摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
Disclosed is a wireless LAN system comprising: a memory; a central processing unit segmenting data, which is to be transferred, into frames, generating descriptors containing frame addresses and lengths in the memory, and storing the segmented frames and the descriptors into the memory in accordance with transmission priorities; a media accessing controller calling the frames of data, which is to be transferred, from the memory with reference to the transmission priorities and the descriptors, and temporarily storing the frames; and a transmitter transferring the frames stored in the media accessing controller. It is possible to improve data transmission speed and control facility, satisfying the quality of service for a standard of communication protocol.
摘要:
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.
摘要:
Provided is a wireless communication device and method aggregating MAC service data units (MSDUs). The wireless communication device (STA) can aggregate a plurality of small-sized MSDUs downloaded from an upper layer into one MAC frame in a MAC layer, transmit the aggregated single frame via a physical layer, and receive and process a data frame having the same frame structure transmitted from another communication device. To aggregate MSDUs into a single frame, a MAC frame structure, communication schemes between communication devices and between an AP and a communication device, and a transmission/reception queue management scheme are newly define.
摘要:
A beacon having a traffic indication map (TIM) and information concerning a beacon interval is generated. The generated beacon is transmitted to stations prior to lapse of Point Coordination Function Interframe Space (PCF IFS) after detecting the condition of the channel. The beacon is transmitted prior to the lapse of PIFS from the time of detecting the condition of the channel to the stations. Therefore, the beacon is transmitted to the stations prior to a frame having a data is transmitted to the stations.