A transmitter is configured to communicate with a multiplicity of receivers, and is configured to transmit first data, the first data including a non-unique addressing information addressing a subset of the multiplicity of receivers, the subset including at least two receivers, the transmitter further being configured to transmit second data, the second data including a further addressing information or transmitted according to a further addressing information, the addressing information addressing one receiver (or one group of receivers) of the subset of the multiplicity of receivers.

An information processing apparatus which is capable of identifying an exact distance to a transmitting apparatus. A received radio wave intensity is measured when a radio wave transmitted from a transmitting apparatus via a short-range wireless communication is received, and a distance to the transmitting apparatus is identified based on a distance management table in which the received radio wave intensity and a distance associated with the received radio wave intensity are managed. A received radio wave intensity at a reference position a predetermined distance away from the transmitting apparatus is measured. The distance management table is calibrated based on the measured received radio wave intensity at the reference position.

The present invention relates to a wireless communication system, and more specifically, to a method and an apparatus for transmitting an RS (Reference Signal) from a transmission end. The present invention relates to an RS transmission method and an apparatus therefore, comprising the steps of: confirming RS resources which are defined according to each layer; and transmitting the precoded RS for the layers to a receiving end through a multiple antenna, wherein the RS resource includes a 1.sup.st index for indicating an RS resource pattern group in which the precoded RS is mapped within a resource block and a 2.sup.nd index for indicating a code resource for multiplexing the precoded RSs within the RS resource pattern group.

The present invention relates to a wireless communication system, and more specifically, to a method and an apparatus for transmitting an RS (Reference Signal) from a transmission end. The present invention relates to an RS transmission method and an apparatus therefore, comprising the steps of: confirming RS resources which are defined according to each layer; and transmitting the precoded RS for the layers to a receiving end through a multiple antenna, wherein the RS resource includes a 1.sup.st index for indicating an RS resource pattern group in which the precoded RS is mapped within a resource block and a 2.sup.nd index for indicating a code resource for multiplexing the precoded RSs within the RS resource pattern group.

Systems and methods for high-speed non-destructive inspection of a half- or full-barrel-shaped workpiece, such as a barrel-shaped section of an aircraft fuselage. Such workpieces can be scanned externally using a mobile (e.g., translating) arch gantry system comprising a translatable arch frame disposed outside the fuselage section, a carriage that can travel along a curved track carried by the arch frame, a radially inward-extending telescopic arm having a proximal end fixedly coupled to the carriage, and an NDI sensor unit coupled to a distal end of the telescoping arm. The stiffeners of the fuselage sections can be scanned using a mobile scanner platform disposed inside the fuselage section, which platform comprises a radially outward-extending telescopic arm rotatably coupled to a mobile (e.g., holonomic or linear motion) platform and an NDI sensor unit coupled to a distal end of the telescoping arm. The scan data is matched with position data acquired using any one of a plurality of tracking systems to enable the display of NDI features/flaws on a three-dimensional representation of the workpiece.

Systems and methods are provided for checking many users in to a location using a Bluetooth® low energy (BLE) beacon. The provided systems and methods may allow a BLE beacon to facilitate a check in with a remote server that processes check ins and then disconnect from the device used to check in. The device may be assigned a unique identifier that may be broadcast from the device during the check in so that the BLE beacon can quickly scan for the identifier and connect with the device based on the identifier to provide content and other information to the device.

A method at a sensor module within a sensor system for communicating with a gateway, the method including storing a timing profile for communications with the gateway; waking a radio core of the sensor module at a threshold time prior to a beacon signal being expected from the gateway; sampling a channel for the beacon signal at the radio core; if the beacon signal is detected: waking a processor on the sensor module; exchanging communication with the gateway; and powering down the processor and radio core upon completion of the exchanging communication.

Systems and methods for determining semantic travel modes are provided. In one embodiment, a method can include obtaining a plurality of location reports from a user device. Each of the plurality of location reports can include at least a set of data indicative of an associated location and time. The method can further include determining a travel period associated with the user device based on the plurality of location reports. The method can include obtaining one or more personalization signals that include a set of data associated with a semantic travel mode. The method can include determining that the user device is associated with the semantic travel mode during the travel period based at least in part on the plurality of location reports and the one or more personalization signals.

A client access point joins a wireless network over a wireless connection in order to allow stations access to the wireless network. To join, the client access point (having a wireless connection to a mesh network) receives a beacon frame with unique identifiers of authorized client access points from a host access point (having a wired connection to the mesh network). Responsive to a unique identifier of the beacon frame matching the unique identifier of the client access point, a connection request for a connection is sent. A connection response confirming configuration of the client access point with the host access point in accordance is received.

A method for configuring a flow-based quality of service (QoS), configuring a bearer-based QoS, and introducing a new layer above a packet data convergence protocol (PDCP) layer in order to process the flow-based QoS are provided. An operation of the PDCP layer to support the new layer is also provided. The disclosure relates to a communication method and system for converging a fifth generation (5G) communication system for supporting higher data rates beyond a fourth generation (4G) system with an Internet of things (IoT) technology. The 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 or connected car, health care, digital education, smart retail, security and safety services.