The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 08, 2009
Filed:
Jan. 05, 2007
Zhifeng Tao, Allston, MA (US);
Toshiyuki Kuze, Kanagawa, JP;
Shigeru Uchida, Kanagawa, JP;
Kentarou Sawa, Fujisawa, JP;
Koon Hoo Teo, Lexington, MA (US);
Jinyun Zhang, Cambridge, MA (US);
Zhifeng Tao, Allston, MA (US);
Toshiyuki Kuze, Kanagawa, JP;
Shigeru Uchida, Kanagawa, JP;
Kentarou Sawa, Fujisawa, JP;
Koon Hoo Teo, Lexington, MA (US);
Jinyun Zhang, Cambridge, MA (US);
Mitsubishi Electric Research Laboratories, Inc., Cambridge, MA (US);
Abstract
A method and system enables and improves performance of hybrid automatic repeat request (HARQ) operations on channels between stations of an orthogonal frequency division multiple access (OFDMA) wireless communication network. There, the number of parallel HARQ channels is increased adaptively, and one connection identifier is used to unambiguously identify a set of MAC protocol data units (MPDUs) communicated over parallel HARQ channels. A sequence number is used to avoid out-of-order MPDU delivery when MPDUs are transmitted over parallel HARQ channels. The MPDUs can be concatenated or encapsulated. The maximum number of the parallel HARQ channels can be increased to 256, and can be negotiated when a station enters or re-enters the network.