Multiplex communications – Channel assignment techniques – Carrier sense multiple access
Reexamination Certificate
2008-07-15
2008-07-15
Pham, Chi (Department: 2616)
Multiplex communications
Channel assignment techniques
Carrier sense multiple access
C455S432100, C455S574000
Reexamination Certificate
active
07400642
ABSTRACT:
Disclosed is a method for controlling an operational state of a medium access control layer in a broadband wireless access communication system. The method includes the steps of performing an uplink access of a contention-based scheme to an access point using resources required to perform the uplink access according to the contention-based scheme when data to be transmitted in an access state is detected, and being allocated resources required to perform an uplink access of a contention-free scheme from the access point in a case of failing in the uplink access of the contention-based scheme; and performing a state transition from the access state into the traffic state in a case of having been allocated the resource required for the contention-free scheme, and performing the uplink access of the contention-free scheme to the access point using the allocated resource in the traffic state.
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Kang Hyun-Jeong
Kim So-Hyun
Koo Chang-Hoi
Lee Sung-jin
Son Jung-Je
Boakye Alexander O.
Pham Chi
Samsung Electronics Co,. Ltd
The Farrell Law Firm PC
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