Patents by Inventor Chittabrata Ghosh

Chittabrata Ghosh has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20200359313
    Abstract: Techniques for power saving by remote wireless mobile devices are provided, in particular by stations (STAs) during downlink (DL) multiple-user multiple-input and multiple-output (MU-MIMO) transmissions in an Institute of Electrical and Electronics Engineers (IEEE) 802.11ay network when reverse direction (RD) transmissions are either enabled and not enabled. Various embodiments enable each STA in a group of STAs to determine an order in which the STAs are requested to send a block acknowledgement (BACK) and which STAs will be granted an RD transmission. Further, a duration of each RD transmission is provided to each STA. Based on the provided information, each STA can determine times to enter a power saving mode. Other embodiments are described and claimed.
    Type: Application
    Filed: February 10, 2020
    Publication date: November 12, 2020
    Applicant: INTEL IP CORPORATION
    Inventors: OU YANG, CARLOS CORDEIRO, LAURENT CARIOU, CHITTABRATA GHOSH, SOLOMON TRAININ
  • Publication number: 20200351988
    Abstract: A multi-link access point (AP) device is configured for multi-link operation to communicate with a plurality of non-AP stations (STAs) over a plurality of corresponding links. A multi-link policy element is encoded for transmission to the non-AP STAs to signal a multi-link policy. The multi-link policy element comprises a common policy sub-element and a plurality of link-specific policy sub-elements. The common policy sub-element is applicable to all links. Each of the link-specific policy sub-elements is applicable to a single link. The link-specific policy sub-elements comprise at least a first link-specific policy sub-element applicable to a first link and a second link-specific policy sub-element applicable to a second link. The common policy sub-element defines a link policy for all links that have been set up between the multi-link AP device and the non-AP STAs. Each link-specific policy element defines a link policy specific to an associated link.
    Type: Application
    Filed: June 5, 2020
    Publication date: November 5, 2020
    Inventors: Cheng Chen, Laurent Cariou, Dibakar Das, Chittabrata Ghosh, Carlos Cordeiro
  • Patent number: 10820343
    Abstract: Some embodiments relate to methods, computer readable media, and apparatus for resolving acknowledgements between associated and unassociated stations. An apparatus is disclosed including processing circuitry configured to decode responses to a random-access trigger frame, wherein one of the responses is a response from an unassociated station. The processing circuitry may be further configured to: encode an acknowledgement to acknowledge receipt of the response from the unassociated station, where the acknowledgement comprises an indication that the acknowledgement is for the unassociated station, and where the acknowledgement further comprises a media access control (MAC) address of the unassociated station in a field of the acknowledgement other than a field in a MAC header portion of the acknowledgement. The processing circuitry may configure the HE access point to transmit the acknowledgement.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: October 27, 2020
    Assignee: Intel IP Corporation
    Inventors: Chittabrata Ghosh, Laurent Cariou, Robert J. Stacey
  • Publication number: 20200329440
    Abstract: Embodiments of fast steering timing and resource allocation are generally described herein. In some embodiments, a non-access point station (STA) decodes a fast steering timing signaling element (STSE) at a Narrow Band Control sub-Channel (NB-C-CH) and from an allocator device, the STSE indicating at least fast steering timing information, an identified Narrow Band Service sub-Channel (NB-S-CH), resource allocation information for the identified NB-S-CH, and connectivity information for the identified NB-S-CH, the identified NB-S-CH being selected from a plurality of NB-S-CHs. The STA exchanges packets in the NB-S-CH according to the resource allocation information and the connectivity information and based on the fast steering timing information. The STA encodes or decodes data associated with the exchanged packets.
    Type: Application
    Filed: June 21, 2017
    Publication date: October 15, 2020
    Inventors: Yaron Alpert, Chittabrata Ghosh, Robert J. Stacey
  • Patent number: 10785000
    Abstract: This disclosure describes systems, methods, and devices related to a flexible connectivity framework. A first device may send a trigger frame to a second device. The first device may then receive an uplink bandwidth resource request from the second device. The first device may detect a high efficiency-long training field (HE-LTF) in the uplink bandwidth resource request. The first device may send an uplink multiuser trigger frame, and the first device may receive an uplink frame from the second device.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: September 22, 2020
    Assignee: Intel IP Corporation
    Inventors: Qinghua Li, Xiaogang Chen, Laurent Cariou, Chittabrata Ghosh, Robert Stacey
  • Patent number: 10772098
    Abstract: Some demonstrative embodiments include apparatuses, devices, systems and methods of communicating an Enhanced Directional Multi Gigabit (EDMG) support indication. For example, a wireless station may be configured to generate a frame having a structure compatible with a Directional Multi Gigabit (DMG) frame structure, the frame including an EDMG supported field to indicate that the wireless station supports one or more EDMG features; and to transmit the frame over a DMG channel.
    Type: Grant
    Filed: August 26, 2018
    Date of Patent: September 8, 2020
    Assignee: INTEL IP CORPORATION
    Inventors: Carlos Cordeiro, Solomon B. Trainin, Chittabrata Ghosh
  • Publication number: 20200274588
    Abstract: An access point (AP) may operate as a master AP (AP1) to perform multi-AP coordinated beamforming (CBF). The AP1 may 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 (AP2) (OBSS STAs). In these embodiments, initiation of the first sounding sequence triggers the AP2 to join the sounding sequence to initiate a second sound sequence with the BSS STAs and the OBSS STAs.
    Type: Application
    Filed: May 13, 2020
    Publication date: August 27, 2020
    Inventors: Feng Jiang, Qinghua Li, Xiaogang Chen, Po-Kai Huang, Arik Klein, Dmitry Akhmetov, Carlos Cordeiro, Chittabrata Ghosh, Ziv Avital, Dibakar Das, Cheng Chen
  • Publication number: 20200267636
    Abstract: An access point (AP) may be configured by processing circuitry to operate as a coordinator AP for performing BSS channel level coordination. The coordinator AP is configured to assign non-overlapping channels to one or more coordinated APs of overlapping BSSs to schedule time-sensitive traffic to help ensure bounded latency, jitter and reliability per BSS. In some embodiments, the AP may be configured for performing transmission level coordination and may initiate a coordinated transmission opportunity (TXOP) for resource assignment to control contention access among managed BSSs. To perform the BSS channel level coordination, the coordinator AP is configured to encode a multi-AP trigger frame (M-TF) to initiate the coordinated TXOP. The M-TF may be encoded to include a time-sensitive operation IE indicating how each STA is to access the channel within the coordinated TXOP.
    Type: Application
    Filed: May 8, 2020
    Publication date: August 20, 2020
    Inventors: Dave A. Cavalcanti, Juan Fang, Mohammad Mamunur Rashid, Carlos Cordeiro, Cheng Chen, Laurent Cariou, Javier Perez-Ramirez, Dibakar Das, Chittabrata Ghosh
  • Publication number: 20200245297
    Abstract: Computer readable media, methods, and apparatuses for location estimation using multi-user multiple-input multiple-output in a wireless local-area network are disclosed. An apparatus is disclosed comprising processing circuitry configure to: encode a fine timing measurement (FTM) initiate (FTI) frame, the FTI frame comprising M0 message uplink resource allocations for a plurality of responders to transmit M0 messages to the HE STA. The processing circuitry further configured to configure the HE STA to transmit the FTI frame to the plurality of responders, and decode M0 messages from the plurality of responders in accordance with the M0 message uplink resource allocations, where the M0 messages are to be received at the HE STA at times T2 in accordance with multi-user multiple-input multiple-output (MU-MIMO). The processing circuitry further configured to acknowledge the M0 messages to be transmitted at a time T3, and decode M1 messages comprising a corresponding time T1 and time T4.
    Type: Application
    Filed: January 27, 2020
    Publication date: July 30, 2020
    Inventors: Ganesh Venkatesan, Chittabrata Ghosh
  • Patent number: 10721761
    Abstract: Computer readable media, methods, and apparatuses for centralized channel access for primary and secondary channels are disclosed. An apparatus is disclosed comprising memory and processing circuitry. The processing circuitry is configured to encode a schedule of one or more resource allocations, wherein each resource allocation comprises a type of allocation, a bandwidth, an indication of a channel, a source association identification (AID), a destination AID, an allocation start, and a duration. The type of allocation may be a service period (SP) or a contention-based access period (CBAP). The channel may be an indication of a basic service set (BSS) or a personal BSS (PBSS) primary channel, BSS or PBSS secondary channel, or BSS or PBSS tertiary channel. The processing circuitry may be configured to transmit the schedule to one or more stations identified by the source AID and the destination AID of the one or more resource allocations.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: July 21, 2020
    Assignee: Intel IP Corporation
    Inventors: Laurent Cariou, Carlos Cordeiro, Chittabrata Ghosh, Assaf Kasher, Solomon B. Trainin
  • Publication number: 20200221545
    Abstract: Embodiments of a multi-link access point (AP) device, station (STA) and method of communication are generally described herein. The multi-link AP device may comprise multiple APs. The multi-link AP device may encode a frame for transmission by one of the APs of the multi-link AP device. The multi-link AP device may encode the frame to include signaling to enable multi-link discovery of the APs of the multi-link AP device. The multi-link AP device may encode the signaling to include: a reduced neighbor report (RNR) element that identifies the APs of the multi-link AP device, and a multiple AP element. The multiple AP element may be configurable to include: common information for the APs of the multi-link AP device, and per-AP sub-elements that include per-AP information related to the APs of the multi-link AP device.
    Type: Application
    Filed: March 20, 2020
    Publication date: July 9, 2020
    Inventors: Robert J. Stacey, Carlos Cordeiro, Chittabrata Ghosh, Daniel F. Bravo, Dibakar Das, Laurent Cariou, Po-Kai Huang, Xiaogang Chen, Arik Klein, Danny Alexander, Cheng Chen
  • Publication number: 20200214036
    Abstract: 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.
    Type: Application
    Filed: March 11, 2020
    Publication date: July 2, 2020
    Inventors: Alexander W. Min, Dibakar Das, Minyoung Park, Chittabrata Ghosh, Carlos Cordeiro, Cheng Chen, Laurent Cariou, Dmitry Akhmetov
  • Patent number: 10694499
    Abstract: Computer readable media, methods, and apparatuses for location estimation using multi-user multiple-input multiple-output in a wireless local-area network are disclosed. An apparatus is disclosed comprising processing circuitry configure to: encode a fine timing measurement (FTM) initiate (FTI) frame, the FTI frame comprising M0 message uplink resource allocations for a plurality of responders to transmit M0 messages to the HE STA. The processing circuitry further configured to configure the HE STA to transmit the FTI frame to the plurality of responders, and decode M0 messages from the plurality of responders in accordance with the M0 message uplink resource allocations, where the M0 messages are to be received at the HE STA at times T2 in accordance with multi-user multiple-input multiple-output (MU-MIMO). The processing circuitry further configured to acknowledge the M0 messages to be transmitted at a time T3, and decode M1 messages comprising a corresponding time T1 and time T4.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: June 23, 2020
    Assignee: Intel IP Corporation
    Inventors: Ganesh Venkatesan, Chittabrata Ghosh
  • Patent number: 10686628
    Abstract: Embodiments of an access point (AP), station (STA) and method of sounding are generally described herein. The AP may transmit, during a transmission opportunity (TXOP), a trigger frame (TF) to indicate that an STA is to transmit an uplink sounding packet during an uplink sounding period of the TXOP. The AP may attempt to detect the uplink sounding packet during the uplink sounding period. If the uplink sounding packet is not detected during the uplink sounding period, the AP may transmit a recovery packet to cause other STAs to determine a busy condition during the uplink sounding period. If the uplink sounding packet is detected during the uplink sounding period, the AP may determine a channel estimate for the STA based at least partly on the uplink sounding packet.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: June 16, 2020
    Assignee: Intel IP Corporation
    Inventors: Yuval Amizur, Chittabrata Ghosh, Jonathan Segev, Feng Jiang, Qinghua Li, Nir Dvorecki, Robert J. Stacey
  • Patent number: 10687235
    Abstract: Embodiments of an access point (AP), station (STA) and methods of communication are generally described herein. The AP may transmit a trigger frame (TF) that indicates resource units (RUs) that are available for contention based access by STAs for a fine timing measurement (FTM) protocol. The AP may attempt to decode one or more initial fine timing measurement request (iFTMR) frames received in the indicated RUs. The AP may transmit a broadcast acknowledgement (ACK) frame that indicates whether at least one iFTMR frame was decoded. The AP may, for a decoded iFTMR frame: allocate the RU corresponding to the decoded iFTMR frame to a corresponding STA for the FTM protocol; and transmit, in the corresponding RU, an initial fine timing measurement (iFTM) frame that includes an identifier of the corresponding STA.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: June 16, 2020
    Assignee: Intel IP Corporation
    Inventors: Ganesh Venkatesan, Chittabrata Ghosh
  • Publication number: 20200186627
    Abstract: Some demonstrative embodiments include apparatuses, systems and/or methods of negotiating a range measurement protocol.
    Type: Application
    Filed: February 18, 2020
    Publication date: June 11, 2020
    Applicant: INTEL IP CORPORATION
    Inventors: Ganesh Venkatesan, Chittabrata Ghosh, Jonathan Segev
  • Patent number: 10681677
    Abstract: Methods, apparatuses, computer readable media for coordinated transmission among virtual access points (VAPs). An apparatus of a wireless device comprising processing circuitry is disclosed. The processing circuitry is configured to determine to share a multi-station uplink (UL) and/or downlink (DL) transmission opportunity (TXOP) with two stations that are associated with two virtual access points (VAPs), where each of the two stations is associated with one of the two VAPs. The processing circuitry further configured to determine UL resource allocations for the two stations for a trigger frame based on information received from the two VAPs, and to encode the trigger frame for the multi-station UL TXOP, the trigger frame comprising a common VAP identification (ID) of the two VAPs, UL resource allocations for the two stations, and multi-basic service set (M-BSS) identifications (IDs) for each of the two stations.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: June 9, 2020
    Assignee: Intel Corporation
    Inventors: Chittabrata Ghosh, Yaron Alpert
  • Patent number: 10681699
    Abstract: Some demonstrative embodiments include apparatuses, devices, systems and methods of communicating an Enhanced Directional Multi Gigabit (EDMG) support indication. For example, a wireless station may be configured to generate a frame having a structure compatible with a Directional Multi Gigabit (DMG) frame structure, the frame including an EDMG supported field to indicate that the wireless station supports one or more EDMG features; and to transmit the frame over a DMG channel.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: June 9, 2020
    Assignee: INTEL IP CORPORATION
    Inventors: Carlos Cordeiro, Solomon B. Trainin, Chittabrata Ghosh
  • Publication number: 20200169841
    Abstract: Methods, apparatuses, and computer readable media for report identification and power control for ranging in a wireless network are disclosed. An apparatus of a responding station (RSTA) is disclosed, where the apparatus comprises processing circuitry configured to perform ranging with a initiating stations (ISTAs) and maintain a separate sounding dialogue token for each of the ISTAs and transmit a corresponding sounding dialogue token for a ISTA in a trigger frame for ranging and sounding or a null data packet announcement (NDPA) frame, and in a responding to initiating location measurement report. Apparatuses of RSTAs and ISTAS are disclosed that perform power control management during non-trigger-based ranging.
    Type: Application
    Filed: January 17, 2020
    Publication date: May 28, 2020
    Inventors: Dibakar Das, Jonathan Segev, Chittabrata Ghosh, Ganesh Venkatesan, Feng Jiang, Qinghua Li, Xiaogang Chen, Eran Segev, Huaning Niu, Shlomi Vituri, Elad Oren, Chen Kojokaro
  • Patent number: 10651916
    Abstract: Apparatuses, computer readable media, and methods for uplink and downlink sounding for wireless networks are disclosed. An apparatus of a wireless device is disclosed. The apparatus comprising processing circuity configured to: encode a trigger frame for sounding (TF-S), the TF-S comprising an indication of whether a sounding is for uplink (UL) sounding or (DL) sounding, and the TF-S comprising an indication of stations to participate in the UL sounding or the DL sounding; and configure the wireless device to transmit the TF-S to the stations. The processing circuitry may be further configured to: if the sounding is for the DL sounding, encode a null data packet announcement (NDP-A), encode a null data packet (NDP), configure the wireless device to transmit the NDP-A, and configure the wireless device to transmit the NDP.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: May 12, 2020
    Assignee: Intel IP Corporation
    Inventor: Chittabrata Ghosh