Round trip timeout adjustment in a cellular wireless...

Details Round trip timeout adjustment in a cellular wireless... Round trip timeout adjustment in a cellular wireless...

2007-02-20

2007-02-20

To, Doris H. (Department: 2616)

Multiplex communications

Diagnostic testing

Determination of communication parameters

C370S349000, C370S352000

Reexamination Certificate

active

10173093

ABSTRACT:
A method for servicing a data communication in a cellular wireless communication system adjusts the ARQ operations of an upper protocol layer to compensate for fluctuating bandwidth provided by the cellular wireless communication system. In one embodiment, a Retransmission Time Out (RTO) of the ARQ operations of the upper protocol layer, e.g., Transmission Control Protocol layer, is adjusted to compensate for the fluctuating bandwidth provided by the cellular wireless communication system. Radio resources include a fundamental channel (FCH) and a supplemental channel (SCH). The FCH is allocated for the duration of the data communication while the SCH is periodically allocated and released. The RTO is adjusted so that unnecessary retransmissions are precluded when the SCH is released and also so that retransmissions of lost data segments occur.

REFERENCES:
patent: 6473399 (2002-10-01), Johansson et al.
patent: 6757245 (2004-06-01), Kuusinen et al.
patent: 6760860 (2004-07-01), Fong et al.
patent: 6771659 (2004-08-01), Parantainen et al.
patent: 6992982 (2006-01-01), Meyer et al.

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