Abstract:
A method for measuring delay in a wireless fidelity (WiFi) network includes measuring a delay associated with transmission of a packet through the WiFi network in response to a measurement request from a requesting device, and contending for access to a communications channel of the WiFi network after measurement of the delay. The method also includes transmitting the delay as measured to the access point using the communications channel after a successful contention.
Abstract:
A method for transmitting a transmission to a station in a wireless network includes transmitting a preamble of the transmission to the station using a first channel with a first bandwidth, the preamble including a first indicator indicating a second channel with a second bandwidth, the second bandwidth greater than the first bandwidth, and transmitting a data portion of the transmission to the station using the second channel with the second bandwidth.
Abstract:
A method for operating an access point includes receiving information from a first station configured to operate in a non-transmit-indicator-map (TIM) mode, and determining if downlink data intended for the first station is available at the access point. The method also includes transmitting at least one of the downlink data intended for the first station to the first station, a data indicator indicating that the downlink data intended for the first station is available at the access point, information indicating downlink data is available for the first station, and a time indicator indicating a specific time when the downlink data intended for the first station will be sent to the first station.
Abstract:
A method for operating a first station includes broadcasting identifying information during a contention period after obtaining access to a communications medium used to transmit messages. The method also includes receiving a transmission intended for an access point from a second station over the communications medium, and forwarding the transmission to the access point over the communications medium.
Abstract:
In one embodiment, a method for Basic Service Set (BSS) association, comprises receiving, by a station (STA) from an access point (AP), a frame comprising a traffic type indicator, wherein the traffic type indicator indicates a type of STA that is allowed to associate with the AP and the frame is a beacon frame or a probe response frame; and associating the STA with the AP upon determining that a device type of the STA is indicated by the traffic type indicator.
Abstract:
Mobile stations can query independent basic service set (BSS) parameters of a group of Access Points (APs) by setting a Pre-Association Message Exchange BSSID Independent (PAME-BI) bit during Wi-Fi discovery. The PAME-BI bit may be included in a Generic Advertisement Service (GAS) request to indicate that an Access Network Query Protocol (ANQP) request carried by the GAS request is querying both independent and dependent BSS parameters. In some embodiments, the PAME-BI bit is included as a field in the ANQP query, rather than the GAS request message.
Abstract:
In one embodiment, a method includes receiving, by a station (STA) from an access point (AP), a frame including a device type indicator and comparing the device type indicator with a device type accepted by a basic service set (BSS) of the AP to produce a comparison. The method also includes determining whether to associate the STA with the AP in accordance with the comparison, associating the STA with the AP upon determining to associate the STA with the AP, and not associating the STA with the AP upon determining not to associate the STA with the AP.
Abstract:
A method for operating an access point includes identifying one or more stations to receive a transmission from the access point, and generating a traffic indication map (TIM) for the one or more stations identified, the TIM in accordance with a TIM generating rule, the TIM identifying at least an offset length and a number of entries. The method further includes broadcasting a beacon carrying the TIM to the one or more stations identified, the one or more stations configured to decode the beacon according to the TIM generating rule.
Abstract:
A method for operating an access point includes identifying one or more stations to receive a transmission from the access point, and generating a traffic indicator map (TIM) for the one or more stations identified, the TIM in accordance with a TIM generating rule, the TIM identifying at least an offset length and a number of entries. The method further includes broadcasting a beacon carrying the TIM to the one or more stations identified, the one or more stations configured to decode the beacon according to the TIM generating rule.
Abstract:
It is possible to shorten channel monitoring periods of unoccupied channels during Wi-Fi discovery by verifying whether or not a message indicating the presence of a Wi-Fi AP has been detected prior to the probe timer reaching a medium channel time (MedChannelTime). For example, STAs detecting some channel activity during the clear channel assessment may nevertheless discontinue monitoring a Wi-Fi Channel when no messages indicating the presence of a Wi-Fi AP are detected prior to expiration of the MedChannelTime. Messages indicating the presence of a Wi-Fi AP may include any Wi-Fi messages sent from or destined for a Wi-Fi AP, while excluding probe requests and non-Wi-Fi messages.