Abstract: Transceiver integrated circuit suitable for distributed placement across an active antenna unit. ICs with two serial data ports configured to transmit and receive aggregated signal-port IQ data packets with adjacent ICs within a subarray of ICs, or to a beamformer processor. A packet header inspection circuit may identify aggregated signal-port IQ data packets for local processing, and identify received aggregated signal-port IQ data packets for processing by another device.

Abstract: A human machine interface control unit as an information presentation control device is used in a vehicle having an autonomous driving function to perform a driving action on behalf of a driver, and controls an information presentation device configured to present information to the driver. The human machine interface control unit includes a permissible action determination unit configured to determine a permissible action that a driver is permitted to take among actions, other than a driving action, to be possibly taken by the driver when the autonomous driving function is implemented, and an information presentation content control unit configured to cause an information presentation device to present information related to a determination result of the permissible action.

Abstract: A method and a device for switching a master earphone with a slave earphone of TWS earphones in a call scenario, and a medium are provided. In the method for switching a master earphone with a slave earphone of TWS earphones in a call scenario according to the present disclosure, a signal indicating a position change of the master earphone being worn relative to a wearing part of the master earphone and a signal indicating a position change of the slave earphone being worn relative to a wearing part of the slave earphone are obtained; it is determined whether the signals meet a master-slave earphone switching condition; and in a case that the signals meet the master-slave earphone switching condition, the master earphone is controlled to operate in a slave earphone mode and the slave earphone is controlled to operate in a master earphone mode.

Abstract: Disclosed herein are systems and techniques for remote bus enable. In some embodiments, a communication system with remote enable functionality may include: a master transceiver coupled to a downstream link of a bus; a voltage regulator, wherein the voltage regulator has a voltage output and an enable input, and the voltage output is coupled to the master transceiver; and a switch coupled to the enable input of the voltage regulator.

Abstract: A data communication network includes a data communication node, imaging devices, and an information handling system. The data communication node establishes a data connection with a user equipment device within a RF coverage area associated with the data communication node. The imaging devices provide image information for the RF coverage area. The information handling system receives the image information, synthesizes a 3D map of the RF coverage area based upon the image information, receives coverage information from the data communication node, and correlates the coverage information with the 3D map to generate a coverage map of the RF coverage area. The coverage map predicts an obstacle to the data connection within the RF coverage area.

Abstract: A distributed control system includes a remote control system configured to be communicatively coupled with plural separate vehicle systems. The remote control system is configured to remotely control operation of the vehicle systems and/or communicate with the local vehicle control system or operator. The remote control system also is configured to one or more of change how many of the vehicle systems are concurrently controlled by the remote control system or change how many remote operators of the remote control system concurrently control the same vehicle system of the vehicle systems.

Abstract: A system and method for reducing energy consumption in a wireless network. In one embodiment, a system includes a network coordinator configured to manage access to a wireless network. The network coordinator includes a controller. The controller is configured to define a channel hopping list that specifies on which channel a beacon signal is transmitted in each slot frame of the wireless network. The controller is also configured to set a number of time slots in each slot frame based on a length of the channel hopping list. The controller is further configured to transmit a first beacon signal in each slot frame on a channel specified by the channel hopping list. The number of slots in each slot frame causes the first beacon signal to be transmitted on a same channel in each slot frame.

Abstract: Disclosed herein is a method, an Access Point (AP) device for creating a closed Wireless Fidelity (Wi-Fi) hotspot network, and a method, a station device for connecting to the closed Wi-Fi hotspot network. The AP device receives a first input for creating the closed Wi-Fi hotspot network, transmits an encryption key to the station device, which is present within a predefined region, over an in-band communication medium or an out-of-band communication medium, and creates the closed Wi-Fi hotspot network by communicating management frames in cipher text with the station device. The station device receives the encryption key and the management frames from the AP device; and transmits a connection request to the AP device for connecting to the closed Wi-Fi hotspot network. The communication of the management frames in the cipher text provides improved security against attacks associated with Wi-Fi hotspot networks.

Abstract: A security platform architecture is described herein. The security platform architecture includes multiple layers and utilizes a combination of encryption and other security features to generate a secure environment.

Abstract: Disclosed are systems and methods for multiple spectrum plans on a single cable segment. An example method may include causing, by a processor, to send an indication to a first customer premises device (CPE) of a Data Over Cable Service Interface Specification (DOCSIS) network to transmit and receive data outside of a second frequency range, wherein the first CPE is configured to transmit and receive data over the DOCSIS network using a first frequency spectrum, wherein the first CPE is configured to transmit upstream data in a first frequency range between a first frequency and the second frequency, and wherein the DOCSIS network further comprises a second CPE configured to transmit and receive data on the DOCSIS network using a second frequency spectrum, wherein the second CPE is configured to transmit upstream data in a second frequency range between the second frequency and a third frequency.

Abstract: Systems and methods for operating a system. The methods may comprise: using a machine learning model to identify which frequency of a plurality of possible frequencies that can be used by a communication device for wireless communications is an inferred best frequency based on weather report information and/or predicted weather information; performing operations to select a best frequency from the plurality of possible frequencies using the inferred best frequency and a frequency value selected by a link establishment process of the communication device; and causing the communication device to communicate signals with the best frequency which was selected.

Abstract: Some embodiments include apparatus having multiple samplers in a decision feedback equalizer (DFE). The multiple samplers include at least two samplers and are configured to be activated in a first mode of the DFE to receive first input information from a summing circuit. At least one of the samplers is configured to be deactivated in a second mode of the DFE. At least one of the samplers is configured to be activated in the second mode of the DFE to receive second input information from the summing circuit.

Abstract: A sound input-output control apparatus includes a posture calculation unit configured to calculate postures of a plurality of respective sound output apparatuses each independently mounted on a user, a synchronousness determination unit configured to determine whether changes in at least two postures among the postures of the plurality of sound output apparatuses are synchronized, and an operation control unit configured to control operation of each of the sound output apparatuses, the operation control unit controls each of the sound output apparatuses to perform first operation when changes in the postures are synchronized, and the operation control unit controls each of the sound output apparatuses to perform second operation when it is determined that changes in the postures are not synchronized.

Abstract: The present invention discloses a sound pickup device, a pet training monitor and a training monitoring method thereof. The sound pickup device comprises a single chip microcomputer, a digital silicon microphone, a wireless module and a power supply, wherein the single chip microcomputer is provided with a power supply interface and an SPI communication interface simulating a communication interface of the digital silicon microphone, and the SPI communication interface is connected with a clock pin and a data pin of the digital silicon microphone to collect single-channel audio data of the digital silicon microphone; the single-channel audio data is converted into PCM audio data by the single chip microcomputer, the single chip microcomputer is connected with an communication interface of the wireless module to transmit the PCM audio data, and an output end of the power supply is connected with the power interface of the single chip microcomputer to supply power to the single chip microcomputer.

Abstract: A status visualization method of a diagnostic laboratory system. The status visualization method includes receiving, at a system controller, computer-readable data comprising analyzers included within the diagnostic laboratory system, and test demand for types of tests and number of the tests to be performed on samples by the analyzers, wherein the analyzers each include consumable items and maintenance items. The method further includes determining, via a walk-away time estimation module executing on the system controller, an estimated walk-away time for the analyzers based upon the test demand and status of the consumable items and maintenance items. Diagnostic laboratory systems with walk-away time estimation are disclosed, as are other aspects.

Abstract: An electronic device powered by a solar panel and a rechargeable battery. The electronic device prevents draining of the rechargeable battery through the solar panel when the solar panel is unable to provide sufficient energy to power the electronic device. The electronic device prevents unnecessary charging and discharging of the rechargeable battery by disconnecting the rechargeable battery when the rechargeable battery is fully charged. The electronic device detects and reports a defective rechargeable battery by powering the electronic device off of the solar panel. The electronic device detects and handles brownout conditions when powered by the solar panel by re-connecting the rechargeable battery.

Abstract: An acoustic location determination system is disclosed. The system includes one or more transmitting devices and one or more mobile devices. The transmitting device includes a first transducer configured to transmit first acoustic signals having a first frequency, and a second transducer configured to transmit second acoustic signals having a second frequency. The transmitting device further includes a beacon device configured to transmit beacon data via a short-range wireless communication technique. The transmitting device further includes one or more control devices configured to select the first or second acoustic signals based at least in part on one or more operating capabilities of one or more mobile units associated with the real-time locating system. The one or more control devices are further configured to cause transmission of the selected acoustic signals and the beacon data.

Abstract: The barcode scanner for use with a parcel delivery system is an interface device. The barcode scanner for use with a parcel delivery system is configured for use in delivering packages. The barcode scanner for use with a parcel delivery system forms a wireless communication link with an appropriate authority. The barcode scanner for use with a parcel delivery system reads a bar code that appears on a package. The barcode scanner for use with a parcel delivery system transmits the read bar code and the location of the package to the appropriate authority. The appropriate authority logs the delivery of the package with the bar code. The appropriate authority transmits to the barcode scanner for use with a parcel delivery system the operational details about the next assigned delivery location.

Abstract: Incidents may be monitored using a camera in response to an activation of a trigger device. Trigger data may be received over a communication network in response to activation of a trigger device disposed within a first area of a vehicle. A camera disposed within a second area of the vehicle may be controlled over the communication network in response to receiving the trigger data, the controlling causing the camera to capture sensor information of a passenger of the vehicle. Passenger information of the passenger of the vehicle may be obtained in response to receiving the trigger data. An alert notification may be generated. The alert notification may comprise at least a portion of the sensor information of the passenger, and the alert notification may be capable of initiating one or more incident actions associated with the passenger.

Abstract: In at least one embodiment, a system for performing biometric evoked response monitoring and feedback for a vehicle is provided. The system includes a plurality of sensors and at least one controller. The plurality of sensors may be positioned about a main cabin of the vehicle and each sensor is configured to provide a first signal indicative of a measured electromagnetic characteristic of an anatomical feature of a driver for the vehicle in response to an alert being issued to the driver. The at least one controller is configured to receive the first signal and to determine a stimulus response and an attentiveness response of the driver based on the measured electromagnetic characteristic of the anatomical feature of the driver.

Abstract: Embodiments of the present invention provide an apparatus and method for enrolling a wireless AP into a Multi-AP (MAP) wireless network. By enrolling multiple wireless AP in a MAP wireless network, the wireless APs can cooperate to efficiently service wireless STAs and advantageously mitigate signal interference and degradation do to walls, structures, objects, etc. To enroll a new wireless AP into an existing MAP wireless network, the new wireless AP is authenticated and configured into the MAP network using a wireless device with ‘controller’ functionality (a “controller device”) that can act as a ‘Device Provisioning Protocol (DPP) configurator.’ A DPP-capable smartphone can perform DPP authentication and configuration without using a proprietary smartphone application. In this way the burden on both the user and the equipment manufacturer is reduced because a propriety smartphone application is not needed to enroll the new wireless AP.

Abstract: Systems, apparatuses, and methods are described for controlling vibrations output by one or more computing devices. A computing device may determine an event, and may also determine, using a noise sensor, an ambient noise level around the computing device. Based on the ambient noise level, the computing device may then select a tactile vibration or an audible sound associated with the event. Also, an intensity level of the vibration or sound may be based on the determined ambient noise level.

Abstract: A method and apparatus capable of minimizing power consumption occurring when a mobile device is changed from a sleep state to a wake-up state by partially controlling on/off of a display unit and partial booting control of a system function are provided. The method includes detecting a change of the mobile device from a sleep state to a wake-up state, turning on a display unit of the mobile device such that a first section of the mobile device displays an operating region, the first section including one or more portions of the display unit and less than an entire screen of the display unit and waiting for a system function registered in the operating region.

Abstract: A driver assistance control device includes a detection part detecting a degree of concentration of a driver; an acquisition part acquiring assistance levels set by the driver; a driver assistance control part performing a plurality of the functions; and a changing part automatically changing setting of the plurality of the functions in accordance with the degree. The changing part automatically changes the settings of first driver assistance functions including one of a plurality of the functions so that the assistance levels become higher than the levels set by the driver when the degree becomes lower than a first value, and automatically changes the settings of second driver assistance functions including at least another of a plurality of the functions so that the assistance levels become higher than the levels set by the driver when the degree becomes lower than a second value different from the first value.

Abstract: Provided are a method and device for determining a transmission mode, a storage medium and an electronic device. The method includes acquiring information for determining the transmission mode, where the information includes at least one of: service profile information about a first service from an upper layer of a first terminal or an application layer of the first terminal, access layer information about the first terminal, transmission parameter information configured for the first terminal by a base station, or capability information about a second terminal of a proximity service; and determining the transmission mode according to the information. This can solve the problem in the existing art of how to perform communication better when there are UEs of different types or different capabilities in a system.

Abstract: Various examples are directed to systems and methods for visualizing computerized model decisions. A model system may access result data that comprises event results for a plurality of events and event feature data describing sets of event features. A first event result for a first event of the plurality of events is generated using the computerized model and a first set of event features from the event feature data. The model system may access importance score data comprising importance scores for at least a portion of the first set of event features, wherein a first event feature is assigned a first importance score and a second event feature is assigned a second importance score indicating a greater importance than the first importance score. The model system may also generate a user interface for display to a human user. The user interface may comprise a background area; a first visual indicator positioned on the background area and corresponding to the first event feature.

Abstract: An equalizer circuit, a method for sampling data and a memory are provided. The equalizer circuit includes a first input buffer circuit, a second input buffer circuit and a selecting and sampling circuit. The first input buffer circuit and the second input buffer circuit are respectively connected with the selecting and sampling circuit, and reference voltages used in the first input buffer circuit and the second input buffer circuit are different from each other. The selecting and sampling circuit selects to perform data sampling on a data signal outputted by the first input buffer circuit or the second input buffer circuit according to data outputted previously by the equalizer circuit, and takes sampled data as data outputted currently by the equalizer circuit.

Abstract: For acquiring system information instances, a method determines if one or more system information instances requested in a request message are received in a reply message from a base station. The request message includes a request bitmap indicating the requested system information instances. The reply message includes a reply bitmap indicating the system information instances in the reply message. The method acquires the system information instances indicated in the request bitmap and the reply bitmap from the reply message. In addition, the method requests the system information instances from the base station that are indicated in the request bitmap and not indicated in the reply bitmap.

Abstract: Disclosed herein is a method of connection of home appliance to a network, a network-connection system for home appliances, and an apparatus related to a network-connection setting for home appliances. The network connection method of home appliance includes operations in which a terminal device receives an input of an authentication key of an access point (AP) apparatus and the terminal device or the AP apparatus verifies and authenticates the authentication key; a home appliance is set to be in a state of communicating with the terminal device; the home appliance is interconnected to the terminal device and the terminal device transmits an identification number and the certificated authentication key of the AP apparatus to the home appliance; and the home appliance is connected to the AP apparatus based on the identification number and the authentication key of the AP apparatus.

Abstract: This disclosure provides a system and method for providing intelligently-selected collections of user-centric content in a web browser. When implemented as a method, the method includes maintaining a user-centric graph with a plurality of user-centric facts derived from user interaction with different computer services. The method further includes recognizing different contexts of interest to the user. For each context, a collection of user-centric facts pertaining to the context are recognized in the user-centric graph, such recognition being based on a relationship between user-centric facts in the user-centric graph. The method further includes, for each context, displaying intelligently-selected content based on the collection of user-centric facts.

Abstract: An autonomous driving assistance system is a system for assisting driving of vehicles, and includes a service server that provides services relating to the vehicles to operation terminals, a vehicle connection server connected to the vehicles via wireless communication routes, and a plurality of control servers each communicating with the vehicles by handover and respectively controlling travel of the vehicles in different areas. When calling a vehicle parked in a predetermined area in accordance with the service provided by the service server, a control server that is associated with the predetermined area among the control servers causes the vehicle connection server connected to the vehicle to notify the vehicle of an end point, the end point being information indicating the location of the control server as a connection destination.

Abstract: A method is described for determining a set of coding formats usable by a first terminal to establish communications with a second terminal. The method includes obtaining, from a server, a first set of coding formats permitted on the communication network, and associated with a type of access network and with a type of communication service, and obtaining a second set of coding formats supported by the terminal, a type of access network, and a type of communication service which are used by the terminal. A third set of coding formats are determined, corresponding to a set of coding formats supported by the terminal and permitted by the network with regard to the type of network access and to the type of communication service used by the terminal, and a setup message is transmitted to the second terminal including at least one coding format included in the third set when the third set is not empty.

Abstract: A system and method for automatically detecting if a vehicle safety system is being used by a driver is disclosed. The system and method use data gathered from one or more sensors in the vehicle. The data is analyzed to determine if the safety system is being used or disabled. The system can send reminders to a driver to use the safety system. The system and method can also automatically update a policy holder's insurance policy to reflect whether or not a safety system is being used.

Abstract: A method for providing contextual information to a user during a browsing session includes maintaining a user-centric graph including a plurality of user-centric facts associated with the user and derived from interaction by the user with a plurality of different computer services. The method further includes recognizing a context of interaction with a browser application by a user. The method further includes identifying assistive information pertaining to the context, and displaying the assistive information to the user. The assistive information may be based at least on one or more user-centric facts in the user-centric graph.

Abstract: In accordance with some embodiments, a secure local application communication method is performed at a first apparatus that includes a housing arranged to hold a second apparatus, a controller, a communication interface, and a non-transitory memory storing a matrix. The secure local application communication method includes detecting, via the communication interface, a request originating from a first application executing on the second apparatus to communicate with a second application on the second apparatus. The method further includes determining whether or not to allow the request based on the matrix. The method additionally includes allowing transportation of packets from the first application to the second application in accordance with a determination of allowing the request.

Abstract: Techniques for peak-to-average power ratio (PAPR) reduction are described. Wireless devices may use one or more PAPR shaping resources, such as expanded bandwidth and/or pulse-shaping filtering, for shaping a signal to reduce PAPR. For example, expanded bandwidth may be utilized for adding a cyclic affix (CA), such as may comprise a cyclic prefix (CP), cyclic suffix (CS), etc., and combinations thereof, to a frequency domain data signal to provide a CP augmented frequency domain data signal used to generate a reduced PAPR time domain data signal. Additionally or alternatively, pulse-shaping filtering may be applied to a frequency domain signal to provide a pulse-shaped frequency domain data signal used to generate a reduced PAPR time domain data signal. Other aspects and features are also claimed and described.

Abstract: Wireless communications systems and methods related to globally unique temporary identity (GUTI) reallocation for cellular-Internet of thing (CIoT) are provided. A user equipment (UE) receives, from a network, a paging associated with a mobile-terminated early data transmission (MT-EDT). The UE transmits, by the UE to the network, a data request in response to the paging. The UE receives, from the network in response to the data request, a message including a global unique temporary identifier (GUTI) and at least one of data associated with the paging or a connection release indication.

Abstract: The disclosure is generally directed to systems and methods for assisting a physically handicapped individual to obtain a ride in an autonomous vehicle. In one exemplary embodiment, a physically handicapped individual can use a helper application installed in a smartphone to initiate a request for an autonomous vehicle. Upon receiving the request, the helper application determines a first set of location coordinates of the physically handicapped individual and a second set of location coordinates of an autonomous vehicle that is available to provide the ride. The helper application may use the first set and/or the second set of location coordinates to identify a parking spot for the autonomous vehicle. The smartphone then transmits to the autonomous vehicle, a first set of instructions directing the autonomous vehicle to drive to the parking spot, and a second set of instructions to the physically handicapped individual to assist in moving to the parking spot.

Abstract: A system and method provides individualized broadcast radio content in a vehicle. The system has a transmitting unit for transmitting broadcast radio content to the vehicle. The transmitting unit is configured to receive broadcast radio content from a multiplicity of servers, to generate from the received broadcast radio content a selection of broadcast radio content individualized for the vehicle and to convey the individualized selection of broadcast radio content to a receiving unit of the vehicle. The vehicle also has a computing unit configured to generate from the individualized selection of broadcast radio content a broadcast radio content tailored to a current journey of the vehicle and/or a current frame of mind of the vehicle occupants.

Abstract: Systems and methods for creating and/or using an artificial intelligence memory system that models human memory are provided. The AI memory system creates and/or uses a user centric memory graph. The user centric memory graph implicitly links memory elements of a user utilizing relationships created in space, time, and cognitive dimensions similar to how the human brain stores and recalls different memory elements. The user centric memory graph is used by searching and/or constraining the user centric memory graph based on a determined user context and/or a user query.

Abstract: A communication apparatus includes a user signal transmission unit that transmits a user signal required for an end user to perform communication; a manager function implementing unit that implements a function provided to a manager of the present apparatus; a license monitoring unit that monitors a license of the present apparatus, and outputs a function limitation signal when the license has expired; and a function limitation unit that limits the function implemented by the manager function implementing unit when receiving the function limitation signal. In a communication apparatus that transmits a user signal required for an end user to perform communication, a function of the apparatus is limited when a relevant license has expired, while preventing an influence of the limitation upon the end user.

Abstract: The disclosed computer-implemented method may include (i) generating a data center constraint model by placing a constraint on a total amount of ingress or egress traffic a service expects from each respective data center of multiple data centers, (ii) filtering a set of traffic matrices that indicate points in the data center constraint model by comparing the set of traffic matrices against cut sets of a network topology that indicate network failures to create a tractable set of dominating traffic matrices, (iii) obtaining physical network resources to implement a cross-layer network upgrade architecture that satisfies the tractable set of dominating traffic matrices, and (iv) allocating the physical network resources across the multiple data centers according to the cross-layer network upgrade architecture such that a capacity level of the multiple data centers is increased while satisfying the data center constraint model. Various other methods, systems, and computer-readable media are also disclosed.

Abstract: A device may receive a request, from a user equipment (UE), to connect to a network. The device may receive antenna information indicating that the UE has a single antenna, and the device may receive device type information indicating a device type of the UE or network resource requirements associated with the UE. The device may obtain network policy information, relating to the UE, based on the antenna information and/or the device type information. The network policy information may indicate one or more policy rules associated with allocating network resources. The device may determine a quantity of network resources to allocate based on the network policy information, and the device may allocate the quantity of network resources for the UE.

Abstract: A method for controlling selection of a communication method between an equipment control device belonging to a wide-area communication network and equipment belonging to a local communication network. The method includes the following steps relating to the control device: requesting the equipment to initiate a connection to the control device, the request being sent at the time of a routine connection of the equipment to the control device; determining whether the equipment can be reached by the control device using a direct method; and configuring the equipment if the equipment cannot be reached using a direct method.

Abstract: A tracking device for a track and rescue system that wirelessly couples to a control system via a first link established between a control system first type wireless communication interface coupled to the control system and a tracking device first type wireless communication interface included in the tracking device when the tracking device first type wireless communication interface is within range of the control system first type wireless communication interface. The tracking device determines that a first predetermine time period has been satisfied, and in response, determines location information for the tracking device using the positioning system. The tracking device sends, in response to the first predetermined time period being satisfied, an alive signal to the control system via the first link, and the alive signal includes the location information.

Abstract: A computing system of an organization receives data through multiple channels of communication; a programmatic interface for each of the different channel infrastructures may be called to convert data about a user's contact with the system. Contact records for contain data such as a user ID and a channel identifier. An operational database may receive the converted contact records from the devices or software. A transaction application may perform various tasks resulting in the generation of transaction data. A transaction record containing the transaction data may be generated in a message queue or operational database. The interface for the communication channel may convert the transaction data in a message queue, after the transaction data is detected by a listening application that monitors the message queue and logs new transaction data to the operational database.

Abstract: The present disclosure relates to a method (100) for determining scheduling assignments for reducing nonlinear signal distortion, performed in a network node of a wireless communications network. The network node comprises an antenna array arranged to perform beamforming. The method (100) comprises obtaining (S10) channel state information, CSI, relating to respective channels between the network node and at least two wireless devices served by the network node. The method further comprises determining (S20) precoding vectors to the at least two wireless devices based on the obtained CSI. The method also comprises determining (S30) at least two frequency scheduling assignments for each of the at least two wireless devices. The method additionally comprises estimating (S40), for each of the determined at least two frequency scheduling assignments, a respective transmitted nonlinear signal distortion to each of the at least two wireless devices based on the obtained CSI.

Abstract: A computer-implemented method for processing a transaction may include, upon receiving a transaction change request, operating a coordinator to generate a unique transaction identifier for the transaction request, send a data change request along with the unique transaction identifier to sources, and store the unique transaction identifier along with a respective first change count in a transaction status table. The method may also include, upon receiving a query, operating a given source to determine from the transaction status table, a second change count of sources associated with the unique transaction identifier, determine whether the second change count matches the first change count for each source, and when the first and second change counts match in each of the other sources, read data associated with the query from the given source and each source.

Abstract: An electronic apparatus includes a communication interface configured to selectively receive a first signal having a first carrier frequency transmitted for a first period by a first transmitter, and a second signal having a second carrier frequency different from the first carrier frequency and transmitted for a second period not continuous with the first period by a second transmitter different from the first transmitter, and a control circuit configured to cause the communication interface to execute the first signal for a third period including the first period and to, when the communication interface does not receive the first signal during the third period, cause the communication interface to execute reception processing of the second signal for a fourth period including the second period and being not continuous with the third period.

Abstract: A method for mitigating interference at a small base station in a hierarchical cell structure is provided. In the method, the small base station checks a sub-frame allocated to macro user equipment by using a downlink signal received from a macro base station when an interference candidate user equipment list is received. The interference candidate user equipment list contains information on the macro user equipment adjacent to a femto cell controlled by the small base station. Then the small base station allocates other sub-frame to femto user equipment located in the femto cell by avoiding the sub-frame allocated to the macro user equipment.