56 results about "IMSI-catcher" patented technology

Network computing equipment may receive one or more radio parameter measurement reports generated by one or more user equipment. A report may comprise radio parameter values measured by user equipment corresponding to signals transmitted by a radio access network node and time information corresponding to the report. The computing equipment may perform temporal analysis based on time information corresponding to one or more reports and may generate a temporal graph based on the time information. Edges of the temporal graph may correspond to connection activity of user equipment that generated the reports with respect to one or more radio access network nodes. The edges may be ranked using a graph-based model and optimally combined with anomaly scores, determined based on the measured radio parameter values, into combined anomaly scores that may be compared to a criterion to determine that a radio access network node is a fake base station.

The invention provides an unmanned aerial vehicle control instruction trapping method and system based on a pseudo base station technology. According to the method, firstly, signal parameters and environmental electromagnetic noise characteristics of a real base station are collected, and a dynamic base station analog signal is generated and transmitted, so that the unmanned aerial vehicle initiatively initiates a detection signal; analyzing instruction coding characteristics in the detection signal to reconstruct a trapping control signal with protocol deception, and finally enabling the unmanned aerial vehicle to keep communication connection with the pseudo base station device and continuously transmit control instruction data by adaptively adjusting a protocol field parameter and a transmitting power parameter of the trapping control signal; according to the technical scheme provided by the invention, unmanned aerial vehicle counter-reconnaissance alarm caused by abnormal signal characteristics is thoroughly eliminated, and the concealment and reliability of an instruction trapping process are improved.

Network computing equipment may receive one or more radio parameter measurement reports generated by one or more user equipment. A report may comprise radio parameter values measured by user equipment corresponding to signals transmitted by a radio access network node and time information corresponding to the report. The computing equipment may perform temporal analysis based on time information corresponding to one or more reports and may generate a temporal graph based on the time information. Edges of the temporal graph may correspond to connection activity of user equipment that generated the reports with respect to one or more radio access network nodes. The edges may be ranked using a graph-based model and optimally combined with anomaly scores, determined based on the measured radio parameter values, into combined anomaly scores that may be compared to a criterion to determine that a radio access network node is a fake base station.

A user equipment (“UE”) in a wireless communication network can receive a plurality of signals from a plurality of nodes. The UE can further determine a plurality of radio signal strength measurements. Each radio signal strength measurement can be associated with a signal of the plurality of signals received from the plurality of nodes. The UE can further determine whether there is an indication that a first node of the plurality of nodes may be an imposter node based on the plurality of radio signal strength measurements.

The present disclosure provides a false base station positioning method and apparatus, a storage medium, and an electronic apparatus. The method comprises: acquiring a working frequency and a cell identity of a false base station cell in a target region; causing a test terminal to access, according to the working frequency, the false base station cell corresponding to the cell identity, and, on the basis of first path loss data between the test terminal and the false base station, determining a first distance between the test terminal and the false base station; and, on the basis of a movement path corresponding to the first distance, determining the location of the false base station, the movement path being a path obtained after an initial path corresponding to the test terminal is adjusted according to a preset adjustment rule, and the preset adjustment rule being used for determining a movement angle and / or a movement distance of the test terminal at different position points of the movement path.

In a wireless network, it provides a real base station (RBS) capable of detecting false or impersonated base station (FBS) attacks. [Solution] An enhanced access device, which is a real base station (RBS), comprises a randomizer (RM) 25 for randomizing the assignment of at least one communication resource and / or identifier used to communicate with a wireless communication device, and a detector unit (DET) 22, which is an attack inspection unit, for checking whether a transmission received from a wireless communication device used at least one communication resource and / or identifier assigned by the randomized assignment, and for determining the presence of a fake base station or an attack by a fake base station based on the result of the inspection.

The present disclosure relates to a 4G communication system, a 5G communication system, or a 6G communication system. Specifically, the embodiment of the invention provides a communication method, user equipment, a base station, a storage medium and a program product. The method executed by the UE comprises: receiving a first message, the first message being used for indicating cell handover, the first message comprising first configuration information; the first configuration information comprises first information used for indicating switching to a first cell, information of a first radio frequency fingerprint feature corresponding to the first cell, and second information related to a reference signal; and performing radio frequency fingerprint measurement based on the received reference signal to obtain a second radio frequency fingerprint feature corresponding to the first cell, and performing cell switching based on whether the first radio frequency fingerprint feature is matched with the second radio frequency fingerprint feature. According to the invention, radio frequency fingerprint measurement and verification are carried out on the cell indicating switching, induced switching or hijacking of the UE by a pseudo base station is effectively prevented, and the information and property safety of the UE is guaranteed.

The invention relates to the technical field of 5G communication security, and discloses a 5G short message encrypted transmission method, which comprises the following steps: acquiring time delay spread, angle spread and Doppler spread parameters of indoor multipath propagation, and generating a multi-dimensional channel characteristic matrix; acquiring a historical channel fingerprint database and a current channel feature matrix, and outputting a channel anomaly score; generating a three-dimensional decision space coordinate by using a threat-performance joint state space mapping algorithm; monitoring the real-time encryption queue length and the processing delay of each slice, calculating the actual SLA fulfillment rate and the security event interception rate, and generating a performance feedback vector; and inputting the performance feedback vector into a reward function calculation module of the reinforcement learning model, updating model parameters, and outputting an optimized decision strategy. According to the method, the interference of environmental noise on threat detection is avoided, the accuracy of pseudo base station attack identification is improved, and the problem of resource conflict arbitration in a multi-network slice scene is solved.

The invention provides a cell switching method and a related device, in the method, a first network device sends configuration information of an uplink signal to a terminal device, and the configuration information is configuration information of an exclusive uplink signal allocated to the terminal device by a second network device; the terminal equipment sends an uplink signal based on the configuration information; the second network equipment can perform measurement based on the received uplink signal to obtain an uplink measurement result and send the uplink measurement result to the first network equipment; the first network device can determine whether to switch the terminal device to the cell associated with the second network device based on the uplink measurement result, and if the terminal device is determined to switch to the cell, a switching command message is sent to the terminal device to command the terminal device to switch to the cell. Visibly, the pseudo base station cannot know the configuration information of the exclusive uplink signal of the terminal equipment and counterfeit the uplink signal, so that unnecessary switching caused by counterfeit of a downlink broadcast signal by the pseudo base station is avoided, and the success rate of cell switching is improved.

A mobile communication test system has a test control unit including a setting control unit that sets a test scenario including a transmission mode defined in a layer that allows protocol testing to be performed without going through the PHY layer and RF unit; and a pseudo communication control unit that generates an IP packet with a changed format according to the set transmission mode when performing a protocol test, and controls the pseudo base station unit to transmit and receive the IP packet with the changed format between the codec processing unit and the opposing codec processing unit, and thereby the protocol test is performed without going through the PHY layer and RF unit.

The embodiment of the invention provides a pseudo base station positioning method and device, a storage medium and an electronic device. The method comprises the following steps: acquiring a working frequency point and a cell identifier of a pseudo base station cell in a target area; accessing a test terminal to the pseudo base station cell corresponding to the cell identifier according to the working frequency point, and determining a first distance between the test terminal and the pseudo base station according to first path loss data between the test terminal and the pseudo base station; and determining the position of the pseudo base station based on a moving path corresponding to the first distance, the moving path being a path obtained by adjusting an initial path corresponding to the test terminal according to a preset adjustment rule, the preset adjustment rule is used for determining moving angles and / or moving distances of the test terminal at different position points of the moving path. By adopting the technical scheme, the problem of low positioning accuracy of the pseudo base station in related technologies is solved.

The application discloses a wireless signal secret detection method and system based on spectrum analysis, realizes detection of illegal wireless signals from a pseudo base station under the premise of protecting the privacy of users, and effectively realizes detection even in a scene where different operators cannot coordinate. In addition, the method provided by the application determines which user identifier information has been leaked, that is, a risk terminal, on the basis of the identifier information of the user terminal, the risk terminal is the focus of subsequent attack behaviors of the pseudo base station, and then the detection result of different operators and the performance of the risk terminal are combined to detect the risk wireless signal, so that the detection accuracy is improved. Moreover, the detection process is cooperated by the detection end and the operation end, and the risk monitoring is realized together, which is beneficial to reducing errors. Then, an alarm is sent to the corresponding user based on the monitoring result, so that the harmfulness of the risk result is reduced as much as possible.

Systems and methods are provided for preventing user equipment from communicating with non-approved third-party sites, such as simulators or IMSI catchers. Using criteria to determine whether signals are associated with approved sources, such as a base station, or non-approved sources, such as bad actors, embodiments are able to identify bad actors and prohibit attempted connections. User equipment (UE) can use a blacklist, or graylist, of sites to avoid, which conserves time and resources. Because a UE avoids third-party sites, the UE communicates with approved network devices and is able to successfully access emergency services.

To provide a mobile terminal testing device capable of easily referring to an EVM measurement result of an SRS by automatically calculating an allocation position of the SRS. The mobile terminal testing device includes: a pseudo base station unit 2 that transmits and receives an RF signal to and from a mobile terminal 10; a scenario processing unit 3 that transmits notification information to the pseudo base station unit 2 and executes a communication sequence with the mobile terminal 10, based on a scenario of a test; and a control unit 6 that calculates an allocation position of an SRS based on a set parameter, and displays an EVM measurement result such that the allocation position of the SRS is recognized.

The invention discloses a wireless signal secrecy detection method and system based on spectral analysis, which realize detection of illegal wireless signals from a pseudo base station on the premise of protecting the privacy of a user, and can effectively realize detection even in a scene in which different operators cannot coordinate. Furthermore, the method provided by the invention determines which user identification information has been leaked, namely the risk terminal, on the basis of the identification information of the user terminal, and the risk terminal is the key point of the subsequent attack behavior of the pseudo base station, so that the detection results of different operators and the performance of the risk terminal can be combined, and the detection accuracy of the pseudo base station can be improved. And the risk wireless signals are detected, so that the detection accuracy is improved. Moreover, in the detection process, the detection end and the operation end cooperate to realize risk monitoring together, and errors can be reduced. Afterwards, an alarm is sent to a corresponding user based on a monitoring result, so as to reduce the harmfulness of a risk result as much as possible.

A legitimate radio access network node may determine fake base station barring criteria that may be transmitted to a user equipment in a fake base station barring configuration. The user equipment may analyze information or signal characteristics corresponding to a signal associated with another node with respect to criteria contained in the fake base station barring configuration. The barring criteria may include a signal strength threshold or a timing advance threshold. If the analyzed information or signal characteristics satisfy barring criteria contained in the barring configuration, the user equipment may determine that the other node is a fake base station and may avoid selecting, or accessing, the other node. The user equipment may flush radio resource control configuration information corresponding to the fake base station. The user equipment may select or access a next-best node based on the barring criteria being satisfied with respect to the determined fake based station.

The invention discloses a network security monitoring method for monitoring Internet of Things equipment, which belongs to the field of network security, and comprises the following steps: forcibly starting an encryption channel for bidirectional authentication of a child smart watch and a server, verifying the authenticity of the base station certificate through a hardware security chip preset in the child smart watch, and if an invalid certificate is detected, immediately cutting off the network, generating a first alarm code and sending the first alarm code to the parent APP; the method has the beneficial effects that the network security of the child smart watch is monitored, an encryption channel is forcibly started, and a pseudo base station attack is completely eradicated; measurement data of satellite positioning, WiFi positioning and base station triangulation positioning are analyzed in a cross mode, and position cheating caused by single dependence on satellite positioning is avoided; on the premise of low power consumption, high-risk voice real-time capture is realized, and the privacy invasion risk of continuous recording is avoided; and lawbreakers are effectively prevented from hurting children and parents by using network vulnerabilities.

Network equipment (12) comprising a processing circuitry (81) and a memory (83), where the memory contains instructions executable by the processing circuitry whereby the network equipment is configured to:identify a set of measurements to be used for false base station detection in an area (22);configure different sets (18-1, 18-2, 18-N) of one or more wireless devices (14) to report different respective measurements in the set by transmitting measurement reporting configurations (20-1, 20-2, 20-N) to the wireless devices (14);receive measurement reports from the different sets (18-1, 18-2, 18-N) of one or more wireless devices (14) as configured; andperform false base station detection for the area (22) using the received measurement reports.Methods, a wireless device (14), and communication systems are also disclosed.

This invention provides a mobile communication testing system and a mobile communication testing method that promote the shift-left approach to the development process of new mobile communication terminals, thereby shortening the development period for higher layers and reducing development costs. [Solution] The mobile communication test system 1 has a test control unit 50 which includes a setting control unit 51 that sets a test scenario including a transmission mode defined in a layer that enables protocol testing without going through the PHY layer and RF unit, and a pseudo-communication control unit 52 that, when executing protocol testing, generates IP packets with a modified format according to the set transmission mode and controls the pseudo-base station unit 10 to send and receive the modified IP packets between the codec processing unit 13 and the opposing codec processing unit 33, and is characterized by performing protocol testing without going through the PHY layer and RF unit.

The invention discloses a communication method and device, a storage medium, electronic equipment and a chip, and relates to the technical field of communication, and the method comprises the steps: receiving a refusal message sent by network equipment, the refusal message carrying a disabled tracking area identifier TAI; and performing short-time storage or neglect processing according to the forbidden TAI. According to the embodiment of the invention, short-time storage or neglect processing is carried out according to the forbidden TAI, so that the terminal equipment is not influenced by a pseudo base station for a long time, and can access a satellite cell again and provide NTN service in a short time, and the user experience is improved.

A base station of a communication system may include an antenna; a memory; and a processor. The processor analyzes a signal received through the antenna to determine if the received signal is a signal transmitted from a fake base station. Based on a determination that the source of the received signal is the fake base station, the processor generates a random access preamble signal for accessing the fake base station. The processor transmits the generated random access preamble signal through the antenna. Thus, the base station may effectively defend against an attack from a fake base station by detecting the fake base station based on collected information of a neighboring base station and causing radio resources of the detected fake base station to be exhausted. Various other embodiments are possible.

The invention provides a pseudo base station identification method and device, electronic equipment and a storage medium, and the method comprises the steps: obtaining a plurality of pieces of information received by a receiving end in a preset time period, and determining a plurality of pieces of target information in the plurality of pieces of information; wherein the multiple pieces of target information are information meeting a preset information condition in the multiple pieces of information; determining a plurality of transmitting ends respectively corresponding to the plurality of pieces of target information, and acquiring a plurality of pieces of first position information respectively corresponding to the plurality of transmitting ends; under the condition that the quantity of the multiple pieces of target information in the preset time period is greater than or equal to a preset quantity threshold value, determining the receiving end as a target receiving end, and acquiring second position information of the target receiving end; and performing base station positioning processing according to the plurality of pieces of first position information and / or the second position information to obtain third position information, and determining the position of the pseudo base station according to the third position information. Compared with the prior art, the embodiment of the invention can effectively identify the novel pseudo base station.

The present invention discloses an energy-efficient topology control method for heterogeneous wireless sensor networks based on blockchain. First, this method uses an improved DPC-MND clustering method to complete clustering. At the same time, sensor nodes are divided into three categories, namely ordinary nodes, cluster head nodes, and pseudo-base station nodes, and the three types of nodes perform their respective functions. Then, a routing path is constructed through blockchain shared routing or the Dijkstra method. Finally, the sensed data is transmitted to the base station based on the form of multi-hop forwarding. The present invention aims at large-scale heterogeneous wireless sensor networks, minimizing the overall network energy consumption as much as possible, improving the energy utilization efficiency, prolonging the survival time of each sensor node, thereby extending the network survival duration, and having better comprehensive performance in terms of energy consumption and stability and other aspects.

The invention discloses a method, a system and equipment for positioning a mobile terminal in a target area and a medium. The positioning method comprises the following steps: inducing a mobile terminal in a target area to be connected with a pseudo base station, and acquiring uplink signals of the mobile terminal by using a plurality of positioning nodes; based on the correlation number of the demodulation reference signal, extracting the uplink measurement power of the mobile terminal by using a plurality of positioning nodes; dividing a target positioning area into a plurality of networks with the same size, assuming that the mobile terminal is located at any grid point in the target area, calculating the distance between a plurality of positioning nodes and the grid point, and calculating a plurality of uplink measurement power estimated values of the mobile terminal at the grid point based on a logarithmic path loss model; and based on the uplink measurement power estimation value, converting the uplink measurement power estimation value into a probability value of the mobile terminal at any grid point after mathematical transformation, searching the grid point where the maximum value is located, and determining the position of the mobile terminal. According to the embodiment of the invention, the method is higher in positioning precision, is easy to implement, and is quick in response.

The invention relates to the technical field of Internet of Things, and discloses a pseudo base station environment judgment method and device, a storage medium, equipment and a system. The pseudo base station environment judgment method comprises the following steps: judging whether the service registration frequency of the Internet of Things equipment is greater than the network cell access refusal frequency corresponding to the Internet of Things equipment or not; if the service registration frequency is not greater than the network cell access refusing frequency, judging whether an access refusing cell corresponding to the Internet of Things equipment is a historical main service cell of the Internet of Things equipment or not; and if the rejected access cell is not the historical main service cell, judging that the Internet of Things equipment is in a pseudo base station environment. Through the method, the pseudo base station environment can be simply and efficiently identified, and accurate judgment and real-time early warning of the pseudo base station environment are realized.

A base station security detection system comprises a base station antenna, a base station repeater, a base station local server, a base station physical security detection unit, a pseudo base station detection unit, a base station communication quality detection unit, a network switch, a base station handheld terminal, a network firewall and a cloud server. The network switch is connected with the base station repeater, the base station local server, the base station physical security detection unit, the pseudo base station detection unit, the base station communication quality detection unit, the network switch, the base station handheld terminal, the network firewall and the cloud server; the base station antenna is connected with the base station local server; the base station physical security detection unit monitors and analyzes the external operation condition of the base station, the base station communication quality detection unit tests and analyzes the communication operation condition of the base station, and the pseudo base station detection unit finds and alarms a pseudo base station.

The present application relates to a signaling security protection method, an apparatus, a computer device, a storage medium and a computer program product. The method comprises: determining whether encryption operation and / or integrity protection need to be carried out or not; when encryption operation needs to be carried out, carrying out encryption operation on user plane control signaling; and / or, when integrity protection needs to be carried out, carrying out integrity protection on the user plane control signaling. By using the method, malicious attack interference by a pseudo base station or a malicious terminal can be avoided, ensuring the stability of communication systems.

The present application is applicable to the field of communication technology and provides a method for identifying a pseudo base station, comprising: periodically sending a first message to a terminal, the first message being used to instruct the terminal to measure and report the cell global identification information and tracking area code information of a newly added neighboring area; periodically receiving a second message sent by the terminal, the second message comprising: the cell global identification information and tracking area code information of the newly added neighboring area; determining the number of changes in the tracking area code of the newly added neighboring area within a first preset time period based on the second information; when the number of changes in the tracking area code of the newly added neighboring area is not within a preset range, determining the newly added neighboring area as a neighboring area of ​​a pseudo base station. This solution can accurately determine whether a neighboring area is a neighboring area of ​​a pseudo base station by the frequency of changes in the tracking area code of the neighboring area, thereby accurately identifying a pseudo base station.

A terminal base station bidirectional authentication method, system and device and a readable storage medium, the method comprising: a terminal initiates a registration service, an authentication center generates an authentication challenge signaling for a target terminal according to a preset terminal registration service corresponding rule, and returns the authentication challenge signaling for the target terminal to a base station through a switching center; the base station sends an authentication challenge signaling of the target terminal to the target terminal, the target terminal verifies the authentication challenge signaling after receiving the authentication challenge signaling, if the verification is passed, the target terminal sends a terminal verification code and a random number to the base station, and if the base station passes the verification, the target terminal successfully accesses the network; and for the terminal which has accessed the network, the base station initiates an authentication challenge to the target terminal actively, and if the target terminal and the base station pass bidirectional verification, the target terminal is successfully authenticated and challenged actively by the base station. According to the invention, network access of illegal terminals can be effectively prevented, the problem that the terminals are registered to a pseudo base station can be avoided, and the terminal network access security problem of an existing power grid is solved.