Abstract:
In one aspect, a method of communicating via a wireless medium by a wireless communications apparatus within a network is provided. The method includes detecting an operating characteristic associated with a load of the network. The method further includes determining an process for adjusting a size of a contention window in response to a successful transmission of a frame based on the detected operating characteristic, the contention window being provided for determining a deferral period for deferring access to the wireless medium. The method further transmitting information indicating the process to one or more wireless devices operating within the network.
Abstract:
This disclosure provides methods, components, devices and systems for wireless communications. Some aspects more specifically relate to elevation estimation for determining operating channels and transmission parameters. A wireless communication device, such as a cloud service, may receive geolocation information of an access point (AP). Additionally, or alternatively, the wireless communication device may receive air pressure and temperature information of the AP. Using the geolocation information and building datasets including locations and heights of buildings surrounding the AP, the wireless communication device may identify a highest building and based on its, height estimate an elevation of the AP. Based on the estimated building height and elevation, the wireless communication device may determine a set of transmission parameters for the AP and transmit an indication of the set to the AP.
Abstract:
Methods and apparatus for multiple wireless service coexistence are disclosed. The disclosed methodology and accompanying apparatus serve to engage one or more switching devices to connect/disconnect a first service transmitter to a first antenna, connect/disconnect a dual mode receiver and second service transmitter from the first antenna, connect/disconnect the second service transmitter from a second antenna, and connect/disconnect a diversity receiver to the second antenna. A first service transmit signal in a first service can then be transmitted or received using the first antenna, and a second service receive signal in a second service can be transmitted or received using the second antenna and the diversity receiver.
Abstract:
Systems, methods, and devices to communicate in a white space are described herein. In some aspects, wireless communication transmitted in the white space authorizes an initial transmission by a device. The wireless communication may include power information for determining a power at which to transmit the initial transmission. The initial transmission may be used to request information identifying one or more channels in the white space available for transmitting data. In some aspects, a device for wireless communication is disclosed. The device may include a data interleaver with at least a first mode and a second mode. The modes may correspond to transmitting using either two or four channels of the white space.
Abstract:
In a particular embodiment, a method includes applying a first stream to antenna mapping scheme to a preamble portion of a packet. The method further includes applying a second stream to antenna mapping scheme to a data portion of the packet. The second stream to antenna mapping scheme is applied to the data portion of the packet but not to the preamble portion of the packet. The second stream to antenna mapping scheme includes a circulation scheme or a cyclic delay diversity (CDD) scheme.
Abstract:
Certain aspects of the present disclosure relate to a method for enhanced multi-user multiple input multiple output (MU-MIMO) wireless communications. The proposed method may reduce and/or eliminate stringent frequency and time synchronization requirements for stations (STAs) to participate in a downlink MU-MIMO transaction by utilizing deterministic scheduling.
Abstract:
In a particular embodiment, a method includes applying a first stream to antenna mapping scheme to a preamble portion of a packet. The method further includes applying a second stream to antenna mapping scheme to a data portion of the packet. The second stream to antenna mapping scheme is applied to the data portion of the packet but not to the preamble portion of the packet. The second stream to antenna mapping scheme includes a circulation scheme or a cyclic delay diversity (CDD) scheme.
Abstract:
Systems, methods, and devices for wireless communication. In one aspect an apparatus for wirelessly communicating with a wireless station is provided. The apparatus comprises a first transceiver configured to receive a backoff signal from the wireless station during a first time period, the backoff signal configured to indicate a second time period. The apparatus further comprises a processor operationally coupled to the first transceiver and configured to refrain the first transceiver from transmitting a wireless signal during the second time period.
Abstract:
This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for providing uplink broadcast service connectivity via a wireless local area network (WLAN). In some implementations, a wireless device may transmit an uplink communication to an access point (AP) that supports uplink broadcast services, and the AP may forward the uplink communication to a remote destination indicated in the uplink communication. In some implementations, the wireless device may be in an unassociated state and may transmit the uplink communication without establishing a formal wireless session with the AP. The uplink communication may include a request for the AP to embed AP-provided data to the uplink communication before forwarding it the remote destination. This disclosure includes techniques to prevent flooding and unauthorized uplink communications being used for a denial of service attack on the remote destination.
Abstract:
Systems, methods, and devices to communicate in a white space are described herein. In some aspects, wireless communication transmitted in the white space authorizes an initial transmission by a device. The wireless communication may include power information for determining a power at which to transmit the initial transmission. The initial transmission may be used to request information identifying one or more channels in the white space available for transmitting data. In some aspects, a device for wireless communication is disclosed. The device may include a data interleaver with at least a first mode and a second mode. The modes may correspond to transmitting using either two or four channels of the white space.