodiment of the inventive method.
Shown in Figure 2, the trigger control method of a kind of MTC terminal that the embodiment of the present invention provides comprises:
Step 201: base station sends trigger message by broadcast to MTC terminal.
Here, base station by physical channel to MTC terminal broadcast transmission trigger message, can send trigger message by broadcast to MTC terminal according to setting cycle, to simplify the process that MTC terminal reads broadcast, certainly, also can be, but not limited to is a kind of broadcast newly.
Step 202: when base station comprises the triggering indication information to this MTC terminal in described trigger message, triggers this MTC terminal and initiates connection establishment process, and communicate with this MTC terminal.
In embodiment illustrated in fig. 2, described MTC terminal comprises the MTC terminal being in detach state or the MTC terminal being in attach state.Described trigger message comprises the traffic performance information that MTC server provides, or the identification information that base station and MTC terminal are made an appointment, or MTC terminal application layer is scrutable and enter the relevant service data information of attach state to triggering MTC terminal.
In core net or the setting-up time of MTC server before MTC terminal enters detach state, know that this MTC terminal can be triggered under detach state, and preserve the positional information of this MTC terminal, trigger to carry out broadcast in corresponding region.Preferably, the positional information of described MTC terminal comprise described MTC terminal enter detach state before setting-up time in the positional information of Serving cell, or the positional information of tracking area, or absolute location information.
Relatively fixing with a position below, and be that example is described in detail in the MTC terminal that detach state can be triggered by network side.Shown in Figure 3, the trigger control method that the embodiment of the present invention provides comprises:
In the setting-up time of step 301:MTC terminal before entering detach state, this MTC terminal of informing network side can be triggered under detach state.
Here, if do not notify network side, the mode of signing characteristic also can be adopted.
Step 302: this MTC terminal of network side record enters the positional information of Serving cell in the setting-up time before detach state or tracking area.
Here, the absolute location information of this MTC terminal can also be recorded.
Step 303: when needs trigger this MTC terminal initiate connection communicate time, broadcast the trigger message for this MTC terminal in the Serving cell in the setting-up time of network side before this MTC terminal enters detach state or tracking area.
Here, the trigger message for this MTC terminal can be the announcement information that this MTC terminal of requirement that MTC server provides is connected with server, also can be available to the service data information of this MTC terminal.
Step 304: this MTC terminal receives the trigger message for this MTC terminal of network side by broadcast transmission, performs attach process, communicates with network side.
Here, relevant trigger message is transmitted to application layer by the Access Layer of this MTC terminal, and application layer notice low layer enters attach state.
In the embodiment shown in fig. 3, network side can the fixed position in the fixed cycle periodically be broadcasted, and such as, take 5120ms as the cycle, 200ms deviation post is the initial reception subframe of broadcast message, and receive window is identical with other system information block.
In order to support the MTC terminal of multiple detach state, network side can use multiple system information block to provide trigger message.When MTC terminal leaves attach state, for this MTC terminal specifies the system information block understood, or terminal is according to the regular system information block selecting to read voluntarily of setting.In addition, by arranging the trigger message in broadcast flexibly, triggering one group of terminal can be realized and connect, effectively reducing signaling traffic load.
Fig. 4 is the structural representation of a specific embodiment of apparatus of the present invention.
Shown in Figure 4, the trigger control device of a kind of MTC terminal that the embodiment of the present invention provides comprises:
Receiver module 41, receives the trigger message of base station by broadcast transmission during for being in detach state in MTC terminal;
Connect and communication module 42, for when determining to comprise the triggering indication information to this MTC terminal in described trigger message, initiating connection establishment process, communicating with base station.
Here, described receiver module 41 is for receiving the trigger message of base station by physical channel broadcast transmission.Described receiver module 41 is for receiving base station according to the trigger message of setting cycle by broadcast transmission.Described receiver module 41, for the traffic performance according to this MTC terminal, receives the trigger message of base station by broadcast transmission at setting-up time point or time period.
Described trigger message comprises the traffic performance information that MTC server provides, or the identification information that base station and MTC terminal are made an appointment, or MTC terminal application layer is scrutable and enter the relevant service data information of attach state to triggering MTC terminal.
This device also comprises further:
Notification module, for entering in the setting-up time before detach state in MTC terminal, notifies that described in core net or MTC server, MTC terminal can be triggered under detach state, makes core net or MTC server preserve the positional information of described MTC terminal.
Preferably, the positional information of described MTC terminal comprise described MTC terminal enter detach state before setting-up time in the positional information of Serving cell, or the positional information of tracking area, or absolute location information.
Fig. 5 is the structural representation of another specific embodiment of apparatus of the present invention.
Shown in Figure 5, the trigger control device of a kind of MTC terminal that the embodiment of the present invention provides comprises:
Broadcast transmission module 51, for sending trigger message by broadcast to MTC terminal;
Trigger and communication module 52, during for comprising the triggering indication information to this MTC terminal in described trigger message, triggering this MTC terminal and initiating connection establishment process, and communicating with this MTC terminal.
Here, described broadcast transmission module 51 for by physical channel to MTC terminal broadcast transmission trigger message.Described broadcast transmission module 51 is for sending trigger message by broadcast to MTC terminal according to setting cycle.
Described MTC terminal comprises the MTC terminal being in detach state or the MTC terminal being in attach state.
Described trigger message comprises the traffic performance information that MTC server provides, or the identification information that base station and MTC terminal are made an appointment, or MTC terminal application layer is scrutable and enter the relevant service data information of attach state to triggering MTC terminal.
If described MTC terminal is the MTC terminal being in detach state, then this device also comprises further:
Know and preservation module, for entering in MTC terminal in the setting-up time before detach state, knowing that described MTC terminal can be triggered under detach state, and preserving the positional information of described MTC terminal.
Preferably, the positional information of described MTC terminal comprise described MTC terminal enter detach state before setting-up time in the positional information of Serving cell, or the positional information of tracking area, or absolute location information.
Fig. 6 is the structural representation of present system embodiment.
Shown in Figure 6, the Triggering Control System of a kind of MTC terminal that the embodiment of the present invention provides comprises: base station 61 and MTC terminal 62, wherein,
Base station 61, for sending trigger message by broadcast to MTC terminal 62, and when comprising the triggering indication information to this MTC terminal 62 in described trigger message, triggers this MTC terminal 62 and initiates connection establishment process, and communicate with this MTC terminal 62;
MTC terminal 62, for receiving the trigger message of base station 61 by broadcast transmission, and when determining to comprise the triggering indication information to self in described trigger message, initiating connection establishment process, communicating with base station 61.
As seen through the above technical solutions, in the embodiment of the present invention, the MTC terminal being in detach state receives the trigger message of base station by broadcast transmission, if described MTC terminal is determined to comprise the triggering indication information to self in described trigger message, then initiate connection establishment process, communicate with base station, otherwise maintain the original state.Therefore, the embodiment of the present invention can make the MTC terminal being in detach state obtain the trigger message of network side, thus make MTC terminal enter the detach state of effectively saving electricity when not communicating, and can be triggered from detach state when needs communicate and enter normal connection status, thus communicate with network side.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if belong within the scope of the claims in the present invention and equivalent technologies thereof to these amendments of the present invention and modification, then the present invention is also intended to comprise these change and modification.
Claims (25)
1. a trigger control method for machine-type communication MTC terminal, is characterized in that, the method comprises:
The MTC terminal being in attachment removal state receives base station in system information block by the trigger message of broadcast transmission;
If described MTC terminal is determined to comprise the triggering indication information to self in described trigger message, then initiate connection establishment process, communicate with base station, otherwise maintain the original state;
Wherein, described trigger message comprises the traffic performance information that MTC server provides, or MTC terminal application layer scrutable and to triggering MTC terminal enter the relevant service data information of attachment state.
2. the method for claim 1, is characterized in that, receives base station and is comprised by the trigger message of broadcast transmission:
Receive the trigger message of base station by physical channel broadcast transmission.
3. the method for claim 1, is characterized in that, receives base station and is comprised by the trigger message of broadcast transmission:
Receive base station according to the trigger message of setting cycle by broadcast transmission.
4. the method for claim 1, is characterized in that, receives base station and is comprised by the trigger message of broadcast transmission:
According to traffic performance, receive the trigger message of base station by broadcast transmission at setting-up time point or time period.
5. the method for claim 1, is characterized in that, the method also comprises further:
In the setting-up time of MTC terminal before entering attachment removal state, notify that described in core net or MTC server, MTC terminal can be triggered under attachment removal state, makes core net or MTC server preserve the positional information of described MTC terminal.
6. method as claimed in claim 5, is characterized in that, the positional information of described MTC terminal comprise described MTC terminal enter attachment removal state before setting-up time in the positional information of Serving cell, or the positional information of tracking area, or absolute location information.
7. a trigger control method for machine-type communication MTC terminal, is characterized in that, the method comprises:
Base station sends trigger message by broadcast to MTC terminal in system information block;
When base station comprises the triggering indication information to this MTC terminal in described trigger message, trigger this MTC terminal and initiate connection establishment process, and communicate with this MTC terminal;
Wherein, described trigger message comprises the traffic performance information that MTC server provides, or MTC terminal application layer scrutable and to triggering MTC terminal enter the relevant service data information of attachment state.
8. method as claimed in claim 7, is characterized in that, base station sends trigger message by broadcast to MTC terminal and comprises:
Base station by physical channel to MTC terminal broadcast transmission trigger message.
9. method as claimed in claim 7, is characterized in that, base station sends trigger message by broadcast to MTC terminal and comprises:
Base station sends trigger message by broadcast to MTC terminal according to setting cycle.
10. as the method in claim 7 ~ 9 as described in any one, it is characterized in that, described MTC terminal comprises the MTC terminal being in attachment removal state or the MTC terminal being in attachment state.
11. methods as claimed in claim 7, it is characterized in that, if described MTC terminal is the MTC terminal being in attachment removal state, then the method also comprises further:
In core net or the setting-up time of MTC server before MTC terminal enters attachment removal state, know that described MTC terminal can be triggered under attachment removal state, and preserve the positional information of described MTC terminal.
12. methods as claimed in claim 11, is characterized in that, the positional information of described MTC terminal comprise described MTC terminal enter attachment removal state before setting-up time in the positional information of Serving cell, or the positional information of tracking area, or absolute location information.
The trigger control device of 13. 1 kinds of machine-type communication MTC terminal, is characterized in that, this device comprises:
Receiver module, receives base station in system information block by the trigger message of broadcast transmission during for being in attachment removal state in MTC terminal;
Connect and communication module, for when determining to comprise the triggering indication information to this MTC terminal in described trigger message, initiating connection establishment process, communicating with base station;
Wherein, described trigger message comprises the traffic performance information that MTC server provides, or MTC terminal application layer scrutable and to triggering MTC terminal enter the relevant service data information of attachment state.
14. devices as claimed in claim 13, is characterized in that, described receiver module is for receiving the trigger message of base station by physical channel broadcast transmission.
15. devices as claimed in claim 13, is characterized in that, described receiver module is for receiving base station according to the trigger message of setting cycle by broadcast transmission.
16. devices as claimed in claim 13, is characterized in that, described receiver module is used for the traffic performance according to this MTC terminal, receive the trigger message of base station by broadcast transmission at setting-up time point or time period.
17. devices as claimed in claim 13, it is characterized in that, this device also comprises further:
Notification module, for entering in the setting-up time before attachment removal state in MTC terminal, notifies that described in core net or MTC server, MTC terminal can be triggered under attachment removal state, makes core net or MTC server preserve the positional information of described MTC terminal.
18. devices as claimed in claim 17, is characterized in that, the positional information of described MTC terminal comprise described MTC terminal enter attachment removal state before setting-up time in the positional information of Serving cell, or the positional information of tracking area, or absolute location information.
The trigger control device of 19. 1 kinds of machine-type communication MTC terminal, is characterized in that, this device comprises:
Broadcast transmission module, for sending trigger message by broadcast to MTC terminal in system information block;
Trigger and communication module, during for comprising the triggering indication information to this MTC terminal in described trigger message, triggering this MTC terminal and initiating connection establishment process, and communicating with this MTC terminal;
Wherein, described trigger message comprises the traffic performance information that MTC server provides, or MTC terminal application layer scrutable and to triggering MTC terminal enter the relevant service data information of attachment state.
20. devices as claimed in claim 19, is characterized in that, described broadcast transmission module is used for by physical channel to MTC terminal broadcast transmission trigger message.
21. devices as claimed in claim 19, is characterized in that, described broadcast transmission module is used for sending trigger message by broadcast to MTC terminal according to setting cycle.
22., as the device in claim 19 ~ 21 as described in any one, is characterized in that, described MTC terminal comprises the MTC terminal being in attachment removal state or the MTC terminal being in attachment state.
23. devices as claimed in claim 19, it is characterized in that, if described MTC terminal is the MTC terminal being in attachment removal state, then this device also comprises further:
Know and preservation module, for entering in MTC terminal in the setting-up time before attachment removal state, knowing that described MTC terminal can be triggered under attachment removal state, and preserving the positional information of described MTC terminal.
24. devices as claimed in claim 23, is characterized in that, the positional information of described MTC terminal comprise described MTC terminal enter attachment removal state before setting-up time in the positional information of Serving cell, or the positional information of tracking area, or absolute location information.
The Triggering Control System of 25. 1 kinds of machine-type communication MTC terminal, is characterized in that, this system comprises:
Base station, for sending trigger message by broadcast to MTC terminal in system information block, and when comprising the triggering indication information to this MTC terminal in described trigger message, triggering this MTC terminal and initiating connection establishment process, and communicating with this MTC terminal;
MTC terminal, for receiving base station trigger message by broadcast transmission in described system information block, and when determining to comprise the triggering indication information to self in described trigger message, initiating connection establishment process, communicating with base station;
Wherein, described trigger message comprises the traffic performance information that MTC server provides, or MTC terminal application layer scrutable and to triggering MTC terminal enter the relevant service data information of attachment state.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210030657.3A CN102572714B (en) | 2012-02-10 | 2012-02-10 | Trigger control method, device and system for machine type communication terminal |
| PCT/CN2012/088120 WO2013117113A1 (en) | 2012-02-10 | 2012-12-31 | Trigger control method, device and system for machine-type communication terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210030657.3A CN102572714B (en) | 2012-02-10 | 2012-02-10 | Trigger control method, device and system for machine type communication terminal |
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| CN102572714A CN102572714A (en) | 2012-07-11 |
| CN102572714B true CN102572714B (en) | 2015-02-18 |
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| CN102572714B (en) * | 2012-02-10 | 2015-02-18 | 电信科学技术研究院 | Trigger control method, device and system for machine type communication terminal |
| CN103813276A (en) * | 2012-11-06 | 2014-05-21 | 中兴通讯股份有限公司 | Information sending method, MTC server, user equipment, and MTC system |
| CN103188822B (en) * | 2013-03-18 | 2015-08-19 | 华为技术有限公司 | A kind of machine communication method and apparatus |
| CN107040956B (en) * | 2016-02-03 | 2021-07-30 | 中国移动通信集团公司 | Measurement reporting management method in Internet of things, terminal and base station |
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| CN102045810A (en) * | 2009-10-09 | 2011-05-04 | 华为技术有限公司 | Method, device and system for accessing machine type communication terminal equipment to network |
| CN102149166A (en) * | 2010-02-10 | 2011-08-10 | 中兴通讯股份有限公司 | Method and system for selecting wireless access network |
| CN102264036A (en) * | 2010-05-28 | 2011-11-30 | 中兴通讯股份有限公司 | Offline terminal activating method and system, and machine type communication terminal |
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| CN102572714B (en) * | 2012-02-10 | 2015-02-18 | 电信科学技术研究院 | Trigger control method, device and system for machine type communication terminal |
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- 2012-12-31 WO PCT/CN2012/088120 patent/WO2013117113A1/en active Application Filing
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| CN102045810A (en) * | 2009-10-09 | 2011-05-04 | 华为技术有限公司 | Method, device and system for accessing machine type communication terminal equipment to network |
| CN102149166A (en) * | 2010-02-10 | 2011-08-10 | 中兴通讯股份有限公司 | Method and system for selecting wireless access network |
| CN102264036A (en) * | 2010-05-28 | 2011-11-30 | 中兴通讯股份有限公司 | Offline terminal activating method and system, and machine type communication terminal |
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| WO2013117113A1 (en) | 2013-08-15 |
| CN102572714A (en) | 2012-07-11 |
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