Abstract:
A method includes sending, from an access point of a wireless network to a first station of a plurality of stations of the wireless network, a packet including a preamble, a data portion, and trigger data that includes non-precoded, omni-direction data. The preamble precedes the data portion. The data portion precedes the trigger data. The trigger data is configured to cause the first station to perform a channel measurement responsive to receiving the packet. The access point sends beamformed data to one or more of the plurality of stations. At least one of the plurality of stations includes a mobile station configured to receive the beamformed data. The method also includes receiving, at the access point from the first station, feedback information that includes channel state information associated with the trigger data. The feedback information is received from the first station without polling individual stations of the plurality of stations.
Abstract:
A method of wirelessly communicating a packet includes generating, at a first wireless device, a first packet including a first preamble decodable by a plurality of devices and a second preamble decodable by only a subset of the plurality of devices. The first preamble includes a first signal field. The second preamble includes a first training field. The method further includes transmitting the first packet concurrently with one or more second packets to be transmitted by wireless devices other than the first wireless device.
Abstract:
Methods and apparatuses for providing wireless messages according to various tone plans can include a system including a memory that stores instructions. The system further includes a processor coupled with the memory. The processor is configured to execute the instructions to generate a message for wireless communication according to at least one of a set of 52 tones, for allocation to an individual device, including 48 data tones and 4 pilot tones, and a set of 106 tones, for allocation to an individual device, including 102 data tones and 4 pilot tones. The processor is further configured to execute the instructions to provide the message for transmission.
Abstract:
Methods and apparatus for multiple user uplink are provided. In one aspect, method for wireless communication includes receiving an assignment of a frequency bandwidth for an uplink transmission of a station. The method further includes determining whether a portion of the assigned frequency bandwidth is unavailable for the uplink transmission. The method further includes selectively transmitting the uplink transmission based on whether the portion of the assigned frequency bandwidth is unavailable.
Abstract:
Methods and apparatus for providing wireless messages according to various tone plans can include, for example, a method of wireless communication. The method includes selecting at least one of a 242-tone resource unit (RU), associated with a 256-tone plan including 234 data tones, 8 pilot tones, 3 direct current tones, and 11 edge tones, for transmission over a 20 MHz bandwidth, or a 484-tone RU, associated with a 512-tone plan including 468 data tones, 16 pilot tones, 5 direct current tones, and 23 edge tones, for transmission over a 40 MHz bandwidth. The method further includes providing a message for transmission according to the 256-tone plan or 512-tone plan.
Abstract:
A method of wirelessly communicating a packet includes generating, at a first wireless device, a first packet including a first preamble decodable by a plurality of devices and a second preamble decodable by only a subset of the plurality of devices. The first preamble includes a first signal field. The second preamble includes a first training field. The method further includes transmitting the first packet concurrently with one or more second packets to be transmitted by wireless devices other than the first wireless device.
Abstract:
Systems, methods, and devices for high-efficiency wireless frequency division multiplexing are provided. A method includes exchanging, at an access point, at least one frame reserving a wireless medium with at least one of a first and second wireless device. The method further includes receiving a first communication on a first set of wireless frequencies from the first wireless device. The method further includes receiving a second communication, at least partially concurrent with the first communication, on a second set of wireless frequencies from the second wireless device. The method further includes transmitting at least one acknowledgment of the first and second communication. The first set and the second set are mutually exclusive subsets of a set of wireless frequencies available for use by both the first and second wireless device.
Abstract:
Systems, methods, and computer readable storage media communicate with a wireless device within a dense wireless environment. In one aspect, a method includes determining whether a wireless device is subject to interference, adjusting a transmission attribute based on the determining, and transmitting a message to the wireless device based on the adjusted transmission attribute. In some aspects, adjusting a transmission attribute may include selecting one or more of time division multiplexing or frequency division multiplexing when communicating with the wireless device. In some aspects, particular time periods and/or particular frequency bands may be selected for communication with the device depending on whether the device is subject to interference.
Abstract:
Methods and apparatus for multiple user uplink are provided. In one aspect, method for wireless communication includes receiving an assignment of a frequency bandwidth for an uplink transmission of a station. The method further includes determining whether a portion of the assigned frequency bandwidth is unavailable for the uplink transmission. The method further includes selectively transmitting the uplink transmission based on whether the portion of the assigned frequency bandwidth is unavailable.
Abstract:
Systems, methods, and devices for high-efficiency wireless frequency division multiplexing are provided. A method includes determining, at an access point, a performance characteristic for each wireless device in a set of wireless devices associated with the access point. The method further includes categorizing each wireless device in the set into at least a first and second subset of wireless devices based on the performance characteristic. The method further includes receiving communications from the first subset of wireless devices on a first set of wireless frequencies. The method further includes receiving communications from the second subset of wireless devices on a second set of wireless frequencies, the second set of wireless frequencies being a subset of the first. The first set of wireless devices have a higher performance characteristic than the second set of wireless devices.