Intel Corporation

Dmitry Akhmetov

Dibakar Das

Laurent Cariou

Po-Kai Huang

Minyoung Park

Carlos Cordeiro

Thomas J Kenney

Chittabrata Ghosh

Adrian Paul Stephens

Feng Jiang

Michelle Xiaohong Gong

Daniel F Bravo

Ehud Reshef

Cheng Chen

Juan Fang

Qinghua Li

Alexander A Maltsev

Xiaogang Chen

Alexander W Min

Dave A Cavalcanti

Guoqing C Li

Ganesh Venkatesan

Javier Perez-Ramirez

Arik Klein

Andrey Pudeyev

Ziv Avital

Changwen Liu

Alexei M Soupikov

Michelle G Gong

For example, an apparatus may be configured to cause an Access Point (AP) to transmit a frame over a wireless communication channel, the frame including a field according to a first Physical layer Protocol Data Unit (PPDU) version decodable by a wireless communication (STA) of a first STA type, the field configured to indicate to the STA of the first STA type that the wireless communication channel is to be reserved for a reserved duration; and to communicate a low-overhead PPDU with a STA of a second STA type over the wireless communication channel during a Synchronized Transmit Opportunity (S-TxOP), wherein the S-TxOP is within the reserved duration, wherein the low-overhead PPDU is configured according to a second PPDU version decodable by the STA of the second STA type, the low overhead PPDU including a low-overhead preamble excluding one or more preamble fields of the first PPDU version.

Apparatus, system, and method of communication during a synchronized transmit opportunity (S-TxOP)

For example, a wireless communication station (STA) may be configured to determine whether a stream of frames is suitable for out-of-order delivery from a first Medium Access Control layer (MAC-layer) process to a second MAC-layer process, the second MAC-layer process is above the first MAC-layer process; and, based on a determination that the stream of frames is suitable for out-of-order delivery, to deliver to the second MAC-layer process one or more frames of the stream of frames according to an out-of-order delivery scheme.

Apparatus, system, and method of out-of-order delivery of wireless communication frames

For example, a non Access Point (AP) (non-AP) wireless communication station (STA) and/or an AP STA may be configured to utilize a mechanism configured to support bandwidth signaling for a link between the non-AP STA and an other non-AP STA. For example, an apparatus may include logic and circuitry configured to cause a non-AP STA to set a channel bandwidth field to indicate a maximum channel bandwidth (BW) for the link between the non-AP STA and an other non-AP STA; and to transmit a frame to an AP STA, the frame including an information element including the channel bandwidth field.

Apparatus, system, and method of communicating bandwidth information of a wireless communication link

This disclosure describes systems, methods, and devices related to multi-link operation. A device may configure a single N×N transmit (TX)/receive (RX) radio to a plurality of 1×1 TX/RX radios, where N is a positive integer. The device may monitor a first channel of a plurality of channels to determine its availability. The device may monitor a second channel of the plurality of channels to determine its availability. The device may identify a first control frame received from an access point (AP) multi-link device (MLD) on the second channel. The device may cause to send a second control frame to the AP MLD on the second channel. The device may configure back to a single N×N TX/RX radio to receive a data frame.

Multi-link operation for a single radio multi-link device

This disclosure describes systems, methods, and devices related to channel access for multi-link devices (MLDs). A MLD may identify a first backoff count associated with a first enhanced distributed channel access function (EDCAF) for a first communication link used by the MLD; identify a second backoff count associated with a second EDCAF for a second communication link used by the MLD, the first backoff count less than the second backoff count; determine a time period after that the first backoff count reaches zero and during which to refrain from transmitting using the first communication link, the time period based on the second backoff count; determine that the first communication link transitioned from an idle state to a busy state during the time period; and generate a third backoff count associated with the first EDCAF based on the first communication link transitioning to the busy state during the time period.

Enhanced channel access for multi-link devices

Embodiments of a beacon interval with boundary time points (BTPs) to improve latency for time sensitive traffic (TST) in Extremely High Throughout (EHT) WLANS are disclosed herein. In some embodiments, a non-access point (AP) station (STA) is configured to decode a beacon frame received from an AP STA. The beacon frame may indicate one or more BTPs within a beacon interval (BI). The non-AP STA may obtain a transmission opportunity (TXOP) for a transmission to the AP STA. The TXOP may be bounded by the one or more BTPs. The non-AP STA may encode a PPDU for transmission to the AP STA during the TXOP.

Beacon interval with boundary time points (BTPs) to improve latency for time sensitive traffic (TST) in extremely high throughout (EHT) WLANS

Beacon interval with boundary time points (BTPS) to improve latency for time sensitive traffic (TST) in extremely high throughout (EHT) WLANS

Embodiments of an access point (AP) configured for extremely high throughput (EHT) operation may be configured to operate as a triggering AP for a trigger-based (TB) peer-to-peer (P2P) communication between a triggered direct (TD) station (STA) and a TD peer STA. The AP may encode a Direct Link Announcement (DiL-A) frame to schedule the TD STA for a direct link transmission to the TD peer STA. The DiL-A frame may be encoded to include a Duration/ID field. The AP may set the Duration/ID field of the DiL-A frame to a remaining duration of a transmission opportunity (TXOP) when the TD peer STA is an EHT STA that supports TB P2P operation (e.g., to allow the TD peer STA to ignore the NAV set by the DiL-A frame). The AP may set the Duration/ID field of the DiL-A frame to a response time for the TD STA to respond to the DiL-A frame when the TD Peer STA is a legacy STA (e.g., to allow the TD peer STA to set its NAV based on the response time).

Trigger-based (TB) peer-to-peer (P2P) communication using direct link announcement (DiL-A) for NAV setting

An access point (AP) may operate as a master AP (AP) to perform multi-AP coordinated beamforming (CBF). The APmay to initiate a first sounding sequence with one or more STAs associated with the AP1 (BSS STAs) and the one or more STAs associated with a second AP (AP) (OBSS STAs). In these embodiments, initiation of the first sounding sequence triggers the APto join the sounding sequence to initiate a second sound sequence with the BSS STAs and the OBSS STAs.

Multi-AP coordinated beamforming (CBF) for extremely high throughput (EHT)

This disclosure describes systems, methods, and devices related to multi-link operation. A device may configure a single N&#xd7;N transmit (TX)/receive (RX) radio to a plurality of 1&#xd7;1 TX/RX radios, where N is a positive integer. The device may monitor a first channel of a plurality of channels to determine its availability. The device may monitor a second channel of the plurality of channels to determine its availability. The device may identify a first control frame received from an access point (AP) multi-link device (MLD) on the second channel. The device may cause to send a second control frame to the AP MLD on the second channel. The device may configure back to a single N&#xd7;N TX/RX radio to receive a data frame.

This disclosure describes systems, methods, and devices related to multi-link acknowledgments. A device may transmit a trigger frame to a station device (STA) multi-link device (MLD), wherein the trigger frame polls the STA MLD to announce presence on communication links. The device may identify a null data packet (NDP) from the STA MLD announcing its presence on a set of communication links. The device may establish the set of communication links with the STA MLD, wherein the STA MLD comprises a plurality of station devices (STAs). The device may allocate a plurality of tone-sets to the plurality of STAs within the STA MLD. The device may identify energy on the allocated tone-sets for each link that the STA MLD has presence on.

Multi-link acknowledgments in multi-link devices

Embodiments of an access point (AP), station (STA) and method of communication are generally described herein. The AP may be configurable for multi-band operation in a plurality of frequency bands, each frequency band comprising one or more channels. The AP may select a subset of the frequency bands for which the AP is to request per-band channel availability information from the STA. The AP may transmit a Trigger Frame (TF) for a multi-band bandwidth query report polling (MB-BQRP) to request the per-band channel availability information. The AP may receive an uplink frame that includes a multi-band bandwidth query report (MB-BQR) that indicates the per-band channel availability information. The AP may determine, based on the MB-BQR, for an uplink transmission by the STA: one or more frequency bands of the subset of frequency bands, and one or more corresponding channels.

Multi-band bandwidth query report (MB-BQR) signaling in extremely high throughput (EHT) systems

Various embodiments of the invention may modify the techniques used in conventional networks, to achieve techniques that are better suited for networks that use highly directional communications. A novel method is described for determining whether a channel in such a network is idle. In addition, various protocols and formats are disclosed that are intended for such a network.

Protocol for MU MIMO operation in a wireless network

A system and method are provided to trigger re-beamforming based on an algorithm that assesses various link characteristics. The algorithm is based on the ability of a 60 GHz receiving device to track and feedback a Received Signal Strength Indication (RSSI) to a 60 GHz data packet transmitter. By automatically analyzing RSSI values across a range of data packets, including consecutive data packets, a link degradation trend is predicted. When link degradation crosses, or is predicted to cross, a predetermined threshold, re-beamforming is triggered by the algorithm. Variables in the algorithm and the predetermined thresholds used by the algorithm can be automatically or manually modified to maintain a balance between appropriately triggering the re-beamforming when the conditions arise without unnecessarily triggering the re-beamforming thereby causing unneeded interruptions in regular data flow.

Growing community of inventors

Hillsboro, OR, United States of America

Dmitry Akhmetov