Patent Number: 8,578,234

Title: Data link layer tunneling technique for high-speed data in a noisy wireless environment

Abstract: A data link layer tunneling technique improves the throughput of high speed data in noisy wireless environments. Recovering lost frames transmitted between a packet sending unit and a packet receiving unit in a data communications system generally comprises (a) identifying a failure to successfully receive a missed frame at the packet receiving unit; (b) establishing a logical tunnel channel at the packet receiving unit to acknowledge the next successfully received frame; (c) starting a first timer at the packet receiving unit; (c) upon receiving a tunnel establishment request from the packet receiving unit, the packet sending unit resending the missed frame on the logical tunnel channel and starting a second timer; and (d) the packet sending unit resending the missed frame a specified number of times until receiving an acknowledgement from the packet receiving unit.

Inventors: Chintada; Lakshmana Rao (Redmond, WA), Hong; Liang A. (Redmond, WA), Moinzadeh; Kamyar (Renton, WA)

Assignee: AT&T Mobility II LLC

International Classification: H03M 13/00 (20060101)

Expiration Date: 1/05/12017