Method for performing contention-based access for real-time...

Details Method for performing contention-based access for real-time... Method for performing contention-based access for real-time...

2007-06-19

2007-06-19

Shah, Chirag G. (Department: 2616)

Multiplex communications

Channel assignment techniques

Carrier sense multiple access

C370S444000, C370S447000, C370S448000

Reexamination Certificate

active

10290948

ABSTRACT:
A MAC (Medium Access Control) hierarchy module for performing a back-off procedure for real-time application in a station having a frame to be transmitted in a network including a plurality of stations, includes: a priority identification sub-module for identifying a priority of each data to be transmitted; a first CW (Contention Window) generation sub-module for pseudo-randomly generating a CW based on the priority of the data to be transmitted; a back-off time calculation/back-off process sub-module for calculating a back-off time based on the CW and performing the back-off procedure based on the back-off time; and a second CW generation sub-module for randomly generating another CW when there is a collision between transmissions of data having same-order priorities.

REFERENCES:
patent: 4623886 (1986-11-01), Livingston
patent: 6256334 (2001-07-01), Adachi
patent: 2002/0085582 (2002-07-01), Kim
patent: 2002/0163933 (2002-11-01), Benveniste
patent: 2003/0117984 (2003-06-01), Gavette

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