41 results about "Multipath TCP" patented technology

The present disclosure relates to a method, performed in a single IP-address source node in a wireless communication network, of establishing a multipath TCP, MPTCP, connection for transfer of TCP data in MPTCP subflows to a destination node. The single IP-address source node receives an MPTCP trigger to activate a multipath TCP connection. One or more source TCP ports are selected, wherein each source TCP port is selected to constitute a starting point of an MPTCP subflow. One or more MPTCP notifications are sent to the destination node. Each MPTCP notification includes information on a selected source TCP port. The single IP-address source node receives an acknowledgment of each MPTCP notification from the destination node.The present disclosure also relates to corresponding method performed in a destination node and a wireless device configured for establishing an MPTCP connection.

It is provided a method, comprising configuring a first internet protocol address and a second internet protocol address different from the first internet protocol address for a connection between an apparatus performing the method and a packet data network; assigning the first internet protocol address to a first data path for the connection and to assign the second internet protocol address to a second data path for the connection, wherein at least a part of the first data path belongs to a radio access technology; at least a part of the second data path belongs to the radio access technology; and the part of the first data path is different from the part of the second data path.

Embodiments of the present invention include systems and methods for identifying a primary flow and its corresponding subflow(s) so that the subflow(s) may be routed to more efficiently use bandwidth between a source host and a destination host. In embodiments, a table correlates flows and their corresponding keys for Multipath TCP flows. When a new subflow is initiated between a source device and a destination device, the new flow can be identified as being a subflow of a primary flow using data in the table. Having identified the subflow and its corresponding primary flow, the new subflow may have an installed route path that differs from its primary flow, thereby improving the bandwidth usage.

The invention relates to a method of a multipath TCP having mobility and combined with a mobile IP (internet protocol), belonging to the field of multipath TCP technology application. The method of the multipath TCP having the mobility and combined with the mobile IP aims at providing a mobility support for a multipath TCP supporting mobile host and can satisfy user requirements of using a plurality of interfaces at the same time and communicating at all times and places. The method of the multipath TCP having the mobility and combined with the mobile IP realizes multiconnection and mobility support by combining a multipath TCP and the mobile IP. A modified mobile IP layer is in charge of supporting the mobility, a multipath TCP layer is in charge of establishing and managing multiple paths, and therefore, the host motion and the multipath transmission data are transparent for an application layer in order to realize the multipath TCP with the mobility.

A method is disclosed for exchanging data over a TCP connection between a client node and a networking node. The TCP connection comprises a primary MPTCP subflow between a customer premises equipment, a HCPE, and a hybrid access gateway, a HAG. The method comprises, by the HCPE, converting first TCP segments to first MPTCP segments of the primary MPTCP subflow and vice versa, and using destination address information of the first TCP segments as destination address information of the first MPTCP segments, and using source address information of the first MPTCP segment as source address information of the first TCP segments. The method further comprises, by the HAG, converting second TCP segments to second MPTCP segments of the primary subflow and vice versa while preserving source and destination address information.

The invention discloses a method for controlling multi-priority connection congestion time windows in a multi-path TCP (transmission control protocol) and belongs to the field of a network communication technology. The method is applied to terminal equipment including a multi-core processor and multiple independent physical network interfaces and the network communication process where multiple TCP paths are established by multiple tasks via MPTCP. When the TCP congestion time windows of high-priority tasks are required to be increased, the congestion time windows are constantly ensured as the maximum value of the TCP congestion time windows of all present tasks by the method; when the TCP passageway generation data packets of the high-priority tasks lose, the TCP congestion time windows of various tasks on the same network interface are reduced by one half via the method. When multiple tasks perform network communication via MPTCP and various tasks can select transmission paths with better performances by the method, the high-priority tasks can acquire more network resources; thus the communication service quality of the high-priority tasks can be ensured even if the reception requests of the present TCP path are overmuch and congested.

Some embodiments relate to a user equipment device (UE), and associated methods for performing ROHC header compression on TCP packets with MPTCP option enabled. In some embodiments, a compressor may determine that a first portion of the stream of data packets is formatted according to the transmission control protocol (TCP) with a multipath TCP (MPTCP) option enabled. The compressor may establish context with a corresponding decompressor and may operate in one of three modes of compression based on the context. In some embodiments, when the context indicates that the corresponding decompressor supports decompression of TCP data packets with MPTCP option enabled, the compressor may operate in a first or second mode of compression. In some embodiments, when the context indicates that the corresponding decompressor does not support decompression of TCP data packets with MPTCP option enabled, the compressor may operation in a third mode of compression.

The invention relates to a method of a multipath TCP having mobility and combined with a mobile IP (internet protocol), belonging to the field of multipath TCP technology application. The method of the multipath TCP having the mobility and combined with the mobile IP aims at providing a mobility support for a multipath TCP supporting mobile host and can satisfy user requirements of using a plurality of interfaces at the same time and communicating at all times and places. The method of the multipath TCP having the mobility and combined with the mobile IP realizes multiconnection and mobility support by combining a multipath TCP and the mobile IP. A modified mobile IP layer is in charge of supporting the mobility, a multipath TCP layer is in charge of establishing and managing multiple paths, and therefore, the host motion and the multipath transmission data are transparent for an application layer in order to realize the multipath TCP with the mobility.

A method of managing a multipath TCP (MPTCP) connection includes establishing the MPTCP connection as a logical connection between end-points that utilizes multiple network paths with one TCP subflow per network path. At least two subflows of the MPTCP connection are terminated at different end-points.

A selection method for selecting network connection concentrators for a given set of M≥1 communication paths usable by a communicating device. Each respective interface of the communicating device is connected to a respective path. The method includes the following acts: a) identifying a set (P1, P2, . . . , PN) of N≥2 concentrators situated in at least one network to which the communicating device is connected, each concentrator making it possible to aggregate connections using a plurality of paths suitable for being used by the communicating device; b) obtaining the value of at least one quality of service parameter QoS(i,j) for at least one path i, where i=1, . . . , M, and for concentrators Pj reachable from the communicating device via the path i; and c) selecting at least one concentrator from the set on the basis of the quality of service values that are obtained. The method is applicable to the multipath TCP (MPTCP) protocol.

The invention provides a link information processing method and device. The method comprises the steps of obtaining a data processing request; querying target information of data requested to be processed by the data processing request; determining a handle number according to the target information; and searching or updating TCP link information in a link information storage module by taking thehandle number as an address. Namely, the link state / link information is managed and updated in real time through the handle number, and the requirement that multiple TCP / IP links work at the same timeis met. Through the above mode, resource utilization is reduced, and a multipath TCP / IP link support function is realized.

It is provided a method, comprising configuring a first internet protocol address and a second internet protocol address different from the first internet protocol address for a connection between an apparatus performing the method and a packet data network; assigning the first internet protocol address to a first data path for the connection and to assign the second internet protocol address to a second data path for the connection, wherein at least a part of the first data path belongs to a radio access technology; at least a part of the second data path belongs to the radio access technology; and the part of the first data path is different from the part of the second data path.

Embodiments of the present invention include systems and methods for identifying a primary flow and its corresponding subflow(s) so that the subflow(s) may be routed to more efficiently use bandwidth between a source host and a destination host. In embodiments, a table correlates flows and their corresponding keys for Multipath TCP flows. When a new subflow is initiated between a source device and a destination device, the new flow can be identified as being a subflow of a primary flow using data in the table. Having identified the subflow and its corresponding primary flow, the new subflow may have an installed route path that differs from its primary flow, thereby improving the bandwidth usage.

A method is disclosed for exchanging data over a TCP connection (234) between a client node (100) and a networking node (103). The TCP connection comprises a primary MPTCP subflow (122) between a customer premises equipment, a HCPE (101), and a hybrid access gateway, a HAG (102). The method comprises, by the HCPE, converting (410, 413) first TCP segments (401, 406) to first MPTCP segments (402, 405) of the primary MPTCP subflow and vice versa, and using destination address information of the first TCP segments as destination address information of the first MPTCP segments, and using source address information of the first MPTCP segment as source address information of the first TCP segments. The method further comprises, by the HAG, converting (411, 412) second TCP segments (403, 404) to second MPTCP segments (402, 405) of the primary subflow and vice versa while preserving source and destination address information.

A method implemented in a network element acting as a Home Agent (HA) of a Mobile Node (MN) for communicating with a Correspondent Node (CN) using Mobile Internet Protocol Version 6 (MIPv6), the method comprising by the HA based on a predefined The policy selects a virtual home agent (VHA) to provide the home agent service of better quality of service than the HA to the MN, and sends a flow switching request (FSR) message to the selected VHA, and the FSR message includes a transmission control protocol (TCP) parameter and The FSR message includes the care-of address for the MN and the address of the CN. The FSR message initiates flow redirection at the VHA using a multipath TCP exchange and receives a Flow Switching Acknowledgment (FSA) message from the VHA indicating that the VHA is receiving data from the CN. packet, and tunnel the data packet to the MN at the care-of address.

The invention discloses a novel virtual multi-path TCP terminal content scheduling method, which includes: obtaining a file download request from any node in a wireless local area network, the file download request includes a file download request and a download request; The candidate node set of the file, select the optimal download node according to the download situation; if the optimal download node alone downloads the request to download the file and does not meet the download requirements, select the suboptimal download node from the candidate node set until all selected download nodes transmit together Meet the download requirements; start all selected download nodes, and use the virtual multi-path TCP protocol to transfer files to the node that sent the download request; after the file transfer is completed, update the stored file information of all nodes in the wireless LAN. The invention has the following advantages: the file downloading time of the terminal in the local area network is greatly shortened.