Abstract: The described techniques relate to improved methods, systems, devices, or apparatuses that support clear channel assessment adjustment for in-band link aggregation. Generally, the described techniques provide for improved handling of adjacent channel interference in multi-link aggregation scenarios. In accordance with the described techniques, a device may establish a set of wireless links for communication with a second device, the set of wireless links supporting parallel transmission during at least a first duration of a multi-link session, the set of wireless links including at least a first wireless link and a second wireless link. The device may identify a parameter value modifying a channel availability threshold to use during a channel access procedure for a first wireless channel of the first wireless link based on a presence of the second wireless link. The device may perform the channel access procedure for the first wireless channel based on the identified parameter value.

Abstract: Methods, systems, and devices for wireless communication are described. A wireless device may identify a multi-link aggregation capability (e.g., a capability to transmit in parallel over multiple wireless links), and may transmit an indication of such capability to another wireless device. The indication may be included in an information element (e.g., a multi-band element) of a transmission frame. For example, the indication may be included in a multi-band element of a beacon, of association signaling, of probe signaling, of an add block acknowledgement (ADDBA) request, etc. The indication sent over one of the wireless links may include information for some or all the multiple links supported for multi-link aggregation. This information may include media access control (MAC) address, channel information, operating class, security information, etc. for each link.

Abstract: Features related to providing feedback corresponding to a portion of a data frame while another portion of the data frame is being received are described. In an aspect, a first device may transmit, to a second device, at least one MPDU of a plurality of MPDUs within the data frame via a data channel, and receive feedback corresponding to the at least one MPDU in a feedback channel while at least a first MPDU of the remaining MPDUs within the data frame is being transmitted. In another aspect, a first device, e.g., receiver of data frame, may receive, from a second device, at least one MPDU of a plurality of MPDUs within a data frame, and transmit feedback corresponding to the at least one MPDU while at least a first MPDU of the remaining MPDUs within the data frame is being received.

Abstract: Certain aspects of the present disclosure provide methods and apparatus relating to distribution networks that utilize point-to-point communication between devices. The method comprises generating a frame with information indicating in which time division duplex (TDD) time slots, in a service period (SP) within a data transfer interval (DTI) of the frame, another apparatus is allowed to communicate.

Abstract: Certain aspects of the present disclosure are directed to apparatus and techniques for performing coordinated beamforming (CoBF) transmissions. The apparatus generally includes a processing system configured to generate at least one first frame including an invitation to share resources with one or more first wireless nodes, wherein the apparatus is part of a first basic service set and the one or more first wireless nodes are part of one or more second basic service sets, a first interface configured to output the at least one first frame for transmission to the one or more first wireless nodes, and a second interface configured to obtain, from the one or more first wireless nodes, an identification of one or more second wireless nodes if the invitation is accepted, wherein the second interface is configured to obtain one or more transmissions from at least one of the one or more second wireless nodes.

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for advertising operating channels that are being operated in an unlicensed frequency band. One or more access points (APs) may transmit discovery information on a dedicated discovery channel for the unlicensed frequency band. The discovery information may indicate at least one operating channel that is being used by an AP for providing wireless access. The discovery information also may include other information useful for a station (STA) to discover APs, operating channels, and operating parameters. The STA may monitor the dedicated discovery channel to obtain the discovery information without conducting an active scanning or passive scanning procedure.

Abstract: Various aspects of the disclosure relate to distributed multiple-input multiple-output (MIMO) communication such as coordinated beamforming or Joint MIMO. In some aspects, distributed MIMO is used to support communication in a cluster of wireless nodes (e.g., access points). A distributed MIMO scheduling scheme as taught herein is used to schedule the wireless nodes (e.g., access points and/or stations) operating within the cluster. For example, selected stations may be triggered to communicate with respective access points.

Abstract: Various aspects of the disclosure relate to distributed multiple-input multiple-output (MIMO) communication such as coordinated beamforming or Joint MIMO. In some aspects, distributed MIMO is used to support communication in a cluster of wireless nodes (e.g., access points). A distributed MIMO scheduling scheme as taught herein is used to schedule the wireless nodes (e.g., access points and/or stations) operating within the cluster. For example, stations may be scheduled across basis services sets of the access points for a downlink transmission and/or an uplink transmission.

Abstract: Various aspects of the disclosure relate to distributed multiple-input multiple-output (MIMO) communication such as coordinated beamforming or Joint MIMO. In some aspects, distributed MIMO is used to support communication in a cluster of wireless nodes (e.g., access points). A distributed MIMO scheduling scheme as taught herein is used to determine each wireless node (e.g., station) in the cluster that needs to be nulled by another wireless node (e.g., an access point). For example, one of the wireless nodes may obtain signal measurement information from the other wireless nodes and thereby generate a list of wireless nodes (e.g., access points) that need to null one or more wireless nodes (e.g., stations).

Abstract: Various aspects of the disclosure relate to distributed multiple-input multiple-output (MIMO) communication such as coordinated beamforming or Joint MIMO. In some aspects, distributed MIMO is used to support communication in a cluster of wireless nodes (e.g., access points). A distributed MIMO scheduling scheme as taught herein is used to schedule sounding operations by the wireless nodes (e.g., access points and/or stations) operating within the cluster.

Abstract: Distributed MIMO communication utilizes multiple access points within a cluster. Methods and systems for access point discovery provide for formation of a cluster to support the distributed MIMO communication. In one aspect, a method includes generating, by a first access point, a first message indicating the first access point has distributed MIMO capability and transmitting, by the first access point, the first message on a wireless network. The method further includes receiving, by the first access point, a second message from a second access point, the second message identifying a cluster and determining, by the first access point, to participate in the identified cluster in response to the second message.

Abstract: Methods and systems for receiving an uplink transmission are disclosed. In one aspect, a method includes receiving, by an electronic device, a multiuser transmission from a first station and a second station of a wireless network. The first station is in a basic service set (BSS) and the second station is outside the BSS, and processing the multiuser transmission to obtain uplink data from the first station.

Abstract: Methods, systems, and devices for multi-link wireless communication are described. A block acknowledgment (BA) agreement (e.g., a multi-link BA session) may be established based on exchanged multi-link capability information (e.g., a BA window size, BA scoreboarding information, one or more wireless link identifiers, etc.). In some cases, a BA agreement may be established across some or all of the multiple links. In other cases, a BA agreement may be established on a per-link basis. The BA agreement may further establish one or more sets of sequence numbers, as well as scoreboarding techniques used by the transmitting wireless device for the BA session. The wireless device may then transmit packets to another wireless device using multiple links, and receive a BA with acknowledgement information accounting for the transmitted packets according to the established BA agreement. BAs may be transmitted on one link or on multiple links by the receiving device.

Abstract: Methods, systems, and devices for wireless communication are described. Wireless devices may support parallel communications over multiple wireless links, which may benefit a wireless system in terms of throughput and latency (among other benefits). However, such systems may experience increased system complexity, which may in some cases mitigate some of the benefits provided by the parallel communication links. The described techniques provide for aggregation architectures that address various such complexities. For example, devices communicating in accordance with the described techniques may format data to be transmitted into a set of data units that are allocated to a communication link based on various factors described herein. Correspondingly, a device that receives the data packets may reorder the packets in accordance with the described techniques.

Abstract: Methods, systems, and devices for wireless communication are described. The described techniques may increase throughput of a wireless network, improve utilization of available channels, or provide other benefits. For example, the ability for a single traffic flow to span across different channels may increase the capacity of the network, may reduce communication latency, etc. In accordance with aspects of the present disclosure, a wireless device supporting multi-link communication may identify an anchor link and one or more supplementary links. For example, the anchor link may provide reliable communications while the supplementary links may provide increased throughput relative to the anchor link As an example, the anchor link may be dedicated for use to communicate management or control information, as well as data, while the supplementary links in the multi-link session may be used to communicate data according to the control and management information transmitted on the anchor link.

Abstract: Methods, systems, and devices for wireless communication are described. A wireless device may identify an aggregation capability to communicate in parallel over a plurality of wireless links. The wireless device may in some cases broadcast this aggregation capability (e.g., periodically). Additionally or alternatively, the wireless device may transmit the aggregation capability in response to a request received from another wireless device. In some cases, the first wireless device may transmit a request to a second wireless device inquiring about aggregation capabilities of the second wireless device. The second wireless device may respond with its aggregation capabilities (e.g., or may broadcast its aggregation capabilities independently of receiving the response). The wireless devices may establish a multi-link session based at least in part on the indicated aggregation capabilities.

Abstract: Methods and systems provide implementations for distributed MIMO communication. In one aspect, a method includes receiving a network message including data indicative of user data for transmission by a first access point to a first station over the wireless network prior to the transmission, generating precoded second data for transmission to the first station based on the data indicative of the user data, and transmitting, the precoded data to a third device. In some aspects, the precode data is transmitted by a second access point of a basic service set different than that of the first station to the first station as part of a distributed MIMO communication. In some other aspects, the precoded data is transmitted by a cluster controller to another access point having a basic service set different than that of the first station. The other access point may then transmit a signal based on the precode data to the first station simultaneously with the fist access point also transmitting to the first station.

Abstract: Methods and systems for sounding a wireless network are disclosed. In one aspect, a method includes receiving, by an access point a message including a beamforming report from a device. The device may be a station that is outside a basic service set of the access point. The method also includes transmitting a message to the device based on the beamforming report. For example, in some aspects, the access point may utilize the beamforming report to perform a coordinated beamforming, multi-access point transmission or a multi-access point MIMO transmission. In some aspects, the access point may transmit an interference nulling signal to the device based on the beamforming report. The nulling signal compensates for another simultaneous transmission by the access point that interferes with the device's reception of a message from an access point with which the device is associated.

Abstract: A wireless device may dynamically activate and/or inactivate wireless links for multi-link communications. A transmitting wireless device may indicate one or more wireless links to be activated by a receiving wireless device to receive subsequent multi-link transmissions. The indication may be sent over an anchor wireless link, such that the receiving wireless device may monitor the anchor wireless link, with other wireless links in an inactive or low power state, until an indication is received to activate additional wireless links. The receiving wireless device may then activate wireless links identified by the received indication, and receive data from the transmitting device via the multiple links. The activated wireless links may be inactivated upon expiration of a time duration or upon receiving a second indication to inactivate the active links. That is, indications communicated over an anchor wireless channel may identify other wireless links to be activated, inactivated, or maintained.

Abstract: Various aspects of the disclosure relate to beamforming communication using coordination among a group of apparatuses. For example, a plurality of access points may coordinate to form a beamforming group.