摘要:
Embodiments of a high-efficiency WLAN (HEW) master station and method for communicating in accordance with a scheduled OFDMA technique on secondary channels are generally described herein. An access point is configured to operate as part of a basic-service set (BSS) that includes a plurality of high-efficiency WLAN (HEW) stations and a plurality of legacy stations. The BSS operates on a primary channel and one or more secondary channels. In accordance with some embodiments, the access point may communicate with one or more of the HEW stations on one or more of the secondary channels in accordance with a scheduled OFDMA communication technique when the primary channel is utilized for communication with one or more of the legacy devices.
摘要:
Wireless devices, methods, and computer-readable media for transmitting and receiving beacon frames are disclosed. A master station is disclosed. The master station may include circuitry configured to operate in accordance with orthogonal frequency division multiple access (OFDMA) on a plurality of sub-channels and a primary channel. The circuitry may be further configured to assign a high-efficiency wireless local-area network (HEW) station to a sub-channel and transmit a legacy beacon on the primary channel with a first period. The circuitry may be further configured to transmit a HEW beacon on the sub-channel with a second period, wherein the second period is greater than the first period. The circuitry may be further configured to determine that the HEW station has data at the master station, and to transmit the HEW beacon on the sub-channel with an indication that the HEW station has the data. A HEW station is disclosed for receiving HEW beacons.
摘要:
Wireless devices, methods, and computer readable media for transmitting and receiving beacon frames are disclosed. A HEW device may include circuitry configured to: operate in accordance with OFDMA on a plurality of subchannels and a primary channel, and transmit a first beacon on the primary channel to one or more legacy devices. The circuitry may be further configured to transmit a second beacon on the plurality of subchannels to one or more HEW devices. The first beacon may be an 802.11 legacy beacon and the second beacon may be a HEW beacon. A HEW device may include circuitry configured to: tune to an assigned subchannel; and receive a HEW beacon on the assigned subchannel. The circuitry may be configured to: enter a power saving mode; leave the power saving mode; and receive another HEW beacon on the assigned subchannel to synchronize the HEW device with the AP.
摘要:
An apparatus, a method and one or more tangible computer-readable non-transitory storage media. The apparatus comprises a processor and a receive module configured to be executed by the processor to receive a data packet via a wireless communication channel, the packet including one or more pilot signals assigned to one or more corresponding subcarrier frequencies of the packet, the one or more pilot signals arranged to sweep through at least a portion of the plurality of subcarrier frequencies as a function of time. The apparatus further includes a channel estimator module configured to be executed by the processor to determine an initial channel estimation for the communication channel, and to further update a channel estimation for the communication channel using at least a portion of the pilot signals of the packet based on channel conditions.