Intel Corporation

Intel IP Corporation

Arik Klein

Po-Kai Huang

Robert J Stacey

Laurent Cariou

Daniel F Bravo

Danny Ben-Ari

Danny Alexander

Xiaogang Chen

Carlos Cordeiro

Cheng Chen

Ido Ouzieli

Ziv Avital

Ofer Schreiber

Yaron Alpert

Daniel Leiderman

Alexander W Min

Avner Epstein

Amir Hitron

Qinghua Li

Chittabrata Ghosh

Dibakar Das

Johannes Berg

Rath Vannithamby

Feng Jiang

Avi Mansour

Thomas J Kenney

Shahrnaz Azizi

Jing Zhu

Ehud Reshef

Dave A Cavalcanti

Ofer Hareuveni

Juan Fang

Nir Yizhak Balaban

Necati Canpolat

Dmitry Akhmetov

This disclosure describes systems, methods, and devices related to group addressed data delivery. A device may determine a plurality of links between one or more access points (APs) in an AP multi-link device (MLD) and one or more logical non-AP stations (STAs) in a non-AP MLD. The device may determine one or more group addressed frames to be sent from the one or more APs of the AP MLD to the one or more non-AP STAs of the non-AP MLD. The device may generate a delivery traffic indication map (DTIM) associated with each link to be used by the one or more non-AP STAs of the non-AP MLD to receive group addressed frames. The device may perform an action based on whether the non-AP MLD sent an indication that a first link of the plurality of links is selected by the non-AP MLD for receiving a first group addressed frame from the one or more group addressed frames.

Group addressed data delivery

For example, a wireless communication device may be configured to determine an expected interference-based value corresponding to an Uplink (UL) transmission from a wireless communication station (STA) in a Trigger-Based (TB) Multi-User (MU) UL transmission to be communicated from a plurality of STAs to the wireless communication device; to determine one or more transmit (Tx) configuration parameters for the STA based on the expected interference-based value corresponding to the UL transmission from the STA; and to transmit a trigger frame to trigger the TB MU UL transmission, the trigger frame including the one or more Tx configuration parameters to configure the UL transmission from the STA.

Apparatus, system and method of configuring an uplink transmission in a trigger-based multi-user uplink transmission

The application relates to a method and apparatus used in Wireless Local Area Networks (WLANs). The apparatus includes: a Radio Frequency (RF) interface; and processor circuitry coupled with the RF interface and configured to: determine Buffered Unit (BU) information, which indicates presence or absence of BUs for a set of non-Access Point (AP) Multi-link Devices (MLDs) on an AP MLD; encapsulate the BU information for the set of non-AP MLDs in a Multilink (ML) Traffic Indication Map (TIM) information element; and provide the ML TIM information element to the RF interface for broadcasting, wherein the ML TIM information element comprises a series of TIM segments and each TIM segment contains the BU information, which indicates the presence or absence of BUs for a subset of non-AP MLDs on a corresponding AP within the AP MLD.

Method and apparatus used in WLANs

This disclosure describes systems, methods, and devices related to security for multi-link operation. A device may determine a multi-link communication with a first multi-link device comprising two or more links associated with two or more station devices (STAs) included in the first multi-link device. The device may determine a first medium access control (MAC) address associated with a first link of the two or more links. The device may determine a second MAC address associated with a second link of the two or more links. The device may generate one or more pairwise security keys to be used in the multi-link communication on the two or more links. The device may cause to send a frame to the first multi-link device using at least one combination of the one or more pairwise security keys.

Security for multi-link operation

This disclosure describes systems, methods, and devices related to security for multi-link operations. A multi-link device (MLD) may establish a first communication link between a first device of the MLD and a first device of a second MLD, and a second communication link between a second device of the MLD and a second device of the second MLD. The MLD may generate a group-addressed message. The MLD may protect the group-addressed message using a first key or a first integrity key. The MLD may protect the group-addressed message using a second key or a second integrity key. The MLD may send, using the first communication link, the group-addressed message protected using the first key or the first integrity key, and may send, using the second communication link, the group-addressed message protected using the second key or the second integrity key.

Enhanced security for multi-link wireless operations

This disclosure describes systems, methods, and devices related to high throughput (HT) control information. A device may determine a frame comprising HT control information. The device may determine to extend a size of the HT control information. The device may cause to generate a management or data frame for sending to a first station device of one or more station devices, the management or data frame comprising extended high throughput (HT) control information, define a new control identification (ID) associated with the extended HT control information, and cause to send the management or data frame to the first station device.

High throughput control information and field extension

Methods, computer readable media, and apparatus for determining a receive (Rx) number of spatial streams (NSS) for different bandwidths (BWs) and modulation and control schemes (MCSs) are disclosed. An apparatus is disclosed comprising processing circuitry configured to decode a supported HE-MCS and a NSS set field, the supported HE-MSC and NSS set field received from an high-efficiency (HE) station. The processing circuitry may be further configured to determine a first maximum value of N receive (Rx) SS for a MCS and a bandwidth (BW), where the first maximum value of N Rx SS is equal to a largest number of Rx SS that supports the MCS for the BW as indicated by the supported HE-MCS and NSS set field; and, determine additional maximum values based on an operating mode (OM) notification frame, and a value of an OM control (OMC) field. Signaling for BW in 6 GHz is disclosed.

Determining a number of spatial streams and a bandwidth

An access point (AP) station (STA) (AP STA) that is part of an AP multi-link device (MLD) may be configured as a reporting AP may encode a BSS Transition Management (BTM) request frame for transmission to one or more associated non-AP stations (STAs). The BTM request frame may include a neighbor report element encoded to include information about one or more neighbor APs. The neighbor report element may indicate whether the one or more neighbor APs identified in the neighbor report element are part of an AP MLD and, when a neighbor AP is indicated to be part of an AP MLD whether the reporting AP is part of the indicated AP MLD. The AP STA may decode a reassociation frame from one of the non-AP STAs for transition from one of the AP STAs of the AP MLD to one of the neighbor APs.

Neighbor report for an access point multi-link device

An extremely high-throughput (EHT) station (STA) is configured for transmission of a control response frame for rate selection. In response to a frame carried in an EHT PPDU soliciting a control response frame, the EHT STA may calculate a duration of a non-HT PPDU containing the control response frame sent at a primary rate, The EHT STA may also encode a high-efficient (HE) single-user (SU) PPDU (HE SU PPDU) for transmission to carry the solicited control response frame when a transmit time of the encoded HE SU PPDU is less than the calculated duration of the non-HT PPDU, or encode an EHT PPDU for transmission to carry the solicited control response frame when a transmit time of the encoded EHT PPDU is less than the calculated duration of the non-HT PPDU. A reduction in overhead may be achieved by using an HE SU PPDU or an EHT PPDU instead of a non-HT PPDU to carry a solicited control response frame.

EHT STA configured for transmission of a control response frame for rate selection

Multi-link device (MLD) devices and transitions are described. The MAC addresses of the AP MLD and non-AP MLD are used to generate keys for different fast transitions (FT) between a non-AP MLD and an AP MLD. In an FT initial mobility domain operation, the AP MLD MAC address is used as the R1KH-ID and the non-AP MLD MAC address is used as the S0KH-ID and S1KH-ID. The MAC addresses are exchanged in Authentication Request/Response or Association Request/Response messages and the GTK/IGTK/BIGTK are delivered in a single FT 4-way handshake. In a fast MLD transition to an AP MLD in the same ESS, the other AP MLD MAC address is used as the R1KH-ID and the non-AP MLD MAC address is used as the S1KH-ID. The MAC addresses are exchanged in Authentication Request/Response or Association Request/Response messages and the GTK/IGTK/BIGTK are delivered in an FTE.

Multi-link device re-setup and transition

This disclosure describes systems, methods, and devices related to intra-basic service set (BSS) signaling for multiple access points (APs). A device may determine one or more access points (APs), wherein the one or more APs are in a set of multiple basic service sets (BSSs) identified as intra-BSS. The device may include, in a first frame, a high-efficiency operation element comprising a bit associated with an indicator of the set of multiple BSSs. The device may include, in a second frame, an association identification (AID) value, wherein the AID value is associated with the device. The device may cause to send the first frame a first station device of one or more station devices. The device may cause to send the second frame to a second station device of the one or more station devices.

Intra basic service set signaling for multiple access points

Embodiments of an access point (AP), station (STA) and method of communication are generally described herein. The AP may be configurable to operate as a controlling AP of a multi-AP group. The controlling AP may establish the multi-AP group by: transmitting one or more messages to advertise the multi-AP group; and exchanging signaling with one or more of the other APs of the multi-AP group. The signaling may include at least one message related to one of the other APs joining the multi-AP group. The controlling AP may establish the multi-AP group to enable usage of AP Trigger Frames (AP TFs) for coordination of resources to be used for downlink transmissions of the APs of the multi-AP group.

Access point (AP) multi-link device (MLD) configured for multi-link operation (MLO)

Growing community of inventors

Givaat Shmuel, Israel

Arik Klein