70 results about "Multipath transmission" patented technology

A wireless communication method and system enabling dynamic multi-path data transmission and reception across heterogeneous radio access networks. The method includes selecting between sequential, concurrent, or redundant multipath transmission strategies based on real-time measurements of link quality parameters, including signal-to-interference-plus-noise ratio (SINR), reference signal received power (RSRP), delay, and spectrum availability. The system further enables adaptive transmission power control, modulation scheme selection, and carrier configuration based on physical layer feedback, minimizing interference and optimizing spectral efficiency. Peer-to-peer communication between terminals is supported without base station mediation, reducing RAN load. Multi-base station connectivity is enabled, allowing terminals to simultaneously transmit through multiple nodes and aggregate at the core network. The architecture supports real-time topology control, dynamic link adaptation, and transmission parameter adjustment based on physical-layer constraints.

The invention discloses an RIS-assisted indoor fingerprint positioning method based on a residual neural network, which is suitable for an RIS-assisted downlink multipath transmission SISO millimeter wave positioning system, and the system comprises a base station, an RIS and a user. The method is realized through the following steps: defining a received signal matrix of a user, including three-dimensional positions of a base station, an RIS, the user and a scatterer; normalizing the received signal matrix of the user to obtain a real value matrix as a sample; adjusting a three-dimensional position of a user in an indoor environment, recording a real three-dimensional position as a label, constructing a data set, and dividing the data set into a training set and a verification set; performing off-line training on the residual neural network by using the training set, optimizing network parameters and storing an optimal weight; in an actual positioning scene, processing a real-time received signal matrix, inputting the processed real-time received signal matrix into the trained model, and outputting a predicted three-dimensional position of a user; according to the invention, the RIS and the residual neural network are combined, the precision and robustness of indoor positioning are improved, and rapid positioning is realized.

The invention relates to an eVTOL (electric vertical take-off and landing aircraft)-oriented multipath transmission optimization and dynamic path selection method, and aims to solve the problems of bandwidth, delay and packet loss of an eVTOL aircraft in high-throughput video data transmission. According to the method, key performance indexes such as bandwidth, delay and packet loss rate of a path are monitored in real time, and path selection is optimized in combination with flight state data, so that low-delay and high-bandwidth transmission of a panoramic video stream is ensured. An improved multi-path load balancing strategy is adopted, the flow is distributed according to the path score and the bandwidth margin, network congestion is avoided, and the data transmission stability is improved. By enhancing an MPQUIC protocol and optimizing multi-path cooperative transmission, a low-delay path is preferentially selected to transmit high-priority data. A redundant transmission mechanism ensures that data can still be reliably transmitted through other paths even if a part of paths lose packets. The method provides technical support for the construction of an immersive eVTOL driving experience platform, meets the requirements of low time delay, high bandwidth and high sense of reality, and has a wide application prospect.

The invention relates to the technical field of network communication, and discloses a weak network adaptive multipath transmission method and system, and a storage medium. The method comprises the following steps: performing multi-path connectivity and quality detection on a target server, constructing a candidate set comprising a first path of a native UDP bearing QUIC, a second path of a TCP tunnel packaging QUIC and a third path of a TCP combined TLS, and performing initial selection of a main path according to the priority from high to low; periodically collecting and smoothly processing network quality indexes such as round-trip delay and packet loss rate during the connection duration; and when the monitoring data meets a preset degradation condition, reordering and switching the candidate paths in combination with a lag mechanism and a comprehensive quality scoring model. Through multi-dimensional perception and a dynamic strategy, the problem of QUIC failure caused by UDP blocking in a firewall interference or weak network environment is solved, the advantages of a QUIC protocol can be reserved to the greatest extent on the premise of not interrupting services, and the reliability and fluency of data transmission are remarkably improved.

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 invention discloses a self-adaptive multi-path scheduling method based on deep reinforcement learning in a heterogeneous network, which comprises the following steps: in a link management module, introducing a multi-path transmission gain model for quantifying a trade-off relationship between aggregation bandwidth improvement and end-to-end delay increase of a plurality of links, by screening the link sets with better performance and smaller difference, the negative influence of low-performance links on the transmission performance of the system is effectively reduced; in the deep reinforcement learning module, the adaptability, learning efficiency and decision accuracy of the model to an unstable environment are improved by combining priority experience playback and an asynchronous learning mechanism, and optimal balance between network throughput and reordering delay is realized by dynamically adjusting a data packet distribution strategy and a transmission sequence. According to the method, the asynchronous priority replay double-depth Q learning algorithm is adopted, real-time perception of the link state and decision scheduling of the data packet can be realized in a dynamic network environment, the aggregation throughput of the network is remarkably improved, and the transmission delay is effectively reduced.

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 present invention discloses a RIS-assisted indoor fingerprint positioning method based on a residual neural network, which is applicable to a RIS-assisted downlink multipath transmission SISO millimeter-wave positioning system. The system includes a base station, a RIS, and a user. The method is implemented through the following steps: defining a received signal matrix of the user, including the three-dimensional positions of the base station, the RIS, the user, and the scatterers; normalizing the received signal matrix of the user to obtain a real-value matrix as a sample; adjusting the three-dimensional position of the user in the indoor environment, recording the real three-dimensional position as a label, constructing a data set and dividing it into a training set and a validation set; using the training set to perform offline training on the residual neural network, optimizing the network parameters and saving the optimal weights; in the actual positioning scenario, processing the real-time received signal matrix and inputting it into the trained model to output the predicted three-dimensional position of the user. The present invention combines the RIS and the residual neural network, improves the accuracy and robustness of indoor positioning, and realizes fast positioning.

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.

The present disclosure relates to a 5G communication system or a 6G communication system for supporting higher data rates beyond a 4G communication system such as long term evolution (LTE). A method of a first SMF may include receiving a first message including a multi-generation aggregation (MGA) capability from a first access and mobility management function (AMF) included in the first communication system, discovering a second SMF included in a second communication system in cast that determining that a user equipment (UE) supports MGA, based on the MGA capability, transmitting a second message including the MGA capability and subscription information about the second SMF to the second SMF, receiving, from the second SMF, a third message including information about a packet data unit (PDU) session transmitted from a second user plane function (UPF) included in the second communication system to the second SMF, and generating a PDU session between the UE and the second communication system, based on the third message.

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.

The invention discloses a data multipath transmission camouflage method based on a protocol and a sending rate, and the method comprises the following steps: 1, carrying out the fragmentation of original data through an entrance node according to a predefined protocol rule based on the obtained original data, and obtaining a plurality of data segments; step 2, disguising the encrypted data segment by using a protocol disguising module to obtain a disguising message; step 3, forwarding the rate camouflage message to a multipath communication network in parallel on each path through a plurality of communication paths by adopting an entrance node; step 4, the exit node decapsulates and verifies the rate camouflage message to obtain a plurality of data segments; step 5, the exit node sends the plurality of data segments to a receiver server according to the serial numbers of the exit node; and step 6, the exit node and the entrance node are mutually exchanged, and then the step 1 is returned to continue. And the anti-analysis capability and the concealment of the communication system are enhanced while the transmission reliability is improved.

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.

The invention relates to a multipath transmission scheduling method, system, device, equipment, medium and product, and specifically relates to the technical field of data transmission. The method comprises the following steps: acquiring network state parameters of substreams corresponding to different paths and performance indexes related to substream network transmission, accurately calculating expected arrival duration of a data packet on the substreams according to the network state parameters, and correcting the expected arrival duration by using the performance indexes. According to the method provided by the invention, the sub-streams with shorter time length are selected from the corrected time length to transmit the data after the influence factors related to network transmission are fully considered, so that the sub-streams can be more accurately scheduled based on the transmission time length under the condition of considering the influence of the network environment on the transmission performance, the network resources are utilized to the maximum extent, and the transmission efficiency is improved.

The application relates to a multi-path transmission method and device, computer equipment, a storage medium and a computer program product. The method comprises the following steps: obtaining a data transmission request, the data transmission request comprising to-be-transmitted data and the identity of a receiving end; searching for a path mapping table according to the identity of the receiving end, the path mapping table comprising a plurality of forward independent paths obtained by detection; sequentially binding a sending path corresponding to the data transmission request to each forward independent path; polling a congestion control module of the sending path to send the to-be-transmitted data to the receiving end based on the available bandwidth corresponding to the sending path. In the scheme, the sending path is bound according to the forward independent paths obtained by detection when data is sent, so that the data is sent to the receiving end through different forward independent paths in a polling mode, and the data is sent according to the available bandwidth through the congestion control module in combination with the load condition of the forward independent paths, thereby effectively improving transmission reliability.

The invention belongs to the technical field of data processing, and discloses an XR space calculation multipath transmission method and system, and the method comprises the steps: selecting an optimal transmission path through an improved multi-arm bandit algorithm, and transmitting a data package to a corresponding edge server through the optimal transmission path; the edge server receives and recombines the data packet into a video frame image, extracts feature points and descriptors of the video frame image by using a scale invariant feature transformation algorithm, and transmits the feature points and the descriptors to a cloud server; matching is carried out in combination with a pre-constructed three-dimensional point cloud map, pose information of the user is estimated, and the pose information is transmitted to a mobile device through a wide area network; and superposing the virtual information to a video frame by using a rendering engine, and displaying the video frame to a user for interaction. According to the invention, the collected video frames are unloaded to a plurality of edge server nodes, and only the feature extraction task is executed on the nodes, so that the network bandwidth consumption and the transmission delay are obviously reduced.

This invention discloses an adaptive multipath real-time streaming media transmission method based on LinUCB, comprising: constructing a real-time streaming media multipath transmission system; establishing a two-layer session message handshake and establishing multipaths; loading and initializing a model; transmitting streaming media data; adaptive transmission adjustment; calculating rewards and updating the model; and completing real-time streaming media transmission. The online learning method based on LinUCB in this invention can switch real-time video stream transmission strategies in a lightweight adaptive manner according to the dynamic network environment; the adaptive real-time streaming media transmission platform based on MPQUIC aggregates the bandwidth of multiple transmission paths, which can effectively improve transmission throughput and reduce the initial latency and rebuffering time of real-time streaming media transmission.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may detect whether a traffic flow comprises multipath transmission control protocol (MPTCP) traffic or multipath quick user datagram protocol Internet connection (MPQUIC) traffic. The UE may modify one or more packets of the traffic flow based at least in part on a result of detecting whether the traffic flow comprises MPTCP traffic or MPQUIC traffic or based at least in part on an access traffic steering, switching, and splitting (ATSSS) policy configured on a modem processor of the UE. The UE may provide the traffic flow for transmission by the UE in accordance with the ATSSS policy configured on the modem processor of the UE. Numerous other aspects are described.

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.

Provided in the embodiments of the present application is a relay transmission method. The method includes: establishing a first protocol data unit session connection between a relay and a network; establishing a second protocol data unit session connection between a first relay and a user equipment; and according to a multi-path transmission control protocol connection between the user equipment and a non-third generation partnership project interworking function entity, making the user equipment connect to the network via both the first relay and a second relay when performing signal transmission with the network.

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 application provides a communication method and device, which can be applied to a communication system of UWB or 802.15 protocol. The method comprises the following steps: determining a first bit sequence and outputting the first bit sequence. The first bit sequence comprises a second bit sequence and N preset elements, the second bit sequence is determined according to a first key and an initial value, N is an integer greater than 0, and the values of the N preset elements are preset values. In the embodiment of the application, the ratio of the amplitude of the main lobe to the amplitude of the maximum side lobe of the autocorrelation function of the random sequence (i.e. the second bit sequence) can be increased by inserting the preset values (i.e. the N preset elements) into the random sequence, so that the influence of noise or multipath transmission on signal estimation can be reduced, and then the problem of low accuracy in estimating the time of arrival of the signal can be solved.

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.

The present application relates to the non-coherent distributed source DOA estimation method based on generalized array flow pattern under color noise, and the method is: the array signal receiving model based on generalized array flow pattern under the uniform linear array is established; the sample covariance matrix of array receiving signal is calculated, and the covariance difference matrix is further obtained by using difference operation; the eigenvalue decomposition and subarray division are carried out on the covariance difference matrix, and the signal subspace corresponding to two subarrays is obtained; the non-coherent distributed source DOA estimation is obtained based on matrix reduction criterion by using the phase relationship corresponding to two signal subspaces; the present application method has very good applicability to the multipath transmission under Toeplitz structure color noise and fast fading channel, can provide higher resolution and DOA estimation accuracy, and only needs one-dimensional spectrum peak search, and the calculation efficiency is high.

The embodiment of the invention discloses a multi-path transmission method and a related device, which can be applied to various scenes such as cloud technology, artificial intelligence, intelligent transportation and the like. A first device and a second device which belong to the same rack no longer adopt a consistent logic path determination strategy, but the first device serves as a client, the second device serves as a server, and after the client and the server perform handshake, a client path connection set suitable for the first device is determined. And a server path connection set suitable for the second device. The client side path connection set and the server side path connection set are used for indicating that all logic paths are not all connected with the first switch and are not all connected with the second switch, so that whether the first switch fails or the second switch fails, the logic paths are not all connected with the first switch and the second switch; according to the invention, at least one logic path can realize data transmission, so that the nodes located on the same rack are prevented from interrupting all related logic paths, and the availability of network transmission is improved.

In one embodiment, a method comprises determining, by a first networking device, that a first subflow of a multipath transmission control protocol (MPTCP) connection has been established between a first internet protocol (IP) address of a first computing device and an IP address of a second computing device, wherein the first computing device is multihomed to the first networking device and a second networking device. The method also includes determining, by the first or second networking device, a request to establish a second subflow of the MPTCP connection between a second IP address of the first computing and the IP address of the second computing device. In addition, the method includes advertising, by the first networking device, a primary IP address (PIP) of the first networking device for the first subflow and advertising, by the second networking device, a PIP of the second networking device for the second subflow.