Method and apparatus for controlling access to a...

Details Method and apparatus for controlling access to a... Method and apparatus for controlling access to a...

2005-08-03

2008-11-25

Pham, Brenda (Department: 2416)

Multiplex communications

Channel assignment techniques

Carrier sense multiple access

C370S447000

Reexamination Certificate

active

07457307

ABSTRACT:
A method and an apparatus provide for controlled access to a shared communication medium. Time slots on a forward channel include information regarding status useful for remote units to determine whether a reverse channel is available for seizure. Additionally, information along the forward channel provides guidance to the remote units to control attempts to seize the reverse channel. In one embodiment a remote unit divides a data package into a plurality of portions and attempts to seize the reverse channel using a single portion of the data package which corresponds to one time slot on the reverse channel. It then waits until it receives notification along the forward channel that the first data portion was successfully received before it attempts to send any of the remainder of its data in consecutive time slots on the reverse channel.

REFERENCES:
patent: RE37301 (2001-07-01), Lo
A. Chockalingam et al., “Performance of a Wireless Access Protocol on correlated Rayleigh-Fading Channels with Capture,”IEEE Transactions on Communications,vol. 46, No. 5, May 1998, pp. 644-655.

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