公开(公告)号：US10271263B2

公开(公告)日：2019-04-23

申请号：US14998213

申请日：2015-12-26

Applicant: Intel IP Corporation

Inventor： Chittabrata Ghosh ,  Carlos Cordeiro ,  Laurent Cariou

IPC: H04W40/32 ,  H04B7/0452 ,  H04L29/12

Abstract: Systems and methods for frame addressing in DL MU-MIMO transmissions are described. In some embodiments, identifier information identifying receiving devices for a frame may be included in a header of that frame. In various embodiments, the identifier information may include a concatenation of respective identifiers for each of the plurality of receiving devices. In some other embodiments, the identifiers may include information identifying a pre-defined device group including several receiving devices. In some embodiments, the frame may include a medium access control (MAC) frame transmitted by an access point/personal basic service set control point (PCP/AP), and the recipient devices may include non-AP/non-PCP stations (STAs). In some such embodiments, a receiving STA address (RA) field or transmitting STA address (TA) field in a MAC header of the MAC frame may be used as a container for the recipient identifier information.

公开(公告)号：US10149314B2

公开(公告)日：2018-12-04

申请号：US14867863

申请日：2015-09-28

Applicant: Intel IP Corporation

Inventor： Chittabrata Ghosh

IPC: H04W72/12 ,  H04L5/00 ,  H04W48/08 ,  H04W84/12

Abstract: This disclosure describes methods, apparatus, and systems related to cascaded trigger frame indication. A device may determine a beacon frame on a communication channel. The device may determine one or more trigger frames based at least in part on the beacon frame, the one or more trigger frames including at least in part a first trigger frame and a second trigger frame. The device may determine a cascade indication associated with the one or more trigger frames. The device may cause to send the beacon frame to one or more devices. The device may cause to send the first trigger frame to the one or more devices based at least in part on the beacon frame.

公开(公告)号：US20180262984A1

公开(公告)日：2018-09-13

申请号：US15913207

申请日：2018-03-06

Applicant: Intel IP Corporation

Inventor： Po-Kai Huang ,  Robert J. Stacey ,  Chittabrata Ghosh ,  Laurent Cariou ,  Qinghua Li

IPC: H04W52/02 ,  H04B7/0452 ,  H04L5/00 ,  H04W74/00

CPC classification number: H04W52/0209 ,  H04B7/0452 ,  H04L5/0023 ,  H04L5/0055 ,  H04W48/20 ,  H04W74/006 ,  H04W74/02 ,  Y02D70/00 ,  Y02D70/1226 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/26 ,  Y02D70/442

Abstract: Methods, computer readable media, and wireless apparatuses are disclosed. The apparatus comprising a memory and processing circuitry coupled to the memory. The processing circuitry is configured to: associate with a master station, decode a trigger frame or a multi-user request-to-send (MU-RTS) frame from the master station, where the trigger frame or the MU-RTS frame comprises a first duration and a transmitter address, and respond to the trigger frame or the MU-RTS frame if a network allocation vector (NAV) is not set, or if the NAV is set and a saved transmission opportunity (TXOP) holder address for the NAV is the same as the transmitter address of the MU-RTS or trigger frame and the trigger frame or MU-RTS indicates the station is to respond.

公开(公告)号：US10027385B2

公开(公告)日：2018-07-17

申请号：US14757738

申请日：2015-12-23

Applicant: Intel IP Corporation

Inventor： Laurent Cariou ,  Carlos Cordeiro ,  Assaf Kasher ,  Solomon Trainin ,  Chittabrata Ghosh

IPC: H04B7/04 ,  H04B7/06 ,  H04B7/10 ,  H04W4/06 ,  H04W16/28 ,  H04W72/04 ,  H04B7/0408 ,  H04B7/0491

Abstract: Methods and apparatus for multi-destination wireless transmissions as disclosed. An example multi-destination transmitter includes a direction determiner to determine directions for wireless transmission of data to destination devices and a transmission handler to: select a subset of the destination devices that are associated with different ones of a plurality of antennas as indicated by the directions determined by the direction determiner; and transmit the data to the subset of the destination devices via the plurality of antennas.

公开(公告)号：US20180199372A1

公开(公告)日：2018-07-12

申请号：US15838756

申请日：2017-12-12

Applicant: Intel IP Corporation

Inventor： Chittabrata Ghosh

IPC: H04W74/06

CPC classification number: H04W74/06

Abstract: Example methods disclosed herein for a station in a communication system include accessing a response frame received in response to a control frame transmitted to an access point. The response frame indicates a start time for a trigger frame to be transmitted by the access point to trigger the station to transmit an uplink transmission. Disclosed example methods also include controlling a receiver of the station to receive the trigger frame at the indicated start time. Example methods disclosed herein for an access point in a communication system include transmitting a response frame to a station in response to a control frame received from the station. The example response frame indicates a start time for a trigger frame to be transmitted by the access point to trigger the station to transmit an uplink transmission. Disclosed example methods also include transmitting the trigger frame at the indicated start time.

公开(公告)号：US09942843B2

公开(公告)日：2018-04-10

申请号：US14973577

申请日：2015-12-17

Applicant: Intel IP Corporation

Inventor： Po-Kai Huang ,  Robert J. Stacey ,  Chittabrata Ghosh ,  Laurent Cariou ,  Qinghua Li

IPC: H04W4/00 ,  H04W52/02 ,  H04W48/20 ,  H04W74/00 ,  H04B7/0452 ,  H04L5/00 ,  H04W74/02

CPC classification number: H04W52/0209 ,  H04B7/0452 ,  H04L5/0023 ,  H04L5/0055 ,  H04W48/20 ,  H04W74/006 ,  H04W74/02 ,  Y02B80/50 ,  Y02D70/00 ,  Y02D70/1226 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/26 ,  Y02D70/442

Abstract: An apparatus comprising: a memory and processing circuitry coupled to the memory, where the processing circuitry is configured to: associate with a master station, decode a trigger frame or a multi-user request-to-send (MU-RTS) frame from the master station, where the trigger frame or the MU-RTS frame comprises a first duration and a transmitter address, and respond to the trigger frame or the MU-RTS frame if a network allocation vector (NAV) is not set, or if the NAV is set and a saved transmission opportunity (TXOP) holder address for the NAV is the same as the transmitter address of the MU-RTS or trigger frame and the trigger frame or MU-RTS indicates the station is to respond.

公开(公告)号：US09924510B2

公开(公告)日：2018-03-20

申请号：US14670924

申请日：2015-03-27

Applicant: Intel IP Corporation

Inventor： Shahrnaz Azizi ,  Robert J. Stacey ,  Eldad Perahia ,  Thomas J. Kenney ,  Chittabrata Ghosh ,  Po-Kai Huang

IPC: H04L5/00 ,  H04W72/04 ,  H04W84/12

CPC classification number: H04W72/0446 ,  H04L5/0007 ,  H04L5/0037 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/0453 ,  H04W84/12

Abstract: Wireless devices, methods, and computer readable media are disclosed. A high-efficiency wireless local-area network (HEW) master station is disclosed. The HEW master station may include circuitry. The circuitry may be configured to generate one or more resource allocations of a bandwidth for one or more HEW stations. Each resource allocation for a first portion of the bandwidth may be a multiple of a basic resource allocation or the entire first portion of the bandwidth. There may be only one resource allocation for a second portion of the bandwidth that is at least as large as the first portion of the bandwidth. In some embodiments, each resource allocation for the second portion of the bandwidth may be a multiple of the basic resource allocation or the entire second portion of the bandwidth.

公开(公告)号：US09866354B2

公开(公告)日：2018-01-09

申请号：US14964768

申请日：2015-12-10

Applicant: Intel IP Corporation

Inventor： Robert J. Stacey ,  Yaron Alpert ,  Chittabrata Ghosh

IPC: H04W28/06 ,  H04L29/08 ,  H04L5/00 ,  H04W84/12

CPC classification number: H04L5/0007 ,  H04L69/324 ,  H04W28/065 ,  H04W84/12

Abstract: Apparatuses, methods, and computer readable media are disclosed for fragmentation of media access control service data units (MSDU) in a high-efficiency wireless local-area network. An apparatus of a access point or station comprising memory and processing circuitry coupled to the memory is disclosed. The processing circuitry is configured to fragment a media access control (MAC) service data unit (MSDU) into two or more MSDU fragments, and encapsulate the two or more MSDU fragments into two or more aggregated MSDUs (A-MSDUs); one or more A-MSDUs and one or more MAC protocol data units (MPDUs); or, two or more MPDUs. The processing circuitry may be further configured to encode a delimiter in front of a first fragment of the two or more MSDU fragments, where the delimiter indicates a length of the two or more MSDU fragments, and to encode each MPDU to comprise a sequence number.

公开(公告)号：US20180006688A1

公开(公告)日：2018-01-04

申请号：US15199588

申请日：2016-06-30

Applicant: INTEL IP CORPORATION

Inventor： Laurent Cariou ,  Solomon B. Trainin ,  Chittabrata Ghosh ,  Ou Yang ,  Carlos Cordeiro

IPC: H04B7/0452 ,  H04B7/08 ,  H04L29/12 ,  H04L29/08

CPC classification number: H04B7/0452 ,  H04B7/0897 ,  H04L61/6022 ,  H04L69/322

Abstract: For example, an apparatus may include a plurality of Physical layer (PHY) components including circuitry to communicate via a respective plurality of sectorized antennas of a wireless station over a directional frequency band; a plurality of lower Medium Access Control (MAC) components, a lower MAC component of the plurality of lower MAC components configured to control channel access of the wireless station via a respective sectorized antenna of the plurality of sectorized antennas, and to process MAC Protocol Data Units (PDUs) to be communicated via the sectorized antenna; and an upper MAC component configured to cause the wireless station to transmit an information element via at least one sectorized antenna of the plurality of sectorized antennas, the information element comprising at least a MAC address of the wireless station, and a field to indicate a plurality of identifiers (IDs) of the plurality of sectorized antennas.

公开(公告)号：US09788317B2

公开(公告)日：2017-10-10

申请号：US14752250

申请日：2015-06-26

Applicant: Intel IP Corporation

Inventor： Chittabrata Ghosh ,  Robert J. Stacey

IPC: H04W72/04 ,  H04W74/06 ,  H04L1/00 ,  H04L5/00 ,  H04W84/12

CPC classification number: H04W72/0446 ,  H04L1/00 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0057 ,  H04L5/0092 ,  H04W74/06 ,  H04W84/12

Abstract: Embodiments of an access point (AP), user station (STA), and method for channel sounding in a wireless network are generally described herein. The AP may transmit a null data packet (NDP) announcement to indicate an NDP time period reserved for transmission of an NDP by the AP. The AP may further transmit a trigger frame for sounding (TFS) to indicate a scheduled sounding feedback period for multiple STAs, which may include identifiers of the STAs. The AP may further receive sounding feedback from at least some of the STAs during the sounding feedback period.