Abstract: A method and apparatus for testing radio-frequency antenna elements are disclosed.

Abstract: A handover method in a master-slave network, and a master device, and slave devices are provided. The method includes when a master device or a first slave device determines that a user device needs to be handed over to a second slave device, the first slave device sends, to the second slave device, a first identifier of a first network interface allocated by the first slave device to the user device, and first network connection information used after the user device establishes a connection to the first network interface of the first slave device. The first identifier of the first network interface and a second identifier of the user device correspond on a one-to-one basis. The first slave device deactivates the first network interface and the second slave device activates a second network interface.

Abstract: A packet error rate estimator is configured to estimate packet error rate (PER). In an example, power or energy is calculated in one or more streams of I/Q samples over a period of time. The power or energy may be calculated for periods of time, e.g., bit-length periods of time, and a maximum value of bit-length power or energy may be selected over a packet-length period of time. The maximum power or energy associated with each stream of I/Q samples over the period of time may be compared to at least two threshold values. Each threshold value may be associated with an expected PER. Based at least in part on the comparing, and which of a plurality of threshold vales were (or were not) exceeded, a PER may be estimated for each stream of I/Q samples. The PER may be used to select a channel plan with less radio frequency noise.

Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. In one aspect, the example method may include generating a data frame including a Medium Access Control (MAC) header or a physical layer (PHY) header. The MAC header or the PHY header of the data frame may include transmit power related information. The transmit power related information may include at least one of: a maximum transmit power, power backoff per modulation and coding scheme information, or an actual transmit power. The method may include transmitting the data frame to a second device.

Abstract: Various arrangements are presented for controlling a mesh network. An electronic device may determine an occupancy state of a structure. In response to determining that the structure is not occupied, the electronic device may determine whether each node of the mesh network is in communication with at least one device that currently needs wireless communications, wherein the mesh network comprises a plurality of nodes. Power consumption of at least one node of the plurality of nodes of the mesh network may be adjusted based on determining whether each node of the mesh network is in communication with at least one device that currently needs wireless communications.

Abstract: The present application discloses a method for transmitting uplink signals through multiple cells in a wireless communication system. Particularly, the uplink signal transmission method comprises: a step of receiving a first downlink signal at a first timing through a first cell and receiving a second downlink signal at a second timing through a second cell; a step of transmitting a first uplink signal, corresponding to the first downlink signal, through the first cell after a first processing time has elapsed since the first timing; and a step of transmitting a second uplink signal, corresponding to the second downlink signal, through the second cell after a second processing time has elapsed since the second timing, wherein, if the first uplink signal and the second uplink signal are transmitted at the same timing, uplink transmission power is allocated first to the uplink signal corresponding to the downlink signal received at the preceding timing between the first timing and the second timing.

Abstract: Drone-based wireless communications systems are provided, as are methods carried-out by such wireless communications systems. In one embodiment, the wireless communications system includes a Satellite Signal Transformation (SST) unit and a plurality of aerial network drones, which can be deployed over a designated geographical area to form a multi-drone network thereover. During operation, the SST unit transmits a network source signal, which contains content extracted from a satellite signal. The multi-drone network receives the network source signal, disseminates drone relay signals containing the content through the multi-drone network, and broadcastings user device signals containing the content over the designated geographical area.

Abstract: A repeater system including one or more donor antennas, one or more server antennas and a repeater integrated with a pole.

Abstract: A terminal device includes at least one processor and a transceiver. The at least one processor is configured to execute computer readable instructions to generate a list of a plurality of other terminal devices located within a threshold range from the terminal device via short-range wireless communication. The transceiver is configured to transmit, in response to selection of a set of terminal devices from among the plurality of other terminal devices included in the list, a request to establish an association with users corresponding to terminal devices in the selected set of terminal devices.

Abstract: In one implementation, interference generated by a constellation of satellites is mitigated. Each satellite is configured to provide multiple beams that define a coverage footprint. Anticipated positions are determined for satellites. Based on the anticipated positions, a determination is made that, during a defined period of time, portions of a coverage footprint for a first satellite will be covered by coverage footprints for other satellites. Based on this, a beam assignment for the first satellite is defined in which a first subset of beams configured to provide coverage of a first portion of the first coverage footprint are inactive, and a beam assignment for a second satellite is defined in which a second subset of beams are active, where the second subset of beams provide coverage within the first portion of the first coverage footprint.

Abstract: Provided is a method and device for inter-device communication, the method comprising: a first terminal device is determined to be a central terminal device for a first group, wherein the first group comprises the central terminal device and at least one member terminal device; and the first terminal device allocates a first radio resource for a second terminal device, such that the second terminal device carries out inter-device communication according to the first radio resource, wherein the second terminal device belongs to the member terminal devices of the first group. The present invention is capable of improving the efficiency and reliability of inter-device communication.

Abstract: A method includes storing a log of pairing events between the stylus and each of a plurality of digitizer systems from which the stylus is configured to receive input and defining a search protocol to identify which digitizer system from the plurality of digitizer systems is providing input to the stylus based on the log. The method also includes searching for the digitizer system that is communicating with the stylus based the input detected and transmitting signals from an interacting tip of the stylus using a protocol configured for communicating with the digitizer system identified during the searching. The log of pairing events is stored while a user is operating a stylus and the search protocol is dynamically defined based on the log.

Abstract: A filter module (20) includes a filter circuit (22) that includes switches (221SW and 224SW), a pass band of the filter circuit (22) being switched in accordance with switching between ON and OFF of the switches (221SW and 224SW); and an impedance matching circuit (21) that is disposed in at least one of a preceding stage and a subsequent stage of the filter circuit (22) and that includes a switch (212SW), an element value for achieving impedance matching being switched in the impedance matching circuit (21) in accordance with switching between ON and OFF of the switch (212SW). The switches (221SW and 224SW) and the switch (212SW) synchronize with each other regarding timing of switching between ON and OFF.

Abstract: Apparatuses, methods, and systems for beamforming using tunable passive time-delay structures are disclosed. One apparatus includes a node, wherein the node includes a passive time-delay structure, wherein the passive time-delay structure is operative to generate a plurality of delayed signals, wherein each of the plurality of delayed signals is a delayed version of a communication signal, a tunable element, the tunable element operative to introduce a variable delay to the communication signal propagating through the passive time-delay structure, an antenna array, wherein the antenna array generates a beamforming pattern corresponding the passive time-delay structure, and a phase delay adjust control operative to adjust the tunable element of the passive time-delay structure, wherein a direction of the one or more beams of the beamforming pattern changes depending upon tuning of the tunable element.

Abstract: A terminal device includes at least one processor and a transceiver. The at least one processor is configured to execute computer readable instructions to generate a list of a plurality of other terminal devices located within a threshold range from the terminal device via short-range wireless communication. The transceiver is configured to transmit, in response to selection of a set of terminal devices from among the plurality of other terminal devices included in the list, a request to establish an association with users corresponding to terminal devices in the selected set of terminal devices.

Abstract: Methods and apparatus for estimating a Citizens Broadband Radio Service Device's (CBSD's) coverage area using user equipment (UE) timing advance and/or power headroom information and allocating resources based on the estimate. In an exemplary method embodiment a Spectrum Access System: (i) receives, from a CBSD, user equipment (UE) information including at least one of timing advance or power headroom information for one or more UEs in communication with the CBSD; (ii) estimates, based on the received first UE information, a first CBSD coverage area; and (iii) makes a first resource allocation to the CBSD based on the estimated CBSD coverage area, the first resource allocation including an allocation of at least one of a frequency bandwidth allocation or transmission power allocation to the CBSD.

Abstract: The present teachings disclose implementations of a UE and a method for providing a Narrowband Internet of Things (NB-IoT) network, the method including: receiving an NB-IoT downlink over a forward link; obtaining MAC configuration parameters, a transmit-timing offset and a transmit-frequency offset; pre-adjusting, to align with a return link timing and a return link frequency, a transmit-timing with the transmit-timing offset and a transmit-frequency with the transmit-frequency offset; requesting, based on the MAC configuration parameters and after the pre-adjusting, a connection with a Random-Access Preamble (RAR) over an NB-IoT uplink via the return link; and establishing the connection upon receiving a Random-Access Response (RAR), where a Round Trip-Time (RTT) from a transmitting antenna to a receiving antenna is greater than 67 microseconds (us), and both the NB-IoT downlink and the NB-IoT uplink use a mostly unchanged NB-IoT standard waveform.

Abstract: Wireless mesh networking protocols for directional transmissions in the PHY layer over multiple hops between a mix of mesh and non-mesh stations (STAs). Joint beamforming (BF) training and mesh network discovery is described including adaptive signaling with the mesh network. The mesh networking protocol can be utilized in a mix of wireless nodes including portals, access points (APs), personal control points (PCPs), and mesh stations (STAs).

Abstract: Embodiments of the disclosure relate to calibrating a power amplifier. The power amplifier calibration circuit is configured to provide a plurality of bias signal combinations each including a respective first bias signal and a respective second bias signal to the power amplifier. Power amplifier performance parameters for each of the bias signal combinations can be measured and provided to a control circuit in the power amplifier calibration circuit. The control circuit is configured to rank the measured power amplifier performance parameters based on predefined ranking criteria and determines a selected bias signal combination that can optimize the power amplifier performance parameters of the power amplifier. As such, it is possible to calibrate the power amplifier to operate at a balanced performance level, thus helping to improve radio frequency (RF) coverage and performance of the remote unit in a wireless distribution system (WDS).

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.