134 results about "Relay systems" patented technology

Certain aspects of the present disclosure provide techniques for RRC connection reestablishment by a remote UE. In some cases, a remote UE may be configured to detect, on at least one of a first link between a first relay UE and a first network entity or a second link between the remote UE and the first relay UE, a radio link failure (RLF) resulting in a loss of radio resource control (RRC) connection and attempt to reestablish RRC connection by performing at least one of relay selection or cell selection.

The invention discloses an unmanned aerial vehicle cluster relay system optimization method, and aims to significantly reduce the overall outage probability of the system by performing adaptive optimization on cooperative position deployment and flight trajectories of multiple unmanned aerial vehicles under multiple actual constraint conditions of flight speed, safety distance, flight boundary and the like. Therefore, the reliability and the service quality of the multi-unmanned aerial vehicle relay communication network are improved. According to the method, a Markov decision process (MDP) model is constructed, a multi-unmanned aerial vehicle trajectory optimization problem is converted into a multi-agent reinforcement learning problem, and efficient optimization of unmanned aerial vehicle trajectories is realized by using a centralized training-distributed execution framework, so that the outage probability of a communication system is minimized.

Systems, methods, and instrumentalities are described herein for relay selection associated with WTRU-to-WTRU relays. A wireless transmit / receive unit (WTRU) may be configured to perform relay selection associated with WTRU-to-WTRU relays. The WTRU may (e.g., determine to) perform relay (re)selection, for example, based on active traffic and / or performed measurements (e.g., reference signal received power (RSRP) measurements). The WTRU may perform network assisted relay (re)selection. The WTRU (e.g., in coverage WTRU) may initiate a connection (e.g., RRC connection) or trigger a message (e.g., RRC message), for example, based on WTRU-to-WTRU relaying criteria. The WTRU may report measurements to the network, for example, based on multiple hops.

A method for a relaying system. The method for improving an awareness of the relaying system by user equipment includes encoding information about a relaying service in a vehicle-to-everything message and transmitting the vehicle-to-everything message to the user equipment to improve user equipment's awareness of the relaying system's relaying service.

Certain aspects of the present disclosure provide techniques for paging in sidelink L2 relay scenarios. An example method generally includes connecting, via a sidelink, to a relay user equipment (UE) connected to a network entity; receiving, from a network entity via the relay UE, configuration information identifying a paging mode for the remote UE; and monitoring for paging from the network entity, in accordance with the identified paging mode.

The invention discloses a vehicle relay method and system, a vehicle and a medium, the method is applied to the vehicle relay system, the vehicle relay system comprises a first vehicle and a second vehicle, and the method comprises the following steps: when the first vehicle detects that a condition of entering a communication blind area is satisfied, broadcasting a relay request to a surrounding area; when the second vehicle receives the relay request, determining a relay preference index according to the vehicle state and the relay request, forming a relay response message and feeding back the relay response message to the first vehicle; and the first vehicle determines a relay vehicle from the second vehicles according to the relay response messages and establishes a relay communication link for data relay communication. The relay suitability between the second vehicle and the first vehicle is scored from multiple dimensions through the second vehicle, and the selection standard of the relay vehicle is carried out according to the relay optimization index. The relay demand and the vehicle capability are accurately matched, the data transmission reliability in the communication blind area is guaranteed, and the communication continuity is further guaranteed.

The application discloses a kind of SF6 density relay comprehensive calibration instrument and calibration and measurement method, including intermediate pipeline and be located on the air pump of intermediate pipeline, the one end of the intermediate pipeline is respectively communicated with the one end of safety valve pipeline, first pipeline one end, second pipeline one end, the other end of intermediate pipeline is respectively communicated with the one end of micro water measuring pipeline and third pipeline one end, the other end of the micro water measuring pipeline is respectively communicated with the one end of inlet pipeline and purity measuring pipeline, the other end of third pipeline is respectively communicated with the other end of first pipeline and fourth pipeline one end, the other end of the fourth pipeline is respectively communicated with the other end of purity measuring pipeline, the other end of second pipeline and muffler pipeline, intermediate pipeline side is equipped with suction pipeline;The application has adopted new pneumatic circuit design, combines density relay system calibration circuit with moisture measurement circuit and purity measurement circuit together, with the characteristics such as high measurement efficiency, convenient, its loop structure is simplified, and measurement is efficient.

An autofocus system is disclosed. The system includes an illumination source. The system includes an aperture. The system includes a projection mask. The system includes a detector assembly. The system includes a relay system configured to optically couple illumination transmitted through the projection mask to an imaging system. The relay system is also configured to project one or more patterns from the projection mask onto a sample and to transmit an image of the projection mask from the sample to the detector assembly. The system includes a controller including one or more processors configured to execute a set of program instructions. The program instructions are configured to cause the one or more processors to receive one or more images of the projection mask from the detector assembly and determine a quality of the one or more images of the projection mask.

The invention provides a low-altitude unmanned system air node optimal deployment method based on communication-link-energy consumption joint optimization. The method comprises the following steps: initializing an unmanned aerial vehicle group; the system constructs a performance model according to the real-time channel information, constructs a multi-objective collaborative optimization problem, and solves the multi-objective optimization problem by adopting an MOPSO-HGD algorithm to obtain an optimal result; deploying the unmanned aerial vehicle group to the optimal position according to the optimal result to form a virtual distributed MIMO array structure; setting an unmanned aerial vehicle electric quantity threshold value, judging the size of each unmanned aerial vehicle remaining electric quantity and the unmanned aerial vehicle electric quantity threshold value, and if the unmanned aerial vehicle remaining electric quantity is smaller than the unmanned aerial vehicle electric quantity threshold value, recycling the unmanned aerial vehicle; otherwise, re-determining the position of the unmanned aerial vehicle group; through a closed-loop control mechanism of channel perception-multi-target optimization-dynamic adjustment, the unmanned aerial vehicle relay system can still keep a high signal-to-noise ratio and strong robustness in a complex low-altitude environment, is suitable for scenes such as low-altitude broadband communication, emergency rescue and urban information networks, and has a good engineering application prospect.

An electrical relay system with tilted contactor mounting. The system may include a housing including a first circuit and a second circuit; a relay may be disposed within the housing and configured to move the contactor between a closed position and an open position to connect and disconnect the first and second circuits, respectively. The contactor may be tilted relative to the vertical axis or any specified axis such that the contactor moves in a tilted manner relative to the vertical axis or any specified axis.

The application relates to a kind of OFDM-based broadband millimeter wave relay system hybrid beamforming design method, comprising: calculating the receiving signal of target node under the condition that each node is all digital processor;The receiving signal is processed using minimum mean square error criterion in target node, and MMSE matrix is calculated;Using the equivalence between maximizing sum rate and minimum weighted mean square error algorithm, the maximum sum rate problem is converted into minimum weighted mean square error problem according to MMSE matrix;Deep unfolding neural network is used to solve the minimum weighted mean square error problem, and all digital processor of each node is obtained;Each node's all digital processor is decomposed based on least square decomposition algorithm, and hybrid beamforming matrix of each node is calculated, the complexity of the algorithm is greatly reduced, and the running time of the system can be effectively improved.

A communication apparatus in a multi-hop relay system in which a packet is transmitted and received using a flooding method in a first flooding slot and a second flooding slot each including a plurality of sub-slots, the communication apparatus performs: switching a frequency channel to be used to transmit and receive a packet between a first sub-slot and a second sub-slot in the first flooding slot; and not switching the frequency channel to be used to transmit and receive a packet within the second flooding slot, but switching the frequency channel to be used to transmit and receive a packet between a plurality of the second flooding slots.

Systems, methods, and instrumentalities may be configured for QoS partitioning in a relay wireless transmit receive unit (WTRU). A first WTRU (e.g., a relay WTRU) may receive configuration information indicating packet delay budget (PDB) segmentation information. A first WTRU may receive, from a second WTRU (e.g., a source WTRU), a second WTRU channel busy ratio (CBR) and an end-to-end (E2E) PDB associated with a quality of service (QoS) flow. The first WTRU may determine a first WTRU CBR and a first WTRU load. The first WTRU may determine a PDB partition. The PDB partition may be based on the PDB partition information, the second WTRU CBR, the first WTRU CBR, and the first WTRU load. The first WTRU may transmit an indication to the second WTRU. The indication may indicate a PDB for transmission from the second WTRU to the first WTRU.

To provide a liquid feeding system capable of feeding a liquid of a desired pressure and flow passage to a plurality of use points.SOLUTION: And a relay system (60) connected to the liquid supply system (10) and the liquid supply system (20), wherein the relay system (60) supplies the purified water from a supply flow path (62) to the liquid supply system (20) when the liquid supply system (20) requires the supply of the purified water, and does not supply the purified water from the supply flow path (62) to the liquid supply system (20) when the liquid supply system (20) does not require the supply of the purified water. The purified water is circulated in the supply flow passage 62 and the circulation flow passage 63 regardless of the necessity of the purified water.SELECTED DRAWING: Figure 1

The application discloses a high-voltage relay control method, an electronic device and a program product of a vehicle. The method is used for a high-voltage relay system comprising at least a main positive relay, a pre-charging relay and a main negative relay. The method comprises: performing a power-on process according to a power-on instruction, sequentially performing processes of main positive relay melting detection, main negative relay melting detection, a pre-charging process stage and a pre-charging completion stage, and obtaining a melting detection result; judging whether an abnormality detection condition is met; if the abnormality detection condition is not met, performing a first power-off process; and if the abnormality detection condition is met, performing a second power-off process. The application provides a high-voltage relay control process with multi-scenario stage division, dynamic detection mode switching, load discharge and bipolar melting safety protection. The high-voltage relay melting detection is accurate, and part of the relays can be prevented from being excessively worn due to the melting detection.

The invention belongs to the field of polarization measurement, and particularly relates to a space solar spectrum magnetic field telescope based on multi-wave-plate polarization modulation, which comprises a telescope system, a relay system and a spectrum imaging system, the telescopic system comprises a first 1 / 2 wave plate, a 1 / 4 wave plate and a second 1 / 2 wave plate; when neither the first 1 / 2 wave plate nor the second 1 / 2 wave plate fails, the second wave plate is kept static, and the first wave plate and the third wave plate rotate in the same direction according to a preset different-speed asynchronous motion time sequence, so that the full-stokes component of the solar polarization spectrum is measured; when any one of the first 1 / 2 wave plate and the second 1 / 2 wave plate breaks down, the 1 / 4 wave plate is started, and the 1 / 4 wave plate and the other normally working 1 / 2 wave plate rotate in the same direction according to the re-planned different-speed asynchronous motion time sequence, so that the measurement of the full stokes component of the solar polarization spectrum is maintained. According to the invention, full Stokes measurement can be realized, and the blank of space solar vector magnetic field detection capability in China is filled.

The invention relates to a wireless relay system for a closed long and narrow environment, and the system comprises a portal networking device which is disposed at a tunnel portal; each backbone relay device is provided with a double 5.8 GHz transmission link based on an SDIO (Secure Digital Input / Output) interface and a 2.4 GHz access point based on an SPI (Serial Peripheral Interface) interface; the plurality of backbone relay devices are arranged in the tunnel in a chain-like manner in a cascade manner, the backbone relay device closest to the tunnel portal is connected with the portal internet surfing device through a wired network, and every two adjacent backbone relay devices are connected through a 5.8 GHz wireless link. According to the invention, a hardware architecture is matched with linear topology, so that flexible expansion, rapid deployment and intelligent operation and maintenance are realized; the 5.8 GHz frequency band has good directivity and anti-interference performance in a tunnel; the SDIO interface eliminates protocol stack processing overhead; and seamless coverage of 2.4 GHz signals in the tunnel is ensured through cooperation of the backbone relay equipment and the single-module WiFi coverage enhancement equipment.

The invention discloses a non-cellular wireless access network multi-hop relay resource allocation system and method for offshore long-distance coverage. The system comprises a plurality of wireless relays deployed on the sea surface, an edge distributed unit (EDU), an access point (AP) equipped with a root antenna and a central processing unit (CPU), the AP connected with the EDU provides services for each single-antenna user on the opposite bank through a hop network, wherein each hop network comprises a wireless relay; the system comprises node clusters including an AP cluster, a relay cluster and a user cluster. Considering that each wireless relay is equipped with a root transmitting antenna and a single receiving antenna, each transmission is operated in a half-duplex mode. Reasonable deployment of the relay on the sea surface can be realized, and reachability and rate maximization of the system are realized.

The invention relates to a general equipment switch cover control circuit device based on a CPLD (Complex Programmable Logic Device). The general equipment switch cover control circuit device comprises a logic control circuit taking a complex programmable logic device as a core, an input circuit for signal isolation conditioning, an output circuit for power driving isolation, a state indication circuit and a multi-path isolation power supply circuit. According to the invention, the hardware parallel processing capability of the CPLD is utilized to realize nanosecond-level real-time response and strict hardware interlocking of multiple paths of sensor signals; through the design of multi-stage optoelectronic isolation and independent power supply, the anti-interference capability and the system reliability in severe industrial environments such as oil wells and underwater are greatly improved; meanwhile, different devices can be adapted by updating CPLD logic, and high universality and reconfigurability are achieved. The device effectively solves the problems that a traditional PLC is slow in response and a relay system is poor in reliability.

The invention discloses an anti-interference directional antenna tracking method based on an acoustic beacon, and the method comprises the steps: 1, carrying out the multi-mode acoustic sensing, collecting the acoustic signals of a target region through an acoustic sensor array, and enabling the acoustic signals to comprise a coding signal transmitted by an active acoustic beacon and a feature noise signal generated by a target, establishing a sound wave-electromagnetic wave bimodal sensing network, and realizing data fusion by adopting extended Kalman filtering; 2, target identification and positioning: estimating the spatial position of a target object by adopting a corresponding positioning algorithm based on the type of the acoustic signal; step 3, adaptive beamforming is carried out, beamforming is carried out by adopting an improved generalized Snell law, and phase compensation provided by acoustic sensing is introduced; the invention relates to the technical field of sixth-generation mobile communication, and the technical scheme has excellent sensing performance and communication reliability in a complex environment, and is suitable for various 6G application scenes such as smart cities, security and protection monitoring, emergency rescue and the like.

This device provides a relay system that accurately assesses a user's ability to deal with attack emails under desired email reception conditions. [Solution] The relay device 10 includes a relay circuit 13 that relays user terminals 20 connected to it via LAN to the communication network, and a control circuit 15 that monitors and controls data communication between the user terminals 20 and the communication network via the relay circuit 13. The control circuit 15 includes a mail monitoring unit 15A that monitors incoming mail received by the user terminals 20 from a mail server on the communication network and detects malicious attack mail containing malware, and a training control unit 15B that, in response to the detection of attack mail by the mail monitoring unit 15A, acquires the content of the attack mail, selects the recipient user of the attack mail as a training target user, generates training mail content that mimics the attack mail and is addressed to the training target user based on the obtained attack mail content, and instructs a training device on the communication network to send a training mail using the training mail content.

The utility model discloses an FPV unmanned aerial vehicle signal relay system, which comprises a heat dissipation box and is characterized in that the top end of the heat dissipation box is fixedly connected with an upper cover through bolts, one side of the heat dissipation box is fixedly connected with an installation base through bolts, a frequency switching assembly is movably clamped in the installation base, and the frequency switching assembly is fixedly connected with the heat dissipation box through bolts. An image transmission emitting assembly is fixedly connected to the corner position of one side in the heat dissipation box, a receiving assembly is fixedly connected to the corner position of the top of one side of the heat dissipation box, an image transmission receiving assembly is fixedly connected to the middle of one side wall of the heat dissipation box, and a power supply voltage stabilizing assembly is fixedly installed in the middle of the heat dissipation box; the relay system can relay a remote control (2.4 G) signal and an image transmission (5.8 G) signal at the same time, the relay system adopts a modular design scheme, each module can be rapidly replaced, real-time overhaul and fault removal are facilitated, the system maintenance time is shortened, the relay system is low in cost, the actual application value of the relay system is very low, and large-scale popularization and application are facilitated.

The invention discloses an automatic focusing system. The system includes an illumination source. The system includes an aperture. The system includes a projection mask. The system includes a detector assembly. The system includes a relay system configured to optically couple illumination transmitted through the projection mask to an imaging system. The relay system is also configured to project one or more patterns from the projection mask onto a sample and transmit an image of the projection mask from the sample to the detector assembly. The system includes a controller including one or more processors configured to execute a set of program instructions. The program instructions are configured to cause the one or more processors to receive one or more images of the projection mask from the detector assembly and determine a quality of the one or more images of the projection mask.

An auto-focusing system is disclosed. The system includes an illumination source. The system includes an aperture. The system includes a projection mask. The system includes a detector assembly. The system includes a relay system, the relay system being configured to optically couple illumination transmitted through the projection mask to an imaging system. The relay system also being configured to project one or more patterns from the projection mask onto a specimen and transmit an image of the projection mask from the specimen to the detector assembly. The system includes a controller including one or more processors configured to execute a set of program instructions. The program instructions being configured to cause the one or more processors to: receive one or more images of the projection mask from the detector assembly and determine quality of the one or more images of the projection mask.

This disclosure proposes a short packet communication method for UAV relay systems based on NOMA technology. The method includes the following steps: establishing a system model of the UAV relay system, which includes a control terminal, UAVs, and multiple target users; short packet communication transmission between the control terminal, UAVs, and multiple target users based on NOMA technology; and, based on the system model, jointly optimizing the total data packet length, UAV flight position, and UAV power allocation in the short packet communication transmission to obtain the minimum effective packet error rate for the target users. The method proposed in this disclosure can effectively reduce the communication latency of short packet transmission in UAV relay systems and the effective packet error rate at the target users.

Examples relate to an Intelligent Relay System, IRS, node, and a managing apparatus, a computer program and a method thereof. The IRS node (40, 510 to 530, 610 to 630) comprises a management and control module (41, 517 to 537, 617 to 637), a routing module (42, 518 to 538, 618 to 638), one or more interfaces (43) and one or more communication modules (44). The management and control module (41, 517 to 537, 617 to 637) is configured to deploy the IRS node to a position. The routing module (42, 518 to 538, 618 to 638) is configured to obtain a routing table for forwarding packets. The one or more interfaces (43) is configured to communicate with a central IRS management module (80). The one or more communication modules (44) is configured to enable network connectivity of the IRS node in an IRS. As the IRS node may have different communication modules, it may flexibly work in different roles in the IRS, so that making the IRS to be flexible to deploy and modify according to the needs for network access by UEs.

The present application relates to the technical field of optical frequency transfer, and particularly relates to a relay system and method for realizing automatic phase locking of optical fiber optical frequency transfer, which comprises: an optical fiber beam splitter for splitting signal light into two parts; an acousto-optic modulator for frequency shifting; a relay laser for generating regenerative laser; a photodetector for beat frequency between signal light and regenerative laser; a signal processing and discrimination locking unit for processing beat frequency signals and discriminating whether to lock at a target frequency; a control unit for maintaining the locking state of the regenerative laser when it is discriminated that the frequency of the regenerative laser is locked; and outputting the locked regenerative laser to the next optical fiber link after frequency shifting by a third acousto-optic modulator; and the specific method is to realize automatic frequency locking and relocking of the regenerative laser through double beat frequency signal discrimination and feedback control, and to ensure stable relay of optical frequency signals. The present application improves the long-term stability and reliability of the relay system.

Penetration testing is performed on a cellular network environment. An attacker system sends a request packet to a target user equipment that is connected to a base station of a cellular network. A source Internet Protocol (IP) address of the request packet is changed to an IP address that allows a response packet from the target user equipment to be received at a relay system. The request packet is encapsulated in a General Packet Radio Services Tunneling Protocol User (GTP-U) tunnel packet that is sent to a UPF of the cellular network. The response packet, which is responsive to the request packet, is received at the relay system by way of the UPF. A destination IP address of the response packet is changed to an IP address of the attacker system before forwarding the response packet to the attacker system.

This application relates to a relay system and method for air-to-water cross-medium communication, comprising: a transmission module for transmitting target baseband signal light and target beacon light through a target air node to establish an initial communication link between the air node and a surface relay node; a wavelength conversion device for generating frequency-doubled light of the baseband signal light based on the baseband signal light and a frequency-doubled strategy; and an adaptive communication control module for acquiring the location information of the underwater target node to analyze the communication quality of the initial communication link, determine the modulation mode of the target signal light, and adjust the power of the second and third frequency-doubled light according to the target communication node information to optimize the communication performance with the target communication node, and establish a bidirectional communication link between the target air node and the underwater target node to transmit target communication data. This solves the problems of existing blue-green light-based air-to-water cross-medium communication methods, such as easy exposure of target location and inability to simultaneously meet the requirements of high bandwidth and high power transmission.