CN103460728A - User equipment registration method, and user equipment - Google Patents
User equipment registration method, and user equipment Download PDFInfo
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- CN103460728A CN103460728A CN2012800003367A CN201280000336A CN103460728A CN 103460728 A CN103460728 A CN 103460728A CN 2012800003367 A CN2012800003367 A CN 2012800003367A CN 201280000336 A CN201280000336 A CN 201280000336A CN 103460728 A CN103460728 A CN 103460728A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
- H04W60/04—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration using triggered events
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Abstract
A user equipment registration method, and a user equipment. The method comprises: a user equipment in a limited service state selecting a normal serving cell; and the user equipment initiating re-registration in the normal serving cell. Embodiments of the present invention solve the problem in the prior art that the user equipment in a limited service state cannot initiate normal business when selecting the normal serving cell, thereby ensuring that the user equipment in a limited service state rapidly completes normal registration after selecting the normal serving cell, and re-enters the normal service state, so as to subsequently initiate normal business. In this case, user requirements are satisfied and user experience is improved.
Description
The method and user equipment of user equipment registration
The present invention relates to communication technical field, the method and user equipment of more particularly to a kind of user equipment registration for technical field.Background technology
With continuing to develop for the communication technology, user requires also more and more higher to the service ability of the communications infrastructure, and the urgency communication in accident turns into user's focus of attention.Based on this, 3GPP normal structures start the standardization effort of packet domain urgency traffic in Rel-9, and the urgency traffic includes being in normal service state user equipment（UE, Uer Equipment) initiate urgency traffic with limited service state user equipment initiate urgency traffic.For normal service state, user equipment resides in the cell of a normal service and realizes normal registration, and user equipment initiates emergency packet data network（PDN, Packet Data Network) connection request flow sets up a urgent PDN connection, and pass through the urgent PDN connections set up and realize urgency traffic；For limited service state, user equipment resides in the cell of a limited service and initiates emergency attached, and urgent PDN connections are set up during emergency attached to realize urgency traffic.
But, if the user equipment of a normal registration, the cell of a limited service is moved to from the cell of a normal service, user equipment needs the position update flow initiated to network side, and the position update flow whether network side has the urgent PDN connections of activation to initiate user equipment according to current user equipment carries out different processing：
The first situation is：If user equipment has the urgent PDN connections of activation, network side receives the position updating request of user equipment.If user equipment is currently at Idle state, network side locally deletes all normal evolved packet systems（EPS, Evolved Packet System) bearer context, and instruction user equipment locally deletes all normal EPS bearer contexts；If user equipment is currently at connected state, network side initiates EPS load bearing deactivations flow and deletes all normal EPS bearer contexts.User equipment side only retains urgent PDN with network side and is connected, and user equipment is labeled as into emergency attached state.
Second of situation be：If the urgent PDN connections that user equipment is not activated, network side refuses the position updating request of user equipment, instruction user equipment present position limited-service, it is impossible to carry out normal business.Network side locally deletes all normal EPS bearer contexts of user equipment, and the user equipment is separated.User equipment into limited service state, and initiates cell-reselection procedure to choose the cell of a normal service after location updating refusal instruction is received.
In the research and practice process to prior art, it was found by the inventors of the present invention that in existing second of situation,
If user equipment fails to choose the cell of a normal service, user equipment can keep limited service state, but can not carry out regular traffic；If user equipment chooses the cell of a normal service, user equipment is desirable to carry out regular traffic.But, defined according to current 3GPP standard, user equipment in limited service state can only carry out cell selection or directly initiate emergency attached request, that is, limited service state user equipment is when choosing the cell of normal service, regular traffic can not be still initiated, so as to reduce customer service experience, and great complaint risk is brought to operator.The content of the invention
The embodiment of the present invention provides the method and user equipment of a kind of user equipment registration, to solve to be in the user equipment of limited service state in the prior art when choosing normal service cell, it is impossible to initiate the technical problem of regular traffic.
Based on this, the embodiment of the present invention provides a kind of method of user equipment registration, and methods described includes：User equipment in limited service state chooses normal service cell；
The user equipment initiates to re-register in the normal service cell.
The embodiment of the present invention provides a kind of user equipment, including：
Selecting unit, for selecting normal service cell when the user equipment is in limited service state；Unit is re-registered, for when the selecting unit chooses the normal service cell, initiating to re-register in the normal service cell.
As shown from the above technical solution, in the embodiment of the present invention, a normal service cell is chosen in the user equipment in limited service state, initiate to re-register in the normal service cell, solve in the prior art, user equipment in limited service state can only carry out urgency traffic when choosing a normal service cell, and can not initiate the technical problem of regular traffic.The embodiment of the present invention ensure that the user equipment in limited service state after normal service cell is chosen, normal registration is quickly completed, normal service state is reentered, in case subsequently initiating regular traffic, user's request is met, Consumer's Experience is improved.Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, the required accompanying drawing used in embodiment or description of the prior art will be briefly described below, apparently, drawings in the following description are only some embodiments of the present invention, for those of ordinary skill in the art, without having to pay creative labor, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of flow chart of the method for user equipment registration provided in an embodiment of the present invention；
Fig. 2 is a kind of flow chart of the first embodiment of the method for user equipment registration provided in an embodiment of the present invention；Fig. 3 is a kind of flow chart of the second embodiment of the method for user equipment registration provided in an embodiment of the present invention；
Fig. 4 is the flow chart of the 3rd embodiment of the method for provided in an embodiment of the present invention kind of user equipment registration;Fig. 5 is the first structural representation of provided in an embodiment of the present invention kind of user equipment；
Fig. 6 is second of structural representation of provided in an embodiment of the present invention kind of user equipment；
Fig. 7 is the third structural representation of provided in an embodiment of the present invention kind of user equipment；
Fig. 8 is the 4th kind of structural representation of provided in an embodiment of the present invention kind of user equipment, embodiment is described in further detail with embodiment to the embodiment of the present invention in order that those skilled in the art more fully understand the scheme of the embodiment of the present invention below in conjunction with the accompanying drawings.
In embodiments of the present invention, user equipment（UE, User Equipment) can for it is following any one, can be static or move, static UE can specifically include for terminal（Terminal) mobile station (Mobile Station), subscriber unit (Subscriber Unit) or platform (Station) etc., mobile UE can specifically include cell phone（Cellular Phone), personal digital assistant（PDA, Personal Digital Assistant) radio modem（), modem Wireless Telecom Equipment, handheld device（Handheld), laptop computer（Laptop Computer) wireless phone（Cordless Phone) or WLL（WLL, Wireless Local Loop) platform etc., above-mentioned UE can be distributed in whole wireless network.
Referring to Fig. 1, for a kind of flow chart of the method for user equipment registration provided in an embodiment of the present invention, methods described includes：
Step 101:User equipment in limited service state chooses normal service cell；
Wherein, in the embodiment of the present invention, into the user equipment of limited service state, referred to as limited service state user equipment.The user equipment in limited service state can initiate cell-reselection procedure, in order to select the cell of a normal service.
Step 102:The user equipment initiates to re-register in the normal service cell.
In this step, if the user equipment in limited service state chooses a normal service cell, it can directly initiate to re-register flow to network side in the normal service cell, if re-registering success, regular traffic can be initiated.
In the embodiment of the present invention, a normal service cell is chosen in the user equipment in limited service state, initiate to re-register in the normal service cell, solve in the prior art, user equipment in limited service state is when choosing a normal service cell, urgency traffic can only be carried out, and the technical problem of regular traffic can not be initiated.The embodiment of the present invention ensure that the user equipment in limited service state after normal service cell is chosen, normal registration is quickly completed, normal service state is reentered, in case subsequently initiating regular traffic, user's request is met, Consumer's Experience is improved.
In a kind of optional embodiment, if the user equipment in limited service state chooses the normal service cell that a normal service cell is registered for the user equipment before limited service state is entered, current service condition is normal service state from limited service state transition by the user equipment, and is maintained at Idle state；The user equipment is normal service state in migration, and keep under Idle state, it can directly initiate to re-register to network side in the normal service cell, can also need to initiate regular traffic, then re-register to network side initiation in the normal service cell.
Wherein, initiate to re-register to network side in the normal service cell to specifically include：The limited service state user equipment initiates service request information or location update request message in the normal service cell to the mobile management net element of network side；The limited service state user equipment receives the service request information of the mobile management net element transmission or the refuse information of position updating request, and the refuse information includes the limited service user equipment by the information of implicit detach；The limited service state user equipment initiates normal registration again after knowing by implicit detach to the mobile management net element.
In the embodiment, the user equipment in limited service state is realized after normal service cell is chosen, normal registration flow directly can be initiated again in the normal service cell, just can also initiate normal registration flow again in the normal service cell when needing to initiate regular traffic；And after the completion of normal registration, normal service state is reentered, to initiate regular traffic, user's request is met, improves Consumer's Experience.
In an alternative embodiment, when the limited service state user equipment chooses a normal service cell, methods described can also include：The user equipment in limited service state continues to keep current service condition to be limited service state.Afterwards, the user equipment in limited service state initiates to re-register in the normal service cell to the mobile management net element of network side.
Wherein, the user equipment initiates to re-register to specifically include in the normal service cell to network side：The user equipment updates request message in the normal service cell to mobile management net element launch position；The user equipment receives the refuse information for the position updating request that the mobile management net element is sent, and the refuse information includes the user equipment by the information of implicit detach；The user equipment initiates normal registration again after knowing by implicit detach to the mobile management net element.
In the embodiment, in the user equipment in limited service state after normal service cell is chosen, if user equipment keeps current service condition to be limited service state, then normal registration flow is directly initiated again to mobile new management network element in normal service cell, after the completion of normal registration, normal service state is reentered, to initiate regular traffic, user's request is met, Consumer's Experience is improved.
In another optional embodiment, when the user equipment in limited service state chooses a normal service cell, methods described can also include：The user equipment is in all normal evolution packets of normal service cell release
Under system bearing above, into normal service released state.Afterwards, the user equipment initiates normal registration again in the normal service cell after normal service released state is entered to mobile management net element.
In the embodiment, user equipment in limited service state is after normal service cell is chosen, the user equipment performs separation process in the normal service cell, that is, discharging can be totally separated above under all normal evolved packet system carryings, can also be partially separated；Afterwards, into normal service released state, then, directly after the completion of the normal service cell initiates normal registration flow, normal registration to mobile management net element again, normal service state is reentered, to initiate regular traffic, user's request is met, Consumer's Experience is improved.
For the ease of the understanding of those skilled in the art, illustrated below with specific application example.It should be noted that in the present embodiment, mobile management net element can be mobile management entity（MME, Mobility Management Entity) or Serving GPRS Support Node（Any of SGSN, Serving GPRS Support Node).For convenience of description, the mobile management net element that following applications are applied in example is specifically described by taking MME as an example.
Also referring to Fig. 2, being a kind of flow chart of first application example of the method for user equipment registration provided in an embodiment of the present invention；In the present embodiment, the UE in limited service state is when performing the selection of normal service cell, if the normal service cell that the normal service cell of selection is registered for the user equipment before limited service state is entered.The service condition of itself is changed into normal service registration state by UE from limited service registration state, and is continually maintained in Idle state.The present embodiment is subsequently to have during regular traffic initiation, and UE is initiated exemplified by se ce request procedure or position update flow.MME because UE is in separation state and reject the service request or position updating request, and indicate that UE initiates normal attachment flow again.UE initiates normal attachment flow after MME instruction is received, again, realizes the normal registration again to MME.The present embodiment implements flow as shown in Fig. 2 specifically including：
Step 201:UE normally adheres in a normal service cell, and foundation has some normal EPS bearer contexts, but does not set up urgent PDN connections；
Step 202:UE is moved, into a limited service cell；
Step 203:UE updates to MME launch positions to be asked；
Step 204:MME is sent to UE indicates UE current areas limited-service in the refuse information of position updating request, the refuse information；
Step 205:MME locally discharges all normal EPS bearer contexts of the UE, and UE is separated；That is, in step 202 to 205, due to UE movements, it enters a limited service cell from a normal service cell, now, and UE needs the location updating initiated to MME.Because the UE is in the serving cell limited-service, therefore MME refuses the position updating request, and UE current areas limited-service, and locally all release UE normal EPS bearer contexts are indicated in refuse information, UE is separated.
Step 206:UE knows current area limited-service after the MME refuse information of location updating is received,
Then enter limited service and register state, then initiate cell-reselection procedure so as to choose a normal service cell；That is, when UE enters limited service and registers state, although showing that UE, still in registration state, regular traffic can not be carried out in the cell.Then, UE performs cell selection so as to choose the cell of a normal service.
Step 205 and step 206 can also be carried out simultaneously without temporal sequencing.
Step 207:If UE chooses a normal service cell and the cell belongs to the band of position of normal registration before UE, the service condition of itself is changed into normal service registration state by UE from limited service registration state, and is continually maintained in Idle state；
After the step 207, step 209 can be directly performed, step 208 can also be first carried out, step 209 is being performed;The present embodiment is not limited to this exemplified by performing step 208.
Step 208:If the UE in Idle state needs to initiate regular traffic；
Step 209:UE initiates service request or position updating request to MME；
UE initiates service request or position updating request in normal service cell to the MME for servicing the cell.
Step 210:MME, which is sent to UE in the refuse information of the service request or the refuse information of position updating request, the refuse information, indicates UE by the information of MME implicit detach；
That is, in this step, MME because UE is in separation state and reject the service request or position updating request.
Step 211:UE initiates normal attachment flow after knowing by MME implicit detach, directly.
That is, UE is receiving the refuse information of service request refusal or position updating request, and it is apprised of after MME implicit detach, directly initiate normal attachment flow, to realize the normal registration again to MME, and after succeeding in registration, regular traffic can be initiated.
Also referring to Fig. 3, in being a kind of flow chart of the second embodiment of the method for user equipment registration provided in an embodiment of the present invention, the present embodiment, the UE in limited service state chooses a normal service cell when performing the selection of normal service cell.UE keeps the service condition of limited service state to be limited service login state, then, and horse back launch position updates request.MME refuses position updating request because UE is in separation state, and indicates that UE initiates normal attachment flow again.UE initiates normal attachment flow after MME instruction is received, again, realizes the normal registration again to MME.The present embodiment implements process as shown in figure 3, specifically including：
Step 301 refers to the step 201 in above-mentioned first embodiment to step 206, will not be repeated here to step 306.
Step 307:If UE chooses a normal service cell；
UE can continue current service condition to remain limited service state；
Step 308:UE updates to MME launch positions to be asked；
Step 309:MME, which is sent to UE in the refuse information of the service request or the refuse information of position updating request, the refuse information, indicates UE by the information of MME implicit detach；
In this step, MME refuses position updating request because UE is in separation state, and indicates UE by MME implicit detach in refuse information.
Step 310:UE initiates normal attachment flow after knowing by MME implicit detach, directly.
After normal attachment flow is initiated, MME normal registration again is realized, in case subsequently initiating regular traffic.
Also referring to Fig. 4, in being a kind of flow chart of the 3rd embodiment of the method for user equipment registration provided in an embodiment of the present invention, the present embodiment, the UE in limited service state chooses a normal service cell when performing the selection of normal service cell.UE performs separation process, that is, discharges after all normal EPS bearer contexts, and state is separated into normal service, and initiates normal attachment flow, realizes the normal registration again to MME.The present embodiment implements process as shown in figure 4, specifically including：
Step 401 refers to the step 201 in above-mentioned first embodiment to step 206, will not be repeated here to step 406.
Step 407:If UE chooses a normal service cell, UE performs separation process, that is, discharges all normal EPS bearer contexts, afterwards, into separation state；
Step 408:UE initiates normal attachment flow to MME；
After normal attachment flow is initiated, the normal registration again to MME is realized, in case subsequently initiating regular traffic.From above-described embodiment, the embodiment of the present invention proposes a kind of method of the registration of user equipment, to the user equipment in limited service state when choosing normal service cell, the user equipment performs separation process, and the normal registration flow initiated again to MME.The embodiment of the present invention ensure that the user equipment in limited service state after normal service cell is chosen, normal registration is quickly completed, normal service state is reentered, in case subsequently initiating regular traffic, user's request is met, Consumer's Experience is improved.
Implementation process based on the above method, the embodiment of the present invention also provides a kind of user equipment, and its structural representation refers to Fig. 5, and the user equipment includes：Selecting unit 51 and unit 52 is re-registered, wherein, the selecting unit 51, for selecting normal service cell when the user equipment is in limited service state；Unit 52 is re-registered, for when selecting unit 51 chooses normal service cell, initiating to re-register in the normal service cell.
Optionally, the unit 52 that re-registers includes：The attachment subelement 522 of subelement 521 and first is separated, wherein, the separation subelement 521, for performing separation process in the normal service cell；The first attachment subelement 522, for after the separation subelement 521 performs separation process, being initiated again to mobile management net element
Attachment, as indicated with 6, Fig. 6 is the structural representation of second of user equipment provided in an embodiment of the present invention to its structural representation.
Optionally, the selecting unit 51 includes：Subelement 511 and state transition subelement 512 are selected, wherein, the selection subelement 511, the normal service cell registered for the user equipment selection in limited service state before limited service state is entered；The state transition subelement 512, for when the selection subelement 511 chooses the normal service cell, by the user equipment from limited service state transition to normal service state, and being maintained at idle condition；Re-register unit 52, specifically for the state transition subelement by the user equipment from limited service state transition to normal service state, and when being maintained at Idle state, initiate to re-register in the normal service cell.Certainly, it is described to re-register unit, it is specific can be also used for the state transition subelement by the user equipment from limited service state transition to normal service state, and when being maintained at Idle state, and when needing to initiate regular traffic, initiate to re-register in the normal service cell, as shown with 7, Fig. 7 is the structural representation of the third user equipment provided in an embodiment of the present invention to its structural representation.
Optionally, the user equipment can also include：Holding unit, for when the selection list member chooses a normal service cell, it to be limited service state to continue the service condition before keeping；Afterwards, when the selection subelement chooses a normal service cell, initiate to re-register in the normal service cell.
Optionally, on the basis of Fig. 5, the unit that re-registers includes：Transmission sub-unit, receiving subelement and the second attachment subelement, wherein, the transmission sub-unit, for initiating service request information or location update request message to mobile management net element in the normal service cell；The receiving subelement, refuse information or the refuse information of location update request message for receiving the service request information that the mobile management net element is sent, the refuse information includes the user equipment by the information of implicit detach；The second attachment subelement, for after knowing by implicit detach, initiating to adhere to again to the mobile management net element；
Optionally, on the basis of Fig. 7, the unit 52 that re-registers includes：Transmission sub-unit 523, the attachment subelement 525 of receiving subelement 524 and second, the function of its unit and effect refer to above-mentioned, and as depicted in figure 8, Fig. 8 is the structural representation of the 4th kind of user equipment provided in an embodiment of the present invention to its structural representation.
The implementation process of unit in the user equipment, refers to corresponding implementation process in the above method, will not be repeated here.
It should be noted that, herein, such as first and second or the like relational terms are used merely to make a distinction an entity or operation with another entity or operation, and not necessarily require or imply between these entities or operation there is any this actual relation or order.And, term " including ", " including " or any other variant thereof is intended to cover non-exclusive inclusion, so that process, method, article or equipment including a series of key elements not only include those key elements, but also other key elements including being not expressly set out, or also include to be this
Process, method, article or the intrinsic key element of equipment.In the absence of more restrictions, the key element limited by sentence " including one ... ", it is not excluded that also there is other identical element in the process including the key element, method, article or equipment.
Through the above description of the embodiments, those skilled in the art can be understood that the present invention can add the mode of required general hardware platform to realize by software, can certainly the former be more preferably embodiment by hardware, but in many cases.Understood based on such, the part that technical scheme substantially contributes to prior art in other words can be embodied in the form of software product, the computer software product can be stored in storage medium, such as ROM/RAM, magnetic disc, CD, including some instructions are to cause a computer equipment（Can be personal computer, server, or network equipment etc.）Perform the method described in some parts of each embodiment of the invention or embodiment.
Described above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; some improvements and modifications can also be made, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (1)
- Claim1st, a kind of method of user equipment registration, it is characterised in that including：User equipment in limited service state chooses normal service cell；The user equipment initiates to re-register in the normal service cell.2nd, according to the method described in claim 1, it is characterised in that the user equipment the normal service cell initiate re-register, including：The user equipment performs separation process in the normal service cell；Initiate to adhere to again to mobile management net element.3rd, according to the method described in claim 1, it is characterised in that the user equipment in limited service state chooses normal service cell, including：The normal service cell that user equipment selection in limited service state is registered before limited service state is entered；The user equipment is maintained at Idle state from limited service state transition to normal service state.4th, the method according to claim 1 or 3, it is characterised in that the user equipment initiates to re-register in the normal service cell, including：The user equipment initiates service request information or location update request message in the normal service cell to mobile management net element；The user equipment receives the refuse information or the refuse information of the location update request message for the service request information that the mobile management net element is sent, and the refuse information includes the user equipment by the information of implicit detach；The user equipment initiates to adhere to again after knowing by implicit detach to the mobile management net element.5th, a kind of user equipment, it is characterised in that including：Selecting unit, for selecting normal service cell when the user equipment is in limited service state；Unit is re-registered, for when the selecting unit chooses the normal service cell, initiating to re-register in the normal service cell.6th, user equipment according to claim 5, it is characterised in that the unit that re-registers includes：Subelement is separated, for performing separation process in the normal service cell；First attachment subelement, for after the separation subelement performs separation process, initiating to adhere to again to mobile management net element.7th, user equipment according to claim 5, it is characterised in that the selecting unit includes：Select subelement, in limited service state the user equipment selection enter limited service state it The normal service cell of preceding registration；State transition subelement, for when the selection subelement chooses the normal service cell, by the user equipment from limited service state transition to normal service state, and being maintained at idle condition.8th, the user equipment according to claim 5 or 7, it is characterised in that the unit that re-registers includes：Transmission sub-unit, for initiating service request information or location update request message to mobile management net element in the normal service cell；Receiving subelement, refuse information or the refuse information of the location update request message for receiving the service request information that the mobile management net element is sent, the refuse information includes the user equipment by the information of implicit detach；Second attachment subelement, for after knowing by implicit detach, initiating to adhere to again to the mobile management net element.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2012/073553 WO2013149389A1 (en) | 2012-04-05 | 2012-04-05 | User equipment registration method, and user equipment |
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| CN103460728A true CN103460728A (en) | 2013-12-18 |
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| CN2012800003367A Pending CN103460728A (en) | 2012-04-05 | 2012-04-05 | User equipment registration method, and user equipment |
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| WO (1) | WO2013149389A1 (en) |
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| CN100527872C (en) * | 2006-03-31 | 2009-08-12 | 华为技术有限公司 | Implementing of reattachment in radio evolution network |
| CN101494845B (en) * | 2008-01-25 | 2011-04-20 | 华为技术有限公司 | Method for recovery of context after user conceal separation, network element and system |
| CN101848449B (en) * | 2009-03-24 | 2013-12-04 | 华为技术有限公司 | Method, device and system for user management and state maintenance |
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2012
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- 2012-04-05 WO PCT/CN2012/073553 patent/WO2013149389A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101841793A (en) * | 2009-03-20 | 2010-09-22 | 中兴通讯股份有限公司 | Method and system for logging off emergency call user |
| CN101730036A (en) * | 2009-03-24 | 2010-06-09 | 中兴通讯股份有限公司 | Method, device and user facility for changing attachment state |
| CN101998331A (en) * | 2009-08-21 | 2011-03-30 | 大唐移动通信设备有限公司 | Identification method and equipment for user equipment registration status |
| CN102036207A (en) * | 2009-09-30 | 2011-04-27 | 中兴通讯股份有限公司 | Switching method and device for service state of terminal |
| US20110188416A1 (en) * | 2010-02-02 | 2011-08-04 | Stefano Faccin | System and method for packetized emergency messages |
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| WO2013149389A1 (en) | 2013-10-10 |
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Application publication date: 20131218 |