CN104144391A - Method and device for achieving USSD service under LTE network - Google Patents
Method and device for achieving USSD service under LTE network Download PDFInfo
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Abstract
The invention discloses a method and device for achieving a USSD service under an LTE network. The method comprises the steps that under the situation that a network selection mode is an LTE preference mode or an LTE mode, EPS and IMSI combined attachment is started, and situation information about whether the LTE network supports CSFB or not is obtained; when a terminal starts the USSD service, if a network registered by the terminal at current is the LTE network, whether the LTE network supports CSFB or not is determined according to the situation information; if it is determined that the LTE network supports CSFB, a corresponding cell is switched and has access to a CS domain so as to execute the USSD service according to CSFB standard protocols, and if it is determined that the LTE network does not support CSFB, when a non-LTE network exists around, a user is reminded that the current LTE network does not support the USSD service and needs to be switched into the non-LTE network; the terminal switches the network selection mode into a non-LTE network mode according to operation by the user and has access to the corresponding non-LTE network to execute the USSD service.
Description
Technical field
The present invention relates to field of mobile communication, particularly relate to a kind of Long Term Evolution (Long Term Evolution, referred to as LTE) realize method and the device of unstructured supplementary data traffic (UnstructuredSupplementaryServiceData, referred to as USSD) business under network.
Background technology
In the prior art, LTE adopts packet-switch technology, is a network based on whole network agreement (Internet Protocol, referred to as IP), and its all business is all packet switched mode instead of early stage circuit switched mode; USSD is based on circuit domain (Circuit Switched Domain, referred to as CS) business, be usually used in realizing prepaid mobile phone recharging, inquiry into balance, set meal order etc., it is the very important value-added service implementation of operator, in today of LTE fast development, how under LTE network, realizing USSD business is a urgent problem.
At the initial stage of LTE networking, for the consideration of cost and the investment of protection existing CS territory, the traditional CS such as voice, USSD business is still processed in the CS territory of 3G/2G network, and LTE is deal with data business only.Under LTE, realizing at present CS business is by circuit domain dropping (Circuit Switched Fallback, referred to as CSFB) technology, be that UE is by initiating Evolved Packet System (Evolved Packet System, referred to as EPS)/international mobile subscriber identity (InternationalMobileSubscriberIdentificationNumber, referred to as IMSI) associating attachment flow, in Attach Request message, carry CS Fallback instruction, can adhere to like this LTE network and 2G/3G network simultaneously.
For the CS business of Mobile Originating, UE is to general continental rise Radio Access Network (the Evolved Universal Terrestrial Radio Access Network of evolution, referred to as E-UTRAN) transmission CS service request, under the help of EPS network, complete object community and select, be linked into and in CS territory, complete follow-up CS business; For the CS business of Mobile Terminating, by (the Mobile Switching Center of mobile switching centre, referred to as MSC) by current service mobility management entity (the Mobility Management Entity of Paging message informing UE of SGs interface, referred to as MME), MME indicates it to complete the access in cell reselection and CS territory according to the EPS link information of current UE (EPS Connection Management, referred to as ECM) state.
But CSFB is a transitional technology at LTE initial stage, itself also exists some problems, CS session meeting cause LTE frequently pattern switch, for example, receive some harassing calls etc. and all can cause switching, make user's experience very poor; In addition, CSFB technical requirement LTE and 2G/3G cover simultaneously, in disposing, need to upgrade all and LTE has the MSC of overlapping wireless coverage area, to support the function such as co-location renewal, paging, short message, USSD of SGs interface, cost can be very high, and single wireless voice calling continuity (SingleRadioVoiceCallContinuity, referred to as SRVCC) afterwards the what's new of MSC will leave unused.Support CSFB so also there are a lot of operators not plan to dispose, so within the even longer time of LTE initial stage, support CSFB and do not support the network of CSFB all can exist.
Therefore, be badly in need of at present a kind of technical scheme, support situation that can adaptive network, no matter whether network supports CSFB, can allow user be convenient to use USSD business, avoids because the network selection pattern that uses USSD business to cause is switched the impact bringing.
Summary of the invention
In view of the above problems, the present invention has been proposed to method and the device of realizing USSD business under a kind of LTE network that overcomes the problems referred to above or address the above problem are at least in part provided.
The invention provides a kind of method that realizes USSD business under LTE network, comprise: be LTE mode of priority or LTE pattern in the network selection pattern of terminal, terminal is initiated Evolved Packet System EPS and international mobile subscriber identity IMSI and is combined and adhere to, and obtains LTE network and whether support the situation information of circuit domain dropping CSFB according to the feedback information of LTE network; In the time that terminal is initiated USSD business, if the current network type of registering of terminal is LTE network, according to circumstances information determines whether LTE network supports CSFB, support if be defined as, carry out corresponding community according to CSFB standard agreement and switch and be linked in CS territory and carry out USSD business, if be defined as not supporting, there is non-LTE network around determining time, the current LTE network of prompting user is not supported USSD business, need to be switched to non-LTE network; Terminal is switched to non-LTE network according to user's operation by network selection pattern, and is linked into corresponding non-LTE network execution USSD business.
Preferably, according to user's operation, network selection pattern is switched to non-LTE network, and after being linked into corresponding non-LTE network execution USSD business, method also comprises: terminal detects that user initiates data service; Whether the current network selection pattern of terminal inquiry is LTE mode of priority or LTE pattern, if the judgment is Yes, direct executing data business, otherwise prompting user is switched to LTE network; According to user's operation, automatically network selection pattern is switched to LTE mode of priority or LTE pattern, and again look for net and networking operation.
Whether support the situation information of circuit domain dropping CSFB specifically comprise: the situation information of adhering to of sending to terminal according to LTE network obtaining LTE network in the additional renewal result field in acknowledge message and whether support circuit domain dropping CSFB if preferably, obtaining LTE network according to the feedback information of LTE network.
Preferably, said method also comprises: do not support CSFB if terminal is determined LTE network, while there is not non-LTE network, cannot carry out USSD business to user's prompting around determining.
Preferably, non-LTE network comprises: second generation 2G network and third generation 3G network.
The present invention also provides the device of realizing USSD business under a kind of LTE network, comprise: attachable module, being used for is LTE mode of priority or LTE pattern in the network selection pattern of terminal, initiate Evolved Packet System EPS and international mobile subscriber identity IMSI and combine and adhere to, and obtain LTE network and whether support the situation information of circuit domain dropping CSFB according to the feedback information of LTE network; Processing module, for in the time that terminal is initiated USSD business, if the current network type of registering of terminal is LTE network, according to circumstances information determines whether LTE network supports CSFB, if be defined as supporting, carry out corresponding community according to CSFB standard agreement and switches and be linked into and in CS territory, carry out USSD business, do not support if be defined as, there is non-LTE network around determining time, the current LTE network of prompting user is not supported USSD business, need to be switched to non-LTE network; Handover module, for according to user's operation, network selection pattern being switched to non-LTE network, and is linked into corresponding non-LTE network execution USSD business.
Preferably, handover module is further used for: according to user's operation, network selection pattern is being switched to non-LTE network, and after being linked into corresponding non-LTE network execution USSD business, if detect that user initiates data service, whether inquire about current network selection pattern is LTE mode of priority or LTE pattern, if the judgment is Yes, and direct executing data business, otherwise prompting user is switched to LTE network; And according to user's operation, automatically network selection pattern is switched to LTE mode of priority or LTE pattern, and again look for net and networking operation.
Preferably, processing module is specifically for the situation information of adhering to of sending to terminal according to LTE network obtaining LTE network in the additional renewal result field in acknowledge message and whether support circuit domain dropping CSFB.
Preferably, processing module is further used for: if definite LTE network is not supported CSFB, while there is not non-LTE network, cannot carry out USSD business to user's prompting around determining.
Preferably, non-LTE network comprises: second generation 2G network and third generation 3G network.
Beneficial effect of the present invention is as follows:
By means of the technique scheme of the embodiment of the present invention, can save the great expense expenditure that the upgrading MSC of operator brings, ensure again normally carrying out of USSD business simultaneously; Make user enjoying in high speed that LTE brings experiences, can be convenient to use again USSD and carry out business handling.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of specification, and for above and other objects of the present invention, feature and advantage can be become apparent, below especially exemplified by the specific embodiment of the present invention.
Brief description of the drawings
By reading below detailed description of the preferred embodiment, various other advantage and benefits will become cheer and bright for those of ordinary skill in the art.Accompanying drawing is only for the object of preferred implementation is shown, and do not think limitation of the present invention.And in whole accompanying drawing, represent identical parts by identical reference symbol.In the accompanying drawings:
Fig. 1 is the flow chart of realizing the method for USSD business under the LTE network of the embodiment of the present invention;
Fig. 2 is the preferred terminal module structural representation of the one of the embodiment of the present invention;
Fig. 3 is the detailed process chart of realizing the method for USSD business under the LTE network of the embodiment of the present invention;
Fig. 4 is the flow chart that the network selection pattern of passing through detection UE of the embodiment of the present invention arranges to ensure preferentially to use when user initiates data service LTE network;
Fig. 5 is the structural representation of realizing the device of USSD business under the LTE network of the embodiment of the present invention.
Embodiment
Exemplary embodiment of the present disclosure is described below with reference to accompanying drawings in more detail.Although shown exemplary embodiment of the present disclosure in accompanying drawing, but should be appreciated that and can realize the disclosure and the embodiment that should do not set forth limits here with various forms.On the contrary, it is in order more thoroughly to understand the disclosure that these embodiment are provided, and can be by the those skilled in the art that conveys to complete the scope of the present disclosure.
The invention provides method and the device of under a kind of LTE network, realizing USSD business, below in conjunction with accompanying drawing and embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, does not limit the present invention.
Embodiment of the method
Before the embodiment of the present invention is described, it should be noted that in the embodiment of the present invention and relate to network selection pattern, determine terminal priority of registration LTE or 3G/2G network.Generally LTE terminal can provide the setting option of LTE mode of priority (LTE Prefer), LTE pattern (LTE Only), 3G pattern (3G Only) and 2G pattern (2G Only), in these four kinds arrange, while being only set to LTE Prefer and LTE Only, just may be registered to LTE network, there is the situation of processing USSD service fail, only have the just following special processing of needs in the time that network selection pattern one of is above-mentioned two situations and is registered on LTE network.
According to embodiments of the invention, a kind of method that realizes USSD business under LTE network is provided, Fig. 1 is the flow chart of realizing the method for USSD business under the LTE network of the embodiment of the present invention, as shown in Figure 1, comprise following processing according to the method that realizes USSD business under the LTE network of the embodiment of the present invention:
Step 101, is LTE mode of priority or LTE pattern in the network selection pattern of terminal, and terminal is initiated EPS and IMSI and combined and adhere to, and obtains LTE network and whether support the situation information of circuit domain dropping CSFB according to the feedback information of LTE network;
Step 102, in the time that terminal is initiated USSD business, terminal is obtained the network type of current registration, if network type is non-LTE network, directly carry out USSD business, if network type is LTE network, according to circumstances information determines whether LTE network supports CSFB, support if be defined as, carry out corresponding community according to CSFB standard agreement and switch and be linked in CS territory and carry out USSD business, if be defined as not supporting, there is non-LTE network around determining time, the current LTE network of prompting user is not supported USSD business, need to be switched to non-LTE network;
Wherein, above-mentioned non-LTE network comprises: second generation 2G network and third generation 3G network.
In step 102, what terminal can send to terminal according to LTE network adhere to obtains LTE network in additional renewal result (the Additional update result) field in acknowledge message (ATTACH ACCEPT) and whether supports the situation information of circuit domain dropping CSFB.
In step 102, if determining LTE network, terminal do not support CSFB, there is not non-LTE network around determining time, cannot carry out USSD business to user's prompting.
Step 103, terminal is switched to non-LTE network according to user's operation by network selection pattern, and is linked into corresponding non-LTE network execution USSD business.
In embodiments of the present invention, after step 103, in order not affect user's data service, need to be handled as follows:
Step 1, terminal detects that user initiates data service;
Step 2, whether the current network selection pattern of terminal inquiry is LTE mode of priority or LTE pattern, if the judgment is Yes, and direct executing data business, otherwise prompting user is switched to LTE network;
Step 3, according to user's operation, switches to network selection pattern LTE mode of priority or LTE pattern automatically, and again looks for net and networking operation.
As above, in actual applications, first need to judge whether network supports CSFB, this operation is Additional update result field in the ATTACH ACCEPT message that network returns while adhering to by start, if this field indication network is supported CSFB, terminal does not need special processing, directly according to the flow processing of CSFB; If this field indication network is not supported CSFB, terminal need to obtain whether have 3G or 2G network around according to up-to-date system message, if existed, provide prompting and inform that the current LTE network of user do not support USSD, need to be switched under 3G/2G network just passable, if user selects to switch, terminal automatically completes switching flow and processes USSD business.Because whether terminal cannot be predicted user and also can continue sending after a USSD instruction, so can not directly switch back to LTE network, this will inevitably affect user's data service, so the invention provides another one mechanism solves, in the time that user initiates to network, first UE can detect current network schemer, if network schemer is not LTE Prefer or LTE Only(remarks: in general, LTE terminal should preferentially be used LTE network), point out user whether to be switched to LTE network, if user selects to switch, UE automatically completes follow-up network selection pattern switching and again looks for network process, thereby ensure UE priority of registration LTE network.
Below in conjunction with accompanying drawing, the technique scheme of the embodiment of the present invention is elaborated.
Fig. 2 is the preferred terminal module structural representation of the one of the embodiment of the present invention, and preferably, in embodiments of the present invention, terminal comprises upper layer application UI interface; Middle judge module and bottom Service Processing Module, wherein, judge module is mainly used in the judgement of network registry type, the judgement of CSFB status of support, 2G/3G Available judgement, network selection mode decision and switching and cell reselection and switching, and the embodiment of the present invention will utilize these judge modules to provide one method easily for processing USSD business under LTE.
Fig. 3 is the detailed process chart of realizing the method for USSD business under the LTE network of the embodiment of the present invention, as shown in Figure 3, specifically comprises following processing:
Step 301:UE initiates EPS+IMSI and combines and adhere in the time of Attach, if network support CSFB like this, UE just can be attached to LTE and non-LTE(UMTS/GSM simultaneously) network.
Step 302:UE obtains the support situation of network to CSFB according to Additional update result field in ATTACH ACCEPT message, if corresponding value is 1, represent network support CSFB, UE records this state, and each initiation combines to adhere to all needs to upgrade this state.
Step 303: user initiates USSD business.
Step 304:UE obtains the network type of current registration, and judges whether this network type is LTE network, if LTE network jumps to step 306, otherwise execution step 305.
Step 305: because 2G or 3G network are supported CS territory, directly carry out USSD business so UE does not need to do special processing.
Step 306: the LTE network obtaining when inquiry UE Attach, to CSFB status of support, if LTE network support CSFB supports step 307, otherwise jumps to step 308.
Step 307: because network support CSFB, switch and be linked into and complete USSD business in CS territory so UE only need to carry out corresponding community according to the standard agreement of CSFB.
Step 308: because network is not supported CSFB, will carry out CS business this time and must be switched to 2G or 3G network.The situation that comprises peripheral cell in the system message issuing due to network, from then on UE obtains around whether have 2G or 3G network in message, if there is no 2G/3G network around, execution step 309; If there is 2G/3G network around, execution step 310.
Step 309: have LTE network and do not support CSFB due to current, now cannot carry out USSD business, directly eject prompting and inform user.
Step 310: the current LTE network of prompting user is not supported USSD business, need to be switched to 2G or 3G network, and provide the option that is switched to 2G only or 3G Only, judge whether user switches, if the judgment is Yes, execution step 312, otherwise, execution step 311.
Step 311: finish USSD business.
Step 312: carry out the switching of network selection pattern and re-execute according to user's selection and look for net, once successfully register upper network, carry out Client-initiated USSD business, if user continues to carry out other USSD business, jump to step 303.
Fig. 4 is the flow chart that the network selection pattern of passing through detection UE of the embodiment of the present invention arranges to ensure preferentially to use when user initiates data service LTE network, as shown in Figure 4, specifically comprises following processing:
Step 401: detect that user initiates data service.
Step 402: whether be LTE Prefer or LTE Only, these two kinds of patterns can guarantee that UE preferentially selects LTE network if inquiring about current network selection pattern, thus higher speed can allow user initiate data service time, obtained.If not, jump to step 403; If wherein a kind of, perform step 404.
Step 403: because of the current speed that can affect user data service that arranges, so providing prompting informs that current network selection pattern arranges and can cause speed lower, suggestion is switched to LTE Prefer or LTE Only, and provide the option that is switched to LTE Prefer or LTE Only, and judge whether user switches, and if the judgment is Yes, execution step 405, otherwise, execution step 404.
Step 404: directly initiate data according to the network of current registration and connect.
Step 405: according to user's selection, automatically complete the switching of network selection pattern, again look for net and networking to operate.
In sum, by means of the technique scheme of the embodiment of the present invention, can save the great expense expenditure that the upgrading MSC of operator brings, ensure again normally carrying out of USSD business simultaneously; Make user enjoying in high speed that LTE brings experiences, can be convenient to use again USSD and carry out business handling.In addition, in the time that user initiates data service, arrange to point out user priority to select LTE network by sense terminals network selection pattern, thereby avoided because the network selection pattern that uses USSD business to cause is switched the impact bringing.
Device embodiment
According to embodiments of the invention, the device of realizing USSD business under a kind of LTE network is provided, Fig. 5 is the structural representation of realizing the device of USSD business under the LTE network of the embodiment of the present invention, as shown in Figure 5, comprise according to the device of realizing USSD business under the LTE network of the embodiment of the present invention: attachable module 50, processing module 52 and handover module 54, below be described in detail the modules of the embodiment of the present invention.
Attachable module 50, being used for is LTE mode of priority or LTE pattern in the network selection pattern of terminal, initiate Evolved Packet System EPS and international mobile subscriber identity IMSI and combine and adhere to, and obtain LTE network and whether support the situation information of circuit domain dropping CSFB according to the feedback information of LTE network;
Processing module 52, for in the time that terminal is initiated USSD business, obtain the network type of current registration, if network type is non-LTE network, directly carry out USSD business, if network type is LTE network, according to circumstances information determines whether LTE network supports CSFB, support if be defined as, carrying out corresponding community according to CSFB standard agreement switches and is linked into and in CS territory, carry out USSD business, do not support if be defined as, there is non-LTE network around determining time, the current LTE network of prompting user is not supported USSD business, need to be switched to non-LTE network,
Processing module 52 is specifically for the situation information of adhering to of sending to terminal according to LTE network obtaining LTE network in the additional renewal result field in acknowledge message and whether support circuit domain dropping CSFB.
Processing module 52 is further used for: if definite LTE network is not supported CSFB, while there is not non-LTE network, cannot carry out USSD business to user's prompting around determining.
It should be noted that, above-mentioned non-LTE network comprises: second generation 2G network and third generation 3G network.
Handover module 54, for according to user's operation, network selection pattern being switched to non-LTE network, and is linked into corresponding non-LTE network execution USSD business.
Handover module 54 is further used for: according to user's operation, network selection pattern is being switched to non-LTE network, and after being linked into corresponding non-LTE network execution USSD business, if detect that user initiates data service, whether inquire about current network selection pattern is LTE mode of priority or LTE pattern, if the judgment is Yes, direct executing data business; Otherwise prompting user is switched to LTE network, and according to user's operation, automatically network selection pattern is switched to LTE mode of priority or LTE pattern, and again look for net and networking operation.
In sum, by means of the technique scheme of the embodiment of the present invention, can save the great expense expenditure that the upgrading MSC of operator brings, ensure again normally carrying out of USSD business simultaneously; Make user enjoying in high speed that LTE brings experiences, can be convenient to use again USSD and carry out business handling.In addition, in the time that user initiates data service, arrange to point out user priority to select LTE network by sense terminals network selection pattern, thereby avoided because the network selection pattern that uses USSD business to cause is switched the impact bringing.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if these amendments of the present invention and within modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (10)
1. a method that realizes unstructured supplementary data traffic USSD business under Long Term Evolution LTE network, is characterized in that, comprising:
Be LTE mode of priority or LTE pattern in the network selection pattern of terminal, terminal is initiated Evolved Packet System EPS and international mobile subscriber identity IMSI and is combined and adhere to, and obtains LTE network and whether support the situation information of circuit domain dropping CSFB according to the feedback information of LTE network;
In the time that terminal is initiated USSD business, if the current network type of registering of terminal is LTE network, determine according to described situation information whether described LTE network supports CSFB, support if be defined as, carry out corresponding community according to CSFB standard agreement and switch and be linked in CS territory and carry out described USSD business, if be defined as not supporting, there is non-LTE network around determining time, the current LTE network of prompting user is not supported USSD business, need to be switched to non-LTE network;
Terminal is switched to non-LTE network according to user's operation by network selection pattern, and is linked into corresponding non-LTE network and carries out described USSD business.
2. the method for claim 1, is characterized in that, according to user's operation, network selection pattern is switched to non-LTE network, and is linked into after corresponding non-LTE network carries out described USSD business, and described method also comprises:
Terminal detects that user initiates data service;
Whether the current network selection pattern of terminal inquiry is described LTE mode of priority or described LTE pattern, if the judgment is Yes, directly carries out described data service;
Otherwise prompting user is switched to described LTE network, according to user's operation, automatically network selection pattern is switched to described LTE mode of priority or described LTE pattern, and again look for net and networking operation.
3. to go the method as described in 1 or 2 as right, it is characterized in that, obtain LTE network according to the feedback information of LTE network and whether support the situation information of circuit domain dropping CSFB specifically to comprise:
Adhering to of sending to described terminal according to LTE network obtain described LTE network in the additional renewal result field in acknowledge message and whether support the situation information of circuit domain dropping CSFB.
4. method as claimed in claim 1 or 2, is characterized in that, described method also comprises:
If terminal is determined described LTE network and do not supported CSFB, there is not non-LTE network around determining time, cannot carry out described USSD business to user's prompting.
5. method as claimed in claim 1 or 2, is characterized in that, described non-LTE network comprises: second generation 2G network and third generation 3G network.
6. a device of realizing unstructured supplementary data traffic USSD business under Long Term Evolution LTE network, is characterized in that, comprising:
Attachable module, being used for is LTE mode of priority or LTE pattern in the network selection pattern of terminal, initiate Evolved Packet System EPS and international mobile subscriber identity IMSI and combine and adhere to, and obtain LTE network and whether support the situation information of circuit domain dropping CSFB according to the feedback information of LTE network;
Processing module, for in the time that terminal is initiated USSD business, if the current network type of registering of terminal is LTE network, determine according to described situation information whether described LTE network supports CSFB, if be defined as supporting, carry out corresponding community according to CSFB standard agreement and switch and be linked into and in CS territory, carry out described USSD business, do not support if be defined as, there is non-LTE network around determining time, the current LTE network of prompting user is not supported USSD business, need to be switched to non-LTE network;
Handover module, for according to user's operation, network selection pattern being switched to non-LTE network, and is linked into corresponding non-LTE network and carries out described USSD business.
7. device as claimed in claim 6, is characterized in that, described handover module is further used for:
According to user's operation, network selection pattern is being switched to non-LTE network, and be linked into after corresponding non-LTE network carries out described USSD business, if detect that user initiates data service, whether inquire about current network selection pattern is described LTE mode of priority or described LTE pattern, if the judgment is Yes, directly carry out described data service; Otherwise prompting user is switched to described LTE network, and according to user's operation, automatically network selection pattern is switched to described LTE mode of priority or described LTE pattern, and again look for net and networking operation.
8. as right will be removed the device as described in 6 or 7, it is characterized in that, described processing module is specifically for the situation information of adhering to of sending to described terminal according to LTE network obtaining described LTE network in the additional renewal result field in acknowledge message and whether support circuit domain dropping CSFB.
9. the device as described in claim 6 or 7, is characterized in that, described processing module is further used for: if definite described LTE network is not supported CSFB, while there is not non-LTE network, cannot carry out described USSD business to user's prompting around determining.
10. the device as described in claim 6 or 7, is characterized in that, described non-LTE network comprises: second generation 2G network and third generation 3G network.
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| CN105813175A (en) * | 2014-12-31 | 2016-07-27 | 中国电信股份有限公司 | Terminal and terminal residing method |
| WO2016192220A1 (en) * | 2015-06-04 | 2016-12-08 | 中兴通讯股份有限公司 | Circuit switched fallback registration method and device, and computer storage medium |
| CN109219070A (en) * | 2017-06-29 | 2019-01-15 | 展讯通信（上海）有限公司 | Supplementary service configuration method, device and electronic equipment |
| CN110139358A (en) * | 2018-02-02 | 2019-08-16 | 北京三星通信技术研究有限公司 | Localization method, terminal device and location server |
| CN110912970A (en) * | 2019-11-04 | 2020-03-24 | 中国联合网络通信集团有限公司 | Cloud business card transmission method and device |
| CN113099510A (en) * | 2019-12-23 | 2021-07-09 | 海能达通信股份有限公司 | Network adaptation method and device, storage medium and electronic equipment |
| CN113422871A (en) * | 2021-06-22 | 2021-09-21 | 上海立可芯半导体科技有限公司 | Method for improving delay of mobile phone terminal initiating unstructured supplementary service data based on IMS network |
| CN114501559A (en) * | 2020-11-13 | 2022-05-13 | 北京小米移动软件有限公司 | Calling method and device |
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| CN109219070B (en) * | 2017-06-29 | 2022-04-29 | 展讯通信（上海）有限公司 | Supplementary service configuration method and device and electronic equipment |
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| CN110912970A (en) * | 2019-11-04 | 2020-03-24 | 中国联合网络通信集团有限公司 | Cloud business card transmission method and device |
| CN110912970B (en) * | 2019-11-04 | 2022-11-22 | 中国联合网络通信集团有限公司 | Cloud business card transmission method and device |
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| CN114501559A (en) * | 2020-11-13 | 2022-05-13 | 北京小米移动软件有限公司 | Calling method and device |
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Application publication date: 20141112 |