CN110392353B - Short message sending method and device - Google Patents
Short message sending method and device Download PDFInfo
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- CN110392353B CN110392353B CN201810344911.4A CN201810344911A CN110392353B CN 110392353 B CN110392353 B CN 110392353B CN 201810344911 A CN201810344911 A CN 201810344911A CN 110392353 B CN110392353 B CN 110392353B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/021—Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/12—Messaging; Mailboxes; Announcements
- H04W4/14—Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
- H04W52/143—Downlink power control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
- H04W52/283—Power depending on the position of the mobile
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
Abstract
The embodiment of the invention provides a short message sending method and device. The method comprises the following steps: adjusting the coverage range of the dual-mode small station to a preset coverage range; obtaining the IMSI of the user in the preset coverage range; matching the IMSI with a preset IMSI blacklist; and when the IMSI is not matched with a preset IMSI blacklist, notifying the fusion gateway of the IMSI, and sending the IMSI to a short message platform by the fusion gateway so that the short message platform sends a short message to the received IMSI according to a preset rule. The scheme provided by the invention avoids short message pushing for users who are not in the preset coverage range, also avoids the trouble for most of unnecessary users, greatly reduces the number of short messages and saves short message sending resources.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a short message sending method and apparatus.
Background
In recent years, telecommunication fraud cases are highly distributed, and only one county has tens of millions of telecommunication fraud cases each year. Operators hope to improve the awareness of common people in a fraud-proof short message reminding mode, prevent telecommunication fraud crimes and prevent personal property loss.
Therefore, the business customers of the operators hope to send the reminding short messages to the users entering the nearby range such as ATM, so as to carry out the short message anti-fraud reminding.
The existing mobile network mainly realizes indoor signal coverage through an outdoor macro station, an indoor distribution system and an indoor pico system, and also solves the problem of weak coverage in a small area by using a small number of 2G small stations and 4G small stations. The radius of the cell in the dense urban area is hundreds of meters on average; the multiple antenna points of the indoor distribution system and the indoor pico system belong to the same cell, and the coverage area is usually one or more floors. Therefore, the number of people who send the reminding short message is large, the reminding short message is unnecessary for most users, the user feels dislike to the reminding short message, the life of the user is disturbed, and the resource waste is caused by the large number of short messages.
Therefore, how to send the reminding short message to users in a small range (such as users in 10m around the bank ATM) is a problem to be solved urgently at present.
Disclosure of Invention
The embodiment of the invention provides a short message sending method and a short message sending device, and aims to solve the problem that in the prior art, the reminding short message pushing crowd is large in range, and troubles are caused to users who do not need the reminding short message pushing crowd.
In order to solve the above technical problem, an embodiment of the present invention provides a short message sending method, which is applied to a dual-mode small station, and includes: adjusting the coverage range of the dual-mode small station to a preset coverage range; obtaining the IMSI of the user in the preset coverage range; matching the IMSI with a preset IMSI blacklist; when the IMSI is not matched with a preset IMSI blacklist, notifying a fusion gateway of the IMSI, and sending the IMSI to a short message platform by the fusion gateway so that the short message platform sends a short message to the received IMSI according to a preset rule; wherein, the step of obtaining the IMSI of the user in the preset coverage area comprises: when the user terminal uses the 4G network, receiving an NAS message sent by the user terminal; caching the NAS message, and sending unencrypted identification request information to the user terminal according to the NAS message; receiving identification response information returned by a user according to the identification request information; and acquiring the IMSI of the user according to the identification response information.
Preferably, the step of adjusting the coverage of the dual-mode small station to the preset coverage comprises: adjusting the transmitting power of the dual-mode small station to a preset power so as to adjust the coverage range to a preset coverage range; the preset power is obtained through the following formula: the preset power-the receiving power of the reference signal of the macro station is intercepted by the empty port of the double-mode small station, namely shadow storage, the maximum allowable path loss covered by the double-mode small station, and the preset coverage range of the double-mode small station is 0.5dB/m multiplied.
Preferably, the dual-mode small station comprises: 2G/4G dual-mode small stations or 3G/4G dual-mode small stations.
In order to solve the above technical problem, an embodiment of the present invention further provides a short message sending apparatus, applied to a dual-mode small station, including: the preset coverage adjusting module is used for adjusting the coverage of the dual-mode small station to a preset coverage; the IMSI obtaining module is used for obtaining the IMSI of the user in the preset coverage range; the matching module is used for matching the IMSI with a preset IMSI blacklist; the IMSI sending module is used for notifying the IMSI to a fusion gateway when the IMSI is not matched with a preset IMSI blacklist, and sending the IMSI to a short message platform by the fusion gateway so that the short message platform sends a short message to the received IMSI according to a preset rule; wherein, the IMSI acquisition module includes: the NAS message receiving submodule is used for receiving NAS messages sent by the user terminal when the user terminal uses the 4G network; the identification request information sending submodule is used for caching the NAS information and sending unencrypted identification request information to the user terminal according to the NAS information; the identification response message receiving submodule is used for receiving identification response information returned by the user according to the identification request information; and the IMSI obtaining submodule is used for obtaining the IMSI of the user according to the identification response information.
Preferably, the preset coverage adjusting module includes: adjusting the transmitting power of the dual-mode small station to a preset power so as to adjust the coverage range to a preset coverage range; the preset power is obtained through the following formula:
the preset power-the receiving power of the reference signal of the macro station is intercepted by the empty port of the double-mode small station, namely shadow reserve, the maximum allowable path loss of the coverage range of the double-mode small station and 0.5dB/m multiplied by the preset coverage range of the double-mode small station.
Preferably, the dual-mode small station comprises: 2G/4G dual-mode small stations or 3G/4G dual-mode small stations.
Compared with the prior art, the invention has the following advantages:
in the embodiment of the invention, the coverage range of the dual-mode small station is adjusted to the preset coverage range, the IMSI of the user in the preset coverage range is obtained, the fusion gateway is informed of the IMSI, and the IMSI is sent to the short message platform by the fusion gateway, so that the short message platform sends the short message to the received IMSI according to the preset rule. In the embodiment of the invention, the coverage range of the double-mode small station is adjusted, so that the coverage range of short message pushing can be reduced to the preset coverage range, the short message pushing for users who are not in the preset coverage range is avoided, the trouble of most of unnecessary users is also avoided, the number of short messages is greatly reduced, and the short message sending resources are saved.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
Various advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a flowchart illustrating steps of a method for sending a short message according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating a reselection process obtaining an IMSI of a subscriber according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a handover subscriber IMSI acquisition procedure according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a short message sending apparatus according to a second embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1, a flowchart illustrating steps of a short message sending method according to a first embodiment of the present invention is shown, which may specifically include the following steps:
step 101: and adjusting the coverage range of the dual-mode small station to a preset coverage range.
In the embodiment of the invention, the dual-mode small station can comprise a 2G/4G dual-mode small station or a 3G/4G dual-mode small station. The embodiment of the invention realizes that the short message pushing is only carried out on the user terminal in the preset coverage range by reducing the coverage range of the dual-mode small station to the preset coverage range.
It will be appreciated that the preset coverage may be adjusted according to actual requirements, for example, in the vicinity of a bank ATM, the preset coverage of the dual-mode small station may be a range 10m from the ATM; and near the supermarket, the preset coverage range of the small double-mode station can be a range which is 50m away from the supermarket.
In practical applications, a person skilled in the art may set the preset coverage range of the dual-mode small station according to actual needs, which is not limited in the embodiment of the present invention.
In a preferred embodiment of the present invention, the step 101 may include:
substep S1: and adjusting the transmitting power of the dual-mode small station to a preset power so as to adjust the coverage range to a preset coverage range.
In the embodiment of the present invention, the coverage area of the dual-mode small station may be adjusted to be within a preset range by adjusting the transmission power of the dual-mode small station to a preset power, and specifically, the preset power may be obtained by the following formula (1):
preset power-double mode small station air interface listening macro station reference signal receiving power as shadow reserve + double mode small station covering maximum allowable path loss +0.5dB/m x double mode small station preset coverage range (1)
The following explains the respective parameters in the above formula (1) respectively:
1. the method comprises the steps that the dual-mode small station air interface monitors the reference signal receiving power of a macro station, namely the dual-mode small station is initially started and adjusted to be in a receiving state, and monitors the reference signal of the macro station, so that the measured reference signal receiving power is obtained;
2. the shadow reserve is a reserved shadow loss value when electric waves are blocked in the space transmission process;
3. the maximum allowable path loss of the small station coverage is path loss, and the loss generated by the propagation of electric waves in space is caused by the radiation diffusion of the transmitting power and the propagation characteristic of a channel, and reflects the change of the mean value of the received signal power in a macroscopic range.
The preset power of the dual-mode small station to be adjusted can be calculated through the formula (1), and the transmitting power of the dual-mode small station is adjusted to the preset power, so that the coverage range of the dual-mode small station can be adjusted to the preset coverage range.
After the coverage of the dual-mode cell is adjusted to the preset coverage, step 102 is entered.
Step 102: and obtaining the IMSI of the user in the preset coverage range.
The IMSI (international mobile subscriber identity number) is a flag for distinguishing a mobile subscriber, is stored in the SIM card, and can be used for distinguishing valid information of the mobile subscriber.
When the user enters the preset coverage range, the IMSI of the user terminal may be obtained in real time, and specifically, the IMSI of the user may be obtained by using the following preferred embodiment.
In a preferred embodiment of the present invention, the step 102 may include:
substep N1: when the user terminal uses the 4G network, receiving an NAS message sent by the user terminal;
substep N2: caching the NAS message, and sending unencrypted identification request information to a user terminal according to the NAS message;
substep N3: receiving identification response information returned by a user according to the identification request information;
substep N4: and acquiring the IMSI of the user according to the identification response information.
In the embodiment of the present invention, when the ue uses a 2G or 3G network, since NAS (Non-access stratum) messages are not encrypted, the Small Cell (low power radio access node) may obtain the IMSI number of the user through the Identity Request information and the Identity Response information included in the NAS message.
For 4G network, the NAS message is encrypted, so the dual-mode small station cannot analyze the NAS message without the key.
In the embodiment of the present invention, when the user terminal uses the 4G network, after the dual-mode cell receives a message that RRC (radio resource Control protocol) establishment is completed, after receiving an NAS message, the NAS message is cached to a preset location of the dual-mode cell, and the NAS message is not sent to the core network, the dual-mode cell directly sends an unencrypted Identity Request message to the user terminal, the user terminal replies an unencrypted Identity Response message to the dual-mode cell, and after the dual-mode cell responds to the Identity Response message sent by the user terminal, the Identity Response message may be parsed, so that the IMSI of the user terminal may be obtained, and then the cached NAS message is sent to the core network by the dual-mode cell for processing.
Of course, in practical applications, other schemes suitable for obtaining the IMSI of the user in the preset coverage area may be applied to the embodiment of the present invention, and the embodiment of the present invention is not limited thereto.
Of course, in the embodiment of the present invention, the IMSI of the user may also be obtained according to the state of the user terminal, where the state of the user terminal may include an IDLE state (RRC _ IDLE) and a connection state (RRC _ CONNECTED), where the IDLE state refers to that an RRC (Radio Resource Control protocol) connection is not established between the user terminal and the base station, and the connection state refers to that an RRC connection is established between the user terminal and the base station.
When the ue is in an idle state, a reselection procedure may be used to obtain the IMSI of the user, specifically: referring to fig. 2, a schematic diagram of acquiring an IMSI of a user in a reselection process according to an embodiment of the present invention is shown. After receiving the RRC establishment completion message, the dual-mode small station caches the NAS message to a preset position of the dual-mode small station without sending the NAS message to a core network, the dual-mode small station directly sends an unencrypted Identity Request message to the user terminal, the user terminal replies an unencrypted Identity Response message to the dual-mode small station, and after the dual-mode small station responds to the Identity Response message sent by the user terminal, the Identity Response message can be analyzed, so that the IMSI of the user terminal can be obtained, and then the dual-mode small station sends the cached NAS message to the core network for processing.
When the user terminal is in the connected state, the IMSI of the user may be acquired by using a handover user procedure. Specifically, the method comprises the following steps: referring to fig. 3, a schematic diagram of acquiring an IMSI in a handover procedure according to an embodiment of the present invention is shown.
For voice service, when the user terminal is switched from the macro station to the dual-mode small station, the user terminal will fall back to the 3G network or the 2G network, and the dual-mode small station can directly obtain the IMSI of the user through the Identity Request and the Identity Response contained in the NAS message.
For the data service, after the handover is completed, the user terminal is requested to be released, a redirection message is sent to the user terminal, and the user terminal is redirected to the 4G network of the cell where the dual-mode cell is located, so that the IMSI message of the user is acquired by using the handover procedure shown in fig. 3, which is not described in detail herein.
After obtaining the IMSI of the user, step 103 is entered.
Step 103: and matching the IMSI with a preset IMSI blacklist.
In the embodiment of the invention, an IMSI blacklist can be preset, the IMSI blacklist is set by an administrator on the accurate short message push server, bank workers and the like are mainly set as the blacklist, and the parameter settings are configured to the dual-mode small station.
After a user enters a coverage area of the dual-mode small station, the dual-mode small station acquires the IMSI of the user, if the IMSI of the user is in an IMSI blacklist, IMSI information is not sent to the fusion gateway, and if the IMSI of the user is not in the IMSI blacklist, IMSI information is sent to the fusion gateway. And the fusion gateway sends the IMSI information to a business and customer short message platform, and the business and customer platform pushes the short message to the IMSI.
Certainly, in the embodiment of the present invention, an IMSI white list may also be set, and when the IMSI of the user acquired by the dual-mode small station is in the IMSI white list, IMSI information is sent to the convergence gateway.
After matching the IMSI with the default IMSI blacklist, step 104 is entered.
Step 104: and when the IMSI is not matched with a preset IMSI blacklist, notifying the fusion gateway of the IMSI, and sending the IMSI to a short message platform by the fusion gateway so that the short message platform sends a short message to the received IMSI according to a preset rule.
In the embodiment of the present invention, the preset rule may be a short message content rule, for example, the sent short message may be english or chinese, the chinese short message supports at most 70 characters, or the english short message supports at most 140 characters, and so on. The preset rule may also be an interval time rule for sending short messages, sending short messages once every 5 hours, and the like.
It can be understood that the preset rule is set by the short message platform according to actual requirements, and the embodiment of the present invention is not limited thereto.
When the dual-mode small station obtains the IMSI of the user and determines that the IMSI of the user is not matched with the preset IMSI blacklist, the IMSI is notified to the convergence gateway, the current general registration message can be adopted to notify the convergence gateway of the IMSI of the user, and for a 4G network user, the access gateway cannot analyze the IMSI of the user due to encryption, so that the IMSI of the user is required to be sent to the gateway through a small station 2G module or a small station 3G module no matter a 2G user, a 3G user or a 4G user.
The 2G user or the 3G user can directly register, while the 4G user needs to analyze the IMSI by accessing the 4G module of the dual-mode small station and then transmit the IMSI of the user to the 2G module or the 3G module of the dual-mode small station, and the 2G module or the 3G module initiates a false registration process to inform the access gateway of the IMSI information of the user, so that the 4G user is informed to the convergence gateway.
Of course, in practical applications, those skilled in the art may also adopt other schemes for notifying the IMSI of the convergence gateway user, and the embodiment of the present invention is not limited thereto.
After the IMSI is notified to the convergence gateway, the convergence gateway sends the IMSI of the user to the short message platform, so that the short message platform sends the short message to the terminal where the received IMSI is located according to the preset rule, and accurate sending of the short message is achieved.
According to the short message sending method provided by the embodiment of the invention, the coverage range of the dual-mode small station is adjusted to the preset coverage range, the IMSI of the user in the preset coverage range is obtained, the IMSI is notified to the fusion gateway, and the fusion gateway sends the IMSI to the short message platform, so that the short message platform sends the short message to the received IMSI according to the preset rule. In the embodiment of the invention, the coverage range of the double-mode small station is adjusted, so that the coverage range of short message pushing can be reduced to the preset coverage range, the short message pushing for users who are not in the preset coverage range is avoided, the trouble of most of unnecessary users is avoided, the number of short messages is greatly reduced, and the short message sending resources are saved.
Example two
Fig. 4 is a schematic structural diagram illustrating a short message sending apparatus according to a second embodiment of the present invention; the method specifically comprises the following steps:
a preset coverage adjusting module 201, configured to adjust a coverage of the dual-mode small station to a preset coverage; an IMSI acquisition module 202, configured to acquire an IMSI of a user within the preset coverage area; the matching module 203 is configured to match the IMSI with a preset IMSI blacklist; the IMSI sending module 204 is configured to notify the fusion gateway of the IMSI, and send the IMSI to a short message platform by the fusion gateway, so that the short message platform sends a short message to the received IMSI according to a preset rule; the IMSI obtaining module 202 includes: the NAS message receiving submodule is used for receiving NAS messages sent by the user terminal when the user terminal uses the 4G network; the identification request information sending submodule is used for caching the NAS information and sending unencrypted identification request information to the user terminal according to the NAS information; the identification response message receiving submodule is used for receiving identification response information returned by the user according to the identification request information; and the IMSI obtaining submodule is used for obtaining the IMSI of the user according to the identification response information.
Preferably, the preset coverage adjusting module 201 includes: adjusting the transmitting power of the dual-mode small station to a preset power so as to adjust the coverage range to a preset coverage range; the preset power is obtained through the following formula: the preset power-the receiving power of the reference signal of the macro station is intercepted by the empty port of the double-mode small station, namely shadow reserve, the maximum allowable path loss of the coverage range of the double-mode small station and 0.5dB/m multiplied by the preset coverage range of the double-mode small station.
Preferably, the dual-mode small station comprises: 2G/4G dual-mode small stations or 3G/4G dual-mode small stations.
The data transmission device in the Hybrid mode provided in the embodiment of the present invention can implement each process implemented in the method embodiment of fig. 2, and is not described herein again to avoid repetition.
The short message sending device provided by the embodiment of the invention obtains the IMSI of the user in the preset coverage range by adjusting the coverage range of the dual-mode small station to the preset coverage range, informs the fusion gateway of the IMSI, and sends the IMSI to the short message platform by the fusion gateway, so that the short message platform sends the short message to the received IMSI according to the preset rule. In the embodiment of the invention, the coverage range of the double-mode small station is adjusted, so that the coverage range of short message pushing can be reduced to the preset coverage range, the short message pushing for users who are not in the preset coverage range is avoided, the trouble of most of unnecessary users is avoided, the number of short messages is greatly reduced, and the short message sending resources are saved.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
As will be appreciated by one of skill in the art, embodiments of the present application may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Embodiments of the present application are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present application have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the true scope of the embodiments of the application.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The above provides a short message sending method and a short message sending device, which are introduced in detail, and specific examples are applied in this text to explain the principle and implementation of the present application, and the description of the above embodiments is only used to help understand the method and core ideas of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (4)
1. A short message sending method is applied to a dual-mode small station and is characterized by comprising the following steps:
adjusting the coverage range of the dual-mode small station to a preset coverage range;
obtaining the IMSI of the user in the preset coverage range;
matching the IMSI with a preset IMSI blacklist;
when the IMSI is not matched with a preset IMSI blacklist, notifying a fusion gateway of the IMSI, and sending the IMSI to a short message platform by the fusion gateway so that the short message platform sends a short message to the received IMSI according to a preset rule;
wherein, the step of obtaining the IMSI of the user in the preset coverage area comprises: when the user terminal uses the 4G network, receiving an NAS message sent by the user terminal; caching the NAS message, and sending unencrypted identification request information to the user terminal according to the NAS message; receiving identification response information returned by a user according to the identification request information; acquiring the IMSI of the user according to the identification response information;
the dual-mode small station comprises: 2G/4G dual-mode small stations or 3G/4G dual-mode small stations;
the step of notifying the convergence gateway of the IMSI comprises the following steps: for 4G network users, after the 4G module of the dual-mode small station analyzes the IMSI of the user, the IMSI of the user is sent to the 2G module of the dual-mode small station or the 3G module of the dual-mode small station, the 2G module or the 3G module initiates a false registration process, and the IMSI information of the 4G network users is notified to the convergence gateway.
2. The method of claim 1, wherein the step of adjusting the coverage of the dual-mode cell to the predetermined coverage comprises:
adjusting the transmitting power of the dual-mode small station to a preset power so as to adjust the coverage range to a preset coverage range;
the preset power is obtained through the following formula:
the preset power-the receiving power of the reference signal of the macro station is intercepted by the empty port of the double-mode small station, namely shadow storage, the maximum allowable path loss covered by the double-mode small station, and the preset coverage range of the double-mode small station is 0.5dB/m multiplied.
3. A short message sending device is applied to a dual-mode small station and is characterized by comprising:
the preset coverage adjusting module is used for adjusting the coverage of the dual-mode small station to a preset coverage;
the IMSI obtaining module is used for obtaining the IMSI of the user in the preset coverage range;
the matching module is used for matching the IMSI with a preset IMSI blacklist;
the IMSI sending module is used for notifying the IMSI to a fusion gateway when the IMSI is not matched with a preset IMSI blacklist, and sending the IMSI to a short message platform by the fusion gateway so that the short message platform sends a short message to the received IMSI according to a preset rule;
wherein, the IMSI acquisition module includes: the NAS message receiving submodule is used for receiving NAS messages sent by the user terminal when the user terminal uses the 4G network; the identification request information sending submodule is used for caching the NAS information and sending unencrypted identification request information to the user terminal according to the NAS information; the identification response message receiving submodule is used for receiving identification response information returned by the user according to the identification request information; the IMSI obtaining submodule is used for obtaining the IMSI of the user according to the identification response information;
the dual-mode small station comprises: 2G/4G dual-mode small stations or 3G/4G dual-mode small stations;
the step of notifying the convergence gateway of the IMSI comprises the following steps: for 4G network users, after the 4G module of the dual-mode small station analyzes the IMSI of the user, the IMSI of the user is sent to the 2G module of the dual-mode small station or the 3G module of the dual-mode small station, the 2G module or the 3G module initiates a false registration process, and the IMSI information of the 4G network users is notified to the convergence gateway.
4. The apparatus of claim 3, wherein the preset coverage adjustment module comprises:
adjusting the transmitting power of the dual-mode small station to a preset power so as to adjust the coverage range to a preset coverage range;
the preset power is obtained through the following formula:
the preset power-the receiving power of the reference signal of the macro station is intercepted by the empty port of the double-mode small station, namely shadow reserve, the maximum allowable path loss of the coverage range of the double-mode small station and 0.5dB/m multiplied by the preset coverage range of the double-mode small station.
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