H04B7/18523

Systems and methods implementing a communication protocol for data communication with a vehicle

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.

Positioning system, pseudo station control device, and method of controlling pseudo satellite station
11262456 · 2022-03-01 · ·

A positioning system including a satellite signal receiver 20 that receives satellite signals from a plurality of positioning satellites; a plurality of indoor pseudo satellite stations that transmit pseudo satellite signals; and a pseudo station control device that selects the positioning satellites to be allocated to the plurality of pseudo satellite stations based on the received satellite signals, allocates a PRN code corresponding to each of the selected positioning satellites to each of the plurality of pseudo satellite stations one by one, determines a delay time of the PRN code allocated to the plurality of pseudo satellite stations, and transmits a plurality of pseudo satellite signals generated using the PRN code corresponding to each of the plurality of pseudo satellite stations and the delay time to each of the plurality of pseudo satellite stations.

METHOD AND DEVICE FOR TRANSMITTING AND RECEIVING SYNCHRONIZATION SIGNAL OF DEVICE-TO-DEVICE COMMUNICATION TERMINAL IN WIRELESS COMMUNICATION SYSTEM
20220353833 · 2022-11-03 ·

One embodiment of the present invention relates to a method for receiving a sidelink synchronization signal (SLSS) by a terminal in a wireless communication system, comprising the steps of: receiving a physical sidelink broadcast channel (PSBCH); determining which of global navigation satellite systems (GNSS) or an eNB is to be a synchronization source according to priority information included in the PSBCH; and receiving an SLSS associated with the determined synchronization source, wherein the terminal determines that the priority information is valid only when a public land mobile network (PLMN) associated with the priority information matches a PLMN to which the terminal belongs.

Combined simulcasting and dedicated services in a wireless communication system

An efficient method for providing both dedicated and simulcast services over a common wireless infrastructure is described. The services can be available to a single terminal as well as to a multiplicity of terminals simultaneously. The method uses time division multiplexing and orthogonal frequency division multiple access for simulcasting information and transmitting dedicated message information from a plurality of base stations forming a cellular pattern over the same wireless frequency channel. The method comprises the steps of constructing frames for transmission by the plurality of base stations comprising control information, simulcast information and dedicated message information within predetermined time slots of the frames and allocating the simulcast information and the dedicated message information to time slots of the same frame predetermined by the control information of the frame. The underlying modulation technology used is OFDM and thereby the channel delay-dispersion is minimized.

METHOD AND DEVICE FOR DETERMINING IF AT LEAST ONE INTERFERER GENERATED BY CROSS POLARIZATION INTERFERENCE IS PRESENT IN RECEIVED FRAME

The present invention concerns a method for determining if at least one interferer generated by cross polarization interference is present in a received frame. The method comprises the steps of: —analysing the received frame using a sliding window which analyses at least a part of a first and second planes of the received frame, —determining a factor of merit for each position of the sliding window, —comparing each factor of merit to a threshold in order to determine if at least one interfered zone is present in the received frame, —analysing the factors of merit in order to determine the number of interferers which are present in each interfered zone, —determining the start/end positions of each interferer in the first and second planes of the received frame.

ANTENNA ARRAY ON MOVING NODES
20170302366 · 2017-10-19 · ·

Techniques related to methods, non-transitory computer readable mediums and computing devices configured to share content received from a satellite in an ad-hoc network are generally described. One example method may include configuring a first moving node in the ad-hoc network to receive a first version of the content from a second moving node in the ad-hoc network and to receive a second version of the content from a third moving node in the ad-hoc network. The example method may further include processing the first version of the content and the second version of the content at the first moving node according to the characteristics of the first version of the content and the second version of the content, respectively. The example method may also include transmitting a processed version of the content based on the processed first version of the content and the processed second version of the content to the second moving node and the third moving node.

SYSTEM AND METHOD OF BI-DIRECTIONAL COMMUNICATION FOR POSITION SENSORS INVOLVING SUPERPOSITION OF DATA OVER LOW VOLTAGE DC POWER USING TWO CONDUCTORS

A communication system that involves superimposing data over DC power. The data takes the form of high bitrate digital signals, where the bitrate is much higher than 0 Hz (DC); this separation allows the AC signal to be easily separated from the DC power. The physical system consists of a two conductor cable, and integration is modular, in that multiple slaves can be connected and disconnected to a master through a routing bus also comprising two conductors. The master can communicate bi-directionally with the slave(s), and the data is encoded using DC-balanced encoding in an FPGA. The data is sent to and from a differential signaling transmitter/receiver pairs at each end of the cable. The system is may be used with position sensors, and provides the benefit of reducing cable costs and sensor size due to the decrease in number of conductors and elimination of power components in the sensor.

SATELLITE SYSTEM WITH DIFFERENT FREQUENCY PLAN AT THE EQUATOR

A non-geostationary satellite is configured to provide a plurality of spot beams that implement a first frequency plan at Earth's Equator and a second frequency plan away from Earth's Equator. The second frequency plan is different than the first frequency plan. In one embodiment, the non-geostationary satellite is part of a constellation of non-geostationary satellites, with each of the satellites providing spot beams that implement a first frequency plan at Earth's Equator and implement a second frequency plan away from Earth's Equator as the satellites travel in orbit around Earth.

System and method for processing signals using feed forward carrier and timing recovery

Systems, methods, and computer-readable media for processing a digital bit stream representative of a communication signal are provided. The method can include dividing, at one or more processors, the digital bit stream into a plurality of data packets, each having an overlap of data from an adjacent packet. The method can include performing a timing recovery operation and a carrier recovery operation on portions of the plurality of data packets in multiple processing blocks in the processor, in parallel. The method can include combining the first plurality and the second plurality based on timing and phase stitching.

METHOD FOR TRANSPARENT ON-BOARD ROUTING OF DATA PACKETS AT VERY HIGH BIT RATE IN A SPACE TELECOMMUNICATION SYSTEM USING A NETWORK OF AT LEAST ONE REGENERATIVE SATELLITE(S)
20170230105 · 2017-08-10 ·

A method for transparent on-board routing of data packets at high bit rate is implemented by a telecommunication system comprising an origin transmitting station, a first destination receiving station, a second destination receiving station, and a plurality of at least two satellites. The origin transmitting station segments high bit rate data streams into coded or uncoded packets each having the structure of a coded or uncoded DVB-S2 baseband frame BBFRAME; and the origin transmitting station inserts, for each segmented BBFRAME packet, coded or uncoded, an on-board routing label of a single piece respectively associated with the coded or uncoded BBFRAME packet. The on-board routing label contains an identifier of the destination receiving station associated with the coded BBFRAME packet, out of the first destination receiving station and the second destination receiving station.