Window-based polling scheme for a wireless communications...

Details Window-based polling scheme for a wireless communications... Window-based polling scheme for a wireless communications...

2005-05-03

2005-05-03

Pham, Chi (Department: 2667)

Multiplex communications

Communication over free space

Combining or distributing information via time channels

C370S449000, C370S496000

Reexamination Certificate

active

06888816

ABSTRACT:
A transmitter is capable of transmitting layer2protocol data units (PDUs). Each PDU has an n-bit sequence number. A base sequence number VT(A) is obtained that marks a beginning sequence number of a transmitting window of the transmitter. A current sequence number VT(S) is obtained that marks a sequence number of a PDU that is next to be transmitted by the transmitter. 2nis added to a difference of the current sequence number VT(S) and the base sequence number VT(A) to yield a first value. A second value is obtained that is a modulus of the first value with 2n. A test value is then obtained that is the second value divided by a size of the transmitting window. Polling is triggered when the test value is greater than or equal to a polling value. The polling value represents a percentage of the transmitting window that has been transmitted.

REFERENCES:
patent: 5896561 (1999-04-01), Schrader et al.
patent: 6640268 (2003-10-01), Kumar
patent: 6697331 (2004-02-01), Riihinen et al.
patent: 6721285 (2004-04-01), Carro

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