Invention Grant
- Patent Title: Partial packet recovery for wireless networks
- Patent Title (中): 无线网络的部分数据包恢复
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Application No.: US11934991Application Date: 2007-11-05
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Publication No.: US08386892B1Publication Date: 2013-02-26
- Inventor: Kyle Jamieson , Hari Balakrishnan
- Applicant: Kyle Jamieson , Hari Balakrishnan
- Applicant Address: US MA Cambridge
- Assignee: Massachusetts Institute of Technology
- Current Assignee: Massachusetts Institute of Technology
- Current Assignee Address: US MA Cambridge
- Agency: Anderson Gorecki & Rouille LLP
- Main IPC: H03M13/00
- IPC: H03M13/00 ; H03M13/45

Abstract:
A method, apparatus and computer program product for providing partial packet recovery (PPR) for wireless networks is presented. PPR incorporates an expanded physical layer (PHY) interface that provides PHY-independent hints to higher layers about the PHY's confidence in each bit it decodes, and a technique to recover data even when a packet preamble is corrupted and not decodable at the receiver. Also described is an asynchronous link-layer automatic repeat request (ARQ) protocol built on PPR that allows a receiver to compactly encode a request for retransmission of only those bits in a packet that are likely in error.
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