Communication system and method for assisting with the transmission of tcp packets

A communication system, which is used in a wireless communication link, comprising;

• a TCP packet sender;
• and
• a sender proxy, configured to:
• receive a plurality of TCP packets from the TCP packet sender and transmit the TCP packets to a receiver proxy;
• calculate a round trip time (RTT) between the sender proxy and the receiver proxy when receiving a feedback packet from the receiver proxy, and comparing a RTT threshold and the RTT between the sender proxy and the receiver proxy;
• determine whether a network between the sender proxy and the receiver proxy is in a congestion state according to the result of the comparison between the RTT threshold and the RTT;
• drop a TCP packet when the network is in the congestion state and transmitting an indication of drop to inform the receiver proxy that the receiver proxy does not need to wait for the dropped TCP packet to be retransmitted from the sender proxy,
• wherein the sender proxy and the receiver proxy are configured between the TCP packet sender and a TCP packet receiver.

A communication system, which is used in a wireless communication system, comprising;

• a TCP packet receiver;
• and
• a receiver proxy, configured to:
• receive a plurality of TCP packets from a TCP packet sender;
• transmit a feedback packet to a sender proxy when receiving a TCP packet;
• and
• receive an indication of drop, indicating that the sender proxy has dropped a TCP packet transmitted from the sender proxy and transmitted the received TCP packets to the TCP packet receiver;
• wherein the indication of drop is used to inform the receiver proxy that the receiver proxy does not need to wait for the dropped TCP packet to be retransmitted from the sender proxy, and the sender proxy and the receiver proxy are configured between the TCP packet sender and the TCP packet receiver.

A method for assisting with the transmission of TCP packets, which is used in a wireless communication link, comprising:

• receiving a plurality of TCP packets from a TCP packet sender and transmitting the TCP packets to a receiver proxy;
• transmitting a feedback packet to a sender proxy when receiving a TCP packet;
• calculating a round trip time (RTT) between the sender proxy and the receiver proxy when receiving the feedback packet, and comparing a RTT threshold and the RTT between the sender proxy and receiver proxy;
• determining whether a network between the sender proxy and the receiver proxy is in a congestion state according to the result of the comparison between the RTT threshold and the RTT;
• and
• dropping a TCP packet when the network is in the congestion state.

A method for assisting with the transmission of TCP packets, which is used in a wireless communication link, comprising:

• receiving a plurality of TCP packets from a TCP packet sender and transmitting the TCP packets to a receiver proxy;
• calculating a round trip time (RTT) between the sender proxy and the receiver proxy when receiving a feedback packet from the receiver proxy, and comparing a RTT threshold and the RTT between the sender proxy and receiver proxy;
• determining whether a network between the sender proxy and the receiver proxy is in a congestion state according to the result of the comparison between the RTT threshold and the RTT;
• dropping a TCP packet when the network is in the congestion state.

A method for assisting with the transmission of TCP packets, which is used in a wireless communication link, comprising:

• receiving a plurality of TCP packets from a sender proxy;
• transmitting a feedback packet to the sender proxy when receiving a TCP packet;
• receiving an indication of drop, indicating that the sender proxy has dropped a TCP packet;
• wherein the indication of drop is used to inform a receiver proxy that the receiver proxy does not need to wait for the dropped TCP packet to be retransmitted from the sender proxy.