Abstract: Radio frequency architecture for reducing mutual interference between multiple wireless communication modalities. One embodiment provides a portable communications device including a housing and an RF antenna system including a first RF antenna, a second RF antenna, and a third RF antenna in the housing. The portable communications device includes an RF transceiver system including a first RF transceiver, a second RF transceiver, and a third RF transceiver operating in respective bands and an isolator circuit coupled to the RF antenna system and the RF transceiver system and configured to provide RF isolation between the first RF transceiver, the second RF transceiver, and the third RF transceiver. The isolator circuit includes an RF coupler featuring six RF coupler ports coupled to the first RF antenna, the second RF antenna, the third RF antenna, the first RF transceiver, the second RF transceiver, and the third RF transceiver through respective phasor shaping networks.

Abstract: A remote test infrastructure can enable a developer to use a local browser to run and test an application on a remote device. The remote device is coupled to a host machine and connected via a communication network to the browser. The infrastructure can stream a video feed of the display of the remote device to the browser, enabling the developer to examine the result of testing and development of the application running on the remote device. For applications that have features requiring audio input, the infrastructure can pair an external component, such as the host machine, as a virtual audio input device, mimicking an external microphone. The virtual audio input device can capture an audio file or an audio stream and provide the audio as input to the application running on the remote device thereby simulating the application receiving an input from an external microphone.

Abstract: The present disclosure relates to a method of controlling allocation of mobile devices (12-23) to frequency bands in a radio site (10), and a device (11) performing the method. In an aspect, a method of a radio base station (11) of controlling allocation of mobile devices (12-23) to frequency bands in a radio site (10) is provided. The method comprises estimating (S101) power consumption of the radio base station (11) caused by radio traffic of the mobile devices (12-23) in each frequency band of the radio site (10), determining (S102) whether or not power consumption of the radio base station (11) is decreased by reallocating at least one of the mobile devices (12-23) from one frequency band to another frequency band, while not exceeding a power headroom limit of said another frequency band, and if so reallocating (S103) said at least one mobile device from said one frequency band to said another frequency band.

Abstract: Disclosed is a method for monitoring a physical downlink control channel (PDCCH) in order to enable communication over a plurality of cells in a mobile communication system, including acquiring a cell index for a cell, wherein the cell index is user equipment (UE)-specific and is informed based on radio resource control (RRC) signaling, monitoring a first PDCCH on a common search space that is for system information and is defined on a single cell for the plurality of cells, monitoring a second PDCCH on a dedicated search space defined for the cell, wherein the cell is one among the plurality of cells, and the dedicated search space is defined for each of the plurality of cells, respectively, and receiving a physical downlink shared channel (PDSCH) on the cell based on the second PDCCH, wherein the cell index is associated with one downlink frequency configured by the RRC signaling.

Abstract: This application provides a method, includes: a first network node sends an inactivity timer of a terminal device to a second network node, the first network node receives an inactive state indication of the terminal device from the second network node, wherein the inactive state indication of the terminal device is used by the first network node to determine whether the terminal device to enter an inactive state, the first network node notifies the second network node that the terminal device enters the inactive state.

Abstract: We generally describe an apparatus (200, 300) for user plane traffic quality analysis in a wireless communication network, the apparatus (200, 300) comprising: an interface configured to be coupled to a user plane probe (214) arranged on a bidirectional user plane traffic flow path of user plane traffic flowing through the wireless communication network between a first terminal (202) and a second terminal (204) of the wireless communication network, and an estimation unit (706) coupled to the interface, wherein the estimation unit (706) is configured to estimate, based on a probing, by the user plane probe (214), of the user plane traffic flowing in a first direction (304) in a first segment (301) of the user plane traffic flow path from the first terminal (202) to the user plane probe (214), a user plane traffic quality of the user plane traffic flowing in a second direction (310) in the first segment (301) from the user plane probe (214) to the first terminal (202), wherein the first direction (304) is oppo

Abstract: A system, method, and computer program product for determining “impact quantify measure-based” service chains cross interferences. The method includes quantifying the impact of one service chain on another service chain and to what extent so as facilitate making an informed decision whether to garner more resources and to fine tune the computational services for the service chain. There is further provided beforehand a certainty of required computational resources and the providing the impact or interferences details of one service chain on another helps in minimization of service quality degradation failures. The framework further runs a method step to apply a mutual convexity method on service chains to aid in forecasting cross interferences between chains and includes a step wherein, interferences between both dependent and independent service chain is calculated and provided.

Abstract: A method of optical signal adjustment may include obtaining a number of bits per second of data transmission in a frequency channel of an optical network. The method may also include directing a reduction in a number of bits per symbol transmitted in the frequency channel and directing an increase in a number of symbols transmitted per second in the frequency channel to maintain the number of bits per second of data transmission in the frequency channel.

Abstract: In a wireless communication system wherein wireless stations transmit on a shared frequency band, each of the wireless station includes means for notifying a control device of environmental information that includes information on interference from outside, and for switching from an operational channel to an evacuation channel notified by the control device when interference from outside is detected on the operational channel, and the control device includes means for calculating an evacuation channel for each wireless station according to a predetermined control procedure based on the environmental information collected from the wireless station, and for notifying the wireless station of the evacuation channel.

Abstract: A user communications device having active and idle states operates in a cellular communications network in which user communications devices communicate via network communications devices of cells of the network. History data identifying the cells in which the user communications device has been present whilst in the idle state is maintained. This history data is used by the user communications device or by a network communications device to enable adjustment of cell selection/reselection parameters for the user communications device in the active state.

Abstract: The TIC environmental event sensor is a nickel-sized, ultra-thin circuit assembly, containing an extremely compact array of both environmental sensors and physical sensors, along with local and wireless access to all the sensor data, including BTLE & LoRa, as well as an electronic ink display for limited field access to sensor events in real time. The TIC is designed to capture changes in the sensor data in real time, and then log it for future examination. The most recent change will remain on the device's display. The changes can then be transmitted to a smart phone or tablet via BTLE, networked as an asset via LoRa, or locally scrolled at the device. The TIC is Ideal for tracking any variations in the surrounding conditions of an asset's travel, storage, or use.

Abstract: A Method and Apparatus for application layer measurement reporting in RRC_INACTIVE is provided. The method includes receiving an RRC reconfiguration message from the first base station containing the first other configuration1 and the other configuration2, receiving from the first base station an RRC release message containing a suspend configuration and a first terminal identifier and a second terminal identifier, storing the application layer measurement configurations included in said first other configuration1, monitoring paging based on said suspend configuration, receiving a paging message containing said first terminal identifier, releasing said other configuration2, transmitting an RRC resume request message containing said second terminal identifier to the second base station, receiving an RRC resume message containing the second other configuration1 from the second base station, and releasing the application layer measurement configuration indicated in said second other configuration1.

Abstract: Apparatuses and methods are disclosed for parameter setting. In one embodiment, a method includes receiving a first signaling from the management node at the second hierarchical level, the first signaling corresponding to a first predetermined model; obtaining at least one local measurement value, the at least one local measurement value indicative of a local state of the wireless communication network; processing the at least one local measurement value based on the received first predetermined model to identify at least one parameter value independent of the management node; and managing local state of the wireless communication network by performing at least one predetermined action associated with the identified at least one parameter value.

Abstract: An information security testing method and an information security testing system of an open radio access network (O-RAN) base station are provided. The information security testing method includes at least the following steps: configuring a processing device to execute a radio resource control (RRC) signaling integrity test process to determine whether or not an RRC signaling sent by a central unit (CU) is integrity protected; and in response to determining that the RRC signaling sent by the CU is integrity protected, configuring the processing device to execute an RRC signaling security test process.

Abstract: Scheduling communications using a plurality of wireless interfaces is provided. Signals are monitored that are received from a first antenna configured to send and/or receive first messages over a first message protocol. Using the signals, time slot information is updated that is indicative of which equally-sized consecutive future time slots the first antenna is predicted to transmit and/or receive the first messages. A transmission is scheduled of a second message over a second antenna configured to send and/or receive second messages over a second message protocol using the time slot information to avoid out-of-band emission (OOBE) interference.

Abstract: The present disclosure discloses a method and apparatus for processing information. The method for processing information comprises: retrieving, by a first base station, user context information of a User Equipment (UE) from a second base station by initiating a procedure to the second base station for retrieving the user context information, wherein the user context information doesn't include user history information; updating, by the first base station, bearer path information and resuming the user context information by initiating a path switch request message to a device in a core network; and performing, by the first base station, one or more of the following operations after the UE resumes to a connected state: re-starting to collect user history information, and re-retrieving user history information from the UE through an air interface.

Abstract: Disclosed are a radio communication apparatus, an antenna testing method and a user equipment (UE). The radio communication apparatus may include a radio frequency (RF) circuit, a testing circuit and an analysis circuit. The RF circuit includes a plurality of antennas configured to receive or transmit RF signals. The testing circuit is connected to the plurality of antennas and configured to sequentially test the plurality of antennas and send testing signals of the plurality of antennas to an analysis circuit. The analysis circuit is connected to the testing circuit and configured to determine an antenna from the plurality of antennas for transmitting the RF signals according to the testing signals of the plurality of antennas.

Abstract: Systems, methods, and instrumentalities are disclosed for a wireless transmit/receive unit (WTRU) autonomously synchronizing. For example, a WTRU may be configured to receive a downlink timing synchronization. The WTRU may be configured to determine a synchronization signal. The WTRU may be configured to determine a synchronization mode. The synchronization mode may be RRC CONNECTED mode. The synchronization mode may be RRC IDLE mode. The WTRU may communicate data to the network while in an unsynchronized state in an RRC IDLE and/or an RRC CONNECTED mode. The communication of data while unsynchronized may reduce latency relative to one or more of a random access channel (RACH) procedure, a resource radio control (RRC) connection establishment procedure, or a data packet scheduling, for example.

Abstract: A mobile network data analytics function node is described. The network data analytics function node obtains from a network function service consumer, a request for analytics of at least one load parameter for at least one network function service provider and obtains a load data from at least one network function service provider. The network data analytics function node performs filtering of the load data from the network function service provider to filter out load data responsive to said at least one load parameter, to determine the requested analytics of said at least one load parameter based on the filtered load data from the network function service provider, and provides, to the network function service consumer, the determined analytics of at least one load parameter for said at least one network function provider. The reporting message overhead and resource exhaustion can be reduced.

Abstract: A communication system includes a substrate, a plurality of antennas disposed on the substrate, and a radio frequency (RF) tag. A distance between the RF tag and at least one antenna among the plurality of antennas is detected based on a signal emitted by the RF tag and received by the at least one antenna.

Abstract: A procedure for the unified global registry and universal identification of products of biological origin for medicinal purposes is described. The method includes generation of a global and unique data storage vault for each product and related parties, one or more local data vaults associated with the global storage vault, one or more data profiles associated with the vaults, a unique and non-transferable public and private identifier associated with the global storage vault, one or more alphanumeric-hexadecimal translation maps associated with the public and private identifier, and a unique and non-transferable public identification code. The method further includes storing data in a database accessible by different parties depending on the data access rights. The method further includes identification of the data storage vault and the type of data stored through the unique and non-transferable identification code and automatically updating the information in the vaults and profiles stored in the database.

Abstract: Certain aspects of the present disclosure provide techniques wireless communication by a user equipment (UE), comprising receiving an uplink (UL) grant from a network entity, wherein the UL grant schedules the UE to transmit an UL channel transmission associated with a plurality of logical channels (LCs), and the UL grant indicates a modulation and coding scheme (MCS) for transmitting the UL channel transmission associated with the plurality of LCs, receiving a plurality of MCS offsets, and transmitting the UL channel transmission associated with one or more LCs of the plurality of LCs based on the MCS indicated in the UL grant and the plurality of MCS offsets.

Abstract: A method for avoiding undesired message transmissions from a user device to a RAN is implemented in a user device. The method includes receiving (202 or 302), from the RAN, a first value of the barring factor, and determining (206 and 210 or 306 and 310), based on a first probability corresponding to the first value, that access barring applies to a message transmission. The method also includes suspending (214 or 314) the message transmission while running a first timer (216 or 316) and, after the first timer expires or stops, either (1) if the first value does not correspond to a maximum probability of the different probabilities, determining (222 or 322) that the access barring is alleviated, or (2) if the first value corresponds to the maximum probability, continuing to suspend (224 or 326) the message transmission.

Abstract: A noise detection method includes: inputting a key audio signal with multiple frequencies to an audio device to be tested; measuring a first output audio signal emitted by the audio device to be tested; performing an audio analysis on the first output audio signal to generate a measurement signal; and comparing the measurement signal with a qualified signal to generate a comparison result, and determining whether the first output audio signal has noise based on the comparison result.

Abstract: A device may receive time domain PRB data associated with a plurality of base stations of a network, and may transform the time domain PRB data into frequency domain PRB data. The device may identify, based on the frequency domain PRB data, periodic interference patterns associated with the network, and may process periodic data associated with the periodic interference patterns, with a clustering model, to identify clusters of periodic interference patterns. The device may utilize a time offset analysis to link clusters and identify a transient periodic interferer, and may process cluster data associated with the clusters and the transient periodic interferer, and public transportation data, with a machine learning model, to predict a route associated with the transient periodic interferer. The device may perform one or more actions based on the route associated with the transient periodic interferer.

Abstract: Various arrangements for updating a radio unit (RU) of a cellular network are presented. A volume of cellular signals being handled by a first programmable processor of the RU and a second programmable processor of the RU may be analyzed. A determination can be made that one of the processors has sufficient available resources to handle the analyzed volume of cellular signals. The RU can cause cellular signals to be rerouted to one of the programmable processors while the other processor is taken offline for updating. The update process is performed such that UE in communication with the RU experience uninterrupted cellular network access.

Abstract: The present disclosure relates to a communication technique for combining IoT technology with a 5G communication system for supporting a higher data transmission rate than 4G systems; and a system therefor. The present disclosure can be applied to intelligent services (e.g., smart home, smart building, smart city, smart car or connected car, healthcare, digital education, retail, security- and safety-related services, etc.) on the basis of 5G communication technology and IoT-related technology.

Abstract: A special network device and method for using the same are described.

Abstract: Apparatuses, methods, and systems are disclosed for analytics-based policy generation. One apparatus (500) includes a processor (505) and a radio transceiver (525) that communicates over a mobile communication network. The processor (505) receives a request from the mobile communication network to report at least one type of usage data according to a reporting policy, the at least one type of usage data including battery usage data and/or network location data. The processor (505) transmits (710) a usage report (225) containing the usage data based on the reporting policy. The processor (505) further receives (715) and applies (720) a network policy (240) from the mobile communication network. The network policy (240) is dynamically generated by the mobile communication network based on at least one trend identified in the usage data.

Abstract: A method for providing an edge service includes a first security agent that performs data stream transmission with a plurality of endpoint computing devices through an edge link, and each endpoint computing device obtains, using the first security agent, an edge service provided by an edge server. The first security agent determines, based on a data stream transmitted between each endpoint computing device and the first security agent, an abnormal endpoint computing device in the plurality of endpoint computing devices. The first security agent generates link abnormality information, and the link abnormality information includes an address of the abnormal endpoint computing device. The first security agent sends the link abnormality information to the security controller. The security controller receives the link abnormality information, and generates edge link information including an address of a second security agent based on the link abnormality information.

Abstract: The present disclosure relates generally to network diagnostics, and more specifically to techniques for determining the health of customer premises equipment (CPE) devices. In certain examples, a scoring system can determine a health score for a CPE device, the health score indicating the health of the CPE device. The health score is determined by receiving, analyzing, and integrating information from different sources, including sources in addition to CPE diagnostic data for the CPE device at the current time. Such sources can include CPE diagnostic data for the CPE device at other times, CPE diagnostic data for other CPE devices related to the CPE device (e.g., in the same household or surrounding area as the CPE device), technical specifications of the CPE device (e.g., make, model and firmware of the CPE device), or per-equalization parameters obtained by the CPE device.

Abstract: Aspects of the subject disclosure may include, for example, receiving, over an uplink (UL) via a combination of coherent modular antenna arrays, first transmissions from a first user equipment (UE) and second transmissions from a second UE, wherein the first UE and the second UE are being served by the cell in multi-user (Mu)-multiple-input-multiple-output (MIMO) mode, determining, based on the first transmissions and the second transmissions, that a probability of the second UE interfering with the first UE in the UL satisfies a particular threshold, responsive to the determining, identifying an adjustment to an UL transmit power for the first UE, and causing the first UE to implement the adjustment to the UL transmit power. Other embodiments are disclosed.

Abstract: A system and method of determining an allergy impact profile of an individual are disclosed. The system and method may be employed to predict allergy impact environmental conditions may have on allergy symptoms of an individual and to recommend treatment of the individual in response to the predicted allergy impact.

Abstract: Systems and methods for dynamic network traffic manipulation are disclosed. According to one embodiment, in an information processing apparatus comprising at least one computer processor and executing a computer application a method for dynamic network traffic manipulation may include: (1) receiving, at a computer application, an identification of a test to be performed on a software application under test; (2) receiving, at the computer application, a parameter for the test; (3) establishing, by the computer application, a connection between a first endpoint and a second endpoint, wherein the software application under test communicates with the first endpoint and the second endpoint using a communication channel; (4) intercepting, by the computer application, a data packet to or from the software application under test; (5) processing the intercepted data packet to apply the test with the parameter; and (6) monitoring the software application under test.

Abstract: This disclosure provides systems, methods, and devices for wireless communication that support enhanced management of recovery timers in a wireless communication system. In a first aspect, a method of wireless communication includes an apparatus determining whether a recovery timer is currently running, the apparatus being configured for multi-subscriber identity module (SIM) communications including a first subscription and a second subscription. The apparatus is further configured to tune away from the first subscription to the second subscription when the recovery timer is determined not to be currently running, and determine to forego tuning away from the first subscription to the second subscription when the recovery timer is determined to be currently running. Other aspects and features are also claimed and described.

Abstract: Various embodiments of the present invention disclose a spatial reuse method and apparatus in a wireless local area network (WLAN) system. According to various embodiments of the present invention, an electronic device comprises a communication circuit for wireless communication with at least one external device and a processor operatively connected to the communication circuit, wherein the processor may determine an allowable interference level for spatial reuse in association with an adjacent basic service set (BSS) in a network environment where a plurality of electronic devices operate, determine a configuration to be used during uplink transmission by at least one mobile device connected to the electronic device on the basis of the adjacent BBS allowing the determined interference level, and transmit a trigger frame including the determined configuration to the mobile device by using the communication circuit. Various embodiments are possible.

Abstract: An example method includes receiving an encrypted biometric enrollment data and user identifier data. The encrypted biometric enrollment data includes at least one biometric enrollment sample from a user encrypted using an encryption key. The encryption key is generated based on a user secret and the user identifier is associated with the user. The user identifier is matched with a stored user secret. A decryption key is generated based on the stored user secret. The encrypted biometric enrollment data is decrypted using the decryption key. The at least one biometric enrollment sample is retrieved from the decrypted biometric enrollment data. The at least one biometric enrollment sample is processed using a biometric processing algorithm to generate a biometric reference template. A biometric reference template identifier uniquely identifying the biometric reference template is generated. An encryption key is generated based on the stored user secret and encrypts an enrollment confirmation message.

Abstract: A method in a communication network that supports dual connectivity includes generating a measurement configuration information element, IE, for measurement of a wireless channel between a user equipment, UE, and a secondary cell group that provides dual connectivity services to the UE, and transmitting the measurement configuration IE to the UE in a radio resource control, RRC, message.

Abstract: Provided are a method for fast cell setup. According to an embodiment of the present disclosure, the method includes receiving a cell group configuration including a list of cells, performing measurement on the cells, identifying at least one invalid cell among the cells included in the cell group configuration based on a result of the measurement, reporting information on the identified invalid cell.

Abstract: A plurality of access points configured to communicate with a subordinate wireless LAN terminal, an information collecting device configured to collect a frame respectively transmitted and received between the plurality of access points and the wireless LAN terminal, and extract information on communication quality of an access point of the plurality of access points from a header of the frame, and an information collecting server configured to acquire the information on the communication quality of the access point from the information collecting device, analyze the information to determine whether the communication quality is good or bad for each of the plurality of access points, and execute processing of externally displaying or notifying a result that is determined are included.

Abstract: Embodiments of the present disclosure describe methods, apparatuses, storage media, and systems for cell identification (ID) and beam ID detections in new radio (NR). The detections comprise NR primary synchronization signal (PSS)/secondary synchronization signal (SSS) detection, PBCH DMRS detection, SS reference signal received power (RSRP) measurement, and slot/SS burst boundary timing acquiring. Various embodiments describe how to detect a cell ID and a beam ID in millimeter wave (mmWave) operation. Other embodiments describe further details regarding how to detect NR cell and beam ID during intra-frequency measurements.

Abstract: The embodiments of the present disclosure relate to a method for notifying MDT information, including: performing MDT in a disconnected state by a first SIM card in the plurality of SIM cards to obtain MDT information; detecting whether a second SIM card in a connected state exists in the plurality of SIM cards after the first SIM card obtains the MDT information; sending request information to the second SIM card in response to the second SIM card existing, wherein, the request information is configured to request the second SIM card to notify a base station that the MDT information exists in the terminal; and sending, by the second SIM card, notification information to the base station, wherein the notification information is configured to notify the base station that the MDT information exists in the terminal.

Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present disclosure provides a method for supporting self-configuration and self-optimization in a wireless communication system.

Abstract: Disclosed is a system to prioritize multiple issues associated with a wireless telecommunication network. The system obtains the multiple issues associated with the wireless telecommunication network, where an issue among the multiple issues impacts a UE associated with the wireless telecommunication network. The system obtains a number of UEs impacted by the issue, an indication of importance of severity associated with the issue, and an indication of importance of current UE experience. Based on the number of UEs impacted by the issue, the indication of importance of severity of the issue, and the indication of importance of current UE experience, the system computes a priority associated with the issue. Based on the priority, the system prioritizes the multiple issues to obtain a prioritized list. The system provides the prioritized list indicating an order in which to resolve the multiple issues.

Abstract: The present disclosure provides a carrier aggregation capability reporting apparatus and method, so as to prevent a user equipment (UE) from repeatedly reporting capability information corresponding to a carrier combination supported by the UE, and reduce waste of signaling resources used for reporting. The method includes: determining, by the UE, information about a carrier combination supported by the UE and information about a sub-combination that is of the carrier combination and that is supported by the UE; and reporting, by the UE to a base station, the determined information about the carrier combination supported by the UE and the determined information about the sub-combination that is of the carrier combination and that is supported by the UE.

Abstract: In User Equipment (UE) at various geographic locations, circuitry exchanges TCP packets with radios, and the radios wirelessly exchange the TCP packets with wireless communication nodes. The circuitry determines TCP retransmission rates for the radios at the geographic locations. The circuitry estimates TCP retransmission rates for the radios at a new geographic location based on the TCP retransmission rates for the radios at the past geographic locations. The circuitry selects one of the radios based on the estimated TCP retransmission rates at the new geographic location. At the new geographic location, the circuitry exchanges new TCP packets with the selected one of the radios, and the selected one of the radios wirelessly exchanges the new TCP packets with one of the wireless communication nodes.

Abstract: Described herein are systems, methods, and software to monitor latency information in virtual desktop environments. In one example, a user computing system may obtain a first frame of video data from a second computing system, wherein the video data is streamed from the user computing system to the second computing system. The user computing system further identifies a first frame number for the first frame based on a code in the first frame, identifies a frame number for second frame of the video data to be streamed to the second computing system when first frame was received, and determines frame latency based on a difference between the first frame number and the second frame number.

Abstract: A load balancing method which includes a first radio access network node that receives load information of a first load type of a second radio access network node, where the first load type includes any one or more of the following: a network slice load, V2X load, and SUL load; and the first radio access network node obtains the load information of the first load type, so that load balancing can be performed based on a load status of a network slice, a load status of a V2X service, or a load status of a UL/SUL.

Abstract: Techniques for preserving battery life in poor signal conditions include an electronic device determining a coverage enhancement (CE) parameter associated with a link between the electronic device and a base station for a first point in time; determining, based on the CE parameter, that a signaling metric associated with the link for the first point in time is equal to or below a corresponding threshold; and in response to determining that the signaling metric is equal to or below the corresponding threshold, delaying transmission of one or more messages from the electronic device over the link until a second point in time that is later than the first point in time.

Abstract: A base station is disclosed, including an information size adjusting section configured to adjust a size of control information based on a first basic information size of control information mapped on a user equipment (UE) specific search space in a first component carrier. The base station also includes a transmitter configured to transmit the control information mapped on the UE specific search space. A first determination method for determining the first basic information size is different from a second determination method for determining a second basic information size of control information mapped on a common search space in the first component carrier. The first determination method for determining the first basic information size is different from a third determination method for determining a third basic information size of control information mapped on a search space in a second component carrier that is different from the first component carrier.