CN103379455B - A kind of short message filter method, base station and system - Google Patents
A kind of short message filter method, base station and system Download PDFInfo
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- CN103379455B CN103379455B CN201210118944.XA CN201210118944A CN103379455B CN 103379455 B CN103379455 B CN 103379455B CN 201210118944 A CN201210118944 A CN 201210118944A CN 103379455 B CN103379455 B CN 103379455B
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Abstract
The invention discloses a kind of short message filter method, base station and system, methods described includes：Base station side obtains default filtration time segment information and filter area information；When filtration time then, base station side establishes request message acquisition according to the business that base station controller issues can distinguish short message service accordingly in the business information point of other business, and transmitting short message by mobile terminal in idle condition or talking state of the control refusal into filter area accordingly.Pass through the present invention, burst can fast and effectively be tackled, the extensive of a large amount of, zonal illegal short message is disseminated, the participation of other roles such as user, short message service center is not needed, not only reduces the waste of Base station channel resources, also mitigates the load of Short Message Service Center.
Description
Technical field
The present invention relates to mobile communication technology field, in particular to a kind of short message filter method, base station and is
System.
Background technology
Short message be by global system for mobile communications (Global System for Mobile communications,
Abbreviation GSM) network transmission finite length text message.Short message service is a basic telecommunication service, is gsm system
It is supplied to a kind of communication mode for being different from voice transfer of user.
Popularized with the development of wireless communication technique, point-to-point short message is as a kind of conveniently liaison side
Formula, the development advanced by leaps and bounds is achieved in recent years, its customer volume is growing.
But in actual application, some criminals or equipment vendor rival often utilize short message
The facility of business, the features such as popularization and customer volume are big, carry out some illegal activities.Such as：Some criminals utilize short message
Function is mass-sended, can be propagated on a large scale in the short time various containing invasion of privacy, the social normal order of interference and harm
The illegal short message of social stability；Some equipment vendors utilize the business characteristic of short message, are happened suddenly within some short time period
A large amount of interference short messages, to carry out malicious attack etc. to the network of rival.
For mobile subscriber, not only its normal life of severe jamming of these illegal short messages, and jeopardize individual
Privacy；For society, illegal short message has become illegal party, the publicity contact means of series connection parade recently, adds
The destabilizing factor of society；For equipment vendor and operator, spreading unchecked for illegal short message causes the device resources such as base station
Huge waste, in some instances it may even be possible to the paralysis of network can be caused, have a strong impact on the progress of user's regular traffic therein, serious blow and
Compromise the strength and image of equipment vendor and operator.So currently can fast and effectively it be tackled there is an urgent need for one kind prominent
The method that hair, a large amount of, zonal illegal short message disseminate extensively.
Tackling the method that this illegal short message disseminates extensively at present mainly has two kinds：
One kind is to set filtering rule passively to filter some illegal short messages by terminal user；
Another kind is exactly that the content of short message of transmitting-receiving is parsed by base station or Short Message Service Center, further according to setting
The filtering rule put, it is compared to filter some illegal short messages with the content parsed.
The common feature that above two filters illegal SMS method is to be required to set filtering rule in advance, then
The content of further parsing short message, and the situation for judging whether to meet filtering rule according to analysis result are needed, with this
To intercept illegal short message.But above method presence needs user to participate in, setting filtering rule complexity is dumb, can not be complete
Filtering, can not release busy in time resource the problem of.
The content of the invention
In view of this, it is an object of the invention to provide a kind of short message filter method, base station and system, by this hair
Bright, in the filter process of short message, user needs not participate in, filtering rule simple possible, can be opened according to period, function
Gate-controlled switch etc. flexibly realizes that short message receiving harvests full filtering with reference to actual demand, and the present invention is convenient and swift, can successfully manage
Burst, the demand disseminated extensively of a large amount of, zonal illegal short message, and can release busy in time radio channel resource.
In order to reach the purpose of the present invention, the present invention uses following technical scheme：
A kind of short message filter method, including：
A, base station side obtains default filtration time segment information and filter area information；
B, when filtration time then, the business that base station side is issued according to base station controller establishes that request message obtains being capable of evidence
This distinguishes short message service in the business information point of other business, and control refusal is in idle shape into filter area accordingly
The transmitting short message by mobile terminal of state or talking state.
Preferably, in the step A, base station side obtain default filtration time segment information and filter area information by
Base station controller issues.
Preferably, when performing step B, when filtration time then, also judge that the short message receiving of base station side harvests full filtering
Whether switch is opened, if opening, base station side establishes request message acquisition according to the business that base station controller issues can be accordingly
Short message service is distinguished in the business information point of other business, and control refusal is in idle condition into filter area accordingly
Or the transmitting short message by mobile terminal of talking state.
Preferably, in stepb, the business that base station side foundation base station controller issues establishes request message acquisition being capable of evidence
This distinguishes short message service in the business information point of other business, and control refusal is in idle shape into filter area accordingly
The method of the transmitting short message by mobile terminal of state includes：
Base station side establishes request message acquisition according to the business that base station controller issues can distinguish short message service accordingly
In the business information point of other business, wherein, the business information point is that the L3 contents that business establishes request message carrying are empty
And Service Access Point Identifier SAPI is equal to 3 information point；
Base station side sends release channel request to base station controller according to the business information point, to cause base station controller
The special control SDCCH channels of independence that release had previously distributed for the mobile terminal progress short message reception in filter area.
Preferably, in stepb, the business that base station side foundation base station controller issues establishes request message acquisition being capable of evidence
This distinguishes short message service in the business information point of other business, and control refusal is in call shape into filter area accordingly
The method of the transmitting short message by mobile terminal of state includes：
Base station side establishes request message acquisition according to the business that base station controller issues can distinguish short message service accordingly
In the business information point of other business；
When the business information point is that the L3 contents that business establishes request message carrying are empty and Service Access Point Identifier
When SAPI is equal to 3 information point, base station side does not take any action, to block the movement in talking state in filter area
Terminal carries out the process of the link setup of layer two with base station side to receive short message, so that should the mobile terminal in talking state
Short message can not be received.
A kind of base station, including：
Acquisition module, for obtaining default filtration time segment information and filter area information；
Processing module, for when filtration time then, the business issued according to base station controller establishes request message acquisition
Short message service can be distinguished accordingly in the business information point of other business, and control refusal being in into filter area accordingly
The transmitting short message by mobile terminal of idle condition or talking state.
Preferably, the default filtration time segment information and filter area information that acquisition module obtains are by under base station controller
Hair.
Preferably, the base station also includes：
Short message receiving harvests full filter switch, and full filtering function is harvested for being turned on and off short message receiving；
When filtration time then, the processing module also judges that the short message receiving harvests whether full filter switch opens,
If opening, short message service can be distinguished accordingly in other by establishing request message acquisition according to the business that base station controller issues
The business information point of business, and mobile terminal in idle condition or talking state of the control refusal into filter area accordingly
Send short message.
Preferably, the processing module establish that request message obtains according to the business that base station controller issues being capable of area accordingly
Point short message service in the business information point of other business, and accordingly control refusal into filter area in idle condition
The method of transmitting short message by mobile terminal includes：
Short message service can be distinguished accordingly in other by establishing request message acquisition according to the business that base station controller issues
The business information point of business, wherein, the business information point is that the L3 contents that business establishes request message carrying are empty and business
Access point identity SAPI is equal to 3 information point；
Release channel request is sent to base station controller according to the business information point, to cause base station controller release first
The preceding mobile terminal in filter area carries out the special control SDCCH channels of independence that short message reception distributes.
Preferably, the processing module establish that request message obtains according to the business that base station controller issues being capable of area accordingly
Point short message service in the business information point of other business, and accordingly control refusal into filter area in talking state
The method of transmitting short message by mobile terminal includes：
Short message service can be distinguished accordingly in other by establishing request message acquisition according to the business that base station controller issues
The business information point of business；
When the business information point is that the L3 contents that business establishes request message carrying are empty and Service Access Point Identifier
When SAPI is equal to 3 information point, the processing module control base station side does not take any action, to block the place in filter area
The process of the link setup of layer two is carried out with base station side to receive short message in the mobile terminal of talking state, so that should be in logical
The mobile terminal of speech phase can not receive short message.
A kind of short message filter system, including base station controller, it also includes base station as described above, wherein, the base
Station includes：
Acquisition module, for obtaining default filtration time segment information and filter area information；
Processing module, for when filtration time then, the business issued according to base station controller establishes request message acquisition
Short message service can be distinguished accordingly in the business information point of other business, and control refusal being in into filter area accordingly
The transmitting short message by mobile terminal of idle condition or talking state.
By the technical scheme of the invention described above can be seen that prior art exist need user participate in, set filtering rule
It is then complicated, can not filter completely, can not release busy in time resource the problems such as.And by the present invention, opening short message receiving
After harvesting full filter switch, by base station within the period and regional extent of setting, by the various industry for judging short message reception
A little crucial signalling point in business flow is with regard to that can be automatically performed the complete filtering received to short message, the spirit of this method simple and fast
It is living, it can fast and effectively tackle burst, the extensive of a large amount of, zonal illegal short message is disseminated, it is not necessary to user, short message
The participation of other roles such as center, the waste of Base station channel resources is not only reduced, also mitigate the negative of Short Message Service Center
Lotus.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the present invention, this hair
Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is short message filter method schematic flow sheet provided in an embodiment of the present invention；
Fig. 2 is short message filter system structural representation provided in an embodiment of the present invention；
Fig. 3 is that point-to-point short message receiving provided in an embodiment of the present invention harvests the default phase of base station controller in full filter process
The process chart of related parameter；
Fig. 4 is that point-to-point short message receiving provided in an embodiment of the present invention harvests full filter process workflow schematic diagram；
Fig. 5 is that the mobile terminal (such as mobile phone) provided in an embodiment of the present invention in idle condition carries out short message reception
The schematic flow sheet of complete filter operation；
Fig. 6 is that the mobile phone of talking state provided in an embodiment of the present invention carries out the flow that short message receiving harvests full filter process
Schematic diagram.
Embodiment
In order that technical problems, technical solutions and advantages to be solved are clearer, clear, tie below
Drawings and examples are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
As shown in figure 1, the embodiments of the invention provide a kind of short message filter method, comprise the following specific steps that：
S101, base station side obtain default filtration time segment information and filter area information；
S102, when filtration time then, the business that base station side is issued according to base station controller establishes request message and obtains energy
It is enough to distinguish short message service accordingly in the business information point of other business, and control refusal is in sky into filter area accordingly
The transmitting short message by mobile terminal of not busy state or talking state.
Under preferred embodiment, in the step S101, default filtration time segment information and mistake that base station side obtains
Filter range information is issued by base station controller.In actual application, carried out to be flexibly met in some period and region
Short message receiving harvests the requirement filtered entirely, and action time and the filter area of filtration time section can be carried out by base station controller
Both sides is set, wherein, filter area is preferred plan setting using base station cell level, because so can be with closest to ground
Minimum Area in reason carries out the short message in region for unit and filtered completely, to reduce to the normal short message service in other regions
Influence.
As shown in figure 3, it is that point-to-point short message receiving provided in an embodiment of the present invention harvests base station control in full filter process
Device presets the process chart of relevant parameter, and it comprises the following steps：
1) base station controller issues short message receiving and harvests full filtration parameter (filtration time segment information and filter area information)；
2) base station side judges whether these parameters are legal, if legal, stores these parameters；If illegal, base station side
Feedback parameter issues incorrect alarm to base station controller, and does not store these parameters.
Under preferred embodiment, when performing step S102, when filtration time then, also judge the short message receiving of base station side
Harvest whether full filter switch opens, if opening, base station side is established request message according to the business that base station controller issues and obtained
Short message service can be distinguished accordingly in the business information point of other business by taking, and place of the control refusal into filter area accordingly
In the transmitting short message by mobile terminal of idle condition or talking state；If being not turned on, base station side is not performed to filter area
Interior mobile terminal carries out the complete filter operation of short message.
As shown in figure 4, it, which is point-to-point short message receiving provided in an embodiment of the present invention, harvests full filter process workflow
Schematic diagram, it comprises the following steps：
1) short message receives business and produced；
2) judge that short message receiving harvests whether full filter switch is opened, and whether the storage of filtration time section parameter is correct
If so, then go to step 3), if it is not, then going to step 4)；
3) base station side performs filtration treatment to the descending short message of the mobile terminal in idle condition or talking state.
4) perform short message and normally receive flow.
The embodiment of the present invention is the related signaling content that base station side receives according to gsm protocol short message, waiting to mobile phone
The short message of receipts carries out period and a kind of selective method filtered completely in region, in actual application, base station side
Corresponding carry out short message can be carried out according to the mobile terminal in idle condition and talking state in filter area
Complete filter operation, such as：
Under preferred embodiment, in step s 102, base station side is established request according to the business that base station controller issues and disappeared
Breath, which obtains, can distinguish short message service accordingly in the business information point of other business, and control is refused into filter area accordingly
The method of the transmitting short message by mobile terminal in idle condition include：
The business that S1021, base station side foundation base station controller issue, which establishes request message acquisition, can distinguish short disappear accordingly
Breath business in the business information point of other business, wherein, the business information point be business establish request message carrying L3 in
Hold for information points of the empty and Service Access Point Identifier SAPI equal to 3；
S1022, base station side send release channel request to base station controller according to the business information point, to cause base station
The special control SDCCH letters of independence that controller release had previously distributed for the mobile terminal progress short message reception in filter area
Road.
Preferably, in step s 102, base station side establishes request message according to the business that base station controller issues and obtains energy
It is enough to distinguish short message service accordingly in the business information point of other business, and control refusal is in logical into filter area accordingly
The method of the transmitting short message by mobile terminal of speech phase includes：
The business that S1023, base station side foundation base station controller issue, which establishes request message acquisition, can distinguish short disappear accordingly
Breath business is in the business information point of other business；
S1024, when the business information point is that the L3 contents that business establishes request message carrying are empty and Service Access point
When identifying SAPI and being equal to 3 information point, base station side does not take any action, with block in filter area in talking state
Mobile terminal carries out the process of the link setup of layer two with base station side to receive short message, so that should the movement in talking state
Terminal can not receive short message.
With reference to figure 5, Fig. 5 is that mobile terminal (such as mobile phone) progress provided in an embodiment of the present invention in idle condition is short
The schematic flow sheet of the complete filter operation of message sink.Parameter (filtration time segment information and the mistake issued according to base station controller
Filter range information), and the mobile phone in idle condition, excavate the information point that can distinguish short message and other business, foundation
These information points, mobile phone of the control in Idle state can not receive short message, specifically, have the following steps：
1) side of base station controller issues filtration time segment information and filter area information parameter；
2) base station side receives and stores the 1 filtration time segment information and filter area information；
3) base station side judges that short message receiving harvests whether full filter switch is opened, and whether reaches the filtration time of setting
Section, if current time is unsatisfactory for the filtration time section set, base station does not perform short message receiving and harvests full filtering function.If short disappear
Breath receives complete filter switch and opened, and current time meets the filtration time section of setting, then goes to step 4)；
4) mobile phone that Idle state is in filter area is excavated, and obtains the business that can distinguish short message and other business
Information point.It is sky, SAPI (Service Access that the business that base station controller issues, which establishes the L3 contents carried in request message,
Point Identifier, Service Access Point Identifier)=3 be excavation business information point.Pass through the business information point, base station
Lateral base station controller initiative release resource, and then prevent the mobile phone of Idle state from receiving any short message.
In this step, base station side receives the L3 contents that base station controller issues and asked for empty, SAPI=3 business foundation
After seeking message, instruction message is discharged by sending, the release of signals base controller previously carries out short message reception and distributed
SDCCH channels, timely release busy resource, prevent the receive process of short message.
With reference to figure 6, Fig. 6 be talking state provided in an embodiment of the present invention mobile phone carry out short message receiving harvest it is complete filtered
The schematic flow sheet of journey.The parameter that base station side issues according to base station controller, and the mobile phone in talking state, excavation can
Short message and the business information point of other business are distinguished, according to these business information points, call shape is in control filter area
The mobile phone of state can not receive short message, specifically, have the following steps：
1) side of base station controller issues filtration time segment information and filter area information parameter；
2) base station side receives and stores the filtration time segment information and filter area information parameter；
3) base station side judges that short message receiving harvests whether full filter switch is opened, and whether reaches the filtration time of setting
Section, if current time is unsatisfactory for the filtration time section set, base station does not perform short message receiving and harvests full filtering function；If switch
Open, and current time meets the filtration time section of setting, then goes to step 4)；
4) base station side excavates the mobile phone that talking state is in filter area, and acquisition can distinguish short message and other
The business information point of business.The business that base station controller issues establishes the L3 contents of request message carrying to be empty, and SAPI=3 is
The business information point of excavation.By the business information point, base station side actively blocks ensuing short message to receive flow, and then hinders
Only the mobile phone of conversation state receives any short message.
In this step, base station side receives the L3 contents that base station controller issues and asked for empty, SAPI=3 business foundation
After seeking message, without any action, layer is carried out with base station side to receive short message so as to block the mobile phone in talking state
The process of two link setups, and then cause the mobile phone of talking state to receive any short message.
As shown in Fig. 2 the embodiment of the present invention additionally provides a kind of base station 20, it includes：
Acquisition module 201, for obtaining default filtration time segment information and filter area information；
Processing module 203, for when filtration time then, the business issued according to base station controller 10 establishes request message
Acquisition can distinguish short message service accordingly in the business information point of other business, and control is refused into filter area accordingly
Short message is sent in the mobile terminal 30 of idle condition or talking state.
Under preferred embodiment, acquisition module 201 obtain default filtration time segment information and filter area information by
Base station controller 10 issues.
Under preferred embodiment, the base station 20 also includes：
Short message receiving harvests full filter switch 202, and full filtering function is harvested for being turned on and off short message receiving；
When filtration time then, the processing module 203 also judges whether the short message receiving harvests full filter switch 202
Open, if opening, short message industry can be distinguished accordingly by establishing request message acquisition according to the business that base station controller 10 issues
Be engaged in the business information point of other business, and accordingly control refusal into filter area in idle condition or talking state
Mobile terminal 30 sends short message.
Under a kind of embodiment, the processing module 203 establishes request message according to the business that base station controller 10 issues
Acquisition can distinguish short message service accordingly in the business information point of other business, and control is refused into filter area accordingly
The method that mobile terminal 30 in idle condition sends short message includes：
1) business issued according to base station controller 10 establish request message obtain can distinguish accordingly short message service in
The business information point of other business, wherein, the business information point be the L3 contents that business establishes request message carrying be it is empty and
Service Access Point Identifier SAPI is equal to 3 information point；
2) release channel request is sent to base station controller 10 according to the business information point, to cause base station controller 10
The special control SDCCH channels of independence that release had previously distributed for the progress short message reception of mobile terminal 30 in filter area.
Under another preferred embodiment, the processing module 203 is established according to the business that base station controller 10 issues please
Short message service can be distinguished accordingly in the business information point of other business by asking message to obtain, and control is refused to filtering model accordingly
The method that the mobile terminal 30 in talking state in enclosing sends short message includes：
1) business issued according to base station controller 10 establish request message obtain can distinguish accordingly short message service in
The business information point of other business；
2) when the business information point is that the L3 contents that business establishes request message carrying are empty and Service Access Point Identifier
When SAPI is equal to 3 information point, the control base station side of processing module 203 does not take any action, to block in filter area
The mobile terminal 30 in talking state for receive short message and with base station side carry out the link setup of layer two process so that should
Mobile terminal 30 in talking state can not receive short message.
Correspondingly, the embodiment of the present invention additionally provides a kind of short message filter system, including base station controller 10, and it is also wrapped
Base station 20 as described above is included, with reference to figure 2, wherein, the base station 20 includes：
Acquisition module 201, for obtaining default filtration time segment information and filter area information；
Processing module 203, for when filtration time then, the business issued according to base station controller 10 establishes request message
Acquisition can distinguish short message service accordingly in the business information point of other business, and control is refused into filter area accordingly
Short message is sent in the mobile terminal 30 of idle condition or talking state.
Detailed description about the base station 20 refers to described above, does not do repeated description to this herein.
A preferred embodiment of the present invention has shown and described in described above, but as previously described, it should be understood that the present invention
Be not limited to form disclosed herein, be not to be taken as the exclusion to other embodiment, and available for various other combinations,
Modification and environment, and above-mentioned teaching or the technology or knowledge of association area can be passed through in the scope of the invention is set forth herein
It is modified., then all should be in this hair and the change and change that those skilled in the art are carried out do not depart from the spirit and scope of the present invention
In the protection domain of bright appended claims.
Claims (7)
- A kind of 1. short message filter method, it is characterised in that including：A, base station side obtains default filtration time segment information and filter area information；B, when filtration time then, the business that base station side is issued according to base station controller establishes that request message obtains being capable of area accordingly Point short message service in the business information point of other business, and accordingly control refusal into filter area in idle condition or The transmitting short message by mobile terminal of talking state；Characterized in that, in stepb, base station side establishes request message acquisition according to the business that base station controller issues being capable of evidence This distinguishes short message service in the business information point of other business, and control refusal is in idle shape into filter area accordingly The method of the transmitting short message by mobile terminal of state includes：Base station side establishes request message acquisition according to the business that base station controller issues can distinguish short message service accordingly in it The business information point of its business, wherein, the business information point is that the L3 contents that business establishes request message carrying are empty and industry Business access point identity SAPI is equal to 3 information point；Base station side sends release channel request to base station controller according to the business information point, to cause base station controller to discharge The special control SDCCH channels of independence previously distributed for the mobile terminal progress short message reception in filter area；Or base station side does not take any action, to block the mobile terminal in talking state in filter area as reception Short message and the process that the link setup of layer two is carried out with base station side, so that should can not be received in mobile terminal of talking state Short message.
- 2. short message filter method as claimed in claim 1, it is characterised in that in the step A, base station side obtains pre- If filtration time segment information and filter area information issued by base station controller.
- 3. short message filter method as claimed in claim 1, it is characterised in that when performing step B, when filtration time arrives When, also judge that the short message receiving of base station side harvests whether full filter switch opens, if opening, base station side is according to base station controller The business issued, which establishes request message acquisition, can distinguish short message service accordingly in the business information point of other business, and accordingly Transmitting short message by mobile terminal in idle condition or talking state of the control refusal into filter area.
- A kind of 4. base station, it is characterised in that including：Acquisition module, for obtaining default filtration time segment information and filter area information；Processing module, for when filtration time then, the business issued according to base station controller establishes that request message obtains can Short message service is distinguished accordingly in the business information point of other business, and control refusal is in the free time into filter area accordingly The transmitting short message by mobile terminal of state or talking state；The processing module establishes request message acquisition according to the business that base station controller issues can distinguish short message industry accordingly It is engaged in the business information point of other business, and mobile terminal in idle condition hair of the control refusal into filter area accordingly Sending the method for short message includes：Short message service can be distinguished accordingly in other business by establishing request message acquisition according to the business that base station controller issues Business information point, wherein, the business information point is that the L3 contents that business establishes request message carrying are empty and service access Point identification SAPI is equal to 3 information point；Release channel request is sent to base station controller according to the business information point, to cause base station controller release to be previously The special control SDCCH channels of independence that mobile terminal in filter area carries out short message reception and distributed；Or the processing module control base station side does not take any action, talking state is in block in filter area Mobile terminal for receive short message and with base station side carry out the link setup of layer two process so that should in talking state shifting Dynamic terminal can not receive short message.
- 5. base station as claimed in claim 4, it is characterised in that the default filtration time segment information and mistake that acquisition module obtains Filter range information is issued by base station controller.
- 6. base station as claimed in claim 4, it is characterised in that also include：Short message receiving harvests full filter switch, and full filtering function is harvested for being turned on and off short message receiving；When filtration time then, the processing module also judges that the short message receiving harvests whether full filter switch opens, if opening Open, then short message service can be distinguished accordingly in other business by establishing request message acquisition according to the business that base station controller issues Business information point, and mobile terminal in idle condition or talking state of the control refusal into filter area is sent accordingly Short message.
- 7. a kind of short message filter system, including base station controller, it is characterised in that also include such as any power of claim 4-6 Profit requires described base station.
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| CN1750668A (en) * | 2004-09-14 | 2006-03-22 | 中兴通讯股份有限公司 | Method for filtering short messages |
| KR20060071241A (en) * | 2004-12-21 | 2006-06-26 | 주식회사 팬택앤큐리텔 | Apparatus and method for filtering sms and wireless communication terminal and method using it |
| CN101711016A (en) * | 2009-11-20 | 2010-05-19 | 中兴通讯股份有限公司 | Method, base station and system for filtering short messages |
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| CN103379455A (en) | 2013-10-30 |
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