Abstract: Provided are a method and an apparatus for generating and transmitting feedback signals for a plurality of reference signals having different directionality, in a wireless communication system. A terminal may receive the plurality of reference signals having different directionality, and transmit, to a transmission end, a feedback signal including a beam index which indicates one of the plurality of reference signals.

Abstract: Disclosed is a method performed by a system of network nodes in a wireless communication network, for finding neighboring user equipments, UEs, with which a first UE (121) may be able to communicate directly. The system of network nodes includes a first base station, BS, (111), and the first UE is wirelessly connected to the first BS. The method comprises receiving, from a plurality of UEs (122, 123, 124, 125) wirelessly connected to the first BS (111) and from the first UE (121), power measurements performed on signals received from neighboring BSs (112, 113, 114, 115).

Abstract: According to the teachings herein, a wireless device enhances uplink channel estimation at a node in a supporting wireless communication network by beamforming its uplink reference signal transmission towards the node, and correspondingly compensates for the effect of that beamforming when receiving a downlink transmission that was adapted in dependence on the uplink channel transmission. Such processing provides significant advantages in Multiple-Input-Multiple-Output, MIMO, systems that use a potentially large number of antennas for downlink MIMO transmissions and assume reciprocity between the uplink and downlink channels. In particular, uplink beamforming increases the received signal quality of the uplink reference signal used for estimating the uplink channel, while “automatic” compensation by the wireless device of the corresponding downlink transmission obviates the need for the network to know which precoder was used for uplink beamforming, or even that uplink beamforming is in use.

Abstract: A method of creating a communication group based on wearable devices, and such a wearable device are disclosed. The method includes: acquiring the position information of the current wearable device and of the nearby wearable devices; calculating the distances of these nearby wearable devices from the current wearable device based on the position information; building up, by the current wearable device, communication connections with the nearby wearable devices that satisfy the preset conditions and thus creating the communication group. According to the disclosure, the current wearable device can automatically build up a communication group with the nearby wearable devices that satisfy the preset distance requirements, such that a user can expand his friendship circle.

Abstract: A terminal device including: a first network interface configured to perform a first wireless communication with a first device, the first network interface being configured to couple to a specified network via the first device, a second network interface configured to perform a second wireless communication with a second device, and a processor configured to: select one of the first network interface and the second network interface, the first network interface being selected when the second network interface not being configured to couple to the specified network via the second device, the second network interface being selected when the second network interface being configured to couple to the specified network via the second device, and control the selected one of the first network interface and the second network interface to perform a wireless communication.

Abstract: Embodiments provide a vehicle comprising a wireless transceiver for transmitting a request for radio presets to a plurality of vehicles within a predetermined proximity of the vehicle; a processor for generating a list of local radio stations based on radio presets information received by the wireless transceiver and a user preference for prioritizing the stations; and an audio system for playing audio received from a selected one of the local radio stations. Embodiments also include a method in a vehicle comprising sending, via a wireless transceiver, a request for radio presets to a plurality of vehicles within a predetermined proximity of the vehicle; generating, using a processor, a list of local radio stations based on radio presets information received by the wireless transceiver and a user preference for prioritizing the stations; and playing, via an audio system, audio received from a selected one of the local radio stations.

Abstract: A protective case is configured to receive a mobile device and to magnetically attach to another article and includes a front face mechanically connected to a plurality of side faces (the front face and side faces for detachably connecting to a mobile device), and a back face comprising at least one magnet for magnetically coupling an article comprising at least one magnet to said protective case.

Abstract: A radio-frequency module includes a multilayer substrate, an input switch, an output switch, and filters. A switch IC is disposed on a main surface of the multilayer substrate. The input switch is disposed in the switch IC and includes a first input terminal and first output terminals. The output switch is disposed in the switch IC and includes second input terminals and a second output terminal. The filters are disposed outside the switch IC and are connected to the first output terminals and the second input terminals. In a plan view of the multilayer substrate, the first input terminal and the first output terminals are disposed close to a first side of an exterior of the switch IC, and the second input terminals and the second output terminal are disposed close to a second side different from the first side of the exterior of the switch IC.

Abstract: Interference to a received signal is reduced in a wireless network, the interference comprising intermodulation products of at least a first signal and a second signal. Delayed interference signals comprising simulated intermodulation products are generated on the basis of the first signal and the second signal using a range of differing delay values and each of the delayed interference signals is correlated with the received signal to produce data representing a correlation for each delayed interference signal. At least one delay value is selected in dependence on a the data representative of the correlations and an interference signal comprising simulated intermodulation products generated from the first signal and the second signal using the at least one delay value is combined with the received signal.

Abstract: Method and Apparatus for performing power control on the power control commands transmitted on a forward link in a wireless communication system. The power level of the power control bits on the forward link are adjusted in response to power commands received on the reverse link. The mobile station measures the power level of the adjusted power control bits to measure the quality of the forward link.

Abstract: Apparatus and methods for wideband envelope tracking systems are disclosed herein. In certain implementations, an envelope tracker includes a DC-to-DC converter, a current digital-to-analog converter (DAC), an error amplifier, a feedback circuit, and an AC combiner. The current DAC receives a digital envelope signal, and uses the digital envelope signal to generate an envelope current. The feedback circuit is connected between an output and an inverting input of the error amplifier, and the envelope current is provided to the error amplifier's inverting input. Additionally, the AC combiner generates a power amplifier supply voltage by combining an output of the DC-to-DC converter and an output of the error amplifier.

Abstract: A beacon device connection method implemented by a beacon management server is provided. Also, a method for constructing a beacon network by connecting a plurality of beacon devices is provided. The beacon network construction method may be implemented by a master beacon connected with at least one slave beacon to control the slave beacon and connected with at least one neighboring master beacon or a beacon management server to exchange information.

Abstract: The use of UAV network cells may enable a wireless communication carrier to provide supplemental cellular network communication coverage to geographical areas. Geolocations of multiple user devices in a geographical area that is serviced by an unmanned aerial vehicle (UAV) network cell may be determined. Subsequently, operation condition data for the geographical area that affect at least one of UAV flight or UAV communication signal transmission or reception for the UAV network cell may be received. Accordingly, a flight trajectory that provides network coverage to one or more specific user devices in the geographical area may be generated based on the geolocations of the multiple user devices and the operation condition data. A control command is then sent to the UAV network cell to direct the UAV network cell to travel according to the flight trajectory.

Abstract: An Internet of Things (IoT) system and method including IoT sensors to measure data and forward the data to gateway devices, the gateway devices to receive the data and provide the data to a cloud infrastructure, and a coordinator to assign ownership of the IoT sensors to the gateway devices.

Abstract: The present invention relates to a wireless communication system. More specifically, a repeater operation method and apparatus are disclosed. A method for supporting a repeater by a base station in a wireless communication system according to an embodiment of the present invention may include the steps of: determining whether a relay communication about a target user equipment (UE) is required; and transmitting the repeater activation message to one or more repeater candidates. The activation message may include one or more parameters among an activation cycle, location, or a signal strength threshold for the one or more repeater candidates. A repeater satisfying the condition given by the one or more parameters from among the one or more repeater candidates can be activated as a repeater for the target UE.

Abstract: A system for managing communications is described, where embodiments comprise a mobile radio control station component capable of supporting multiple frequency bands and a computing device. The computing device comprises a processor, a computer-readable memory, and a set of computer-executable instructions. The set of computer-executable instructions are configured to provide a vehicular repeater, a local repeater, an Interoperability Gateway, a call recorder, and a graphical user interface. The computing device is in operable communication with the mobile radio control station component. A method of establishing an advanced audio patch between multiple radios is also described.

Abstract: Disclosed is a method for transmitting and receiving a signal by a device to device (D2D) terminal in a wireless communication system, according to an embodiment of the present invention, the method comprising the steps of: calculating a power headroom; and reporting the power headroom to a base station, wherein, if a terminal performs an uplink transmission to the base station on a first component carrier and performs a D2D transmission on a second component carrier, the terminal, when calculating the power headroom, considers transmission power related to a minimum coverage for D2D communication.

Abstract: A system and method configured to establish a communication connection between a vehicle and a remote computing device for data transmission. A beacon device is configured at a location to detect the presence of the vehicle, transmit an identity of the location to the vehicle, and communicate with the vehicle to determine an identity of the vehicle. The vehicle is configured to communicate with mobile devices of occupants of the vehicle. The remote computing device is connected to the beacon device via a data communication network and configured to determine, via the beacon device communicating with the vehicle, identification information of at least one mobile device of at least one occupant of the vehicle, and establish the communication connection between the computing device and the vehicle based at least in part on the identification information and the identity of the vehicle.

Abstract: A method for enabling a user terminal to receive packet data in a mobile communication system supporting a packet data service. In the method, a radio network controller receives a session start message from a core network, determines whether or not a frequency area (FA) including the user equipment supports the MBMS service, and transmits a notification message, which contains cell reselection information used when the user equipment moves into an FA supporting the MBMS service, to the user equipment when the user equipment is located in an FA, which does not support the MBMS service.

Abstract: The use of UAV network cells may enable a wireless communication carrier to provide supplemental cellular network communication coverage to geographical areas. Geolocations of multiple user devices in a geographical area that is serviced by an unmanned aerial vehicle (UAV) network cell may be determined. Subsequently, operation condition data for the geographical area that affect at least one of UAV flight or UAV communication signal transmission or reception for the UAV network cell may be received. Accordingly, a flight trajectory that provides network coverage to one or more specific user devices in the geographical area may be generated based on the geolocations of the multiple user devices and the operation condition data. A control command is then sent to the UAV network cell to direct the UAV network cell to travel according to the flight trajectory.