According to some embodiments, a method for use in a wireless device of performing radio resource management (RRM) measurements for mobility in a wireless network comprises obtaining a measurement configuration for measuring mobility signals in connected mode. The measurement configuration includes a reference signal type. The reference signal type indicates a particular type of reference signal of a plurality of possible reference signal types (e.g., PSS, SSS, DMRS, CSI-RS). The method further comprises configuring the wireless device to measure a reference signal of the indicated type; receiving the reference signal of the indicated type; and measuring the reference signal according to the measurement configuration.

Systems and methods for point to multipoint communications are provided. In one example, a system includes one or more modal antennas. Each modal antenna is configured to operate in a plurality of modes. The system can include a transceiver configured to communicate with a plurality of client devices over a wireless communication medium via the one or more modal antennas over a plurality of frames. The system can include one or more control devices configured to control the operation of the one or more modal antennas. For each of the plurality of frames communicated to one of the plurality of client devices, the one or more control devices are configured to determine a selected mode of the plurality of modes to communicate during the frame and to operate at least one of the one or more modal antennas in the selected mode during the frame.

A satellite-based very-high-throughput system is provided and a web-caching system based on a high-altitude platform station, an aerostat for example, having the advantage of decreasing the throughput required over the feeder link without however requiring a cache server to be installed on board the satellite.

Systems and methods for dual-technology air traffic tracking are disclosed. An autonomous aerial vehicle (AAV) may include a low-power dual-technology transponder configured for transmitting real-time tracking data of the AAV in outbound tracking messages, using both first and second transmission technologies specified for operation within a common flight tracking system. The AAV may further include a global positioning satellite (GPS) system, one or more processors, and memory storing instructions for carrying out dual-technology tracking. Operations may include determining real-time tracking data of the AAV from the GPS system, and broadcasting outbound tracking messages alternatingly in time using the first and second technologies in ping-pong fashion, the outbound tracking messages including the determined real-time tracking data and an identifier of the AAV. The tracking data may include location of the AAV. In an example embodiment, the common tracking system may be ADS-B and the two technologies may be 1090ES and UAT.

A method and apparatus for operating a satellite system including different satellites that may belong to different types of satellite constellations. In some implementations, the satellite system may include a LEO satellite constellation and one or more non-LEO satellite constellations that can be used to increase the forward link capacity of the LEO satellite constellation, for example, by allowing an LEO satellite to offload at least some of its forward link traffic to one of the non-LEO satellites. The user terminals can dynamically switch forward link communications between a LEO satellite and a non-LEO satellite while maintaining a return link connection with the LEO satellite.

A method and apparatus for operating a satellite system including different satellites that may belong to different types of satellite constellations. In some implementations, the satellite system may include a LEO satellite constellation and one or more non-LEO satellite constellations that can be used to increase the forward link capacity of the LEO satellite constellation, for example, by allowing an LEO satellite to offload at least some of its forward link traffic to one of the non-LEO satellites. The user terminals can dynamically switch forward link communications between a LEO satellite and a non-LEO satellite while maintaining a return link connection with the LEO satellite.

A method for a user equipment (UE) in a wireless communication system, includes receiving channel state information reference signal (CSI-RS) for at one antenna port from a network in a subframe, wherein the CSI-RS is mapped to at least one pair of resource elements (REs) per physical resource block (PRB) pair in consecutive orthogonal frequency division multiplexing (OFDM) symbols in the subframe, and wherein the subframe includes two slots, and each slot includes six OFDM symbols based on an extended cyclic prefix (CP).

A method for a user equipment (UE) in a wireless communication system, includes receiving channel state information reference signal (CSI-RS) for at one antenna port from a network in a subframe, wherein the CSI-RS is mapped to at least one pair of resource elements (REs) per physical resource block (PRB) pair in consecutive orthogonal frequency division multiplexing (OFDM) symbols in the subframe, and wherein the subframe includes two slots, and each slot includes six OFDM symbols based on an extended cyclic prefix (CP).

Apparatuses and methods provide for scheduling downlink control information in a wireless network. The apparatuses and methods may determine at least one control message for a user equipment and a downlink grant to be scheduled, and schedule transmission of one of the at least one control message with the downlink grant to precede transmission of related data on a downlink data channel. The apparatuses and methods may alternatively schedule a control message other than downlink grant for a user equipment, determine a downlink grant to be scheduled, and schedule a control message with the downlink grant to end last among all control messages in a search space. The apparatuses and methods may further alternatively schedule control messages for a user equipment, including one control message with a downlink grant and scheduled to end at the same time as or a later time than other control messages in a search space.

An LPWAN communication system includes server equipment, at least one gateway and at least one relay. Each gateway communicates with terminals using a Class A communication mode, wherein any response intended for a terminal uses a reception window defined with respect to a transmission time of an original message by said terminal. Each relay is seen as a terminal by each gateway, and communicates with terminals in accordance with a Class A communication mode, defined as follows: the relay transmits beacons at regular intervals and listens out to terminals only during timeslots defined with respect to said beacons. In this Class A communication mode, the relay propagates any response toward a terminal using at least one other reception window defined with respect to a transmission time of an original message by said terminal.