Mobile communication device for providing network access from a first network to a second network

A computer-implemented method for providing a first networking node in a first network access to a second network by a mobile communication device;

• wherein the mobile communication device is connected as a wireless client to both the first and second networks;
• wherein a first gateway converts a first data packet to a first Multipath Transmission Control Protocol (Multipath TCP) packet, and wherein the first data packet uses a connection-oriented transport protocol;
• wherein a second gateway converts the first Multipath TCP packet back to the first data packet;
• thereby establishing a first intermediate Multipath TCP subflow between the first and second gateways serving as transparent proxy servers for first and second networking nodes;
• wherein a second intermediate Multipath TCP subflow is established between the first and second gateways over a separate access network;
• and
• wherein the method comprises the following steps performed by the mobile communication device:
• receiving from the first gateway in the first network a second data packet,
• wherein payload data of the second data packet comprises payload data and header information from a first data packet originating from the first networking node and addressed to the second networking node in the second network;
• retrieving from the second data packet the payload data and header information;
• sending the payload data and header information as a payload of a third data packet to the second gateway.

A computer program product comprising computer-executable instructions run on a computer for executing the steps:

• by a first gateway in a first network, extracting payload data and header information from a first data packet originating from a first networking node and addressed to a second networking node in a second network, and
• sending the extracted payload data and header information as a payload of a second data packet to a mobile communication device;
• and
• by the mobile communication device, receiving the second data packet, retrieving therefrom the extracted payload data and header information, and
• sending the extracted payload data and header information as a payload of a third data packet to a second gateway;
• by the second gateway, receiving the third data packet, retrieving therefrom the first data packet and forwarding the first data packet further to the second networking node;
• by the first gateway, converting the first data packet to a first Multipath Transmission Control Protocol (Multipath TCP) packet;
• and
• by the second gateway, converting the first Multipath TCP packet back to the first data packet;
• and
• thereby establishing a first intermediate Multipath TCP subflow between the first and second gateways serving as transparent proxy servers for the first and second networking nodes;
• establishing a second intermediate Multipath TCP subflow between the first and second gateways over a separate access network.

A data processing system comprising a memory and a processor, the processor configured to:

• by a first gateway in a first network, extract payload data and header information from a first data packet originating from a first networking node and addressed to a second networking node in a second network, and
• send the extracted payload data and header information as a payload of a second data packet to a mobile communication device;
• and
• by the mobile communication device, receiving a second data packet, retrieving therefrom the extracted payload data and header information, and
• send the extracted payload data and header information as a payload of a third data packet to a second gateway;
• by the second gateway, receive the third data packet, retrieving therefrom the first data packet and forwarding the first data packet further to the second networking node;
• by the first gateway, converting the first data packet to a first Multipath Transmission Control Protocol (Multipath TCP) packet;
• and
• by the second gateway, converting the first Multipath TCP packet back to the first data packet;
• and
• thereby establishing a first intermediate Multipath TCP subflow between the first and second gateways serving as transparent proxy servers for the first and second networking nodes;
• establishing a second intermediate Multipath TCP subflow between the first and second gateways over a separate access network.