723results about "Active radio relay systems" patented technology

Systems and methods for the use of measurement object having multiple synchronization signal block (SSB)-based measurement timing configurations (SMTCs) indicating a same periodicity and different offsets are disclosed herein. In some of these cases, a wireless communications network can provide a user equipment (UE) with a measurement object (MO) having up to a total number of total SMTCs. or having SMTC sets each of up to a predetermined number of SMTCs. UE determinations regarding a number of the SMTCs to use to perform one or more corresponding SSB measurements during a period of a periodicity indicated by one or more SMTCs of an MO are also discussed. The use of scheduling restrictions by the UE based on non-terrestrial network (NTN) characteristics of one or more of a serving cell and a neighbor cell to be measured are also discussed.

According to some embodiments, a method is performed by a source network node for performing a sidelink path switch. The method comprises determining to switch a remote wireless device to sidelink communication with a target relay wireless device. The target relay wireless device is in an idle or inactive state and the target relay wireless device is served by a target network node different from the source network node. The method further comprises transmitting an indication to the target network node of the path switch involving the target relay wireless device.

A communication method includes determining, by a policy control function network element, that a category of a backhaul network of a terminal device is a satellite backhaul category. The communication method also includes determining, by the policy control function network element, policy information of the terminal device based on the satellite backhaul category and service deployment information. The service deployment information includes information about a service deployed on a satellite, the policy information includes a correspondence between the service deployed on the satellite and a first-type routing policy, and the first-type routing policy is used for determining a user plane function network element on the satellite as a session anchor of the terminal device. The communication method further includes sending, by the policy control function network element, the policy information to the terminal device.

A repeater device for New Radio (NR) communication, includes a baseband processor that establishes a communication link with a base station and decodes control information that is received from the base station through a control channel. The baseband processor further aligns a timing reference of the repeater device with that of an NR cell frame for an uplink or a downlink time division duplex (TDD) switching, based on the decoded control information. The baseband processor further selects and forms one or more donor beams of RF signals at a donor side of the repeater device and one or more service beams of RF signals at a service side of the repeater device, based on the decoded control information and the aligned timing reference with that of the NR cell frame for the uplink or the downlink TDD switching for communication in an NR frequency band.

A method includes sending, by a master beacon device and one or more beacon repeater devices, ultra-wideband (UWB) beacon frames. The UWB beacon frames are transmitted as interleaved pairs of UWB beacon frames. Each interleaved pair includes a first UWB beacon frame and a second UWB beacon frame. For each interleaved pair, the first UWB beacon frame and the second UWB beacon frame are transmitted with a master time delay. The method further includes receiving, by one or more tag devices, at least one of the interleaved pairs of UWB beacon frames.

A wireless relay device includes: a communication unit configured to relay a downlink wireless signal and an uplink wireless signal: a reception unit configured to receive a signal including control information and identification information for identifying a transmission destination of a signal including the control information in downlink; and a control unit configured to decode the signal including the control information, based on the identification information and perform a control based on the control information.

The invention relates to the technical field of wireless communication, in particular to a multi-orbit elastic communication method and system, and the method comprises the steps: monitoring the performance parameters of a multi-orbit satellite link in real time, and calculating the comprehensive score of each satellite link of the multi-orbit satellite link based on a preset scoring function; dynamically adjusting a configuration strategy of the main backhaul link according to the comprehensive score and a reinforcement learning model; when a network fault or congestion is detected, activating an alternative backhaul path to complete flow redirection and breakpoint resume, and executing a corresponding disaster recovery strategy according to a fault level; and dynamically adjusting bandwidth allocation according to the authorization level of the user equipment. According to the invention, the elastic communication service with wide-area coverage, low time delay and high reliability can be realized through multi-orbit satellite cooperation, efficient disaster recovery switching and priority resource guarantee in a complex scene.

The following processing is performed in the learning phase. The base station device transmits a control signal toward the relay device. The relay device dynamically selects a phase weight that determines the beam direction of the reflected wave according to the set value. A channel state of the CH2 is estimated from a low-frequency CH2 reference signal that has arrived at the base station device from the terminal device. The communication quality of the CH1 is measured from the high-frequency CH1 reference signal that has arrived at the base station device from the terminal device. A learning model is generated by learning the set value, the channel state, and the communication quality. In the estimation phase, the latest channel state acquired by the CH2 is applied to the learning model, and an optimum set value predicted to maximize the communication quality under the latest state is estimated.

A wireless relay device includes: a communication unit configured to relay a downlink wireless signal or an uplink wireless signal; a transmission unit configured to transmit information indicating a capability related to a relay of the downlink wireless signal or the uplink wireless signal; a reception unit configured to receive information indicating an amplification value or transmission power after the relay in accordance with the capability related to the relay; and a control unit configured to perform a control of amplifying the downlink wireless signal or the uplink wireless signal to be relayed, based on the information indicating the amplification value or the transmission power after the relay.

A wireless communication network is described, which includes one or more relay devices and one or more user devices, UEs. A relay devices provides a first bidirectional link having first relay resources, and a second bidirectional link having second relay resources, the first and second bidirectional links using a first interface for a communication with a radio access network, RAN, of the wireless communication network, e.g., the Uu interface. A UE is to perform a direct communication with a network entity of the wireless communication network via the relay device on one or more the first relay resources or on one more of the first and second relay resources using a second interface for a device-to-device, D2D, or sidelink, SL, communication in the wireless communication network, e.g., the PC5 interface.

To provide a wireless repeater that enables flexible route changes as a node within a mesh network.SOLUTION: The wireless repeater comprises multiple antennas arranged in respective different directions, and is controlled such that one or more first antennas of the multiple antennas are used as donor antennas to receive signals from a base station device or other wireless repeaters, and such that one or more second antennas, which are at least some of the other multiple antennas than the first antennas, are used as service antennas to output amplified signals, so that the signals received via the first antennas are amplified and output to the second antennas.SELECTED DRAWING: Figure 2

The invention provides a verification test method and device for a satellite laser link and computer equipment. The method comprises the following steps: determining a zero point coordinate of a turntable according to a preset calibration rule; establishing a turntable reference coordinate system, a turntable zero point coordinate system and a laser terminal coordinate system; when the rotary table is in a zero-point coordinate state, the coordinate systems are jointly used, an angle deviation correction matrix of the laser terminal coordinate system and the rotary table zero-point coordinate system is determined, and space unified operation is achieved; the method comprises the following steps: after acquiring orbit and attitude data about a target satellite for a simulation test, generating a corresponding target control quantity according to the orbit and attitude data and an angle deviation correction matrix; and controlling the operation of a laser terminal and a rotary table in the satellite laser link test system by using the control quantity so as to simulate laser link capturing, tracking and establishing of the target satellite. Therefore, laser link capturing, tracking and establishing of the target satellite can be accurately simulated by establishing a unified space reference.

Disclosed is a method of providing DOP forecasts for LEO navigation for routing of vehicles, aircraft, alerting humans in vehicles, or wireless devices, and bandwidth forecasts for LEO communications. The method includes accessing a 3D map of an area including structure solids and generating cuboids in spaces not contained in the structure solids; and iteratively over time increments, calculating LEO satellites visible from the cuboids using the map and, using at least the calculated visibility, determining forecasts for the cuboids at the time increments. Also included is compressing the determined forecast spatially and temporally; and distributing the compressed DOP forecast via a CDN, responsive to queries from requestors. Systems of the requestors can take into account the forecast for routing vehicles or alerting humans in vehicles to a predicted navigation impairment. Risk analysis is applied to improving computation and distribution of forecasts. Forecasts are applied to satellite deployment.

A wireless device selects, based on an access network type of the wireless device, a nonaccess stratum (NAS) period value from between: a first NAS period value associated with a terrestrial access network type, and a second NAS period value associated with a geostationary earth orbit (GEO) access network type. The wireless device sends, to an access and mobility management function (AMF), a first NAS request message, and starts a NAS period using the NAS period value.

A geosynchronous equatorial orbit (GEO) ground station may concurrently receive at a tracking receiver both a first signal (downlink data) at a first frequency from a GEO satellite and an internally-generated calibration signal at a second frequency.. Based on the calibration signal, the tracking receiver may determine a first phase value for the second frequency, then, from the first phase value, determine a second phase value associated with the first frequency based on a first phase offset between the first frequency and the second frequency according to a set of receiver calibration factors, then generate a phase correction value for signals received at the first frequency without interrupting the downlink data coming from the GEO satellite. Having accurate phasing allows the tracking receiver to report tracking errors correctly to the antenna controller and therefore allow for improved tracking performance.

The invention relates to an antenna repeater device and a method for transmitting and amplifying a radio signal (22) between the vehicle environment of a motor vehicle (30) as a first spatial area (17) and the vehicle interior of the motor vehicle (30) as a second spatial area (18), wherein the vehicle interior is separated from the vehicle environment by a plate-shaped component (11) of a repeater device (10) and a radio signal (22) is received from this spatial area by means of a flat antenna (13, 14) of the plate-shaped component (11) arranged closer to one of the spatial areas by means of a repeater circuit (21) of the repeater device (10) and is radiated into the other spatial area by means of the other flat antenna (13, 14) of the plate-shaped component (11) arranged closer to the other of the spatial areas.

A precoding method, performed by a reconfigurable intelligent surface (RIS) array, includes determining a phase shift list corresponding to the RIS array, in which the phase shift list includes at least one row of phase shift sequence, the phase shift sequence includes a phase shift of each RIS array element in the RIS array, each row of phase shift sequence is configured to cause the RIS array to reflect an incident signal along a pair of reflection angles, and each row of phase shift sequence corresponds to one index value; acquiring a first index value from a user equipment (UE); determining a first phase shift sequence corresponding to the first index value from the phase shift list; and precoding the RIS array by configuring the phase shift of each RIS array element in the RIS array according to the first phase shift sequence.

The focus of the present disclosure relates to a secure global satellite network that securely transmits data from a ground station to one or more geosynchronous orbit satellites within a communicatively linked constellation of geosynchronous satellites. The communicatively linked constellation of geosynchronous satellites covers the entire planet, allowing access to users anywhere on the planet. The communicatively linked constellation of geosynchronous satellites also covers satellites in orbit above the planet, enabling any satellite to send or receive data through the communicatively linked constellation of geosynchronous satellites at any point in the satellite's orbit. The communicatively linked constellation of geosynchronous satellites functions as a communications backbone, enabling global communications coverage between any points on the earth, between any point on the earth and a satellite anywhere in its orbit, or between two satellites anywhere in their orbit.

The present invention relates to the technical field of communications, and particularly provides a relay communication method and apparatus, a device, and a storage medium, The method comprises: a relay device receives first indication information from a network device, the first indication information being used for indicating a beam state of a first beam of the relay device (S201); the relay device determines the beam state of the first beam according to the first indication information (S202). According to the technical solution of the present invention, beam-based interference management of an NCR can be achieved, and energy efficiency can be improved.

Various solutions for uplink synchronization in non-terrestrial network (NTN) communications are proposed. An apparatus implemented in a user equipment (UE) receives a system information block (SIB) of a target cell via a non-terrestrial (NT) network node of the NTN. The apparatus obtains an explicit epoch time from the SIB of the target cell. Then, the apparatus performs an uplink (UL) synchronization with the target cell through adjusting an uplink transmit time according to the explicit epoch time.

To provide a relay station, a transmitting method for the relay station, and a communication system that improve the diversity effect at a receiving station.SOLUTION: In a communication system, a first relay station 3-1 capable of performing non-reproduction relaying together with a second relay station 3-2 for a first radio signal transmitted from a base station to a terminal station having one antenna #0 includes an antenna #0, a radio, and a control circuit 32. The radio includes a receiver that converts a first radio signal into a baseband signal, an FIR filter 315 that imparts a delay to the baseband signal, and a transmitter that converts a signal output by the FIR filter into a second radio signal to be transmitted from the antenna to the terminal station. The control circuit 32 sets the FIR filter to an amount of delay so that the second radio signals transmitted from the antennas of the first and second relay stations have different delays.SELECTED DRAWING: Figure 6

A precoding method, performed by a reconfigurable intelligent surface (RIS) array, includes determining a phase shift list corresponding to the RIS array, in which the phase shift list includes at least one row of phase shift sequence, the phase shift sequence includes a phase shift of each RIS array element in the RIS array, each row of phase shift sequence is configured to cause the RIS array to reflect an incident signal along a pair of reflection angles, and each row of phase shift sequence corresponds to one index value; acquiring a first index value from a user equipment (UE); determining a first phase shift sequence corresponding to the first index value from the phase shift list; and precoding the RIS array by configuring the phase shift of each RIS array element in the RIS array according to the first phase shift sequence.

To provide a communication system capable of maintaining a FDD system communication between a base station apparatus and a terminal apparatus and reducing the weight and power consumption of a radio relay apparatus.SOLUTION: A service link and a feeder link use the same frequency band (shared frequency band) in which an FDD uplink band in which a plurality of frequency channels are adjacently arranged and an FDD downlink band in which a plurality of frequency channels are adjacently arranged are spaced apart from each other via a predetermined guard band. A radio relay apparatus includes a shared antenna, a frequency conversion unit that converts a frequency of an REV (reverse) link signal in a first frequency channel of an FDD uplink band into a frequency of a second frequency channel of an FDD downlink band, and converts a frequency of an FWD (foward) link signal in the second frequency channel of the FDD uplink band into a frequency of a first frequency channel of the FDD downlink band, and a single power amplifier that amplifies the REV link signal and the FWD link signal.SELECTED DRAWING: Figure 12

In some embodiments, a communications system can include a plurality of low earth orbit (LEO) satellites deployed at different altitudes and configured to communicate with one or more terrestrial devices and with one another. The communications system may further include a plurality of geosynchronous (GEO) satellites deployed above the plurality of LEO satellites. The plurality of LEO satellites may cooperate with one another and with the plurality of GEO satellites to provide a global communication network having redundant point-to-point communication.

The invention discloses a different-orbit inter-satellite communication link beam pointing error calculation method, which relates to the technical field of communication, introduces high-order perturbation modeling, solar radiation pressure, earth tidal effect and moon gravitational perturbation items, effectively simulates orbit change of a satellite disturbed by external gravitational force for a long time, reduces the accumulation effect of errors, and improves the accuracy of beam pointing error calculation. In long-time or high-orbit satellite communication, pointing errors caused by simplified perturbation can be effectively reduced, relative motion models of two different-orbit satellites are combined, orbit change of a single satellite is integrated, change of relative speed is taken into calculation, wave beam pointing can be dynamically adjusted when the relative position and the speed of the satellites change, and the method is suitable for large-scale popularization and application. Errors caused by relative movement are reduced, meanwhile, a coupling model of frequency deviation and beam pointing angle deviation is constructed, the influence of the Doppler effect on beam pointing is predicted and corrected in real time, the beam pointing is dynamically adjusted through coupling correction, communication signals are kept on the optimal transmission path, and frequency deviation is avoided.

Various arrangements of transmit and receive shared-aperture array antenna systems are presented herein. The arrangements can include an antenna that includes: a planar substrate; a first row of a first plurality of transmit patches arranged on the planar substrate; a second row of a plurality of receive patches arranged on the planar substrate; and a third row of a second plurality of transmit patches arranged on the planar substrate. The first row, second row, and third row can be parallel and the second row can be between the first row and the third row.

Methods and apparatuses that facilitate relaying information between source and destination devices in a wireless local area network (WLAN). A wireless communication relay device comprises a transceiver and a processor operably connected to the transceiver. The transceiver is configured to receive, from a first wireless communication device, a first frame. The processor is configured to determine that the first frame is destined for a second wireless communication device. The transceiver is further configured to transmit, to the second wireless communication device, a second frame based on the first frame. The relay device, the first wireless communication device, and the second wireless communication device are Institute of Electrical and Electronics Engineers (IEEE) 802.11 devices.

A temperature sensing device includes a temperature sensor to measure a temperature of a cooking chamber of a cooking appliance. A housing of the temperature sensing device is configured to be mounted on the cooking appliance. A Printed Circuit Board Assembly (PCBA) inside the housing is coupled to the temperature sensor, and an insulating layer is located outside an interior wall of the housing. In one aspect, an antenna is coupled to the PCBA to wirelessly transmit data from the temperature sensing device indicating the measured temperature. In another aspect, the temperature sensing device includes a temperature gauge with a needle to indicate the measured temperature, and a motor inside the housing to actuate the needle. According to another aspect, the temperature sensing device is a wireless signal repeater including an exterior antenna and an interior antenna to transmit signals through a wall of the cooking appliance.

A satellite system may have a constellation of communications satellites that provides services to users with electronic devices such as portable electronic devices and home and office equipment. A network operations center may use gateways to communicate with the satellite constellation. The satellite constellation may include sets of satellites with different orbits such as circular orbits with different inclinations, sets of satellites with elliptic orbits, sets of satellites with circular orbits of different altitudes including low earth orbits, medium earth orbits, and / or geosynchronous orbits, and / or sets of satellites with other orbits. The satellite orbits of the satellites in the satellite constellation may be selected to provide coverage to desired user population concentrations at different locations on the earth without using an excessive number of satellites.