Samsung Electronics Co., Ltd.

Kab-Joo Lee

Yong-Mi Lee

Hae-Jin Song

Kyung-Wan Nam

Jae-Sun Choi

There is provided a media access controller with a power-save mode. Particularly, the media access controller of the present invention minimizes power loss by disabling clocks applied to all blocks, including CPU, of the media access controller during the power-save mode. The media access controller of the present invention includes: a power-save master for securing stable transmission/reception of data through bus by respective processors contained in the controller; a wake-up timer for noticing that the power-save mode is expired; a power control unit for determining whether to supply a power to a phase-locked loop, and a timing when clocks for the media access controller are applied and disabled; and a locktime register for storing a locktime when an output of the phase-locked loop is settled. Additionally, there is provided a method of efficiently changing the media access controller from the active mode to the power-save mode, and vice versa.

Media access controller with power-save mode

A bitmap manager, a method of allocating a bitmap memory, a method of generating an acknowledgement between network entities, and a network entity implementing the same. The bitmap manager may include a bitmap memory for storing a block acknowledge of received frames based on a bitmap, a bitmap management information controller for receiving a bitmap entry number and storing bitmap management information associated with the physical address of the bitmap memory, and a bitmap manager finite state machine (BM FSM), receiving an update or an extract request for the received frames, managing the bitmap management information, and updating or extracting the bitmap memory.

Bitmap manager, method of allocating a bitmap memory, method of generating an acknowledgement between network entities, and network entity implementing the same

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Sungnam-shi, South Korea

Kab-Joo Lee