23 results about "Multipath transmission" patented technology

The invention relates to the technical field of satellite-ground laser communication, and discloses a banyan-shaped network communication method and system based on multi-beam multipath transmission and space diversity synthesis aperture reception. The method comprises the following steps: dividing a light beam into a plurality of beams at a satellite-based terminal through beam forming to point to a plurality of ground stations; multiple ground stations receive data in parallel and then gather the data to a data center for time-space synchronization; and the data center adopts a multi-branch neural network to intelligently fuse the synchronized data so as to reconstruct a signal. According to the invention, by constructing the satellite-to-ground collaborative architecture, signal interruption and data loss caused by atmospheric turbulence are effectively suppressed, the limitation of high-error-code communication is broken through, and remote, high-speed and high-reliability satellite-to-ground communication is realized.

The technology described herein is directed towards a transcoder device (node) that leverages multipath routing techniques using both terrestrial and satellite links simultaneously. The transcoder device implements the multipath transmission control protocol (MPTCP) along with metasurfaces, such as to support satellite, ethernet, Wi-Fi, and new radio (e.g., 5G) interfaces. The transcoder can decode and reencode data packets at the packet level to facilitate communication between user equipment (UEs) and existing Satcom satellites. A metasurface redirects signals from the satellite to a satellite radio frequency (RF) interface of the transcoder, with the transcoder also coupled by a UE RF interface to a UE, such as a computing device or cellphone. For direct-to-device communications, transcoder conversion is bypassed. Various additional functions facilitate such satellite service, including via frequency conversion, doppler manipulation, a repeater, and frequency equalization / negative-slope compensation.

The utility model relates to the technical field of antenna discloses a kind of vehicle-mounted stable multipath transmission MIMO antenna, including communication box, the inside fixed connection of communication box has motor, the drive end fixed connection of motor has rotating arm, the one end fixed connection of rotating arm has rotating shaft, the both sides of communication box are fixedly connected with support arm, the one end fixed connection of support arm has rotating column one, the outside fixed connection of multiple rotating column one has same rotating frame, the outside fixed connection of rotating frame has multiple rotating column two, the top fixed connection of rotating shaft has multiple communication lines, the bottom fixed connection of communication box has support plate, the bottom fixed connection of support plate has pasting plate.In the utility model, motor drives rotating arm, rotating shaft, linkage rotating frame adjusts posture, communication line borrows MIMO adaptive signal source.Support arm keeps stable, support plate, pasting plate are used for fixed, and connecting port satisfies multipath transmission.

The application belongs to the technical field of wireless positioning, and particularly relates to a synchronization positioning and mapping method based on millimeter wave communication multipath transmission signals. By establishing a multi-antenna virtual base station model, non-line-of-sight paths are equivalent to virtual line-of-sight paths transmitted by the multi-antenna virtual base station, the state of the virtual base station is described by position and azimuth angle, thereby simplifying the relationship between the geometric parameters of the non-line-of-sight transmission path and the state of the user, and the measurement information of the non-line-of-sight path transmission signals is more effectively utilized; secondly, the multi-antenna virtual base station is regarded as a map feature in a spatial radio frequency environment, a mobile user synchronization positioning and mapping algorithm based on millimeter wave multipath parameter measurement is proposed, the multipath parameter measurement set and the map feature set are modeled as a random finite set, and a probability hypothesis density filter is used to estimate the map, thereby significantly improving the synchronization positioning and mapping performance in the dense clutter and sensor missed detection scenarios.

Disclosed in the present application is a data transmission method. The data transmission method includes: establishing a multipath transmission control protocol (MPTCP) connection with a network access point device, the MPTCP connection including a first TCP connection and a second TCP connection, the first TCP connection being constructed according to a first Wi-Fi connection corresponding to a first Wi-Fi module, and the second TCP connection being constructed according to a second Wi-Fi connection corresponding to a second Wi-Fi module; and transmitting network access data to the network access point device by means of the MPTCP connection.

The invention relates to a method and a system for video transmission based on millimeter wave, 5G and Wi-Fi hybrid networking, a uniform resource pool of millimeter wave, 5G and Wi-Fi is constructed through a network interface abstraction layer, paths are dynamically allocated for transmission units by combining video stream segmentation and utilizing a multipath transmission protocol, and aggregation and parallel transmission of heterogeneous network bandwidth resources are realized. Compared with a single network or a simple main and standby scheme, the method breaks through the physical bandwidth limitation of a single frequency band, effectively solves the problems of spectrum congestion and signal shielding in a large-space multi-user scene, and greatly improves the total throughput and transmission stability of the system, thereby supporting the concurrent transmission of XR video streams with higher resolution.

This invention discloses a miniaturized, highly selective bandpass filter chip for multipath transmission, comprising an input port, an output port, a port matching network, five octagonal inductors (L1~L5), seven MIM capacitors (C1~C7), and one ground inductor Ls1. It includes a conventional filtering path (Path A) and a compact coupling path (Path B) connected in parallel between the input and output ports. The port matching network is composed of capacitors C4 and C7. Path A forms three resonant units by connecting capacitors C1~C3 in parallel with inductors L1~L3, which, together with capacitor C5, inductor L4, and ground inductor Ls1, constitute a basic bandpass structure and generate low-frequency transmission zeros. Path B forms a compact coupling network by connecting symmetrically coupled inductor L5 in parallel with capacitor C6, utilizing mutual inductance coupling to generate additional high-frequency transmission zeros. The filter chip is implemented using GaAs-based IPD technology to achieve fully lumped component integration, possessing advantages such as compact structure, high selectivity, stable performance, and high integration density.

A packet processing method and system, and a network device are disclosed, and belong to the field of network technologies. A first network device sends a first packet to a second network device through a first tunnel, and sends a second packet to a third network device through a second tunnel. The second network device forwards the first packet to the third network device through a third tunnel. The third network device processes the first packet and the second packet. The first network device is located at a first site. The second network device and the third network device are located at a second site. The first site and the second site are connected through a wide area network. Wide area network multipath transmission may be implemented in a multi-gateway scenario.

The application discloses a kind of based on the naming data network hop-by-hop congestion control method of forwarding path number, including router congestion detection and router congestion control;Router calculates the congestion degree of local router by means of active queue management method.Routers determine local congestion state and update the congestion information of data packet.Downstream adjacent router is based on the number of forwarding path and executes multipath forwarding strategy or interest packet sending rate adjustment strategy.When router executes multipath forwarding strategy, the router calculates the shunt proportion of interest packet flow of current interface according to the congestion information of data packet and forwards flow through current or relatively suboptimal interface.When router executes interest packet sending rate adjustment strategy, the router adjusts the interest packet sending rate of same name prefix according to the congestion information of data packet.The application proposes two router control strategies for the characteristics of multiple-source multipath transmission of named data network, to cope with single-path flow and multi-path flow in network.

Disclosed in the present invention are an MPTCP-based multipath transmission method and apparatus for a set-top box, and a storage medium. The method comprises: in response to a multipath transmission connection request from a target set-top box, establishing an MPTCP multipath transmission channel between a video transmitting end and the target set-top box; acquiring target video data by means of the video transmitting end, encoding the target video data to obtain encoded video data, generating a plurality of sub-stream data packets on the basis of the encoded video data, and then transmitting the plurality of sub-stream data packets to the target set-top box by means of the MPTCP multipath transmission channel; and, by means of the target set-top box, merging the plurality of sub-stream data packets to obtain the encoded video data, and decoding the encoded video data to obtain the target video data. The present invention reduces the transmission delay, improves data transmission efficiency and video service usage experience of users, and can be widely applied to the technical field of communications.

A method of a server to establish secure multipath communications between the server and a user device includes establishing a WireGuard connection with the user device, establishing a first sub flow of a multipath transmission control protocol (MPTCP) connection with the user device using a first WireGuard virtual private network (VPN) tunnel, the first sub flow having a first path, sending a message to initiate a second path between the server and the user device, the message including a WireGuard interface address, public key for the server, and WireGuard indicator, receiving a reply message with a public key for the user device, and establishing a second sub flow of the MPTCP connection with the user device using a second WireGuard VPN tunnel, the second sub flow having the second path.

The following disclosure relates to a multipath transmission apparatus, which may include: an interface module that integrates different libraries; an automatic path collection module that automatically detects and collects available data transmission paths within the platform, and selects the optimal data transmission path from the available data transmission paths to generate a path set; a data transmission module that transmits data through the optimal data transmission path; and a dynamic data classification module that dynamically adjusts the optimal data transmission path by real-time monitoring of the data transmission module.

This disclosure provides systems, methods, and devices for wireless communication that support multi-path user equipment (UE) uplink communication techniques with UE cooperation. In a first aspect, a UE configured for wireless communication includes determining activation of a multipath transmission configuration at the UE. The UE identifies one or more uplink communication messages for transmission to the serving network entity and transmits the uplink communication messages according to the multipath transmission configuration. Other aspects and features are also claimed and described with respect to cooperative UEs and network entities.

The invention belongs to the technical field of wireless positioning, and particularly relates to a synchronous positioning and mapping method based on millimeter wave communication multipath transmission signals. By establishing a multi-antenna virtual base station model, a non-line-of-sight path is equivalent to a virtual line-of-sight path transmitted by a multi-antenna virtual base station, and the state of the virtual base station is jointly described by a position and an azimuth angle, so that the relationship between geometric parameters of a non-line-of-sight transmission path and the state of a user is simplified; the measurement information of the non-line-of-sight path transmission signal is effectively utilized; secondly, taking a multi-antenna virtual base station as a map feature in a spatial radio frequency environment, providing a mobile user synchronous positioning and mapping algorithm based on millimeter wave multipath parameter measurement, modeling a multipath parameter measurement set and a map feature set into a random finite set, and estimating a map by adopting a probability hypothesis density filter, and the synchronous positioning and mapping performance in a dense clutter and sensor missing detection scene is remarkably improved.

This application relates to the field of communication technology. It discloses an optimization method, apparatus, aircraft, and storage medium for low-altitude multipath transmission, which enables the MPTCP scheduler to adjust links in a timely manner when the link signal is weak, thereby ensuring the communication effectiveness of the aircraft in low-altitude environments. The optimization method for low-altitude multipath transmission includes real-time acquisition of the link status of the aircraft's WiFi link and cellular network link, where the WiFi link status reflects the signal strength of the WiFi link and the cellular network link status reflects the signal strength of the cellular network link; generating a target link status based on the WiFi link status and the cellular network link status; and transmitting the target link status to the MPTCP scheduler so that the MPTCP scheduler can adjust the aircraft's communication links in real time based on the target link status.

The application relates to a cloud-assisted transparent compression distributed model distribution method and a distribution network system. The method comprises the following steps: preparing an AI model on the cloud side, generating a file of the AI model, and publishing the file of the AI model on the cloud side; the cloud side cooperates to calculate a difference part of the AI model which needs to be updated; the cloud side performs transparent compression on the difference part of the AI model; the cloud side cooperates to transmit the compressed difference part of the AI model to the terminal side through a P2P multi-path transmission mode; and the terminal side decompresses the received compressed difference part of the AI model and then assembles the same part locally to form a complete updated model. The method can realize rapid updating and upgrading of the terminal side model, adapt to the network and energy consumption constraints of the terminal side, and optimize the transmission process through transparent compression and multi-path transmission cooperation of the cloud side.

The invention discloses a multipath transmission scheduling method and device, electronic equipment and a storage medium. The method comprises the following steps: acquiring first transmission state data corresponding to a plurality of target transmission paths; according to the first transmission state data, first traffic scheduling information of multiple target transmission paths is generated through multiple target intelligent agents, the multiple target intelligent agents are multiple intelligent agents which are obtained through reinforcement learning training and are in one-to-one correspondence with the multiple target transmission paths, and the first traffic scheduling information comprises control action types of the multiple target transmission paths; the control action type is used for indicating the bandwidth proportion of the available bandwidth configured for the target transmission path; and scheduling the traffic of the plurality of target transmission paths according to the first traffic scheduling information of the plurality of target transmission paths. According to the technical scheme provided by the invention, the condition of load imbalance in multi-path transmission can be remarkably reduced, the self-adaptive collaborative distribution of the multi-path transmission resources in the flow scheduling is realized, and the multi-path transmission efficiency is improved.

This disclosure provides systems, methods, and devices for wireless communication that support multi-path user equipment (UE) uplink communication techniques with UE cooperation. In a first aspect, a UE configured for wireless communication includes determining activation of a multipath transmission configuration at the UE. The UE identifies one or more uplink communication messages for transmission to the serving network entity and transmits the uplink communication messages according to the multipath transmission configuration. Other aspects and features are also claimed and described with respect to cooperative UEs and network entities.

Communication systems and associated methods are described for transmitting a real-time digital data flow through a network via a plurality of corresponding sub-flows or streams including data from the real-time digital data flow and / or parity information. A source system may receive a real-time digital data flow and generate the plurality of data streams of the real-time digital data flow and at least one parity stream including parity data for the real-time digital data flow. The source system may transmit the plurality of data streams and the at least one parity stream in parallel along different respective paths to a destination device. One or more parameters of the stream generation and / or transmission may be adjusted based on network conditions associated with the different respective paths to the destination device.

The application relates to a double-layer dependent command control network interlayer coupling strategy construction method and system, which comprises the following steps: defining a node walk betweenness, the node walk betweenness being quantified based on the accumulated information amount of network nodes in multiple information walk processes; calculating interlayer node dependence strength based on the node walk betweenness, the interlayer node dependence strength being positively correlated with the product of the walk betweenness of double-layer network nodes; establishing a node combat attribute matching degree model to evaluate the cross-layer node cooperation capability; the node combat attribute matching degree model being calculated based on the node self combat capability and the cooperation factor of the cooperative node; combining the interlayer node dependence strength and the combat attribute matching degree to construct an interlayer coupling probability function containing a hierarchical adjustment factor; and dynamically selecting the coupling nodes by using a roulette algorithm based on the interlayer coupling probability function to generate an interlayer coupling strategy. The application solves the problem that the coupling strategy ignores information multi-path transmission and dynamic combat attribute cooperation, and improves the network damage resistance performance.

Systems, methods, apparatuses, and computer program products for access traffic steering, switching, and splitting (ATSSS) with branching point (BP) or uplink classifier (ULCL) on the path. The method may include, setting up, in response to a request, a first user plane function with multi-access traffic steering functionality. The method may also include requesting a user equipment to establish a new multi-access packet data unit session to a same data network name and slice as an old multi-access packet data unit session, or request the user equipment to release the old multi-access packet data unit session with a second user plane function and to initiate a multi-access packet data unit session re-establishment. The method may further include sending, to the user equipment, multi-access rules for the new multi-access packet data unit session, a new internet protocol address, and new multipath transmission control protocol proxy information.

The invention belongs to the technical field of unmanned aerial vehicle communication, and particularly relates to an unmanned aerial vehicle communication system based on IPv6 multi-homing and multipath transmission. The system configures independent IPv6 addresses for a plurality of heterogeneous links of the unmanned aerial vehicle, establishes a binding relationship between the links and the addresses, and generates a service session identifier; the method comprises the following steps: periodically collecting link state parameters and associating the link state parameters with an IPv6 address to generate an address-level state vector; the available IPv6 addresses are comprehensively scored based on the state vectors, the sending proportion of each address is determined according to the service category, and data fragments are bound to different IPv6 source addresses and sent in parallel; when the link is degraded, on the premise that the session identifier is not changed, address level degradation and flow rapid switching are executed; and the receiving end carries out unified recombination on the fragments from the multiple addresses according to the session identifier and the fragment serial number, and delivers the recombined fragments to an upper-layer application. According to the invention, the communication throughput rate, stability and continuity of the unmanned aerial vehicle in a multi-link environment are improved.

This invention relates to a look-ahead multipath routing method for low-Earth orbit (LEO) satellite networks based on node importance. The method includes: collecting data from several homogeneous satellites in the LEO network to construct an undirected graph; calculating the overall quality score of each node in the undirected graph; using the overall quality score of each node as a basis, employing a look-ahead greedy algorithm for path planning, and selecting multiple non-intersecting paths through virtual pruning and recursive look-ahead mechanisms; and triggering route recalculation or dynamic optimization of traffic allocation based on whether the initial traffic sharing weight of each non-intersecting path triggers route maintenance conditions. This method achieves deep integration and collaborative optimization of long-term link stability and global node importance, effectively overcoming the short-sightedness of traditional routing methods and significantly improving the overall performance, reliability, and adaptability of multipath transmission in dynamic LEO satellite networks.