Patent ID: 7839859
Filing Date: 2010-11-23
Classification: H04L,H04W

Abstract:
1. A method for managing packet transmission through an interface between a wired network and a wireless multi-hop network at the interface to improve the quality of data and voice communication traffic over the networks comprising: monitoring sequence numbers of data packets received for transmission through an interface between a wired network and a wireless multi-hop network at the interface; receiving a most recently received data packet that has an older sequence number than a sequence number of a currently queued packet at the interface; reordering a packet queue at the interface such that the most recently received packet is sent prior to the currently queued packet to avoid timeout for the most recently received packet and thereby reduce congestion on the wireless multi-hop network and improve traffic quality; receiving at the interface an acknowledgement packet indicating that a destination data packet transmitted from one of said networks has not been received at a destination in the other of said networks; and retransmitting the destination data packet directly from the interface to the destination in the other of said networks in response to receiving the acknowledgement packet at the interface to avoid retransmission of the destination data packet from an original destination data packet sender, the acknowledgement packet being a duplicated acknowledgement packet and the destination packet being selected for retransmission by determining that the destination packet has a next sequence number after the sequence number of the duplicated acknowledgement.