Abstract:
A method of communicating in a wireless network comprises controlling a bandwidth or a transmission mask of a PPDU transmitted by a transmitting STA to a receiving STA within a TXOP based on bandwidth information in at least one preceding frame within the TXOP. The method and associated devices allow a control of TXOP bandwidth or transmission mask where devices capable of both dynamic and static bandwidth operation may be present within the network. The preceding frame may include a non-HT frame of a non-HT duplicate frame exchange, such as a non-HT duplicate RTS/CTS exchange or a BAR/BA exchange, where the bandwidth or the transmission mask would be controlled by being limited to be less than or equal to a bandwidth of the non-HT frame. The preceding frame may include a preceding PPDU, where the bandwidth or the transmission mask would be limited to be less than or equal to a bandwidth of the preceding PPDU.
Abstract:
According to various embodiments, a computer-implemented method is disclosed that allows an AP to efficiently poll various information from STAs belonging to a SDMA group. Each STA may transmit uplink frames using uplink SDMA mechanism.
Abstract:
Embodiments of a MU-MIMO access point, user station and method for multi-user group management are generally described herein. In some embodiments, a MU-MIMO access point may assign a MU group identifier (GID) and a group member index (GMI) to each of a plurality of associated user stations. The MU-MIMO access point may transmit a MU-MIMO transmission that includes a plurality of spatial streams. The MU-MIMO transmission may be destined for the user stations of a single MU group indicated by a GID that is included within the MU-MIMO transmission. A subset of the spatial streams may be intended for each user station of the indicated MU group that is identified by the GID transmitted within the MU-MIMO transmission. A user station may use its assigned GMI along with an Nsts field in the MU-MIMO transmission to determine which of the spatial streams to demodulate.
Abstract:
In a device or system, a total tone count is determined or selected for modulating a data payload. Two or more code words are interleaved into the data payload, and the data payload is transmitted on a channel of the device or system.
Abstract:
Embodiments of a wireless device and methods for rekeying with reduced packet loss in a wireless network are generally described herein. In some embodiments, during rekeying operations a new key for reception may be installed early (i.e., prior to receipt of a rekeying confirmation message). The use of the new key for transmission may be delayed until after receipt of the rekeying confirmation message. The early installation of the new key for reception may allow both the new key and old key to be active at the same time for use decrypting received packets to reduce packet loss during rekeying operations. The rekeying confirmation message may be the fourth message of a four-way handshake for rekeying. In some embodiments, two key identifiers may be alternated between four-way handshakes to prevent deletion of the old key.
Abstract:
Disclosed in some examples are systems, methods, and machine readable mediums which allow for the deployment of advanced radios which are capable of simultaneous transmission and reception on the same frequency in existing wireless networks, while maintaining backward compatibility with older devices.