Abstract: An apparatus and method for transmitting a power headroom report in a communication system supporting multi-carriers are disclosed, by which a user equipment is enabled to transmit the power headroom report. According to the present invention, a user equipment calculates a power headroom for each of at least one activated serving cell using a maximum transmission power of the user equipment for each of at least one activated serving cell and transmits the power headroom report including the power headroom for each of the at least one activated serving cell and the maximum transmission power of the user equipment for each of the at least one activated serving cell to a base station. In this case, the power headroom includes an information on power status of the user equipment for each of the at least one activated serving cell.

Abstract: A wireless communicator includes: a signal strength meter configured to display a signal strength of a received signal; and an AGC circuit configured to perform AGC control for controlling an amplitude of the received signal be in a predetermined range, wherein the AGC circuit is further configured to perform switching, based on a predetermined condition, between two values to provide the switched value to the signal strength meter, one of the values being an AGC signal strength value for displaying the signal strength based on the AGC control, and another of the values being an expanded signal strength value for displaying the signal strength for which the AGC control is not operated based on a value obtained by detecting the received signal.

Abstract: A radio communication apparatus configured to perform frequency conversion on a first transmission signal modulated at a frequency in a specific frequency band into a second transmission signal having a frequency in a transmission frequency band, in which the apparatus includes: a circuit configured to generate a first calibration signal having a frequency higher than a highest frequency in the specific frequency band, and a second calibration signal having a frequency lower than a lowest frequency of the specific frequency band; a circuit configured to add the first and second calibration signals to the first transmission signal; a circuit configured to estimate a phase at a center frequency in the specific frequency band of the first transmission signal, and output a phase correction coefficient corresponding to the estimated phase; and a circuit configured to correct the phase of the first transmission signal, based on the phase correction coefficient.

Abstract: The present invention relates to an apparatus for measuring low frequency noise having shielding characteristics, and enhance the accuracy of measurement of low frequency noise of a sample by blocking the flow of electromagnetic waves in the gap between the chamber and the door.

Abstract: The present invention is a miniature portable projector device that is compatible with multiple file types and formats, and is small enough to fit on a keychain. It comprises of at least one I/O interface to receive/transfer data to/from a data source. A format processing unit converts the received data stored in a memory into a format adapted to be projected on a surface using the optical projection imaging component, provided at one end of device. Said device also features a fingerprint scanner that allows only the authentic user to unlock the device.

Abstract: A surveying system having a total station integrated into an unmanned aerial vehicle communicates with a plurality of mobile communication stations that are located on known site coordinates. By locating the mobile communication stations on known coordinates, the location of the aerial vehicle is precisely triangulated and controlled. Construction drawings are loaded into the system, thereby allowing the vehicle to locate itself at specific points designated in the drawings for the marking of on-site construction grid lines.

Abstract: A method includes: generating, via a testing signal source, a test transmission signal; receiving the test transmission signal at an input port of a socket device having the input port, an input coupler, a divider, a combiner, an output coupler and an output port; providing, via the input coupler, an input signal based on the test transmission signal; providing, via the divider, portions of the input signal to each of respective inputs of m receivers of a transceiver having n transmitters and the m receivers; combining, via the combiner, signals provided at the respective outputs of the n transmitters into a combined output signal; providing a coupled output signal to the input coupler; providing a measured output signal to the output port; providing, via the output port, the measured output signal to a receiving signal measuring device; and testing, via the receiving signal measuring device, the measured output signal.

Abstract: Disclosed is a method and system that may help control when a network will request (and receive) a remaining battery energy level report from a UE. Per the disclosure, a network that has an established radio-link-layer connection with the UE could track an amount of time in which the UE operates in a radio-link-layer connected mode. The network could then determine whether the amount of time in which the UE has operated in the radio-link-layer connected mode has exceeded a predetermined threshold amount of time. And responsive to determining that the amount of time in which the UE has operated in the radio-link-layer connected mode has exceeded the threshold amount of time, the network could cause the UE to report to the network the remaining battery energy level of the UE.

Abstract: An electronic device is provided that includes an antenna configured to receive a first signal and transmit a second signal. The electronic device also includes a transceiver configured to perform frequency conversion of the first signal and the second signal. The electronic device further includes a coupler path configured to transmit the second signal to the transceiver via a coupler, and a receive path configured to transmit the first signal, obtained from the antenna, to the transceiver. The electronic device also includes a switching unit configured to be connected with the transceiver and switch between the coupler path and the receive path.

Abstract: An apparatus, computer program, and method are provided for communicating an update to a subset of devices. In operation, information is received in association with a plurality of devices that have at least one application installed thereon. Further, an update for the at least one application is identified. Still yet, a subset of the plurality of devices is determined, based on the information. Such update for the at least one application is communicated to the subset of the plurality of devices.

Abstract: An integrated circuit is operable in two modes, including a test mode in which a pattern of variation is injected into a receiver's sampling clock and used to simulate jitter. Adding frequency offset, jitter or both, to this clock can be equivalent to adding jitter of an equal magnitude but opposite sign in a transmitted test signal. In this way, a clock can be produced that simulates timing variations that can be encountered during mission function operation of the device under test, while test input data is applied by local pattern generators or other data sources that, under test conditions, do not, or need not, exhibit such variations.

Abstract: Techniques are disclosed for creating and using a pattern of radio resources to be shared in a cell between devices using an enhanced-coverage mode and at least one other category of devices. An example method includes forming (810) a resource pattern, the resource pattern indicating an allocation of first radio resources in a first cell to a first type of wireless device and indicating an allocation of second radio resources in the first cell to a second type of wireless device. The resource pattern is sent (820) to a second network node of the wireless communication system, e.g., a network node serving a neighboring cell, or to at least one wireless device, or to both. The resource pattern may be used in scheduling by the first network node or the second network node, or both.

Abstract: A system may include a master test system and a plurality of slave test systems coupled to the master test system and/or each other. The system may include devices under test (DUTs) (also referred to herein as units under test (UUTs)) stored in test slots and coupled to the master test system or specific slave test systems over Ethernet, coaxial, or other cables. Each test slot may include a Faraday cage that shields the contents therein from electromagnetic signals outside the test slot. The master test system and/or the slave test systems may test the DUTs using specific sequences of tests according to testing protocols relevant to those DUTs. One or more test controllers, mobile devices, display devices, and/or input devices may be coupled to the test systems and be used to control specific test protocols performed by the test systems.

Abstract: An antenna test method and apparatus are disclosed. The antenna test method includes: A, placing a mobile terminal on a turntable in an anechoic chamber, and connecting the mobile terminal to a base station emulator via an anechoic chamber communication antenna; B, moving by the turntable sequentially to multiple theta and phi angles, transmitting by the base station emulator signals to the mobile terminal via an anechoic chamber measurement antenna, and receiving and decoding by the mobile terminal the signals and transmitting them back to the base station emulator, to obtain the horizontal and vertical polarization data of the anechoic chamber measurement antenna at steps of a first angle; C, performing interpolations to calculate the corresponding data at steps of a second angle as the step converts from the first angle to the second angle, and using the derived data to calculate the Total Isotropic Sensitivity (TIS).

Abstract: A network administrator utilizes a user client device to connect to a server within a network and provide a test plan comprises various tests to be performed on pairs of devices having physical connections within the network. The server selects, from the various pairs of devices, a pair of devices that are to be tested. Subsequently, the server transmits to each device of the selected pair of devices, instructions that may cause each device to perform the tests specified within the test plan. Once the tests have been completed, the server obtains the test results from the pair of devices and compiles these results.

Abstract: A cloud-based platform is provided offering large-scale and dynamic data analysis, processing, and exchange for telecommunications network design and deployment. It is configured to accommodate local, regional, and nationwide network planning and management needs. Information relevant to the network and individual design projects is organized with respect to a shared timeline that is shared with all project teams. All on-going and committed planned projects related to network performance are tracked on the shared timeline, with predicted network performance continually and automatically updated at regular intervals.

Abstract: A system may include a master test system and a plurality of slave test systems coupled to the master test system and/or each other. The system may include devices under test (DUTs) (also referred to herein as units under test (UUTs)) stored in test slots and coupled to the master test system or specific slave test systems over Ethernet, coaxial, or other cables. Each test slot may include a Faraday cage that shields the contents therein from electromagnetic signals outside the test slot. The master test system and/or the slave test systems may test the DUTs using specific sequences of tests according to testing protocols relevant to those DUTs. One or more test controllers, mobile devices, display devices, and/or input devices may be coupled to the test systems and be used to control specific test protocols performed by the test systems.

Abstract: A communication control device includes an acquisition unit configured to acquire measurement related information related to execution of measurement by a terminal device in an extension band, which is other than a band of a predetermined bandwidth in frequency bands allocated to a service provider; and a control unit configured to perform control related to the measurement by the terminal device in the extension band, on the basis of the measurement related information.

Abstract: A test and measurement system is disclosed. The system includes a data store with a data description of a received in-phase (I) quadrature (Q) symbol. The received IQ symbol is received from a transmitter associated with impairments, and the received IQ symbol is modified from a corresponding ideal IQ symbol by the impairments. A computer processor is coupled to the data store and generates an Error-Vector Magnitude (EVM) function that describes a difference between the received IQ symbol and the ideal IQ symbol in terms of a plurality of impairment parameters indicating the impairments. The processor then determines values for the impairment parameters that quantify the impairments. The values are determined by selection of values for the impairment parameters that minimize the EVM function.

Abstract: In an example, a wireless communication system and apparatuses thereof are described. In an example long-term evolution (LTE) network, a first base station hands over a connection to a second base station. The first base station may be a (femto) home eNodeB (HeNB) or (macro) eNodeB. The second base station may also be a HeNB or eNodeB connected to a different gateway. The first base station may send “Handover Request” on an X2 connection, identifying the gateway that the second base station is connected to as the correct gateway. After sending a “Handover Request Acknowledgement,” the second base station correctly establishes a tunnel to a connected gateway device.

Abstract: A device and a method are provided. In a terminal capable of at least one of a wireless charging function and a near field communication (NFC) function, the device displays operation states of the functions via an e-skin unit. Wireless charging efficiency, a charging state, and a communication state may be selectively or totally displayed to a user.

Abstract: A method and device are described that may be implemented by a user equipment (UE) that established a first connection to a first network component, the user equipment configured to establish a second connection with a second network component, the user equipment configured for a carrier aggregation functionality, the first network component serving as a primary serving cell (PCell) and the second network component serving as a secondary serving cell (SCell). The method may include determining a cycle comprising a first time when a SCell measurement is performed and a remainder second time, when the cumulative first and second times is less than a threshold cycle time, determining an interruption opportunity based on activity between the UE and the PCell and when the interruption opportunity is determined, deactivating a radio frequency (RF) chain associated with the SCell during the second time.

Abstract: An embodiment of the present invention provides a handover method, and embodiments of the present invention further provide a coordinator, a serving node, a target node, and a corresponding communications system. The method includes acquiring measurement results of a plurality of neighboring cells of a serving cell where a user equipment UE is located; acquiring information reflecting a load condition of at least one neighboring cell among the plurality of neighboring cells; and performing a handover decision according to the measurement results of the plurality of neighboring cells and the information reflecting the load condition of the at least one neighboring cell among the plurality of neighboring cells.

Abstract: Embodiments described herein provide for a distributed antenna system (DAS) including a host unit and a plurality of active antenna units (AAUs). The host unit is configured to send management information to the one or more RAN nodes. The one or more RAN nodes are configured to manage the RF signals based on the management information.

Abstract: A dynamic channel selection approach for wireless communication networks is provided by measuring an ineffective communication metric on a currently-used channel. The network can switch channels if the ineffective communication metric from a device on the network satisfies a channel selection condition. To change the wireless communication network to the new channel, all network devices in the wireless communication network are instructed to switch to the new channel. As network communications start on the new channel, the ineffective communication metric measurements begin again on the new channel. Communications on the new channel continue until the channel selection condition is satisfied on the new channel, at which point another random selection of a channel is executed. The process continues in such iterations during the operation of the network and its network devices.

Abstract: A method and system for selecting an optimal DRX configuration for a User Equipment (UE) in a communication network is provided. An expression for expected maximum delay experienced by a packet arriving during the off-duration is derived for any packet arrival process (either known arrival process or unknown arrival process). Further, the method for computing the active duration in any DRX cycle with the expected delay to be less than a given threshold by considering all the timers in the communication network is provided. The DRX cycle configuration with minimum active duration is selected as optimal DRX configuration by the UE and UE informs the optimal DRX configuration to the network.

Abstract: Radio-frequency performance of wireless communications circuitry on an electronic device under test (DUT) may be tested without external test equipment such as signal analyzers or signal generators. A first DUT may transmit test signals to a second DUT. External attenuator circuitry interposed between the DUTs may attenuate the test signals to desired power levels. The second DUT may characterize and/or calibrate receiver performance by generating wireless performance metric data based on the attenuated test signals. A single DUT may transmit test signals to itself via corresponding transmit and receive ports coupled together through the attenuator. The DUT may generate performance metric data based on the test signals. The DUT may include feedback receiver circuitry coupled to an output of a transmitter via a feedback path and may characterize and/or calibrate transmit performance using test signals transmitted by the transmitter and received by the feedback receiver.

Abstract: Blind interference cancellation is described for wireless networks in which a subject base station or cancellation apparatus obtains semi-static information for at least one of its neighboring cells. The base station measures the noise level of each of the neighboring cells based on samples it takes of uplink transmissions in each of the neighboring cells. The neighboring cells are then ranked for interference cancellation based on their relative noise levels. The base station performs discontinuous transmission (DTX) detection to identify at least one interfering user equipment (UE) in the neighboring cell and cancels interference attributable to those identified interfering UEs. The DTX detection and cancellation are then repeated for the remaining neighboring cells in the order they are ranked.

Abstract: A method and corresponding apparatus configured to collect raw data from a plurality of wireless devices. The raw data includes activity recorded when the wireless devices are at a selected topographic region. The raw data is combined to produce aggregated data representative of the activities of the individual wireless devices. Either the aggregated data or the raw data are selected for analysis depending on whether the raw data meets a threshold activity or subscriber density level. The selected data are analyzed to identify activity patterns of users of the wireless devices.

Abstract: [Object] To achieve more flexible DRX. [Solution] Provided is a communication control apparatus including: a selection unit configured to select a paging segment from a plurality of paging segments that are repeatedly present during a period having a length of a first discontinuous reception (DRX) cycle for a terminal apparatus; and a control unit configured to perform paging for the terminal apparatus during the selected paging segment if performing the paging. The length of the first DRX cycle is not divisible by a length of each of the plurality of paging segments.

Abstract: A coherent optical receiver that is capable of obtaining separate estimates of the I/Q phase imbalances caused by the front-end circuits of the receiver and transmitter. In an example embodiment, the receiver's I/Q imbalance is estimated using equalization coefficients of a first digital equalizer located upstream from the carrier-recovery module in the train of digital-signal processing implemented at the receiver, whereas the transmitter's I/Q imbalance is estimated using equalization coefficients of a second digital equalizer located downstream from the carrier-recovery module. The receiver DSP can then use the first estimate to carry out signal processing that reduces adverse effects of the receiver's I/Q imbalance on data recovery at the receiver. The receiver can also provide the estimate of the transmitter's I/Q phase imbalance to the transmitter, which can then perform digital signal pre-distortion directed at compensating that I/Q imbalance at the transmitter.

Abstract: A method and an apparatus are provided for receiving information by a terminal in a wireless communication system. The method includes transmitting, to a base station, a request message including a preamble; receiving, from the base station, a response message including uplink resource information determined based on the preamble; determining at least one of downlink channel information and uplink transmission capability corresponding to a specific uplink transmission; and transmitting, if an information request message is received from the base station, the at least one of the downlink channel information and the uplink transmission capability to the base station.

Abstract: A configurable RF transmit/receive (TX/RX) multiplexer, which includes a group of RF TX bandpass filters, a group of RF TX switching elements, and a group of RF RX bandpass filters; is disclosed. Each of the group of RF RX bandpass filters is coupled to a first common connection node. Each of the group of RF TX switching elements is coupled between a corresponding one of the group of RF TX bandpass filters and the first common connection node, which is coupled to a first RF antenna.

Abstract: A node within a wireless mesh network is configured to forward a high-priority message to adjacent nodes in the wireless mesh network by either (i) transmitting the message during successive timeslots to the largest subset of nodes capable of receiving transmissions during each timeslot, or (ii) transmitting the message on each different channel during the timeslot when the largest subset of nodes are capable of receiving transmissions on each of those channels.

Abstract: A GPS OTA testing method and system is provided. The GPS OTA testing method comprises: placing a terminal under test on a rotating table in a darkroom, and generating a GPS signal by a GPS satellite signal generator in the darkroom; acquiring the satellite signal strength at each of the angles and in each of the polarization directions, and forming a signal strength direction map; searching for an optimal angle and an optimal polarization direction and acquiring a sensitivity corresponding to the optical angle and the optimal polarization direction; and acquiring a sensitivity at each of the angles and in each of the polarization directions according to the sensitivity corresponding to the optimal angle and the optimal polarization direction and according to the signal strength direction map and integrating the sensitivities to acquire an antenna signal strength.

Abstract: A method and an apparatus for efficiently transmitting or reporting a Power Headroom Report (PHR) of a User Equipment (UE) are provided. The method of transmitting the PHR of the UE in a mobile communication system includes configuring an extended PHR including an indicator corresponding to a variation factor of a maximum transmission power of the UE, and transmitting the extended PHR from the UE to a Base Station (BS). The BS may be notified of a maximum transmission power of the UE and a variation factor corresponding to the maximum transmission power in order to enable efficient scheduling.

Abstract: Methods and apparatuses are provided for mitigating interference among access points, and/or devices communicating therewith, in unplanned network deployments. Based on determining that one or more served devices potentially interfere with one or more access points, an inter-frequency handover (IFHO) threshold or data rate can be adjusted for the device to cause IFHO or reduce occurrence of interference, and/or a coverage area can be modified so the device can communicate with one or more other access points to mitigate potential interference. Based on determining interference from one or more devices served by other access points, an access point can switch operating modes to a hybrid or open access point to allow the one or more devices to handover to the access point, and/or can boost downlink transmit power to cause the one or more devices to perform IFHO from the other access points to mitigate potential interference.

Abstract: A radio communication apparatus including: an antenna configured to receive a frame including reference signals and including other signals corresponding to radio resources to which channels are mapped, and a processor configured to acquire degree of usage of the radio resource, to calculate a reception quality of the reference signals, and to adjust the reception quality in accordance with the degree.

Abstract: A request is received over a network to resolve a problem relating to a networked user device. The request is accepted in order to provide user service. Based on the request, one of multiple available diagnostic algorithms is selected to analyze user data related to a user's account to identify symptoms of the problem and diagnose a cause of the symptoms identified.

Abstract: A method and an apparatus for efficiently transmitting or reporting a Power Headroom Report (PHR) of a User Equipment (UE) are provided. The method of transmitting the PHR of the UE in a mobile communication system includes configuring an extended PHR including an indicator corresponding to a variation factor of a maximum transmission power of the UE, and transmitting the extended PHR from the UE to a Base Station (BS). The BS may be notified of a maximum transmission power of the UE and a variation factor corresponding to the maximum transmission power in order to enable efficient scheduling.

Abstract: A method and an apparatus for efficiently transmitting or reporting a Power Headroom Report (PHR) of a User Equipment (UE) are provided. The method of transmitting the PHR of the UE in a mobile communication system includes configuring an extended PHR including an indicator corresponding to a variation factor of a maximum transmission power of the UE, and transmitting the extended PHR from the UE to a Base Station (BS). The BS may be notified of a maximum transmission power of the UE and a variation factor corresponding to the maximum transmission power in order to enable efficient scheduling.

Abstract: One aspect of this disclosure provides an apparatus for wireless communication. The apparatus comprises a low noise amplifier (LNA), an attenuator, and a processing system. The attenuator is configured to receive a signal from the LNA, generate a first attenuated signal based on the received signal, and generate a second attenuated signal based on the received signal. The processing system is configured to measure a first signal strength of the first attenuated signal at a position and measure a second signal strength of the second attenuated signal at the position. The processing system is further configured to determine a first value based on the first signal strength and the second signal strength and determine a second value based on the first attenuated signal and the second attenuated signal. The processing system is also configured to adjust a current of the LNA if the first value exceeds the second value.

Abstract: A method and an apparatus for efficiently transmitting or reporting a Power Headroom Report (PHR) of a User Equipment (UE) are provided. The method of transmitting the PHR of the UE in a mobile communication system includes configuring an extended PHR including an indicator corresponding to a variation factor of a maximum transmission power of the UE, and transmitting the extended PHR from the UE to a Base Station (BS). The BS may be notified of a maximum transmission power of the UE and a variation factor corresponding to the maximum transmission power in order to enable efficient scheduling.

Abstract: A method and an apparatus for efficiently transmitting or reporting a Power Headroom Report (PHR) of a User Equipment (UE) are provided. The method of transmitting the PHR of the UE in a mobile communication system includes configuring an extended PHR including an indicator corresponding to a variation factor of a maximum transmission power of the UE, and transmitting the extended PHR from the UE to a Base Station (BS). The BS may be notified of a maximum transmission power of the UE and a variation factor corresponding to the maximum transmission power in order to enable efficient scheduling.

Abstract: Disclosed are a data training device and a semiconductor device. The data training device includes a write controller configured to align write data, a read controller configured to latch data applied from the write controller and sequentially output the latched data, and an offset compensator configured to adjust a current flowing through a power supply voltage application terminal and a ground voltage application terminal in correspondence to a write signal and a read signal, thereby compensating for an offset in the write controller and the read controller.

Abstract: A method and an apparatus for efficiently transmitting or reporting a Power Headroom Report (PHR) of a User Equipment (UE) are provided. The method of transmitting the PHR of the UE in a mobile communication system includes configuring an extended PHR including an indicator corresponding to a variation factor of a maximum transmission power of the UE, and transmitting the extended PHR from the UE to a Base Station (BS). The BS may be notified of a maximum transmission power of the UE and a variation factor corresponding to the maximum transmission power in order to enable efficient scheduling.

Abstract: A network device may receive a subscriber's activity data for a plurality of network resources associated with the subscriber. The subscriber's activity data may be analyzed and a tailored notification instruction may be provided for alerting the subscriber.

Abstract: A method and an apparatus for efficiently transmitting or reporting a Power Headroom Report (PHR) of a User Equipment (UE) are provided. The method of transmitting the PHR of the UE in a mobile communication system includes configuring an extended PHR including an indicator corresponding to a variation factor of a maximum transmission power of the UE, and transmitting the extended PHR from the UE to a Base Station (BS). The BS may be notified of a maximum transmission power of the UE and a variation factor corresponding to the maximum transmission power in order to enable efficient scheduling.

Abstract: A method and an apparatus for efficiently transmitting or reporting a Power Headroom Report (PHR) of a User Equipment (UE) are provided. The method of transmitting the PHR of the UE in a mobile communication system includes configuring an extended PHR including an indicator corresponding to a variation factor of a maximum transmission power of the UE, and transmitting the extended PHR from the UE to a Base Station (BS). The BS may be notified of a maximum transmission power of the UE and a variation factor corresponding to the maximum transmission power in order to enable efficient scheduling.

Abstract: Embodiments of the present invention provide improved systems and methods for adjusting system tests based on detected interference. In one embodiment, a system comprises a host unit; a system test controller to control the performance of system tests, wherein a system test to detect the reception of an interfering signal comprises disabling the generation of tones for transmission through the communication system. The system also comprises multiple remote antenna units communicatively coupled to the system test controller to transmit signals to multiple wireless terminals, wherein a remote antenna unit comprises: an antenna; a transceiver, coupled to the antenna; a signal detector that measures reverse and forward power of signals transmitted to and received from the antenna; and a microcontroller to control the antenna unit, wherein upon receiving a command to perform interference testing, the microcontroller adjusts a subsequent test based on measurements of the reverse power by the signal detector.