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公开(公告)号：US10805940B2
公开(公告)日：2020-10-13
申请号：US15916195
申请日：2018-03-08
发明人： Yan Zhou , George Cherian , Abhishek Pramod Patil , Alfred Asterjadhi , Venkata Ramanan Venkatachalam Jayaraman
摘要： 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.
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公开(公告)号：US20200288523A1
公开(公告)日：2020-09-10
申请号：US16809456
申请日：2020-03-04
摘要： Methods, systems, and devices for wireless communications are described. 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 modify a transmission parameter for the first wireless link or a clear channel assessment (CCA) parameter for the second wireless link, or a combination thereof. The device may then perform the CCA procedure on the second wireless link and transmit at least a first portion of the message on the first wireless link based on the modified transmission parameter or modified CCA parameter.
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公开(公告)号：US20200213933A1
公开(公告)日：2020-07-02
申请号：US16707825
申请日：2019-12-09
发明人： Abhishek Pramod Patil , George Cherian , Alfred Asterjadhi , Sandip Hom Chaudhuri , Maarten Menzo Wentink , Alireza Raissinia , Lochan Verma , Padmanabhan Venkataraman Karthic
摘要： This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for high efficiency (HE) beacons. HE supported access points (APs) and stations (STAs) may operate on resource deployments used for Wi-Fi technology and without support for legacy devices, also referred to as a greenfield deployment. An AP may identify updated capability information and transmit a HE physical layer convergence protocol (PLCP) protocol data unit (PPDU) including a beacon frame. A STA may receive, from the AP, the HE or EHT PPDU and identify an indication of change to a content or format of the beacon frame relative to a reference beacon frame. Based on the identified indication, the STA may then determine an updated content or format for the beacon frame and process the beacon frame or skip processing for one or more portions of the beacon frame.
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44.发明授权公开(公告)号：US10666368B2
公开(公告)日：2020-05-26
申请号：US16516495
申请日：2019-07-19
发明人： Gwendolyn Denise Barriac , George Cherian , Simone Merlin , Alfred Asterjadhi , Yan Zhou , Gang Ding , Qingjiang Tian
IPC分类号： H04B17/318 , H04W72/08 , H04W16/10 , H04W72/04 , H04W16/14 , H04W84/12 , H04W74/00 , H04W88/08
摘要： Methods and apparatus for managing reuse of a wireless medium are provided. One method of managing reuse of a wireless medium includes determining, at an access point, whether to allow reuse of the wireless medium by one or more stations in a basic service set (BSS). The method further includes transmitting, upon determining to allow reuse, an indication that reuse of the wireless medium can be permitted for stations meeting a criteria. The method further includes determining one or more reuse parameters. The method further includes transmitting the one or more reuse parameters.
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公开(公告)号：US20200076519A1
公开(公告)日：2020-03-05
申请号：US16556017
申请日：2019-08-29
IPC分类号： H04B17/336 , H04L1/00 , H04W24/10
摘要： Methods, systems, and devices for wireless communications are described. Techniques may include transmitting, from an access point (AP) to a first set of stations (STAs) a first message soliciting an uplink transmission by the first set of STAs over a wireless channel, transmitting to a second set STAs a second message including an instruction to monitor the wireless channel for interference during the uplink transmission by the first set of STAs; transmitting to the second set of STAs a third message triggering an interference report; and receiving an interference report based on the second and third messages. Techniques include identifying a plurality of sectors of a geographic coverage area corresponding to the AP; transmitting a set of directional training signals; receiving a signal to noise ratio (SNR) report from multiple STAs; comparing the received SNR reports on a per sector basis; and adjusting communication based on the comparing.
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公开(公告)号：US20200029350A1
公开(公告)日：2020-01-23
申请号：US16514878
申请日：2019-07-17
摘要： This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for managing uplink access in a wireless local area network. A station (STA) may inform an access point (AP) of uplink quality of service (QoS) parameters for a traffic flow from the STA. The AP may control uplink resources to satisfy the QoS parameters. For example, the AP may select from among different access modes (including a single user (SU) access mode, an uplink multi-user (UL-MU) scheduled access mode, a multi-user enhanced distributed controlled access (MU EDCA) access mode, or a low latency (LL) access mode). The AP may cause the STA to use a SU access mode or the LL access mode if the UL-MU scheduled access mode and the MU EDCA access mode are not sufficient to satisfy the uplink QoS parameters for the traffic flow.
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公开(公告)号：US20200015164A1
公开(公告)日：2020-01-09
申请号：US16454794
申请日：2019-06-27
摘要： Methods, systems, and devices for wireless communications are described. A station (STA) may receive a wakeup radio (WUR) frame for the STA at a WUR. The STA may identify, from a number of packet number generation schemes, a scheme that the STA is to use to construct a packet number for the WUR frame. Following the scheme identification, the STA may generate a packet number for the received WUR frame using the identified scheme and determine whether to discard the WUR frame based on the generated packet number. In some implementations, the STA may determine whether the STA is to use, for communications received from an access point (AP) to the WUR, a same key or a second key, the second key being different from a first key used by the STA to receive protected communications from the AP to a primary radio of the STA.
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公开(公告)号：US10484159B2
公开(公告)日：2019-11-19
申请号：US15605836
申请日：2017-05-25
发明人： Alfred Asterjadhi , George Cherian , Simone Merlin
摘要： Methods, apparatus, and systems disclosed provide for the configuration of acknowledgments of data. In some aspects, a method includes generating an aggregated media access control (MAC) protocol data unit (A-MPDU) frame, comprising a media access control protocol data unit (MPDUs), the media access control protocol data unit (MPDUs) comprising a media access control (MAC) header and data, wherein the media access control (MAC) header comprises an indication of an acknowledgment type for the data of the MPDU; and transmitting the A-MPDU onto a wireless network.
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公开(公告)号：US20190268956A1
公开(公告)日：2019-08-29
申请号：US16288037
申请日：2019-02-27
发明人： Yongchun Xiao , Abhishek Pramod Patil , Sandip HomChaudhuri , Ravi Gidvani , Alfred Asterjadhi , George Cherian
摘要： This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer storage media, for implementing multi-link aggregation and conditional inheritance in a first basic service set (BSS). In one aspect, an apparatus may establish a first communication link with a first station (STA) of the first BSS using a first frequency band. The apparatus may determine a first link profile for a second communication link by customizing one or more management elements of management information associated with the first communication link. The apparatus may configure a first non-inheritance element of the first link profile associated with the second communication link to indicate usage of at least one management element of the management information by the second communication link is disabled. The apparatus may generate a management frame that comprises at least the first link profile, and may output the management frame for transmission.
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公开(公告)号：US20190261402A1
公开(公告)日：2019-08-22
申请号：US16270382
申请日：2019-02-07
IPC分类号： H04W72/12
摘要： A wireless station may buffer data associated with one or more traffic identifiers (TIDs), and generate a media access control (MAC) protocol data unit (MPDU) including TID-specific buffer status report (BSR) information. A BSR control field may include an Access Category Identifier (ACI) bitmap and a delta TID parameter indicating a mapping of TID-specific buffer status information to a first and second queue size indicated by the BSR. In some cases, the MPDU may also include a quality of service (QoS) control field, and queue sizes indicated by the BSR control field and QoS control field may be accumulated for reporting buffer status for a TID. Additionally or alternatively, a transmitting wireless station may generate an aggregated MPDU (A-MPDU) including multiple MPDUs with different A-control fields based on a receiving a capabilities information field indicating a number of different aggregated control (A-Control) fields the receiving wireless station supports.
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