CN111224743A - Detection method, terminal and computer readable storage medium - Google Patents
Detection method, terminal and computer readable storage medium Download PDFInfo
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- CN111224743A CN111224743A CN201811409439.4A CN201811409439A CN111224743A CN 111224743 A CN111224743 A CN 111224743A CN 201811409439 A CN201811409439 A CN 201811409439A CN 111224743 A CN111224743 A CN 111224743A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
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- H04L1/0061—Error detection codes
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Abstract
The embodiment of the invention discloses a detection method, which comprises the following steps: receiving signaling information sent by a network side, and determining a signaling identifier of the signaling information; checking the signaling information, and preprocessing the signaling information after the signaling information is checked to obtain a first characteristic field of the signaling information; acquiring first sample signaling information based on the signaling identifier, and acquiring a reference characteristic field based on the first sample signaling information; and determining whether the signaling information is legal signaling information or not based on the reference characteristic field and the first characteristic field. The embodiment of the invention also discloses a terminal and a computer readable storage medium.
Description
Technical Field
The embodiments of the present invention relate to, but not limited to, the field of mobile communication technologies, and in particular, to a detection method, a terminal, and a computer-readable storage medium.
Background
With The continuous development of The 3rd Generation Partnership Project (3 GPP) mobile communication technology, The protocol version of signaling in 3GPP is also continuously upgraded, and in The upgraded protocol version, reserved (spare) bytes or fields in The previous version are gradually enabled or reserved (reserved) bytes or fields are gradually enabled. For example, in Release 13(Release 13, R13) to which the Long Term Evolution (LTE) protocol is upgraded, 5bits in a 10-byte (bits) reserved field in Master Information Block (MIB) signaling before Release 12 and Release 12 are used to indicate scheduling bits of System Information Block (SIB) 1, and only the remaining 5bits in the 10-byte (bits) reserved field are left to continue as the reserved field. However, with the continuous upgrade of the protocol version, the decision mechanism of the terminal is limited, so that the terminal cannot be compatible with the network corresponding to the new version protocol, and the terminal cannot be registered in the network or perform a normal service function with the network.
In order to solve the problem that the terminal cannot be compatible with the network corresponding to the new version protocol, a commonly used scheme in the related art includes: a protective filtering method is adopted, namely when the terminal judges that the spare/reserved bytes in the signaling information sent by the network side or all fields in the fields are 0, the signaling information is considered to be legal, otherwise, the signaling information is considered to be damaged, the illegal signaling information is illegal, and the signaling information is discarded, the protective filtering method can improve the reliability of the terminal for detecting the signaling information in the old version protocol, but once the protocol version is upgraded, the technical problem can not be solved; the spare/reserved field is not set with a limiting method at will, that is, the network side can set the spare/reserved field in the signaling information at will, and the terminal does not consider the signaling information as illegal, so that although the terminal can be compatible with the subsequently updated network, the spare/reserved field also participates in the Check when performing Cyclic Redundancy Check (CRC) Check, and the damaged signaling information sent when the wireless channel interference is large and the signal is bad can pass the CRC Check, so that the terminal still cannot be registered in the network or can perform normal service function with the network.
Disclosure of Invention
In order to solve the above technical problems, embodiments of the present invention desirably provide a detection method, a terminal, and a computer-readable storage medium, so as to solve the problem that a terminal in the related art is not well compatible with a network corresponding to a new version protocol, achieve that the terminal is compatible with the network corresponding to the new version protocol, reduce a detection error rate of signaling information sent by a network side, and ensure that the terminal can be effectively registered in the network or perform a normal service function with the network.
The technical scheme of the embodiment of the invention is realized as follows:
a method of detection, the method comprising:
receiving signaling information sent by a network side, and determining a signaling identifier of the signaling information;
checking the signaling information, and preprocessing the signaling information after the signaling information is checked to obtain a first characteristic field of the signaling information;
acquiring first sample signaling information based on the signaling identifier, and acquiring a reference characteristic field based on the first sample signaling information;
and determining whether the signaling information is legal signaling information or not based on the reference characteristic field and the first characteristic field.
A terminal, the terminal comprising: a processor, a memory, and a communication bus; wherein:
the communication bus is used for realizing connection communication between the processor and the memory;
the processor is used for executing the detection program stored in the memory to realize the following steps:
receiving signaling information sent by a network side, and determining a signaling identifier of the signaling information;
checking the signaling information, and preprocessing the signaling information after the signaling information is checked to obtain a first characteristic field of the signaling information;
acquiring first sample signaling information based on the signaling identifier, and acquiring a reference characteristic field based on the first sample signaling information;
and determining whether the signaling information is legal signaling information or not based on the reference characteristic field and the first characteristic field.
A computer readable storage medium having stored thereon a detection program which, when executed by a processor, implements the steps of the detection method described above.
The detection method, the terminal and the computer readable storage medium provided by the embodiment of the invention firstly receive signaling information sent by a network side, after determining a signaling identifier of the signaling information, verify the signaling information and preprocess the signaling information after the signaling information is verified to obtain a first characteristic field of the signaling information, then obtain first sample signaling information based on the signaling identifier, obtain a reference characteristic field based on the first sample signaling information, and finally determine whether the signaling information is legal signaling information based on the reference characteristic field and the first characteristic field. Therefore, the terminal further checks the signaling information passing the checking to determine whether the signaling information is legal signaling information, the problem that the terminal cannot be well compatible with the network corresponding to the new version protocol in the related technology is solved, the terminal can be compatible with the network corresponding to the new version protocol, the checking error rate of the signaling information sent by the network side is reduced, and the terminal can be effectively registered to the network or can perform normal service function with the network.
Drawings
Fig. 1 is a schematic flow chart of a detection method according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of another detection method according to an embodiment of the present invention;
fig. 3 is a schematic diagram of an application scenario provided in the embodiment of the present invention;
FIG. 4 is a schematic flow chart of another detection method according to an embodiment of the present invention;
fig. 5 is a schematic diagram of another application scenario provided in the embodiment of the present invention;
fig. 6 is a schematic flow chart of a detection method according to another embodiment of the present invention;
FIG. 7 is a schematic flow chart of another detection method according to another embodiment of the present invention;
fig. 8 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
An embodiment of the present invention provides a detection method, which is shown in fig. 1 and includes the following steps:
Specifically, step 101 "receiving signaling information sent by the network side, and determining a signaling identifier of the signaling information" may be implemented by the terminal. The signaling information may be any downlink signaling information sent by the network side to the terminal. The signaling identification is identification information for uniquely identifying the signaling information.
And 102, checking the signaling information, and preprocessing the signaling information after the signaling information is checked to obtain a first characteristic field of the signaling information.
Specifically, step 102 "check the signaling information, and preprocess the signaling information after the signaling information check is passed, so as to obtain the first characteristic field" of the signaling information, which can be implemented by the terminal. The terminal can adopt a preset checking algorithm to check the received signaling information, if the signaling information is not checked, the signaling information is not processed, and the signaling information is directly discarded. The preprocessing may be a process in which the terminal parses the signaling information to obtain the first characteristic field for further inspection analysis. The first characteristic field is several consecutive bytes of the bytes corresponding to the signaling information. The method comprises the steps of preprocessing one piece of signaling information corresponding to the same signaling identifier to obtain at least one first characteristic field.
And 103, acquiring first sample signaling information based on the signaling identifier, and acquiring a reference characteristic field based on the first sample signaling information.
Specifically, step 103 "obtaining the first sample signaling information based on the signaling identifier and obtaining the reference feature field based on the first sample signaling information" may be implemented by the terminal. The signaling identifier of the first sample signaling information is the same as the signaling identifier of the signaling information received by the terminal, the first sample signaling information may be stored in a local storage unit of the terminal, and the first sample signaling information may have a plurality of sample signaling information. The terminal preprocesses the first sample signaling information to obtain a characteristic field corresponding to the first characteristic field in each sample signaling information, and performs statistical analysis on the characteristic field corresponding to the first characteristic field to obtain a reference characteristic field corresponding to the first characteristic field. That is to say, the number of the reference characteristic fields obtained by processing the first sample signaling information is the same as the number of the first characteristic fields obtained by processing the signaling information, and different first characteristic fields correspond to different reference characteristic fields.
And step 104, determining whether the signaling information is legal signaling information or not based on the reference characteristic field and the first characteristic field.
Specifically, the step 104 "determining whether the signaling information is legal signaling information based on the reference characteristic field and the first characteristic field" may be implemented by the terminal. Whether the soul information is legal signaling information can be determined by judging whether the contents of each first characteristic field and the reference characteristic field corresponding to each characteristic field are the same.
The detection method provided by the embodiment of the invention comprises the steps of firstly receiving signaling information sent by a network side, after determining a signaling identifier of the signaling information, checking the signaling information, preprocessing the signaling information after the signaling information passes the checking to obtain a first characteristic field of the signaling information, then obtaining first sample signaling information based on the signaling identifier, obtaining a reference characteristic field based on the first sample signaling information, and finally determining whether the signaling information is legal signaling information based on the reference characteristic field and the first characteristic field. Therefore, the terminal further checks the signaling information passing the checking to determine whether the signaling information is legal signaling information, the problem that the terminal cannot be well compatible with the network corresponding to the new version protocol in the related technology is solved, the terminal can be compatible with the network corresponding to the new version protocol, the checking error rate of the signaling information sent by the network side is reduced, and the terminal can be effectively registered to the network or can perform normal service function with the network.
Based on the foregoing embodiments, an embodiment of the present invention provides a detection method, which is shown in fig. 2 and includes the following steps:
Specifically, the terminal is taken as a mobile phone, the network side corresponds to a base station, the signaling Information received by the terminal is Master Information Block (Master Information Block) signaling Information, and the mobile phone receives the Master Information Block signaling Information sent by the current base station and determines that the signaling identifier of the Master Information Block signaling Information is Master Information Block. It should be noted here that when the base station issues the downlink message to the mobile phone, signaling information corresponding to the same signaling identifier is issued continuously according to a certain time period.
Specifically, the preset Check algorithm may be a Cyclic Redundancy Check (CRC) Check algorithm, or may be other Check algorithms, which is not limited at all. The mobile phone adopts a CRC algorithm to check the signaling message which is currently received and marked as Masternformation Block.
And 203, if the signaling information passes the verification, the terminal decodes the signaling information, and determines fields which cannot be decoded and/or do not need to be decoded, so as to obtain fields to be processed.
Specifically, for example, a signaling message with a signaling identifier of masterformationblock currently received by a mobile phone is shown in fig. 3, the signaling message with the signaling identifier of masterformationblock has 17 bits in total, the positions of the first behavior bits may be marked as 0, 1, 2, … …, 16, the content in the bits corresponding to the 2 nd behavior is 01010000110011001 in sequence, the terminal decodes 01010000110011001, a field to be processed, for example, the positions of the corresponding bits are 5, 6, 7, 13, 14, 15, and 16, and the positions of the bits correspond to content 0, 1, 0, and 1 in sequence.
And step 204, the terminal processes the fields to be processed to obtain M first characteristic fields.
Wherein M is a positive integer.
Specifically, the terminal performs segmentation processing on the obtained field to be processed according to a certain preset rule to obtain M first characteristic fields.
Specifically, the terminal obtains historical signaling information stored in the terminal and corresponding to the signaling identifier masterinformation block, and obtains first sample signaling information.
And step 206, if the number of the samples is the preset number N, the terminal preprocesses the first sample signaling information to obtain a first field set.
Wherein N is a positive integer.
Specifically, the preset number N is a number empirical value obtained through a large number of experiments, or a number empirical value obtained according to an actual application scenario, or a number empirical value obtained through an experiment in combination with an actual application. The preset number N corresponding to the signaling information of different signaling identifiers is different, and the preset number N can be adjusted under certain conditions.
If the number of samples of the corresponding first sample signaling information is smaller than the preset number N when the signaling information is currently received, the currently received signaling information is determined to be legal, and the currently received signaling information is stored as the first sample signaling information.
If the number of the samples is the preset number N, the terminal preprocesses each sample signaling information in the first sample signaling information to obtain a characteristic field to be processed of each sample signaling information, and performs segmentation processing on the characteristic field to be processed of each sample signaling information by adopting a preset rule for obtaining M first characteristic fields to obtain M characteristic fields of each sample signaling information, so that M multiplied by N characteristic fields are totally obtained in a first field set obtained for the first sample signaling information. Preferably, in the first field set, the signaling identifier is used as a first index entry, the order in which the sample signaling information is received is used as a second index entry, and a field that cannot be decoded or does not need to be decoded of each sample signaling information is used as a third index entry.
Specifically, the terminal classifies M × N feature fields in the first field set to obtain M classes, and performs statistics on each class to obtain M reference feature fields.
And step 208, if the content of each first characteristic field is the same as the content of the reference characteristic field corresponding to each first characteristic field, determining that the signaling information is legal signaling information.
Specifically, the terminal determines the contents of M first characteristic fields and the contents of M reference characteristic fields in the signaling information, and if the contents of the M first characteristic fields are the same as the contents of the respective reference characteristic fields, it may be determined that the signaling information is legal information. Otherwise, when the content of at least one first characteristic field in the M first characteristic fields is different from the content of the reference characteristic field corresponding to the first characteristic field, the signaling information is illegal signaling information.
The detection method provided by the embodiment of the invention comprises the steps of firstly receiving signaling information sent by a network side, after determining a signaling identifier of the signaling information, checking the signaling information, preprocessing the signaling information after the signaling information passes the checking to obtain a first characteristic field of the signaling information, then obtaining first sample signaling information based on the signaling identifier, obtaining a reference characteristic field based on the first sample signaling information, and finally determining whether the signaling information is legal signaling information based on the reference characteristic field and the first characteristic field. Therefore, the terminal further checks the signaling information passing the checking to determine whether the signaling information is legal signaling information, the problem that the terminal cannot be well compatible with the network corresponding to the new version protocol in the related technology is solved, the terminal can be compatible with the network corresponding to the new version protocol, the checking error rate of the signaling information sent by the network side is reduced, and the terminal can be effectively registered to the network or can perform normal service function with the network.
Based on the foregoing embodiments, an embodiment of the present invention provides a detection method, which is shown in fig. 4 and includes the following steps:
And 303, if the signaling information passes the verification, decoding the signaling information, and determining fields which cannot be decoded and/or do not need to be decoded to obtain fields to be processed.
And step 304, the terminal determines each continuous bit field in the fields to be processed to obtain M first characteristic fields.
Wherein M is a positive integer.
Specifically, the preset condition is to segment the field to be processed according to consecutive bits. For example, the positions of the bits corresponding to the field to be processed obtained by the terminal are 5, 6, 7, 13, 14, 15 and 16, the positions of the bits sequentially correspond to contents 0, 1, 0 and 1, and the terminal determines that the positions of each bit in the field to be processed which are continuous are (5, 6, 7) and (13, 14, 15 and 16), so that 2 first characteristic fields 000 and 1001 can be obtained, where M is 2. The two first characteristic fields may be recorded as the 1 st first characteristic field during recording, or may be reserved field 1: the start offset position S1 is 5, the byte length L1 is 3, the bit data Value1 is 000, and the 2 nd first feature field may also be the reserved field 2: the start offset position S2 is 13, the byte length L2 is 4, and the bit data Value2 is 1001.
And 305, the terminal acquires the first sample signaling information based on the signaling identifier and determines the sample number of the first sample signaling information.
And step 306, if the number of the samples is the preset number N, the terminal preprocesses the first sample signaling information to obtain a first field set.
Wherein N is a positive integer.
Specifically, because the sample signaling information in the first sample signaling information is the same as the signaling identifier of the signaling information received by the terminal, the preprocessing performed by the terminal on the first sample signaling information is the same as the preprocessing performed on the signaling information, and finally, the bit position of the characteristic field of each sample signaling information in the first sample signaling information is obtained and is the same as the bit position of the first characteristic field of the signaling information.
Assuming that the preset number N is 4, the first field set obtained by preprocessing the first sample signaling information by the terminal may include, as shown in fig. 5, a first index signaling identifier, a receiving sequence of each sample signaling information in the received first sample signaling information, each start offset position S of a field that cannot be decoded and/or does not need to be decoded in each sample signaling information, a corresponding byte length L, and a corresponding bit data Value.
And 307, the terminal acquires N characteristic fields corresponding to the bits of the jth first characteristic field one by one from the first field set to obtain N second characteristic fields.
Wherein j is a positive integer and j is less than or equal to M.
Specifically, the terminal may obtain, from the first field set list shown in fig. 5, the feature fields that are the same as the starting offset position S1 and the byte length L1 of the 1 st first feature field, that is, the bit data Value1 in the 4 sample signaling information, to obtain 41 st second feature fields, which are 000, and 001 in order of reception.
And 308, the terminal performs statistical analysis on the characteristic fields in the N second characteristic fields to obtain a reference characteristic field corresponding to the jth first characteristic field.
Wherein, the M reference characteristic fields comprise reference characteristic fields obtained by taking j from 1 to M.
Specifically, the terminal performs statistical analysis on 4 second characteristic fields 000, and 001, and obtains a reference characteristic field corresponding to the 1 st first characteristic field from the 4 second characteristic fields.
It should be noted that the terminal may repeatedly execute steps 307 to 308 until M groups of N second characteristic fields corresponding to M first characteristic fields in the first sample signaling information are all subjected to statistical analysis, so as to obtain M reference characteristic fields. For example, after obtaining the reference field corresponding to the 1 st first feature field, the terminal continues to obtain, from the first field set list shown in fig. 5, the feature fields that are the same as the starting offset position S2 and the byte length L2 in the 2 nd first feature field, that is, the bit data Value2 in the 4 sample signaling information, to obtain 4 brother 2 second feature fields, which are 0011, 0110, and 0111 in order of reception, and performs statistical analysis on 0011, 0110, and 0111, to obtain the reference feature field corresponding to the 2 nd first feature field. And because M in the signaling information is 2, the terminal finishes the statistical analysis of 2 groups of 4 second characteristic fields in the first sample signaling information, and the cycle is finished.
In other embodiments of the present invention, step 308 may be specifically implemented by the following steps:
and step 308a1, the terminal counts the feature fields with the largest quantity and the same field content in the N second feature fields to obtain a third feature field.
Specifically, the terminal counts the number of occurrences of the contents of the 000, 000 and 001 fields as follows: 000, 3 times; 001, 1 times. It can be determined that the bit field having the largest number and the same field content is 000, i.e., the third characteristic field is 000.
Step 308a2, the terminal determines the number of the third characteristic fields to obtain a first number, and calculates the ratio between the first number and N to obtain a first ratio.
Specifically, the terminal determines the number of the third feature fields 000, that is, the first number is 3, and the ratio between the first number 3 and N-4, that is, the first ratio is 0.75 where the first number/N-3/4 is 0.75, and may be expressed as 75% by percentage.
Step 308a3, the terminal counts the number of different feature fields in the N second feature fields to obtain a second number, and calculates the ratio between the second number and N to obtain a second ratio.
Specifically, the terminal counts that the different feature fields in the fields 000, and 001 are 000 and 001, that is, the second number is 2, so that the second ratio is the second number/N is 2/4 is 0.5, which may be expressed as 50% by percentage.
Correspondingly, the terminal performs statistical analysis on the 2 nd group of 4 second characteristic fields 0011, 0110 and 0111 to obtain a third characteristic field 0110, wherein the first ratio is 50% and the second ratio is 75%.
It should be noted that, when the terminal executes step 308a3, the terminal may select to execute step 308a4 or step 308a5 according to the magnitude relationship between the first ratio and the first threshold and the magnitude relationship between the second ratio and the second threshold;
step 308a4, if the first ratio is greater than or equal to the first threshold and the second ratio is less than the second threshold, the terminal determines the reference characteristic field corresponding to the jth first characteristic field as the third characteristic field.
Specifically, the first threshold and the second threshold are both empirical values, and may be adjusted according to an actual application scenario. The first threshold and the second threshold may be the same or different, and are not limited herein.
Assuming that the first threshold and the second threshold are equal to each other and are both 70%, for the 1 st first feature field, since the first ratio of 75% is greater than the first threshold of 70% and the second ratio of 50% is less than the second threshold of 70%, the reference feature field corresponding to the 1 st first feature field is the third feature field 000. That is to say the reserved field 1 is static.
Step 308a5, if the first ratio is smaller than the first threshold and the second ratio is greater than or equal to the second threshold, the terminal determines that the reference characteristic field corresponding to the jth first characteristic field is the jth first characteristic field.
Specifically, for the 2 nd first feature field, since the first ratio 50% is smaller than the first threshold 70% and the second ratio 75% is larger than the second threshold 70%, it is determined that the reference feature field corresponding to the 2 nd first feature field is the 1 st feature field itself, and is 1001. That is, the reserved field 2 is dynamic, that is, the field content of the 2 nd first characteristic field of the received signaling information is originally changed, and it can be considered that any received field content is reasonable.
Specifically, if the content of the 1 st first characteristic field in the signaling information is the same as the content of the reference field corresponding to the 1 st first characteristic field, and the content of the 2 nd first characteristic field is the same as the content of the reference field corresponding to the 2 nd first characteristic field, until the content of the mth first characteristic field is also the same as the content of the reference field corresponding to the mth first characteristic field, the terminal determines that the signaling information is legal signaling information, otherwise, the signaling information is illegal signaling information.
Illustratively, the content 000 of the 1 st characteristic field of the signaling information is the same as the content 000 of the reference field corresponding to the 1 st characteristic field, and the content 1001 of the 1 st characteristic field is the same as the content 1001 of the reference field corresponding to the 2 nd characteristic field, so the signaling information 01010000110011001 is legal.
In other embodiments of the present invention, as shown in fig. 6, after the terminal performs step 308a3, the terminal may further continue to select and perform the following steps according to the magnitude relationship between the first ratio and the first threshold and the magnitude relationship between the second ratio and the second threshold:
step 308a6, if the first ratio is smaller than the first threshold and the second ratio is smaller than the second threshold, the terminal obtains the second sample signaling information based on the signaling identifier.
Specifically, the second sample signaling information may be the signaling information that is currently received and has the same signaling identifier as the first sample signaling information, or may be the signaling information that is stored before the currently stored N pieces of sample signaling information of the first sample signaling information. It should be noted that, if the second sample signaling information is the signaling information stored before the currently stored N sample signaling information of the first sample signaling information, the N sample signaling information in the first sample signaling information is obtained from near to far according to the receiving time from the time when the signaling information is received. The number of the sample signaling information in the second sample signaling information may be 1 or more.
And if the first ratio is smaller than the first threshold and the second ratio is smaller than the second threshold, the signaling information is used as second sample signaling information by default, and the currently received signaling information is legal.
Step 308a7, the terminal adds the second sample signaling information to the first sample signaling information to obtain the third sample signaling information.
Specifically, the number of sample signaling information in the third sample signaling information is N + 1.
And step 308a8, the terminal preprocesses the third sample information to obtain a second field set.
And step 308a9, the terminal counts the characteristic fields in the second field set to obtain a field subset.
Wherein the field subset includes M groups, and each group includes a plurality of fourth characteristic fields.
In step 308a10, the terminal performs statistical analysis on the fourth feature fields included in each group to obtain a first ratio and a second ratio corresponding to each group.
Step 308a11, if at least one group of the first ratios is smaller than the first threshold and the second ratios are smaller than the second threshold, the terminal obtains the fourth sample signaling information based on the signaling identifier and adds the fourth sample signaling information to the third sample signaling information until the reference feature field is determined.
Specifically, the number of the sample signaling information in the fourth sample signaling information may be the same as the number of the sample signaling information in the second sample signaling information, or may be increased according to a certain rule. Preferably, the number of sample signaling information in the fourth sample signaling information may be the same as the number of sample signaling information in the second sample signaling information.
In other embodiments of the present invention, as shown in fig. 7, after the terminal performs step 304, the terminal may further continue to perform step 310:
and step 310, the terminal updates the first sample signaling information based on the signaling information.
Specifically, the terminal stores the signaling information into the first sample signaling information no matter whether the signaling information is legal or not.
In order to keep the number of first sample signaling information N, the oldest stored sample signaling information may be deleted.
In other embodiments of the present invention, the first sample signaling information may be each characteristic field of each sample signaling information, and when the first sample signaling information is updated, M pieces of first characteristic information of the signaling information may be updated into the first sample signaling information.
It should be noted that, after the first sample signaling information is updated, the reference characteristic field of the jth first characteristic field of the signaling information is continuously changed.
It should be noted that, for the explanation of the same steps or concepts in the present embodiment as in the other embodiments, reference may be made to the description in the other embodiments, and details are not described here.
The detection method provided by the embodiment of the invention comprises the steps of firstly receiving signaling information sent by a network side, after determining a signaling identifier of the signaling information, checking the signaling information, preprocessing the signaling information after the signaling information passes the checking to obtain a first characteristic field of the signaling information, then obtaining first sample signaling information based on the signaling identifier, obtaining a reference characteristic field based on the first sample signaling information, and finally determining whether the signaling information is legal signaling information based on the reference characteristic field and the first characteristic field. Therefore, the terminal further checks the signaling information passing the checking to determine whether the signaling information is legal signaling information, the problem that the terminal cannot be well compatible with the network corresponding to the new version protocol in the related technology is solved, the terminal can be compatible with the network corresponding to the new version protocol, the checking error rate of the signaling information sent by the network side is reduced, and the terminal can be effectively registered to the network or can perform normal service function with the network.
An embodiment of the present invention provides a terminal 4, which can be applied to the detection method provided in the embodiments corresponding to fig. 1-2, 4, and 6-7, and as shown in fig. 8, the terminal includes: a processor 41, a memory 42, and a communication bus 43, wherein:
the communication bus 43 is used for realizing connection communication between the processor 41 and the memory 42;
the processor 41 is configured to execute the detection program stored in the memory 42 to implement the following steps:
receiving signaling information sent by a network side, and determining a signaling identifier of the signaling information;
checking the signaling information, and preprocessing the signaling information after the signaling information passes the checking to obtain a first characteristic field of the signaling information;
acquiring first sample signaling information based on the signaling identifier, and acquiring a reference characteristic field based on the first sample signaling information;
and determining whether the signaling information is legal signaling information or not based on the reference characteristic field and the first characteristic field.
In other embodiments of the present invention, processor 41 is further configured to execute the detection program to implement the following steps:
checking signaling information by adopting a preset checking algorithm;
if the signaling information passes the verification, decoding the signaling information, and determining fields which cannot be decoded and/or do not need to be decoded to obtain fields to be processed;
processing the fields to be processed to obtain M first characteristic fields; wherein M is a positive integer.
In other embodiments of the present invention, processor 41 is further configured to execute the detection program to implement the following steps:
and determining each continuous bit field in the fields to be processed to obtain M first characteristic fields.
In other embodiments of the present invention, processor 41 is further configured to execute the detection program to implement the following steps:
acquiring first sample signaling information based on the signaling identifier, and determining the number of samples of the first sample signaling information;
if the number of the samples is the preset number N, preprocessing the first sample signaling information to obtain a first field set; wherein N is a positive integer;
counting the characteristic fields in the first field set to obtain M reference characteristic fields;
and if the content of each first characteristic field is the same as the content of the reference characteristic field corresponding to each first characteristic field, determining the signaling information as legal signaling information.
In other embodiments of the present invention, processor 41 is further configured to execute the detection program to implement the following steps:
acquiring N characteristic fields corresponding to the bits of the jth first characteristic field one by one from the first field set to obtain N second characteristic fields; wherein j is a positive integer and j is less than or equal to M;
performing statistical analysis on the characteristic fields in the N second characteristic fields to obtain a reference characteristic field corresponding to the jth first characteristic field; wherein, the M reference characteristic fields comprise reference characteristic fields obtained by taking j from 1 to M.
In other embodiments of the present invention, processor 41 is further configured to execute the detection program to implement the following steps:
counting the characteristic fields with the most quantity and the same field content in the N second characteristic fields to obtain third characteristic fields;
determining the number of the third characteristic fields to obtain a first number, and calculating the ratio between the first number and N to obtain a first ratio;
counting the number of different characteristic fields in the N second characteristic fields to obtain a second number, and calculating the ratio between the second number and N to obtain a second ratio;
and if the first ratio is greater than or equal to the first threshold and the second ratio is smaller than the second threshold, determining the reference characteristic field corresponding to the jth first characteristic field as a third characteristic field.
In other embodiments of the present invention, processor 41 is further configured to execute the detection program to implement the following steps:
and if the first ratio is smaller than the first threshold and the second ratio is larger than or equal to the second threshold, determining the reference characteristic field corresponding to the jth first characteristic field as the jth first characteristic field.
In other embodiments of the present invention, processor 41 is further configured to execute the detection program to implement the following steps:
if the first ratio is smaller than the first threshold and the second ratio is smaller than the second threshold, acquiring second sample signaling information based on the signaling identifier;
adding the second sample signaling information to the first sample signaling information to obtain third sample signaling information;
preprocessing the third sample information to obtain a second field set;
counting the characteristic fields in the second field set to obtain a field subset; the field subset comprises M groups, and each group comprises a plurality of fourth characteristic fields;
performing statistical analysis on the fourth characteristic fields included in each group to obtain a first ratio and a second ratio corresponding to each group;
and if the at least one group of first ratios is smaller than the first threshold and the second ratios are smaller than the second threshold, obtaining fourth sample signaling information based on the signaling identification and adding the fourth sample signaling information to the third sample signaling information until the reference characteristic field is determined.
In other embodiments of the present invention, processor 41 is further configured to execute the detection program to implement the following steps:
and if the content of each first characteristic field is the same as the content of the reference characteristic field corresponding to each first characteristic field, determining the signaling information as legal signaling information.
In other embodiments of the present invention, after checking the signaling information and processing the signaling information after the signaling information passes the checking to obtain the first characteristic field of the signaling information, the processor 41 is further configured to execute a detection procedure to implement the following steps:
the first sample signaling information is updated based on the signaling information.
It should be noted that, the interaction process between the steps implemented by the processor in this embodiment may refer to the interaction process in the embodiments corresponding to fig. 1-2, 4, and 6-7, and is not described herein again.
The terminal provided by the embodiment of the invention firstly receives signaling information sent by a network side, determines a signaling identifier of the signaling information, then verifies the signaling information, preprocesses the signaling information after the signaling information passes the verification to obtain a first characteristic field of the signaling information, then obtains first sample signaling information based on the signaling identifier, obtains a reference characteristic field based on the first sample signaling information, and finally determines whether the signaling information is legal signaling information based on the reference characteristic field and the first characteristic field. Therefore, the terminal further checks the signaling information passing the checking to determine whether the signaling information is legal signaling information, the problem that the terminal cannot be well compatible with the network corresponding to the new version protocol in the related technology is solved, the terminal can be compatible with the network corresponding to the new version protocol, the checking error rate of the signaling information sent by the network side is reduced, and the terminal can be effectively registered to the network or can perform normal service function with the network.
Based on the foregoing embodiments, the present invention provides a computer-readable storage medium having a detection program stored thereon, the computer-readable storage medium having one or more detection programs stored thereon, the one or more detection programs being executable by one or more processors to implement the steps of:
receiving signaling information sent by a network side, and determining a signaling identifier of the signaling information;
checking the signaling information, and preprocessing the signaling information after the signaling information passes the checking to obtain a first characteristic field of the signaling information;
acquiring first sample signaling information based on the signaling identifier, and acquiring a reference characteristic field based on the first sample signaling information;
and determining whether the signaling information is legal signaling information or not based on the reference characteristic field and the first characteristic field.
In other embodiments of the present invention, checking signaling information, and after the signaling information is checked, preprocessing the signaling information to obtain a first characteristic field of the signaling information, includes:
checking signaling information by adopting a preset checking algorithm;
if the signaling information passes the verification, decoding the signaling information, and determining fields which cannot be decoded and/or do not need to be decoded to obtain fields to be processed;
processing the fields to be processed to obtain M first characteristic fields; wherein M is a positive integer.
In other embodiments of the present invention, processing the field to be processed to obtain M first feature fields includes:
and determining each continuous bit field in the fields to be processed to obtain M first characteristic fields.
In other embodiments of the present invention, obtaining the first sample signaling information based on the signaling identifier, and obtaining the reference feature field based on the first sample signaling information includes:
acquiring first sample signaling information based on the signaling identifier, and determining the number of samples of the first sample signaling information;
if the number of the samples is the preset number N, preprocessing the first sample signaling information to obtain a first field set; wherein N is a positive integer;
and counting the characteristic fields in the first field set to obtain M reference characteristic fields.
In other embodiments of the present invention, performing statistics on the feature fields in the first field set to obtain M reference feature fields includes:
acquiring N characteristic fields corresponding to the bits of the jth first characteristic field one by one from the first field set to obtain N second characteristic fields; wherein j is a positive integer and j is less than or equal to M;
and carrying out statistical analysis on the characteristic fields in the N second characteristic fields to obtain a reference characteristic field corresponding to the jth first characteristic field.
In other embodiments of the present invention, performing statistical analysis on the feature fields in the N second feature fields to obtain a reference feature field corresponding to the jth first feature field includes:
counting the characteristic fields with the most quantity and the same field content in the N second characteristic fields to obtain third characteristic fields;
determining the number of the third characteristic fields to obtain a first number, and calculating the ratio between the first number and N to obtain a first ratio;
counting the number of different characteristic fields in the N second characteristic fields to obtain a second number, and calculating the ratio between the second number and N to obtain a second ratio;
and if the first ratio is greater than or equal to the first threshold and the second ratio is smaller than the second threshold, determining the reference characteristic field corresponding to the jth first characteristic field as a third characteristic field.
In other embodiments of the present invention, the processor further performs the steps of:
and if the first ratio is smaller than the first threshold and the second ratio is larger than or equal to the second threshold, determining the reference characteristic field corresponding to the jth first characteristic field as the jth first characteristic field.
In other embodiments of the present invention, the processor further performs the steps of:
if the first ratio is smaller than the first threshold and the second ratio is smaller than the second threshold, acquiring second sample signaling information based on the signaling identifier;
adding the second sample signaling information to the first sample signaling information to obtain third sample signaling information;
preprocessing the third sample information to obtain a second field set;
carrying out statistical analysis on the characteristic fields in the second field set to obtain a field subset; the field subset comprises M groups, and each group comprises a plurality of fourth characteristic fields;
performing statistical analysis on the fourth characteristic fields included in each group to obtain a first ratio and a second ratio corresponding to each group;
and if the at least one group of first ratios is smaller than the first threshold and the second ratios are smaller than the second threshold, obtaining fourth sample signaling information based on the signaling identification and adding the fourth sample signaling information to the third sample signaling information until the reference characteristic field is determined.
In other embodiments of the present invention, determining whether the signaling information is legal signaling information based on the reference characteristic field and the first characteristic field includes:
and if the content of each first characteristic field is the same as the content of the reference characteristic field corresponding to each first characteristic field, determining the signaling information as legal signaling information.
In other embodiments of the present invention, after checking the signaling information and processing the signaling information after the signaling information passes the check to obtain the first characteristic field of the signaling information, the method further includes:
the first sample signaling information is updated based on the signaling information.
It should be noted that, the interaction process between the steps implemented by the processor in this embodiment may refer to the interaction process in the embodiments corresponding to fig. 1-2, 4, and 6-7, and is not described herein again.
It will be understood by those of ordinary skill in the art that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units in the above description and not necessarily corresponds to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical components in cooperation. Some or all of the components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software can be distributed on computer-readable media, which can include computer storage media (or non-transitory media) or communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, Random Access Memory (RAM), Read-Only Memory (ROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), flash Memory or other Memory technology, Compact Disc Read-Only Memory (CD-ROM), Digital Versatile Discs (DVD) or other optical Disc storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. 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 messages. These computer program messages may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the messages executed by the processor of the computer or other programmable data processing apparatus produce means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program messages may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the messages stored in the computer-readable memory produce an article of manufacture including message means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program messages may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the messages that execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (19)
1. A method of detection, the method comprising:
receiving signaling information sent by a network side, and determining a signaling identifier of the signaling information;
checking the signaling information, and preprocessing the signaling information after the signaling information is checked to obtain a first characteristic field of the signaling information;
acquiring first sample signaling information based on the signaling identifier, and acquiring a reference characteristic field based on the first sample signaling information;
and determining whether the signaling information is legal signaling information or not based on the reference characteristic field and the first characteristic field.
2. The method of claim 1, wherein the checking the signaling information and preprocessing the signaling information after the checking of the signaling information is passed to obtain a first characteristic field of the signaling information comprises:
checking the signaling information by adopting a preset checking algorithm;
if the signaling information passes the verification, decoding the signaling information, and determining fields which cannot be decoded and/or do not need to be decoded to obtain fields to be processed;
processing the fields to be processed to obtain M first characteristic fields; wherein M is a positive integer.
3. The method according to claim 2, wherein said processing the field to be processed to obtain M first feature fields comprises:
and determining each continuous bit field in the fields to be processed to obtain M first characteristic fields.
4. The method according to claim 2 or 3, wherein the obtaining first sample signaling information based on the signaling identifier and obtaining a reference feature field based on the first sample signaling information comprises:
acquiring first sample signaling information based on the signaling identifier, and determining the number of samples of the first sample signaling information;
if the number of the samples is a preset number N, preprocessing the first sample signaling information to obtain a first field set; wherein N is a positive integer;
and counting the characteristic fields in the first field set to obtain M reference characteristic fields.
5. The method of claim 4, wherein the counting the feature fields in the first field set to obtain M reference feature fields comprises:
acquiring N characteristic fields corresponding to the bits of the jth first characteristic field one by one from the first field set to obtain N second characteristic fields; wherein j is a positive integer and j is less than or equal to M;
performing statistical analysis on the characteristic fields in the N second characteristic fields to obtain a reference characteristic field corresponding to the jth first characteristic field; wherein, the M reference characteristic fields comprise reference characteristic fields obtained by taking j from 1 to M.
6. The method according to claim 5, wherein the performing statistical analysis on the feature fields in the N second feature fields to obtain the reference feature field corresponding to the jth first feature field comprises:
counting the most-numerous and same characteristic fields in the N second characteristic fields to obtain a third characteristic field;
determining the number of the third characteristic fields to obtain a first number, and calculating a ratio between the first number and N to obtain a first ratio;
counting the number of different characteristic fields in the N second characteristic fields to obtain a second number, and calculating the ratio of the second number to N to obtain a second ratio;
and if the first ratio is greater than or equal to a first threshold and the second ratio is smaller than a second threshold, determining the reference characteristic field corresponding to the jth first characteristic field as the third characteristic field.
7. The method of claim 6, further comprising:
and if the first ratio is smaller than the first threshold and the second ratio is larger than or equal to the second threshold, determining the reference characteristic field corresponding to the jth first characteristic field as the jth first characteristic field.
8. The method of claim 6, further comprising:
if the first ratio is smaller than the first threshold and the second ratio is smaller than the second threshold, second sample signaling information is obtained based on the signaling identification;
adding the second sample signaling information to the first sample signaling information to obtain third sample signaling information;
performing the preprocessing on the third sample information to obtain a second field set;
counting the characteristic fields in the second field set to obtain a field subset; wherein the field subset comprises M groups, each group comprising a plurality of fourth characteristic fields;
performing statistical analysis on the fourth characteristic fields included in each group to obtain a first ratio and a second ratio corresponding to each group;
and if at least one group of first ratios is smaller than the first threshold and second ratios are smaller than the second threshold, obtaining fourth sample signaling information based on the signaling identification and adding the fourth sample signaling information to the third sample signaling information until the reference characteristic field is determined.
9. The method according to any of claims 1-3 and 5-8, wherein the determining whether the signaling information is legal signaling information based on the reference characteristic field and the first characteristic field comprises:
and if the content of each first characteristic field is the same as the content of the reference characteristic field corresponding to each first characteristic field, determining that the signaling information is legal signaling information.
10. The method according to any one of claims 1 to 3 and 5 to 8, wherein the verifying the signaling information and processing the signaling information after the signaling information is verified to obtain the first characteristic field of the signaling information further comprises:
updating the first sample signaling information based on the signaling information.
11. A terminal, characterized in that the terminal comprises: a processor, a memory, and a communication bus; wherein:
the communication bus is used for realizing connection communication between the processor and the memory;
the processor is used for executing the detection program stored in the memory to realize the following steps:
receiving signaling information sent by a network side, and determining a signaling identifier of the signaling information;
checking the signaling information, and preprocessing the signaling information after the signaling information is checked to obtain a first characteristic field of the signaling information;
acquiring first sample signaling information based on the signaling identifier, and acquiring a reference characteristic field based on the first sample signaling information;
and determining whether the signaling information is legal signaling information or not based on the reference characteristic field and the first characteristic field.
12. The terminal of claim 11, wherein the processor is further configured to execute the detection program to perform the following steps:
checking the signaling information by adopting a preset checking algorithm;
if the signaling information passes the verification, decoding the signaling information, and determining fields which cannot be decoded and/or do not need to be decoded to obtain fields to be processed;
processing the fields to be processed to obtain M first characteristic fields; wherein M is a positive integer.
13. The terminal of claim 12, wherein the processor is further configured to execute the detection program to perform the following steps:
acquiring first sample signaling information based on the signaling identifier, and determining the number of samples of the first sample signaling information;
if the number of the samples is a preset number N, preprocessing the first sample signaling information to obtain a first field set; wherein N is a positive integer;
and counting the characteristic fields in the first field set to obtain M reference characteristic fields.
14. The terminal of claim 13, wherein the processor is further configured to execute the detection program to perform the following steps:
acquiring N characteristic fields corresponding to the bits of the jth first characteristic field one by one from the first field set to obtain N second characteristic fields; wherein j is a positive integer and j is less than or equal to M;
performing statistical analysis on the characteristic fields in the N second characteristic fields to obtain a reference characteristic field corresponding to the jth first characteristic field; wherein, the M reference characteristic fields comprise reference characteristic fields obtained by taking j from 1 to M.
15. The terminal of claim 14, wherein the processor is further configured to execute the detection program to perform the following steps:
counting the most-numerous characteristic fields with the same field content in the N second characteristic fields to obtain a third characteristic field;
determining the number of the third characteristic fields to obtain a first number, and calculating a ratio between the first number and N to obtain a first ratio;
counting the number of different characteristic fields in the N second characteristic fields to obtain a second number, and calculating the ratio of the second number to N to obtain a second ratio;
and if the first ratio is greater than or equal to a first threshold and the second ratio is smaller than a second threshold, determining the reference characteristic field corresponding to the jth first characteristic field as the third characteristic field.
16. The terminal of claim 15, wherein the processor is further configured to execute the detection program to perform the following steps:
and if the first ratio is smaller than the first threshold and the second ratio is larger than or equal to the second threshold, determining the reference characteristic field corresponding to the jth first characteristic field as the jth first characteristic field.
17. The terminal of claim 15, wherein the processor is further configured to execute the detection program to perform the following steps:
if the first ratio is smaller than the first threshold and the second ratio is smaller than the second threshold, second sample signaling information is obtained based on the signaling identification;
adding the second sample signaling information to the first sample signaling information to obtain third sample signaling information;
performing the preprocessing on the third sample information to obtain a second field set;
counting the characteristic fields in the second field set to obtain a field set; wherein the field set comprises M groups, and each group comprises a plurality of fourth characteristic fields;
performing statistical analysis on the fourth characteristic fields included in each group to obtain a first ratio and a second ratio corresponding to each group;
and if at least one group of first ratios is smaller than the first threshold and second ratios are smaller than the second threshold, obtaining fourth sample signaling information based on the signaling identification and adding the fourth sample signaling information to the third sample signaling information until the reference characteristic field is determined.
18. A terminal according to any of claims 10-17, wherein the processor is further configured to execute the detection procedure to perform the steps of:
and if the content of each first characteristic field is the same as the content of the reference characteristic field corresponding to each first characteristic field, determining that the signaling information is legal signaling information.
19. A computer-readable storage medium, having a detection program stored thereon, which, when executed by a processor, implements the steps of the detection method according to any one of claims 1 to 10.
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