Method and system for enabling HARQ operations on channels...

Details Method and system for enabling HARQ operations on channels... Method and system for enabling HARQ operations on channels...

2007-01-05

2009-12-08

Patel, Jayanti K (Department: 2419)

Multiplex communications

Communication over free space

Combining or distributing information via frequency channels

C370S319000, C714S748000

Reexamination Certificate

active

07630355

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.

REFERENCES:
“IEEE Standard for Local and Metropolitan Area Networks—Part 16: Air Interface for Fixed Broadband Wireless Access Systems,” IEEE Computer Society and the IEEE Microwave Theory and Techniques Society, Oct. 2004.
“IEEE Standard for Local and Metropolitan Area Networks—Part 16: Air Interface for Fixed Broadband Wireless Access Systems, Amendment 2: Physical and Medium Access Control Layers for Combined Fixed and Mobile Operation in Licensed Bands,” IEEE Computer Society and the IEEE Microwave Theory and Techniques Society, Feb. 2006, pp. 218-221, 403-419, 485-496, 648-650.
“Harmonized definitions and terminology for IEEE 802.16j Mobile Multihop Relay,” IEEE 802.16j-06/014r1, Oct. 2006.

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