Abstract:
A method is provided by the present invention, comprises determining communication channel quality from a first wireless communications device to one or more other wireless communications devices, and assigning a zone/subband and corresponding power level to the one or more other wireless communications devices based on the communication channel quality. The method is directed toward at least addressing the interference from neighboring Access Points (APs), and reducing interference between devices using different power zones/subbands when the wide-band of Orthogonal Frequency-Division Multiple Access (OFDMA) based technologies were adopted in Wi-Fi systems for unlicensed bands.
Abstract:
This disclosure describes systems, methods, and devices related to signal detection. A device may determine a physical layer protocol data unit (PPDU). The device may append a preamble to the PPDU. The device may generate a frame. The device may send the frame.
Abstract:
Simultaneous dual band operation (2.4 and 5 GHz) is common in APs on the market today, and tri-band devices are expected in the market soon. Link aggregation can also be applicable to multiple air interfaces in the same band (for instance 2 independent IEEE 802.11ac/ax air interfaces at 5 GHz on 2 different 80MHz channels). One exemplary aspect provides technology that enables significantly higher throughput and/or higher reliability for two stations (STAs) or a STA and the access point (AP) when the devices support simultaneous multi-band operation.
Abstract:
Techniques for packet classification for IEEE 802.11ax capable devices are provided. Specifically, methods are presented, that when taken alone or together, provide a device or group of devices with a means for determining the modulation and coding scheme used, through robust bit indication in a WLAN 802.11ax frame.
Abstract:
Some wireless communications environments, such as Wi-Fi, may include inexpensive power amplifiers where the power adjustment may not be accurate, and may also include pathloss measurement errors that are high enough to degrade performance of a power control algorithm. To address this issue, an exemplary aspect is directed toward a finite state power control algorithm and technique that, while designed for next generation Wi-Fi standards, such as 802.11ax, can in general be used with any wireless communication protocol or standard.
Abstract:
An exemplary aspect is directed toward methods, apparatus, and systems related to spatial reuse with overlapping basic service set. A device may determine an overlapping basic service set (OBSS) associated with one or more access points. The device may then reduce a transmit power by a first margin. The device may then increase a packet detection threshold associated with the OBSS by a second margin. The device then sends an uplink data frame to at least one of the one or more access points.
Abstract:
Various embodiments are generally directed to an apparatus, method and other techniques to determine a bandwidth in a frequency band to communicate information to stations, determine an Orthogonal Frequency-Division Multiple Access (OFDMA) tone allocation scheme based on the bandwidth, the OFDMA tone allocation scheme to include one or more resource units each comprising a plurality of tones and each having a fixed location in the bandwidth, and communicate information to the stations based on the OFDMA tone allocation scheme.
Abstract:
A device is disclosed that may identify a frame received from an access point. The device may cause to buffer the payload field. The device may determine that a first payload, in a first payload field, corresponds to a multiband link aggregation (MBLA) Ethertype based at least in part on a logical link layer controller (LLC) field and a subnetwork access protocol (SNAP) Ethertype MBLA field in the first payload, wherein the first payload is within the payload field. The device may cause to remove a LLC MBLA header field from the first payload field. The device may cause to buffer a packet in a reordering queue, wherein the packet is in a second payload field that is in the first payload field. The device may order the packet among a plurality of packets in the reordering queue.
Abstract:
In dense environments, OBSSs can still be very close to each other. Spatial reuse attempts to tune sensitivity levels and transmit power in devices to isolate as much as possible the different OBSSs, so that OBSSs do not share the medium in time, but rather reuse the medium, which is a great addition from IEEE 802.11ax. Interference can however still happen, especially at the edge of BSSs where, for example, there are hidden node(s). Spatial reuse might even increase this interference in this scenario. Instead of forcing protection with RTS/CTS every time on the edge of BSSs, which can have a negative impact on the spatial reuse and on area throughput, inter-BSS interference avoidance solutions can be applied.
Abstract:
A Trigger may be carried in a DL MU PPDU to solicit an UL BA. Then, the AP sends out the following transmission in SIFS time based on the UL BA information. There are numerous situations however where the AP should process the information transmitted (in UL) by multiple STAs and respond to them within the SIFS time. Some AP implementations (in particular the ones that do not use massive hardware (VLSI) accelerators) may not be able to finish the process within the SIFS time due to a very long PHY (Physical Layer) transmission decoding time (e.g., 802.11ax is 16 uS symbols vs 4 uS in legacy IEEE 802.11) and long PHY and MAC information possessing.