Enhanced polling method for preventing deadlock in a...

Details Enhanced polling method for preventing deadlock in a... Enhanced polling method for preventing deadlock in a...

2011-07-05

2011-07-05

Pham, Tuan A (Department: 2618)

Multiplex communications

Communication over free space

Combining or distributing information via time channels

C370S389000, C370S324000, C370S401000, C370S412000

Reexamination Certificate

active

07974259

ABSTRACT:
A method of polling in a wireless communications system includes prohibiting polling within a predetermined period and triggering a poll function while polling is prohibited. After the predetermined period has expired the method determines that there are no protocol data units (PDUs) scheduled for transmission or re-transmission and that the poll function was triggered by a “Every Poll_SDU SDU” trigger, and selects a PDU to schedule for re-transmission to fulfill the poll function.

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