Method for alleviating hidden node problem in wlan system
AssigneeKt Corporation
InventorsYang Seok JEONG, Joo Young KIM
Life of this patent
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Abstract
Disclosed is a method for alleviating a hidden node problem in a wireless local area network (WLAN) system. A method for detecting a hidden node comprises the steps of: configuring a first restricted access interval used for a plurality of terminals transmitting a hidden node detection frame; configuring a second restricted access interval used for a plurality of terminals transmitting a hidden node report frame generated on the basis of an HND frame; generating a beacon including configuration information of the first restricted access interval and configuration information of the second restricted access interval; and transmitting the generated beacon. Accordingly, a terminal in a hidden node relation can be detected.
Claims13
A method for detecting a hidden node by an access point, the method comprising:
- setting a first restricted access window that is used for multiple terminals transmitting hidden node detecting (HND) frames;
- setting a second restricted access window that is used for the multiple terminals transmitting hidden node reporting (HNR) frames generated based on the HND frame;
- generating a beacon including setting information of the first restricted access window and setting information of the second restricted access window;
- and
- transmitting the generated beacon.
A method for detecting a hidden node by a terminal, the method comprising:
- receiving a beacon from an access point;
- acquiring a time slot allocated to the terminal based on setting information of a first restricted access window and setting information of a second restricted access window included in the beacon;
- transmitting a hidden node detecting (HND) frame in a time slot of the first restricted access window, allocated to the terminal, and receiving an HND frame transmitted from another terminal in a time slot that is not allocated to the terminal;
- generating a hidden node reporting (HNR) frame including information about the received HND frame;
- and
- transmitting the HNR frame in a time slot of the second restricted access window allocated to the terminal.
Dependencies are inferred from the claim text.