WO2017206455A1

WO2017206455A1 - Method for identifying pseudo base station, and terminal

Info

Publication number: WO2017206455A1
Application number: PCT/CN2016/107894
Authority: WO
Inventors: 周鹏
Original assignee: 宇龙计算机通信科技(深圳)有限公司
Priority date: 2016-05-31
Filing date: 2016-11-30
Publication date: 2017-12-07
Also published as: CN105873067A

Abstract

Provided are a method for identifying a pseudo base station, and a terminal. The method comprises the following steps: receiving a system message SI3 of a target cell; acquiring a system parameter of the target cell according to the SI3; comparing a value of the system parameter with a normal value, and grading the target cell according to a comparison result so as to obtain a graded score; and determining whether a base station corresponding to the target cell is a pseudo base station according to the graded score. The technical solution provided in the present invention has the advantage of high accuracy of identifying a pseudo base station.

Description

Method and terminal for identifying pseudo base station

The present application claims priority to Chinese Patent Application No. 201610377, filed on May 31, 2016, the entire disclosure of which is hereby incorporated by reference. in.

Technical field

The present invention relates to the field of electronics and communications, and in particular, to a method and terminal for identifying a pseudo base station.

Background technique

Because the global mobile communication system (English full name: Global System for Mobile Communication, English abbreviation: GSM) has the defect of one-way authentication, that is, only the network authenticates the terminal, the terminal cannot identify the legitimacy of the network identity, and then in real life There is a concept of a pseudo base station, which is pretending to be a public mobile communication carrier base station, and absorbing a certain range of end users by modifying part of the system parameters and increasing its own transmission power, when the terminal user successfully camps on the pseudo base station. After the pseudo cell is located, the identity information of the terminal user is obtained through the registration process, and then the large-capacity illegal information is transmitted, thereby obtaining illegal profits. The emergence of pseudo base stations has brought harm to mobile phone users, operators, and even countries. Therefore, how to detect and filter pseudo base stations becomes the focus of the terminal security strategy. The harm caused by the pseudo base station: illegally occupying spectrum resources; obtaining mobile phone user information, sending a large amount of fraud or spam messages; interrupting normal communication of mobile phone users within a limited time.

In the solution of the prior art, the following technical problems are found in the prior art:

The terminal in the prior art cannot effectively identify the pseudo base station, which affects the security of the mobile phone to a certain extent, so its security is low.

Summary of the invention

A method for identifying a pseudo base station is provided. The method for identifying the pseudo base station is based on acquiring a target cell system parameter, and scoring the target cell according to the system parameter to identify a pseudo base station, so that the pseudo base station is easy to identify. advantage.

In one aspect, a method of identifying a pseudo base station is provided, the method comprising the steps of:

Receiving a system message SI3 of the target cell, acquiring system parameters of the target cell according to the SI3;

Comparing the value of the system parameter with a normal value, and scoring the target cell according to the comparison result to obtain a score score;

Determining, according to the score score, whether the base station corresponding to the target cell is a pseudo base station.

Optionally, the determining, according to the score score, whether the base station corresponding to the target cell is a pseudo base station, specifically includes:

When the score score is higher than the high score threshold, it is determined that the base station corresponding to the target cell is a pseudo base station.

Optionally, the method further includes: before determining, according to the score, whether the base station corresponding to the target cell is a pseudo base station,

Comparing the target cell power value with the power value of the serving cell and the neighboring cell of the serving cell, when the power value of the target cell is a maximum value, increasing the score score, when the power value of the target cell is not the maximum When the value is used, the score score is reduced.

Optionally, the method further includes: before determining, according to the score score, whether the base station corresponding to the target cell is a pseudo base station,

And calculating a difference between the target cell location difference code and the serving cell location difference code, and if the difference is greater than the difference threshold, increasing the score score.

Optionally, the method further includes:

When the base station corresponding to the target cell is a pseudo base station, it is determined that the target cell is a pseudo cell, does not reside, and performs the following operations according to the type of the target cell:

When the target cell is a serving cell, the system information database is not updated, the current cell is isolated, and cell reselection is triggered;

When the target cell is to be determined, the frequency of the target cell is marked as a pseudo cell, the system information is not saved, the list of forbidden cells is added, and the cell re-search is triggered;

When the target cell is a neighboring cell, marking the target cell as a pseudo cell, skipping the target cell, and continuing to determine the next candidate neighboring cell;

When the target cell is an application cell, the target cell information is not saved, the target cell broadcast control channel is set to be invalid, and the next cell is continuously searched.

A second aspect provides a terminal, where the terminal includes a transceiver unit and a processing unit;

a transceiver unit, configured to receive a system message SI3 of the target cell;

a processing unit, configured to acquire a system parameter of the target cell according to the SI3, compare a value of the system parameter with a normal value, and score the target cell according to the comparison result to obtain a score score; Determining whether the base station corresponding to the target cell is a pseudo base station.

Optionally, the processing unit is further configured to: when the score score is higher than a high score threshold, determine that the base station corresponding to the target cell is a pseudo base station.

Optionally, the processing unit is further configured to compare the power value of the target cell with a power value of a serving cell and a neighboring cell of the serving cell, and when the power value of the target cell is a maximum value, the score is scored. Increasing, when the power value of the target cell is not the maximum value, the score score is decreased.

Optionally, the processing unit is further configured to calculate a difference between the target cell location difference code and the serving cell location difference code, and if the difference is greater than the difference threshold, increase the score score.

Optionally, the processing unit is further configured to: when the base station corresponding to the target cell is a pseudo base station, determine that the target cell is a pseudo cell, does not camp, and perform the following operations according to the type of the target cell:

Obtaining the system parameter of the target cell according to the technical solution provided by each embodiment, and then scoring the target cell according to the result of comparing the system parameter value with the normal, and then determining, according to the score, whether the base station is a pseudo base station, so The terminal device automatically determines whether the base station of the target cell is a pseudo base station, and uses the system parameter value to determine whether the pseudo base station has the advantage that the pseudo base station has high recognition accuracy.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

1 is a flowchart of a method for identifying a pseudo base station according to a first preferred embodiment of the present invention;

2 is a flowchart of a UI reminding method according to a first preferred embodiment of the present invention;

3 is a flowchart of a method for identifying a pseudo base station according to a second preferred embodiment of the present invention;

4 is a flowchart of a method for identifying a pseudo base station according to a third preferred embodiment of the present invention.

FIG. 5 is a schematic structural diagram of a mobile terminal according to a fourth preferred embodiment of the present invention; FIG.

FIG. 6 is a schematic diagram of prompt information provided by a specific embodiment of the present invention.

FIG. 7 is a schematic structural diagram of a mobile terminal according to a fifth preferred embodiment of the present invention.

detailed description

Before discussing the exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as a process or method depicted as a flowchart. Although the flowcharts describe various operations as a sequential process, many of the operations can be implemented in parallel, concurrently or concurrently. In addition, the order of operations can be rearranged. The process may be terminated when its operation is completed, but may also have additional steps not included in the figures. The processing may correspond to methods, functions, procedures, subroutines, subroutines, and the like.

By "computer device", also referred to as "computer" in the context, is meant an intelligent electronic device that can perform predetermined processing, such as numerical calculations and/or logical calculations, by running a predetermined program or instruction, which can include a processor and The memory is executed by the processor to execute a predetermined process pre-stored in the memory to execute a predetermined process, or is executed by hardware such as an ASIC, an FPGA, a DSP, or the like, or a combination of the two. Computer devices include, but are not limited to, servers, personal computers, notebook computers, tablets, smart phones, and the like.

The methods discussed below, some of which are illustrated by flowcharts, can be implemented in hardware, software, firmware, middleware, microcode, hardware description languages, or any combination thereof. When implemented in software, firmware, middleware or microcode, the program code or code segments to carry out the necessary tasks can be stored in a machine or computer readable medium, such as a storage medium. The processor(s) can perform the necessary tasks.

The specific structural and functional details disclosed are merely representative and are for the purpose of describing exemplary embodiments of the invention. The present invention may, however, be embodied in many alternative forms and should not be construed as being limited only to the embodiments set forth herein.

It should be understood that although the terms "first," "second," etc. may be used herein to describe the various elements, these elements should not be limited by these terms. These terms are used only to distinguish one unit from another. For example, a first unit could be termed a second unit, and similarly a second unit could be termed a first unit, without departing from the scope of the exemplary embodiments. The term "and/or" used herein includes any and all combinations of one or more of the associated listed items.

The terminology used herein is for the purpose of describing the particular embodiments, The singular forms "a", "an", It is also to be understood that the terms "comprising" and """ Other features, integers, steps, operations, units, components, and/or combinations thereof.

It should also be noted that, in some alternative implementations, the functions/acts noted may occur in a different order than that illustrated in the drawings. For example, two figures shown in succession may in fact be executed substantially concurrently or sometimes in the reverse order, depending on the function/acts involved.

Referring to FIG. 1, FIG. 1 is a method for identifying a pseudo base station according to a first preferred embodiment of the present invention. The method is implemented by a mobile terminal. The method is as shown in FIG.

Step S101: Receive a system message SI3 of a target cell,

For the specific meaning and definition of SI3 in the above step S101, refer to the provisions of the GSM protocol. For details, refer to the provisions in 3GPP TS44.018.

Step S102: Obtain system parameters of the target cell according to the SI3.

The system parameters in the above step S102 can be as shown in Table 1. Table 1 is a system parameter of a known pseudo base station.

Table 1:

系统参数System parameters	比较Comparison	评分score
LacLac	Lac=0;65534;65535Lac=0;65534;65535	55
rxlev_access_minRxlev_access_min	00	55
rxlev_access_minRxlev_access_min	<3<3	22
cell_resel_offsetCell_resel_offset	6363	55
cell_resel_offsetCell_resel_offset	>60>60	22
t3212 T3212	11	55
t3212T3212	<3<3	22
gprs_indGprs_ind	FALSEFALSE	55
si2q_indSi2q_ind	FALSEFALSE	55
Cell idCell id	1010	55

In the foregoing Table 1, the Lac may be a location distinguishing code, where the location distinguishing code is used to identify location information of the base station in the network, the rxlev_access_min may be a minimum access level, and the minimum access level identifies a signal strength of the base station. The cell_resel_offset may be a cell reselection threshold, indicating a minimum value of the reselected serving cell, t3212 may be a counter, which is used to count the location update, gprs_ind may be a data service, and si2q_ind may be a 3G or 4G zone. Relationship, Cell id represents the identity of the cell.

It should be noted that the present invention does not limit the specific values and specific types of the foregoing system parameters. The types of system parameters in Table 1 above may be increased or decreased according to different communication standards, and the present invention does not limit the specific types of the above system parameters. And specific values.

Step S103: Compare the value of the system parameter with a normal value, and score the target cell according to the comparison result to obtain a score score.

The implementation method of the foregoing step S103 may specifically be: determining the normal value of the system parameter, or taking the parameter of Table 1 as an example. For Lac, the normal value should be an integer between (0, 65534), if Lac is 0. When the three values are 65534, 65535, the probability that the base station of the serving cell is a pseudo base station is quite high, so the score of Table 1 is the highest score of 5 points of the item. Similarly, for rxlev_access_min, the normal value is generally A value greater than 5, so if the value of rxlev_access_min is smaller, as shown in Table 1, the higher the score, the higher the value of cell_resel_offset, which is generally between (0, 60). If it exceeds this range, it is the pseudo base station. The probability is very high. The normal value of t3212 is generally 5 or 6. If the other values are different, the higher the score, the easier it is to be a pseudo base station. The normal value of gprs_ind is true. If it is FALSE, the easier it is. It is a pseudo base station, and the normal value for si2q_ind is true. If it is FALSE, the easier it is to be a pseudo base station.

The principle of setting the above score is based on the characteristics of the pseudo base station. For a pseudo base station, which belongs to a single base station, that is, it cannot communicate with the mobile communication network, the pseudo base station will not support the data service (ie, the Internet service), and the pseudo base station. It also does not support voice services, which belong to a single-send group spam message. The way to attract the terminal is mainly to adopt a method of increasing the transmission power to attract the terminal to camp on the pseudo base station, and pass these features. The invention analyzes a lot of pseudo base stations, and concludes that the pseudo base stations are identified by means of system parameters. It has been proved by practice that the pseudo base stations can be identified by the terminal equipment, which has good identification and timeliness, and identification. High accuracy.

Step S104: Determine, according to the score score, whether the base station corresponding to the target cell is a pseudo base station.

The implementation method of the foregoing step S104 may be specifically: if the score score is higher than the high score threshold, determining that the base station corresponding to the target cell is a pseudo base station.

The specific value of the high-score threshold may be set by the user. For example, the high-score threshold may be 30 points. Of course, 35 points or other values may be selected in practical applications.

The first preferred embodiment of the present invention acquires system parameters of the target cell, and then scores the target cell according to the result of comparing the system parameter value with the normal, and then determines whether the base station is a pseudo base station according to the score, so that it has The terminal device automatically determines whether the base station of the target cell is a pseudo base station, and the pseudo base station has the advantage of high accuracy.

Optionally, after the step S104, the foregoing method may further include:

If the base station corresponding to the target cell is a pseudo base station, it is determined that the target cell is a pseudo cell, does not reside, and performs the following operations according to the type of the target cell:

Operation A: The target cell is a serving cell, and the system information database is not updated, the current cell is barred, and cell reselection is triggered;

Operation B: the target cell is pending, and the frequency of the target cell is marked as a pseudo cell, and the system information is not saved, and the forbidden cell list is added to trigger the cell re-search;

Operation C, the target cell is a neighboring cell, marking the target cell as a pseudo cell, skipping the target cell, and continuing to determine the next candidate neighboring cell;

Operation D: The target cell is a candidate cell, does not save the target cell information, sets the target cell broadcast control channel invalid (BCCH invalid), and continues to search for the next cell.

Optionally, after the step S104, the foregoing method may further include:

After determining that the base station corresponding to the target cell is a pseudo base station, the system information of the pseudo base station is parsed and processed, and the reminder information is sent through the UI interface.

The way it is implemented is shown in Figure 2, including:

Step S201: After detecting the pseudo base station, the bottom layer of the mobile phone communication timely displays the pseudo base station information (currently, mainly provides an arfcn, a band, a cell ID, and a location area code (LAC). The information is reported to the upper layer of the mobile phone;

Step S202: After receiving the information, the upper layer of the mobile phone parses the data and saves it in the database fakebs_data according to the current system time (for example: 2016-03-21:arfcn();band().) and sends the message to the UI in a broadcast manner. ;

Step S203: After receiving the information, the UI prompts the bullet box (the bullet box disappears after the user needs to confirm, otherwise it exists, and can be saved in the drop-down menu), and the prompt is to be determined ("Respected user, currently detected 1 pseudo. Base station, we have filtered for you, please feel free to use"). The prompt is shown in Figure 6.

Referring to FIG. 3, FIG. 3 is a method for identifying a pseudo base station according to a second preferred embodiment of the present invention. The method is implemented by a mobile terminal. The method is as shown in FIG.

Step S301, receiving a system message SI3 of the target cell,

The specific meanings and definitions of the foregoing SI3 may be described in step S101, and are not described herein.

Step S302: Obtain system parameters of the target cell according to the SI3.

The system parameters in the above step S302 can be as shown in Table 1. Table 1 is a system parameter of a known pseudo base station.

Step S303, comparing the value of the system parameter with a normal value, and scoring the target cell according to the comparison result to obtain a score score;

The implementation method of the foregoing step S303 may specifically be: determining the normal value of the system parameter, or taking the parameter of Table 1 as an example. For Lac, the normal value should be an integer between (0, 65534), if Lac is 0. When the three values are 65534, 65535, the probability that the base station of the serving cell is a pseudo base station is quite high, so the score of Table 1 is the highest score of 5 points of the item. Similarly, for rxlev_access_min, the normal value is generally A value greater than 5, so if the value of rxlev_access_min is smaller, as shown in Table 1, the higher the score, the higher the value of cell_resel_offset, which is generally between (0, 60). If it exceeds this range, it is the pseudo base station. The probability is very high. The normal value of t3212 is generally 5 or 6. If the other values are different, the higher the score, the easier it is to be a pseudo base station. The normal value of gprs_ind is true. If it is FALSE, the easier it is. It is a pseudo base station, and the normal value for si2q_ind is true. If it is FALSE, the easier it is to be a pseudo base station.

The principle of setting the above score is based on the characteristics of the pseudo base station. For a pseudo base station, which belongs to a single base station, that is, it cannot communicate with the mobile communication network, the pseudo base station will not support the data service (ie, the Internet service), and the pseudo base station. It also does not support voice services, which belong to a single-send group spam message. The way to attract the terminal is mainly to adopt a method of increasing the transmission power to attract the terminal to camp on the pseudo base station, and pass these features. The invention analyzes a plurality of pseudo base stations, and concludes that the pseudo base stations are identified by means of system parameters, and it is proved by practice that the pseudo base stations can be identified by the terminal equipment, which has good identification and timeliness, and has High recognition accuracy.

Step S304: Comparing the target cell power value with the power value of the serving cell and the neighboring cell of the serving cell. If the power value of the target cell is the largest, the score score is increased. If the power value of the target cell is not the largest, the score is reduced. .

The implementation method may be, for example, that the power value of the target cell is 200 W, the serving cell is 45 W, and the neighboring cells are: 35 W and 30 W, then the power value of the target cell is determined to be the largest, and the score score of step S303 is increased.

It should be noted that the power value of the above-mentioned cell may vary according to its location, but the range of variation is not large.

Step S305: Determine, according to the score score, whether the base station corresponding to the target cell is a pseudo base station.

The implementation method of the foregoing step S305 may be specifically: if the score score is higher than the high score threshold, determining that the base station corresponding to the target cell is a pseudo base station.

For the specific value of the above high score threshold, refer to the description of the first preferred embodiment of the present invention.

The second preferred embodiment of the present invention acquires system parameters of the target cell, and then scores the target cell according to the result of comparing the system parameter value with the normal, and then adjusts the score according to the power value of the target cell, and then It is judged whether the base station is a pseudo base station according to the score, so it has the advantage that the terminal station automatically determines whether the base station of the target cell is a pseudo base station, and the pseudo base station has high recognition accuracy.

Optionally, after the step S304, the foregoing method may further include:

In operation B, the target cell is pending, and the target cell frequency is marked as a pseudo cell, and the system information is not saved, and the forbidden cell list is added to trigger the cell re-search;

The second preferred embodiment of the present invention is set up because the power value of the pseudo base station is generally the maximum power in the serving cell and the neighboring cell, and if the power is small, the terminal does not select the station. The pseudo base station, all of which can also improve the accuracy of the pseudo base station identification by scoring the power.

Referring to FIG. 4, FIG. 4 is a method for identifying a pseudo base station according to a third preferred embodiment of the present invention. The method is implemented by a mobile terminal. As shown in FIG. 4, the method includes the following steps:

Step S401: Receive a system message SI3 of the target cell,

Step S402: Obtain system parameters of the target cell according to the SI3.

The system parameters in the above step S402 can be as shown in Table 1. Table 1 is a system parameter of a known pseudo base station.

Step S403, comparing the value of the system parameter with a normal value, and scoring the target cell according to the comparison result;

The implementation method of the foregoing step S403 may specifically be: determining the normal value of the system parameter, or taking the parameter of Table 1 as an example. For Lac, the normal value should be an integer between (0, 65534), if Lac is 0. When the three values are 65534, 65535, the probability that the base station of the serving cell is a pseudo base station is quite high, so the score of Table 1 is the highest score of 5 points of the item. Similarly, for rxlev_access_min, the normal value is generally A value greater than 5, so if the value of rxlev_access_min is smaller, as shown in Table 1, the higher the score, the higher the value of cell_resel_offset, which is generally between (0, 60). If it exceeds this range, it is the pseudo base station. The probability is very high. The normal value of t3212 is generally 5 or 6. If the other values are different, the higher the score, the easier it is to be a pseudo base station. The normal value of gprs_ind is true. If it is FALSE, the easier it is. It is a pseudo base station, and the normal value for si2q_ind is true. If it is FALSE, the easier it is to be a pseudo base station.

Step S404: Calculate a difference between the target cell Lac and the serving cell Lac. If the difference is greater than the difference threshold, increase the score score.

The implementation method may be, for example, that the Lac value of the target cell is 1, and the Lac value of the serving cell is 10111, and the difference is 10110. Obviously, the Lac value of the target cell is significantly different from the value of the server cell, according to the Lac value. According to the principle of allocation, it is known that the values of two greatly different Lac are not set to the adjacent cell, so the probability that the target cell is a pseudo cell increases, so the score score increases. The difference threshold may be specifically 100, and may of course be set to 50, 60 or some other value in practical applications.

Step S405: Determine, according to the score score, whether the base station corresponding to the target cell is a pseudo base station.

The implementation method of the foregoing step S405 may specifically be: if the score score is higher than the high score threshold, determining that the base station corresponding to the target cell is a pseudo base station.

The third preferred embodiment of the present invention acquires system parameters of the target cell, and then scores the target cell according to the result of comparing the system parameter value with the normal, and then according to the difference between the location difference code of the target cell and the location code of the serving cell. The value is adjusted to the score score, and then the base station is determined to be a pseudo base station according to the score. Therefore, it has the advantage that the base station automatically determines whether the base station of the target cell is a pseudo base station, and the pseudo base station has high recognition accuracy.

Optionally, after the step S404, the foregoing method may further include:

The setting of the third preferred embodiment of the present invention is because the difference of Lac is not too large for a neighboring cell, and the difference with the Lac of the server base station is different for the pseudo base station because its mobility is generally strong. It may be very large. If the difference is too large, the probability of the pseudo base station is very high, so that we can identify the pseudo base station by increasing the set score, which has the advantage of high pseudo base station identification accuracy.

A fourth preferred embodiment of the present invention provides a terminal, which may specifically be: a mobile phone, a smart watch, a tablet computer, a personal digital assistant, etc., and the definition of the terminology and processing unit of the fourth preferred embodiment of the present invention For specific implementations, refer to the description of the first, second, and third preferred embodiments of the present invention, and details are not described herein. As shown in FIG. 5, the terminal includes: a transceiver unit 501 and a processing unit 502, where

The transceiver unit 501 is configured to receive a system message SI3 of the target cell;

For the specific structure of the SI3 message, refer to the description in step S101.

The processing unit 502 is configured to acquire the system parameter of the target cell according to the SI3, compare the value of the system parameter with a normal value, and score the target cell according to the comparison result to obtain a score score; The score determines whether the base station corresponding to the target cell is a pseudo base station.

Optionally, the processing unit 502 is further configured to: when the score score is higher than the high score threshold, determine that the base station corresponding to the target cell is a pseudo base station.

Optionally, the processing unit 502 is further configured to compare the target cell power value with a power value of the serving cell and a neighboring cell of the serving cell, and when the power value of the target cell is a maximum value, increase the score score. When the power value of the target cell is not the maximum value, the score score is reduced.

Optionally, the processing unit 502 is further configured to calculate a difference between the target cell location difference code and the serving cell location difference code, and if the difference is greater than the difference threshold, increase the score score.

Optionally, the processing unit 502 is further configured to: when the base station corresponding to the target cell is a pseudo base station, determine that the target cell is a pseudo cell, does not camp, and perform the following operations according to the type of the target cell:

When the target cell is an application cell, the target cell information is not saved, the target cell broadcast control channel is set to be invalid, and the next cell is continuously searched. It should be noted that the transceiver unit in the fourth preferred embodiment of the present invention may also be replaced by a transceiver. The processing unit may also be replaced by a processor. The processor may be one or more according to actual conditions.

As shown in FIG. 7, the terminal 70 in the embodiment of the present invention may be different types of electronic devices, such as: smart phones, tablet computers, handheld computers, and mobile Internet devices, personal digital assistants, media players, smart TVs, smart watches. , smart glasses, smart bracelets, etc. As shown in FIG. 7, the terminal 70 in the embodiment of the present invention includes: at least one processor 701, such as a CPU, at least one memory 702, and at least one transceiver 703. The processor 701, the memory 702, and the transceiver 703 are connected and communicated through a bus system. The memory 702 may be a high speed RAM memory or a non-volatile memory such as at least one disk memory.

The memory 702 stores program code, and the processor 701 can call the program code stored in the memory 702 to perform related functions through a bus system. For example, the various modules (e.g., the transceiving unit 501 and processing unit 502, etc.) described in FIG. 5 are program code stored in the memory 702 and executed by the processor 701 to implement the The function of each module is to implement a wireless local area network communication method.

Specifically, the processor 701: receives a system message SI3 of the target cell, acquires a system parameter of the target cell according to the SI3, compares a value of the system parameter with a normal value, and compares the value according to the comparison result. The target cell scores to obtain a score score; and according to the score score, it is determined whether the base station corresponding to the target cell is a pseudo base station.

Specifically, the processor 701: when the score score is higher than the high score threshold, determine that the base station corresponding to the target cell is a pseudo base station.

Specifically, the processor 701: comparing the target cell power value with the power value of the serving cell and the neighboring cell of the serving cell, and when the power value of the target cell is the maximum value, increasing the score score, When the power value of the target cell is not the maximum value, the score score is reduced.

Specifically, the processor 701: calculates a difference between the target cell location difference code and the serving cell location difference code, and if the difference is greater than the difference threshold, increases the score score.

Specifically, the processor 701: when the base station corresponding to the target cell is a pseudo base station, determining that the target cell is a pseudo cell, does not camp, and performing the following operations according to the type of the target cell: When the target cell is a serving cell, the system information database is not updated, the current cell is isolated, and cell reselection is triggered; when the target cell is to be determined, the frequency of the target cell is marked as a pseudo cell, and system information is not saved. Adding a forbidden cell list, triggering cell re-search; when the target cell is a neighboring cell, marking the target cell as a pseudo cell, skipping the target cell, and continuing to determine a next candidate neighboring cell; when the target cell is an application cell And not saving the target cell information, setting the target cell broadcast control channel to be invalid, and continuing to search for the next cell.

It should be noted that, for the foregoing method embodiments or embodiments, for the sake of simple description, they are all expressed as a series of action combinations, but those skilled in the art should understand that the present invention is not described. Limitations of the sequence of actions, as certain steps may be performed in other sequences or concurrently in accordance with the present invention. In the following, those skilled in the art should also understand that the embodiments or the embodiments described in the specification are all preferred embodiments, and the actions and units involved are not necessarily required by the present invention.

In the above embodiments, the descriptions of the various embodiments are different, and the details that are not detailed in a certain embodiment can be referred to the related descriptions of other embodiments.

The steps in the method of the embodiment of the present invention may be sequentially adjusted, merged, and deleted according to actual needs.

The units in the apparatus of the embodiment of the present invention may be combined, divided, and deleted according to actual needs. Those skilled in the art can combine or combine the different embodiments described in the specification and the features of the different embodiments.

Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented in hardware, firmware implementation, or a combination thereof. When implemented in software, the functions described above may be stored in or transmitted as one or more instructions or code on a computer readable medium. Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another. A storage medium may be any available media that can be accessed by a computer. For example, but not limited to, the computer readable medium may include a random access memory (RAM), a read-only memory (ROM), and an electrically erasable programmable read-only memory (Electrically Erasable Programmable). Read-Only Memory (EEPROM), Compact Disc Read-Only Memory (CD-ROM) or other optical disc storage, disk storage media or other magnetic storage devices, or can be used to carry or store an instruction or data structure. The desired program code and any other medium that can be accessed by the computer. Also. Any connection may suitably be a computer readable medium. For example, if the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), or wireless technologies such as infrared, radio, and microwave, Then coaxial cable, fiber optic cable, twisted pair, DSL or wireless technologies such as infrared, wireless and microwave are included in the fixing of the associated medium. As used in the present invention, a disk and a disc include a compact disc (CD), a laser disc, a compact disc, a digital versatile disc (DVD), a floppy disk, and a Blu-ray disc, wherein the disc is usually magnetically copied, and the disc is The laser is used to optically replicate the data. Combinations of the above should also be included within the scope of the computer readable media.

In summary, the above description is only a preferred embodiment of the technical solution of the present invention, and is not intended to limit the scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

A method for identifying a pseudo base station, the method comprising the steps of:

Receiving a system message SI3 of the target cell, acquiring system parameters of the target cell according to the SI3;

Comparing the value of the system parameter with a normal value, and scoring the target cell according to the comparison result to obtain a score score;

Determining, according to the score score, whether the base station corresponding to the target cell is a pseudo base station.
The method according to claim 1, wherein the determining, according to the score score, whether the base station corresponding to the target cell is a pseudo base station, specifically includes:

When the score score is higher than the high score threshold, it is determined that the base station corresponding to the target cell is a pseudo base station.
The method according to claim 2, wherein the method further comprises: before determining whether the base station corresponding to the target cell is a pseudo base station according to the score score, further comprising:

Comparing the target cell power value with the power value of the serving cell and the neighboring cell of the serving cell, when the power value of the target cell is a maximum value, increasing the score score, when the power value of the target cell is not the maximum When the value is used, the score score is reduced.
The method according to claim 2, wherein the method further comprises: before determining whether the base station corresponding to the target cell is a pseudo base station according to the score score:

And calculating a difference between the target cell location difference code and the serving cell location difference code, and if the difference is greater than the difference threshold, increasing the score score.
The method according to any one of claims 1 to 4, wherein the method further comprises:

When the base station corresponding to the target cell is a pseudo base station, it is determined that the target cell is a pseudo cell, does not reside, and performs the following operations according to the type of the target cell:

When the target cell is a serving cell, the system information database is not updated, the current cell is isolated, and cell reselection is triggered;

When the target cell is to be determined, the frequency of the target cell is marked as a pseudo cell, the system information is not saved, the list of forbidden cells is added, and the cell re-search is triggered;

When the target cell is a neighboring cell, marking the target cell as a pseudo cell, skipping the target cell, and continuing to determine the next candidate neighboring cell;

When the target cell is an application cell, the target cell information is not saved, the target cell broadcast control channel is set to be invalid, and the next cell is continuously searched.
A terminal, wherein the terminal comprises a transceiver unit and a processing unit;

a transceiver unit, configured to receive a system message SI3 of the target cell;

a processing unit, configured to acquire a system parameter of the target cell according to the SI3, compare a value of the system parameter with a normal value, and score the target cell according to the comparison result to obtain a score score; Determining whether the base station corresponding to the target cell is a pseudo base station.
The terminal according to claim 6, wherein the processing unit is further configured to determine that the base station corresponding to the target cell is a pseudo base station when the score score is higher than a high score threshold.
The terminal according to claim 7, wherein the processing unit is further configured to compare the target cell power value with the power value of the serving cell and the neighboring cell of the serving cell, when the power value of the target cell When the value is the maximum value, the score score is increased, and when the power value of the target cell is not the maximum value, the score score is decreased.
The terminal according to claim 7, wherein the processing unit is further configured to calculate a difference between the target cell location difference code and the serving cell location difference code, if the difference is greater than a difference threshold , then increase the score.
The terminal according to any one of claims 6 to 9, wherein the processing unit is further configured to: when the base station corresponding to the target cell is a pseudo base station, determine that the target cell is a pseudo cell, not Hosting, and performing the following operations according to the type of the target cell:

When the target cell is a serving cell, the system information database is not updated, the current cell is isolated, and cell reselection is triggered;

When the target cell is to be determined, the frequency of the target cell is marked as a pseudo cell, the system information is not saved, the list of forbidden cells is added, and the cell re-search is triggered;

When the target cell is a neighboring cell, marking the target cell as a pseudo cell, skipping the target cell, and continuing to determine the next candidate neighboring cell;

When the target cell is an application cell, the target cell information is not saved, the target cell broadcast control channel is set to be invalid, and the next cell is continuously searched.