CN106804045B - Forwarding control method of broadcast message and access equipment - Google Patents
Forwarding control method of broadcast message and access equipment Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/08—Load balancing or load distribution
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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
- H04W52/02—Power saving arrangements
- H04W52/0203—Power saving arrangements in the radio access network or backbone network of wireless communication networks
- H04W52/0206—Power saving arrangements in the radio access network or backbone network of wireless communication networks in access points, e.g. base stations
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
A broadcast message forwarding control method and access device; the method comprises the following steps: a modem of access equipment acquires target data, modulates the target data and then sends the modulated target data to a radio frequency module of the access equipment; the radio frequency module sends a filtering request instruction to the modem under the condition that the sending mode of the target data is determined to be broadcast; the modem carries out filtering analysis on the target data before modulation, and sends a filter confirmation instruction to the radio frequency module under the condition of determining that the target data needs to be filtered; and after receiving the confirmation filtering instruction, the radio frequency module discards the target data. The CPU is not required to be awakened and the interruption processing is not required to be executed due to the requirement of broadcast message filtering, so that on one hand, the load balance is realized, on the other hand, the interruption of the CPU is reduced, the load of the CPU can be reduced, and the efficiency of the whole access equipment system is improved.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method for controlling forwarding of a broadcast message and an access device.
Background
Broadcast is defined as the dissemination of public land using radio or television signals. The method is a message sending mode, a broadcast sending mode message has no fixed receiver, and the broadcast message can be received only in the coverage range of a broadcast source. More common are as follows: and (5) broadcasting news.
Broadcasting is due to its particular advantages: the method does not need to establish a special communication link with the terminal equipment, and has the advantages of wide coverage range, lower cost and the like, and is widely applied. There are many other applications in the field of communication technology besides news broadcasting.
But broadcast messages are increasingly becoming abused, for example: broadcast viruses, broadcast advertisements, and the like. If the access equipment filters the messages, unnecessary data can be reduced from being sent, and the situation that the user is disturbed is reduced.
At present, message filtering is implemented by running relevant antivirus software or filtering function software in a Central Processing Unit (CPU), where the CPU is an ultra-large scale integrated circuit and is an operation Core (Core) and a Control Core (Control Unit) of a hardware device. Its function is mainly to interpret computer instructions and to process data in computer software.
The cpu mainly includes an Arithmetic Unit (ALU), a Cache memory (Cache), and a Data (Data), control and status Bus (Bus) for implementing the connection between them. It is called three core components of electronic equipment together with internal Memory (Memory) and input/output (I/O) devices.
The working process of the CPU is as follows: instructions are fetched from memory or cache, placed in an instruction register, and decoded. It decomposes the instruction into a series of micro-operations, then sends out various control commands, executes the micro-operation series, thereby completing the execution of one instruction. An instruction is a basic command that a computer specifies the type and operands of an execution operation. An instruction is composed of one or more bytes including an opcode field, one or more fields for operand addresses, and some status words and signature codes that characterize the state of the machine. Some instructions also include the operands themselves directly.
Therefore, in the electronic device, all the functional modules, for example: the device comprises a modem (modem), a wireless fidelity (WIFI), a power module, a video module and other functional modules; the tasks are allocated by the CPU, and the execution processing of the functional modules can initiate CPU interruption, so that the load of the CPU is large, and the efficiency of the whole system is low.
Disclosure of Invention
The embodiment of the invention provides a forwarding control method of a broadcast message and access equipment. The method is used for reducing the load of the CPU and improving the efficiency of the whole access equipment system.
In one aspect, an embodiment of the present invention provides a method for controlling forwarding of a broadcast message, including:
a modem of access equipment acquires target data, modulates the target data and then sends the modulated target data to a radio frequency module of the access equipment;
the radio frequency module sends a filtering request instruction to the modem under the condition that the sending mode of the target data is determined to be broadcast;
the modem carries out filtering analysis on the target data before modulation, and sends a filter confirmation instruction to the radio frequency module under the condition of determining that the target data needs to be filtered;
and after receiving the confirmation filtering instruction, the radio frequency module discards the target data.
In an alternative implementation, after the modem obtains the target data, the method further includes:
caching the target data before modulation in a private cache space of the modem, and restarting a timer; and deleting the cached target data under the condition that a timer is overtime and the filtering request instruction is not received.
In an optional implementation manner, the performing, by the modem, filter analysis on the target data before modulation includes:
and the modem calls a communication interface between the modem and a safety management application program, and the target data is filtered and analyzed through the safety management application program.
In an optional implementation, the method further includes:
and sending the target data to a central processing unit in a low power consumption mode to request for filtering confirmation and wait for a filtering confirmation instruction returned by the central processing unit under the condition that whether the target data needs to be filtered cannot be determined by filtering and analyzing the target data through the safety management application program.
In an optional implementation, the method further includes:
and restarting the timer when waiting for a filtering confirmation instruction returned by the central processing unit, and sending a non-filtering instruction to the radio frequency module when the filtering confirmation instruction is not received after the timer is overtime.
In an optional implementation manner, the performing, by the modem, filter analysis on the target data before modulation includes:
determining that filtering is not required under the condition that the sending source end of the target data is determined to belong to the authorized party of the access equipment; otherwise, calling a communication interface between the security management application program and the target data, and filtering and analyzing the target data through the security management application program.
In two aspects, the embodiment of the invention also provides an access device, which comprises a modem and a radio frequency module;
the modem is configured to obtain target data, modulate the target data, and send the modulated target data to the radio frequency module of the access device;
the radio frequency module is used for sending a filtering request instruction to the modem under the condition that the sending mode of the target data is determined to be broadcast;
the modem is used for filtering and analyzing the target data before modulation, and sending a filter confirmation instruction to the radio frequency module under the condition that the target data needs to be filtered;
and the radio frequency module is used for discarding the target data after receiving the confirmation filtering instruction.
In an optional implementation manner, the modem is further configured to buffer, after obtaining target data, the target data before modulation in a private buffer space of the modem, and restart a timer; and deleting the cached target data under the condition that a timer is overtime and the filtering request instruction is not received.
In an optional implementation manner, the modem, configured to perform filtering analysis on the target data before modulation, includes:
and calling a communication interface between the security management application program and the target data, and filtering and analyzing the target data through the security management application program.
In an optional implementation manner, the modem is further configured to send the target data to a central processing unit in a low power consumption mode, request a filtering confirmation, and wait for a filtering confirmation instruction returned by the central processing unit, when the target data is subjected to filtering analysis by the security management application program and it cannot be determined whether filtering is required.
In an optional implementation manner, the modem is further configured to restart the timer while waiting for a filtering confirmation command returned by the central processing unit, and send an non-filtering command to the radio frequency module if the filtering confirmation command is not received after the timer expires.
In an optional implementation manner, the modem, configured to perform filtering analysis on the target data before modulation, includes:
determining that filtering is not required under the condition that the sending source end of the target data is determined to belong to the authorized party of the access equipment; otherwise, calling a communication interface between the security management application program and the target data, and filtering and analyzing the target data through the security management application program.
According to the technical scheme, the embodiment of the invention has the following advantages: the modem and the radio frequency module are matched to identify the broadcast message and filter the broadcast message, so that the CPU is not required to be awakened and the interruption processing is not required due to the requirement of broadcast message filtering, the work of the CPU is deployed into hardware with an intelligent function, on one hand, the load balance is realized, on the other hand, the interruption of the CPU is reduced, the load of the CPU can be reduced, and the efficiency of the whole access equipment system is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic flow chart of a method according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of a method according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an access device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an access device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. 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.
In one aspect, an embodiment of the present invention provides a method for controlling forwarding of a broadcast message, as shown in fig. 1, including:
101: a modem of access equipment acquires target data, modulates the target data and then sends the modulated target data to a radio frequency module of the access equipment;
the access device refers to an access device in a wireless communication network, and the terminal device accesses the communication network through the access device. Therefore, the access device as a bridge between the terminal device and the communication network needs to forward a large amount of data, and the wireless communication module of the access device receives a large amount of data that needs to be sent to the terminal device, and these data are called target data in the embodiment of the present invention.
102: the radio frequency module sends a filtering request instruction to the modem under the condition that the sending mode of the target data is determined to be broadcast;
since the rf module is a module for performing data transmission, it can know whether the transmission mode of the target data is broadcast transmission or transmission mode with a target address (i.e. with a target terminal device), and if there is no target address, it can be regarded as the target data transmitted by broadcast.
Since the modulated target data is an analog signal and the data content of the analog signal is difficult to obtain, in the embodiment of the present invention, the modem performs the filtering determination, since the target data is a digital signal before the modem performs modulation, and the modem can recognize the target data with the addition of a data parsing function.
103: the modem carries out filtering analysis on the target data before modulation, and sends a filter confirmation instruction to the radio frequency module under the condition of determining that the target data needs to be filtered;
in this embodiment, the modem adds a data parsing function to obtain specific content of the target data, and during the process of performing filtering analysis, a local database of the modem or a large database of the access device may be used; wherein, the former is quicker, and the latter is more sufficient for filtration; the specific filtering method can be selected according to the requirement, and the embodiment of the invention is not limited.
The filtering confirmation command is used for informing the radio frequency module that the filtering can be carried out, and can be an electric signal without carrying any other information.
104: and after receiving the confirmation filtering instruction, the radio frequency module discards the target data.
In this embodiment, discarding the target data can be understood as: the target data is deleted or not transmitted.
As can be seen from the above technical solutions, the present embodiment has the following advantages: the modem and the radio frequency module are matched to identify the broadcast message and filter the broadcast message, so that the CPU is not required to be awakened and the interruption processing is not required due to the requirement of broadcast message filtering, the work of the CPU is deployed into hardware with an intelligent function, on one hand, the load balance is realized, on the other hand, the interruption of the CPU is reduced, the load of the CPU can be reduced, and the efficiency of the whole access equipment system is improved.
In an alternative implementation, since the modem itself does not have the function of obtaining the sending mode of the target data, the modem needs to perform filtering analysis after receiving the filtering request instruction, and the modem needs to use the target data before modulation, so that the modem can buffer the data to facilitate subsequent use, and based on this, the following solutions are provided in the embodiments of the present invention: after the modem obtains the target data, the method further comprises:
caching the target data before modulation in a private cache space of the modem, and restarting a timer; and deleting the cached target data under the condition that a timer is overtime and the filtering request instruction is not received.
In this embodiment, the modem needs to use the target data before modulation, so the modem can buffer the data, which is convenient for subsequent use; in addition, whether the cached target data needs to be deleted is determined by the timer, the message which can be deleted is not required to be fed back by the radio frequency module, the transmission of the message between different hardware modules is reduced, and the communication resource before the hardware modules is saved.
In an alternative implementation, a specific implementation of the filtering analysis performed by the modem is further provided, as follows: the modem filtering and analyzing the target data before modulation comprises:
and the modem calls a communication interface between the modem and a safety management application program, and the target data is filtered and analyzed through the safety management application program.
In this embodiment, there is a communication interface between the modem and the security management application, and the security management application does not need to be called by the CPU, so that it is not necessary to initiate interrupt processing to the CPU, and the CPU can concentrate on performing other operations, thereby implementing load balancing.
In an alternative implementation, in view of possible limitations of modem data processing capability, the embodiment of the present invention provides a two-stage filtering analysis processing scheme, which is as follows: the method further comprises the following steps:
and sending the target data to a central processing unit in a low power consumption mode to request for filtering confirmation and wait for a filtering confirmation instruction returned by the central processing unit under the condition that whether the target data needs to be filtered cannot be determined by filtering and analyzing the target data through the safety management application program.
In view of the limitation of the data processing capability of the modem, if a very powerful security management application is run, the load may be heavy, so the embodiment of the present invention implements two-stage filtering analysis while considering the filtering effectiveness and efficiency, wherein the security management application running on the modem side may be a security management application with lower complexity relative to the central processing unit, or a security management application with a smaller database. On one hand, the filtering capability of the modem can be considered, and on the other hand, the deep support for the filtering analysis of the problematic target data is provided.
In an optional implementation manner, since the radio frequency module waits for a result of whether filtering is required after sending the filtering request, the radio frequency module may also use a timer manner, and transmit the target data or discard the target data when the timer expires without receiving the result, but this embodiment also provides another implementation manner, as follows: the method further comprises the following steps:
and restarting the timer when waiting for a filtering confirmation instruction returned by the central processing unit, and sending a non-filtering instruction to the radio frequency module when the filtering confirmation instruction is not received after the timer is overtime.
Since the time for the cpu to process may be long, the cpu may not process the result, or the cpu may not feedback the filtering analysis result, but the modem may not wait all the time, and then the modem may determine what result to feedback to the rf module through the timer.
In this embodiment, an unfiltered command is fed back to the rf module, and the rf module broadcasts the target data after receiving the unfiltered command.
In an alternative implementation, an embodiment of the present invention further provides another two-stage filtration analysis scheme, which includes the following specific steps: the modem filtering and analyzing the target data before modulation comprises:
determining that filtering is not required under the condition that the sending source end of the target data is determined to belong to the authorized party of the access equipment; otherwise, calling a communication interface between the security management application program and the target data, and filtering and analyzing the target data through the security management application program.
In this embodiment, the modem only needs to determine whether the source end of the broadcast belongs to the authorized party, so the speed is very fast; the authorizer may be a user that has made a subscription with the operator of the access device. In the two-stage scheme of this embodiment, the modem can complete the first stage of validation very quickly, the efficiency is very high, and the requirement on the data processing capability of the modem is small.
An embodiment of the present invention further provides another method for controlling forwarding of a broadcast message, as shown in fig. 2, including:
201: after obtaining the message to the terminal device, the modem of the access device modulates and sends the modulated message to the radio frequency module;
202: the radio frequency module identifies the sending mode of the message, and if the sending mode of the message is broadcasting, the radio frequency module sends a filtering request to a modem;
203: after receiving the filtering request, the modem executes filtering processing, and if it cannot be determined whether filtering is needed, the modem enters 205; if the filtering is determined to be needed, returning a filtering confirmation to the radio frequency module;
adjusting the filtering process by the demodulator may include: spam such as advertising information is identified.
204: after receiving the filtering confirmation, the radio frequency module deletes the message and does not send the message;
205: the modem sends the message to a central processing unit and waits for a filtering result;
206: the modem sends the filtering result to the radio frequency module.
It can be understood that, if the filtering result is a filtering confirmation, the radio frequency module deletes the message and does not send it; otherwise, the radio frequency module broadcasts the message.
Second aspect, an embodiment of the present invention further provides an access device, as shown in fig. 3, including a modem 301 and a radio frequency module 302; the method can also comprise the following steps: the central processing unit 303 may also include other hardware modules such as a memory and a power supply module, and different hardware is configured according to the requirement of the access device, which is not limited in this embodiment of the present invention; the above hardware can adopt a bus to establish communication connection.
The modem 301 is configured to obtain target data, modulate the target data, and send the modulated target data to the radio frequency module 302 of the access device;
the radio frequency module 302 is configured to send a filtering request instruction to the modem 301 when it is determined that the sending mode of the target data is broadcast;
the modem 301 is configured to perform filtering analysis on the target data before modulation, and send a filter confirmation instruction to the radio frequency module 302 when it is determined that filtering is required;
the radio frequency module 302 is configured to discard the target data after receiving the acknowledgement filter instruction.
The access device refers to an access device in a wireless communication network, and the terminal device accesses the communication network through the access device. Therefore, the access device as a bridge between the terminal device and the communication network needs to forward a large amount of data, and the wireless communication module of the access device receives a large amount of data that needs to be sent to the terminal device, and these data are called target data in the embodiment of the present invention.
Since the rf module is a module for performing data transmission, it can know whether the transmission mode of the target data is broadcast transmission or transmission mode with a target address (i.e. with a target terminal device), and if there is no target address, it can be regarded as the target data transmitted by broadcast.
Since the modulated target data is an analog signal and the data content of the analog signal is difficult to obtain, in the embodiment of the present invention, the modem performs the filtering determination, since the target data is a digital signal before the modem performs modulation, and the modem can recognize the target data with the addition of a data parsing function.
In this embodiment, the modem adds a data parsing function to obtain specific content of the target data, and during the process of performing filtering analysis, a local database of the modem or a large database of the access device may be used; wherein, the former is quicker, and the latter is more sufficient for filtration; the specific filtering method can be selected according to the requirement, and the embodiment of the invention is not limited.
The filtering confirmation command is used for informing the radio frequency module that the filtering can be carried out, and can be an electric signal without carrying any other information.
In this embodiment, discarding the target data can be understood as: the target data is deleted or not transmitted.
As can be seen from the above technical solutions, the present embodiment has the following advantages: the modem and the radio frequency module are matched to identify the broadcast message and filter the broadcast message, so that the CPU is not required to be awakened and the interruption processing is not required due to the requirement of broadcast message filtering, the work of the CPU is deployed into hardware with an intelligent function, on one hand, the load balance is realized, on the other hand, the interruption of the CPU is reduced, the load of the CPU can be reduced, and the efficiency of the whole access equipment system is improved.
In an alternative implementation, since the modem itself does not have the function of obtaining the sending mode of the target data, the modem needs to perform filtering analysis after receiving the filtering request instruction, and the modem needs to use the target data before modulation, so that the modem can buffer the data to facilitate subsequent use, and based on this, the following solutions are provided in the embodiments of the present invention: the modem 301 is further configured to, after the modem 301 obtains target data, cache the target data before modulation in a private cache space of the modem 301, and restart a timer; and deleting the cached target data under the condition that a timer is overtime and the filtering request instruction is not received.
In this embodiment, the modem needs to use the target data before modulation, so the modem can buffer the data, which is convenient for subsequent use; in addition, whether the cached target data needs to be deleted is determined by the timer, the message which can be deleted is not required to be fed back by the radio frequency module, the transmission of the message between different hardware modules is reduced, and the communication resource before the hardware modules is saved.
In an alternative implementation, a specific implementation of the filtering analysis performed by the modem is further provided, as follows: the modem 301, configured to perform filtering analysis on the target data before modulation, includes:
and calling a communication interface between the security management application program and the target data, and filtering and analyzing the target data through the security management application program.
In this embodiment, there is a communication interface between the modem and the security management application, and the security management application does not need to be called by the CPU, so that it is not necessary to initiate interrupt processing to the CPU, and the CPU can concentrate on performing other operations, thereby implementing load balancing.
In an alternative implementation, in view of possible limitations of modem data processing capability, the embodiment of the present invention provides a two-stage filtering analysis processing scheme, which is as follows: the modem 301 is further configured to send the target data to a central processing unit in a low power consumption mode, request for filter confirmation, and wait for a filter confirmation instruction returned by the central processing unit when the target data is subjected to filter analysis by the security management application program and it cannot be determined whether filtering is required.
In view of the limitation of the data processing capability of the modem, if a very powerful security management application is run, the load may be heavy, so the embodiment of the present invention implements two-stage filtering analysis while considering the filtering effectiveness and efficiency, wherein the security management application running on the modem side may be a security management application with lower complexity relative to the central processing unit, or a security management application with a smaller database. On one hand, the filtering capability of the modem can be considered, and on the other hand, the deep support for the filtering analysis of the problematic target data is provided.
In an optional implementation manner, since the radio frequency module waits for a result of whether filtering is required after sending the filtering request, the radio frequency module may also use a timer manner, and transmit the target data or discard the target data when the timer expires without receiving the result, but this embodiment also provides another implementation manner, as follows: the modem 301 is further configured to restart the timer when waiting for a filtering confirmation command returned by the central processing unit, and send an non-filtering command to the radio frequency module 302 when the filtering confirmation command is not received after the timer expires.
Since the time for the cpu to process may be long, the cpu may not process the result, or the cpu may not feedback the filtering analysis result, but the modem may not wait all the time, and then the modem may determine what result to feedback to the rf module through the timer.
In this embodiment, an unfiltered command is fed back to the rf module, and the rf module broadcasts the target data after receiving the unfiltered command.
In an alternative implementation, an embodiment of the present invention further provides another two-stage filtration analysis scheme, which includes the following specific steps: the modem 301, configured to perform filtering analysis on the target data before modulation, includes:
determining that filtering is not required under the condition that the sending source end of the target data is determined to belong to the authorized party of the access equipment; otherwise, calling a communication interface between the security management application program and the target data, and filtering and analyzing the target data through the security management application program.
In this embodiment, the modem only needs to determine whether the source end of the broadcast belongs to the authorized party, so the speed is very fast; the authorizer may be a user that has made a subscription with the operator of the access device. In the two-stage scheme of this embodiment, the modem can complete the first stage of validation very quickly, the efficiency is very high, and the requirement on the data processing capability of the modem is small.
As shown in fig. 4, for convenience of description, only the parts related to the embodiment of the present invention are shown, and details of the technology are not disclosed, please refer to the method part of the embodiment of the present invention. The access device may be a wireless router including a base station and a home, where the base station is taken as an example in this embodiment:
fig. 4 is a block diagram illustrating a partial structure of a base station related to an access device provided by an embodiment of the present invention. Referring to fig. 4, the base station includes: memory 410, input unit 420, rf module 430, cpu 440, modem 460, and power supply 450. Those skilled in the art will appreciate that the base station architecture shown in fig. 4 does not constitute a limitation of the base station and may include more or fewer components than shown, or some components may be combined, or a different arrangement of components.
The modem 460 is configured to obtain target data, modulate the target data, and send the modulated target data to the radio frequency module 430 of the access device;
the radio frequency module 430 is configured to send a filtering request instruction to the modem 460 when it is determined that the sending mode of the target data is broadcast;
the modem 460 is configured to perform filtering analysis on the target data before modulation, and send a filter confirmation instruction to the radio frequency module 430 when it is determined that filtering is required;
the radio frequency module 430 is configured to discard the target data after receiving the acknowledgement filter instruction.
The access device refers to an access device in a wireless communication network, and the terminal device accesses the communication network through the access device. Therefore, the access device as a bridge between the terminal device and the communication network needs to forward a large amount of data, and the wireless communication module of the access device receives a large amount of data that needs to be sent to the terminal device, and these data are called target data in the embodiment of the present invention.
Since the rf module is a module for performing data transmission, it can know whether the transmission mode of the target data is broadcast transmission or transmission mode with a target address (i.e. with a target terminal device), and if there is no target address, it can be regarded as the target data transmitted by broadcast.
Since the modulated target data is an analog signal and the data content of the analog signal is difficult to obtain, in the embodiment of the present invention, the modem performs the filtering determination, since the target data is a digital signal before the modem performs modulation, and the modem can recognize the target data with the addition of a data parsing function.
In this embodiment, the modem adds a data parsing function to obtain specific content of the target data, and during the process of performing filtering analysis, a local database of the modem or a large database of the access device may be used; wherein, the former is quicker, and the latter is more sufficient for filtration; the specific filtering method can be selected according to the requirement, and the embodiment of the invention is not limited.
The filtering confirmation command is used for informing the radio frequency module that the filtering can be carried out, and can be an electric signal without carrying any other information.
In this embodiment, discarding the target data can be understood as: the target data is deleted or not transmitted.
As can be seen from the above technical solutions, the present embodiment has the following advantages: the modem and the radio frequency module are matched to identify the broadcast message and filter the broadcast message, so that the CPU is not required to be awakened and the interruption processing is not required due to the requirement of broadcast message filtering, the work of the CPU is deployed into hardware with an intelligent function, on one hand, the load balance is realized, on the other hand, the interruption of the CPU is reduced, the load of the CPU can be reduced, and the efficiency of the whole access equipment system is improved.
In an alternative implementation, since the modem itself does not have the function of obtaining the sending mode of the target data, the modem needs to perform filtering analysis after receiving the filtering request instruction, and the modem needs to use the target data before modulation, so that the modem can buffer the data to facilitate subsequent use, and based on this, the following solutions are provided in the embodiments of the present invention: the modem 460 is further configured to buffer, after the modem 460 obtains target data, the target data before modulation in a private buffer space of the modem 460, and restart a timer; and deleting the cached target data under the condition that a timer is overtime and the filtering request instruction is not received.
In this embodiment, the modem needs to use the target data before modulation, so the modem can buffer the data, which is convenient for subsequent use; in addition, whether the cached target data needs to be deleted is determined by the timer, the message which can be deleted is not required to be fed back by the radio frequency module, the transmission of the message between different hardware modules is reduced, and the communication resource before the hardware modules is saved.
In an alternative implementation, a specific implementation of the filtering analysis performed by the modem is further provided, as follows: the modem 460 is configured to perform filtering analysis on the target data before modulation, including:
and calling a communication interface between the security management application program and the target data, and filtering and analyzing the target data through the security management application program.
In this embodiment, there is a communication interface between the modem and the security management application, and the security management application does not need to be called by the CPU, so that it is not necessary to initiate interrupt processing to the CPU, and the CPU can concentrate on performing other operations, thereby implementing load balancing.
In an alternative implementation, in view of possible limitations of modem data processing capability, the embodiment of the present invention provides a two-stage filtering analysis processing scheme, which is as follows: the modem 460 is further configured to send the target data to the central processing unit in the low power consumption mode, request a filter confirmation, and wait for a filter confirmation instruction returned by the central processing unit, when the target data is subjected to the filter analysis by the security management application program and it cannot be determined whether filtering is required.
In view of the limitation of the data processing capability of the modem, if a very powerful security management application is run, the load may be heavy, so the embodiment of the present invention implements two-stage filtering analysis while considering the filtering effectiveness and efficiency, wherein the security management application running on the modem side may be a security management application with lower complexity relative to the central processing unit, or a security management application with a smaller database. On one hand, the filtering capability of the modem can be considered, and on the other hand, the deep support for the filtering analysis of the problematic target data is provided.
In an optional implementation manner, since the radio frequency module waits for a result of whether filtering is required after sending the filtering request, the radio frequency module may also use a timer manner, and transmit the target data or discard the target data when the timer expires without receiving the result, but this embodiment also provides another implementation manner, as follows: the modem 460 is further configured to restart the timer while waiting for the filtering confirmation command returned by the central processing unit, and send an non-filtering command to the rf module 430 if the filtering confirmation command is not received after the timer expires.
Since the time for the cpu to process may be long, the cpu may not process the result, or the cpu may not feedback the filtering analysis result, but the modem may not wait all the time, and then the modem may determine what result to feedback to the rf module through the timer.
In this embodiment, an unfiltered command is fed back to the rf module, and the rf module broadcasts the target data after receiving the unfiltered command.
In an alternative implementation, an embodiment of the present invention further provides another two-stage filtration analysis scheme, which includes the following specific steps: the modem 460 is configured to perform filtering analysis on the target data before modulation, including:
determining that filtering is not required under the condition that the sending source end of the target data is determined to belong to the authorized party of the access equipment; otherwise, calling a communication interface between the security management application program and the target data, and filtering and analyzing the target data through the security management application program.
It should be noted that, in the above embodiment of the access device, each included unit is only divided according to functional logic, but is not limited to the above division as long as the corresponding function can be implemented; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
In addition, it is understood by those skilled in the art that all or part of the steps in the above method embodiments may be implemented by related hardware, and the corresponding program may be stored in a computer readable storage medium, where the above mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the embodiment of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (15)
1. A method for controlling forwarding of a broadcast message, comprising:
a modem of access equipment acquires target data, modulates the target data and then sends the modulated target data to a radio frequency module of the access equipment;
the radio frequency module sends a filtering request instruction to the modem under the condition that the sending mode of the target data is determined to be broadcast;
the modem carries out filtering analysis on the target data before modulation, and sends a filter confirmation instruction to the radio frequency module under the condition of determining that the target data needs to be filtered;
the radio frequency module discards the target data after receiving the confirmation filtering instruction;
wherein the modem performing filtering analysis on the target data before modulation includes:
and the modem calls a communication interface between the modem and a safety management application program, and the target data is filtered and analyzed through the safety management application program.
2. The method of claim 1, wherein after the modem obtains the target data, the method further comprises:
caching the target data before modulation in a private cache space of the modem, and restarting a timer; and deleting the cached target data under the condition that a timer is overtime and the filtering request instruction is not received.
3. The method of claim 2, further comprising:
and sending the target data to a central processing unit in a low power consumption mode to request for filtering confirmation and wait for a filtering confirmation instruction returned by the central processing unit under the condition that whether the target data needs to be filtered cannot be determined by filtering and analyzing the target data through the safety management application program.
4. The method of claim 3, further comprising:
and restarting the timer when waiting for a filtering confirmation instruction returned by the central processing unit, and sending a non-filtering instruction to the radio frequency module when the filtering confirmation instruction is not received after the timer is overtime.
5. The method of claim 1, further comprising:
and sending the target data to a central processing unit in a low power consumption mode to request for filtering confirmation and wait for a filtering confirmation instruction returned by the central processing unit under the condition that whether the target data needs to be filtered cannot be determined by filtering and analyzing the target data through the safety management application program.
6. A method for controlling forwarding of a broadcast message, comprising:
a modem of access equipment acquires target data, modulates the target data and then sends the modulated target data to a radio frequency module of the access equipment;
the radio frequency module sends a filtering request instruction to the modem under the condition that the sending mode of the target data is determined to be broadcast;
the modem carries out filtering analysis on the target data before modulation, and sends a filter confirmation instruction to the radio frequency module under the condition of determining that the target data needs to be filtered;
the radio frequency module discards the target data after receiving the confirmation filtering instruction;
wherein the modem performing filtering analysis on the target data before modulation includes:
determining that filtering is not required under the condition that the sending source end of the target data is determined to belong to the authorized party of the access equipment; otherwise, calling a communication interface between the security management application program and the target data, and filtering and analyzing the target data through the security management application program.
7. The method of claim 6, wherein after the modem obtains the target data, the method further comprises:
caching the target data before modulation in a private cache space of the modem, and restarting a timer; and deleting the cached target data under the condition that a timer is overtime and the filtering request instruction is not received.
8. An access device comprising a modem and a radio frequency module,
the modem is used for acquiring target data, modulating the target data and then sending the modulated target data to the radio frequency module of the access equipment;
the radio frequency module is used for sending a filtering request instruction to the modem under the condition that the sending mode of the target data is determined to be broadcast;
the modem is used for filtering and analyzing the target data before modulation, and sending a filter confirmation instruction to the radio frequency module under the condition that the target data needs to be filtered;
the radio frequency module is used for discarding the target data after receiving the confirmation filtering instruction;
wherein,
the modem is configured to perform filtering analysis on the target data before modulation, and includes:
and calling a communication interface between the security management application program and the target data, and filtering and analyzing the target data through the security management application program.
9. The access device of claim 8,
the modem is further configured to cache, in a private cache space of the modem, the target data before modulation after the target data is obtained by the modem, and restart a timer; and deleting the cached target data under the condition that a timer is overtime and the filtering request instruction is not received.
10. The access device of claim 9,
the modem is further configured to send the target data to a central processing unit in a low power consumption mode, request for filter confirmation, and wait for a filter confirmation instruction returned by the central processing unit when the target data is subjected to filter analysis by the security management application program and whether filtering is required cannot be determined.
11. The access device of claim 10,
the modem is further configured to restart the timer when waiting for a filtering confirmation instruction returned by the central processing unit, and send an non-filtering instruction to the radio frequency module when the filtering confirmation instruction is not received after the timer expires.
12. The access device of claim 8,
the modem is further configured to send the target data to a central processing unit in a low power consumption mode, request for filter confirmation, and wait for a filter confirmation instruction returned by the central processing unit when the target data is subjected to filter analysis by the security management application program and whether filtering is required cannot be determined.
13. An access device comprising a modem and a radio frequency module,
the modem is used for acquiring target data, modulating the target data and then sending the modulated target data to the radio frequency module of the access equipment;
the radio frequency module is used for sending a filtering request instruction to the modem under the condition that the sending mode of the target data is determined to be broadcast;
the modem is used for filtering and analyzing the target data before modulation, and sending a filter confirmation instruction to the radio frequency module under the condition that the target data needs to be filtered;
the radio frequency module is used for discarding the target data after receiving the confirmation filtering instruction;
wherein,
the modem is configured to perform filtering analysis on the target data before modulation, and includes:
determining that filtering is not required under the condition that the sending source end of the target data is determined to belong to the authorized party of the access equipment; otherwise, calling a communication interface between the security management application program and the target data, and filtering and analyzing the target data through the security management application program.
14. The access device of claim 13,
the modem is further configured to cache, in a private cache space of the modem, the target data before modulation after the target data is obtained by the modem, and restart a timer; and deleting the cached target data under the condition that a timer is overtime and the filtering request instruction is not received.
15. A computer-readable storage medium, characterized in that a computer program is stored, which, when being executed by a computer, is capable of carrying out the method of any one of claims 1 to 7.
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