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: 20190068251
    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.
    Type: Application
    Filed: June 14, 2018
    Publication date: February 28, 2019
    Inventors: Laurent Cariou, Carlos Cordeiro, Assaf Kasher, Solomon Trainin, Chittabrata Ghosh
  • Patent number: 10219286
    Abstract: Embodiments of a station (STA) and method for communication on primary and secondary channel resources are generally described herein. The STA may transmit a grant frame to indicate a transmission of a data payload by the STA during a grant period. The grant frame may indicate whether the data payload is to be transmitted on primary channel resources or on secondary channel resources. The STA may transmit the data payload to a destination STA on the secondary channel resources when the grant frame indicates that the data payload is to be transmitted on the secondary channel resources. The grant frame may be transmitted on the primary channel resources and on the secondary channel resources when the grant frame indicates that the data payload is to be transmitted on the secondary channel resources.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: February 26, 2019
    Assignee: Intel IP Corporation
    Inventors: Laurent Cariou, Chittabrata Ghosh, Carlos Cordeiro, Assaf Kasher
  • Publication number: 20190059101
    Abstract: This disclosure describes systems, methods, and devices related to uplink location measurement report (LMR) feedback. A device may perform availability window negotiation during a negotiation phase of a location determination associated with a first initiating device of one or more initiating devices. The device may determine a status of a first LMR associated with the first initiating device. The device may cause to send a polling request to one more initiating devices during a first availability window. The device may identify a polling response from at least one of the one or more initiating devices. The device may perform one or more sounding measurements with the at least one of the one or more initiating devices during a measurement phase. The device may cause to send a trigger frame to the at least one of the one or more initiating devices.
    Type: Application
    Filed: October 23, 2018
    Publication date: February 21, 2019
    Inventors: Feng Jiang, Chittabrata Ghosh, Qinghua Li, Jonathan Segev, Ganesh Venkatesan
  • Publication number: 20190041509
    Abstract: Methods, apparatuses, and computer readable media for location measurement reporting in a wireless network are disclosed. An apparatus of an initiator station (ISTA), where the apparatus comprises processing circuitry configured to encode a null data packet announce (NDPA) frame for transmission to a responder station (RSTA), the NDPA frame indicating a sounding sequence number, and encode a first null data packet (NDP) for transmission at a time T1 to the RSTA. The processing circuitry may be further configured to: decode a second NDP, the second NDP received from the RSTA, wherein the second NDP is received at a time T4, and decode a first location measurement report (LMR). The processing circuitry may be further configured to in response to an ISTA-to-RSTA LMR feedback agreement between the RSTA and ISTA indicating the ISTA is to send a second LMR, encode a second LMR.
    Type: Application
    Filed: September 11, 2018
    Publication date: February 7, 2019
    Inventors: Feng Jiang, Jonathan Segev, Chittabrata Ghosh, Qinghua Li, Robert J. Stacey, Po-Kai Huang
  • Publication number: 20190044674
    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: Application
    Filed: June 11, 2018
    Publication date: February 7, 2019
    Inventors: Qinghua Li, Xiaogang Chen, Laurent Cariou, Chittabrata Ghosh, Robert Stacey
  • Patent number: 10199720
    Abstract: Computing readable media, apparatuses, and methods for network allocation vector operations to reduce channel access delay. An apparatus of a wireless device is disclosed. The apparatus comprising processing circuitry configure to: select a first one or more directional multi-gigabit (DMG) antennas from DMG antennas of the wireless device. The processing circuitry further configured to configure the wireless device to perform a clear channel assessment (CCA) for each of a plurality of CCA configurations applicable to the first one or more DMG antennas, where each CCA configuration comprises a second one or more of the DMG antennas. The processing circuitry further configured to if each CCA configuration applicable to the first one or more DMG antennas indicate the channel is idle, decrease a backoff time, and, if the backoff time is zero, configure the wireless device to transmit a packet on the channel using the first one or more DMG antennas.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: February 5, 2019
    Assignee: Intel IP Corporation
    Inventors: Ou Yang, Chittabrata Ghosh, Carlos Cordeiro, Solomon B. Trainin
  • Patent number: 10178670
    Abstract: Computing readable media, apparatuses, and methods for signaling UL frame duration in wireless local-area networks. An apparatus of a wireless device is disclosed. The apparatus comprising processing circuitry, the processing circuitry configured to: encode a trigger frame for an uplink (UL) multi-user (MU) communication, the trigger frame including a media access control (MAC) portion including one or more station identifications and a length field to indicate an UL physical layer convergence procedure (PLCP) protocol data unit (PPDU) (UL-PPDU) length, the MAC portion further including a duration field to indicate a time period for other stations to set network allocation vectors. The processing circuitry further configured to: configure the access point to transmit the trigger frame, and decode UL-PPDUs from one or more stations identified by the one or more stations identifications, where a length of each of the UL-PPDUs is to be in accordance with the UL-PPDU length.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: January 8, 2019
    Assignee: Intel Corporation
    Inventors: Chittabrata Ghosh, Yaron Alpert
  • Patent number: 10178694
    Abstract: Computing readable media, apparatuses, and methods for random access with carrier sensing are disclosed. An apparatus is disclosed including processing circuitry configured to: decrement a value of an orthogonal frequency division multiple-access (OFDMA) backoff (OBO) field based on a number of the resource units (RUs) indicated for random access in a trigger frame. The processing circuitry may be further configured to: when the value of the OBO field reaches a predetermined value, randomly select one of the RUs indicated for random access and determine a virtual carrier sense (CS) based on one or more network allocation vectors (NAVs) and perform a physical CS on the selected RU, and if the virtual CS and the physical CS both indicate that the selected RU is idle, transmit a physical (PHY) layer convergence procedure (PLCP) protocol data units (PPDU) on the selected RU in accordance with OFDMA.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: January 8, 2019
    Assignee: Intel IP Corporation
    Inventors: Chittabrata Ghosh, Po-Kai Huang, Robert J. Stacey
  • Publication number: 20190007253
    Abstract: A wireless communication device, method and product. The device includes a memory and processing circuitry coupled to the memory. The processing circuitry comprises logic and is configured to: process a time synchronization function (TSF) information element (IE) from an access point (AP), the TSF IE including information on a plurality of transmit opportunity (TXOP) slots in a frequency domain and in a time domain, the TXOP slots indicating respective narrowband channels of a wideband channel in the frequency domain for communication with the device; generate a data frame based on the TSF IE; and cause transmission of the data frame over a subset of the TXOP slots, the subset being aggregated over at least one of the frequency domain and the time domain.
    Type: Application
    Filed: June 29, 2017
    Publication date: January 3, 2019
    Applicant: Intel IP Corporation
    Inventors: Dave Cavalcanti, Chittabrata Ghosh, Ou Yang
  • Publication number: 20180376458
    Abstract: This disclosure describes methods, apparatus, and systems related to an OFDMA uplink resource allocation framework. An access point may determine a first trigger frame including one or more resource block identifications (RBIDs) associated with one or more resource units on a communication channel. The access point may assign at least one of the one or more RBIDs to at least one device of one or more devices. The access point may cause to send the first trigger frame to the least one device The access point may identify a resource request frame including at least in part a resource request indication associated with the at least one of the one or more RBIDs. The access point may assign one of the one or more resource units based at least in part on the resource request indication.
    Type: Application
    Filed: April 19, 2018
    Publication date: December 27, 2018
    Inventors: Laurent Cariou, Chittabrata Ghosh, Qinghua Li, Robert Stacey
  • Publication number: 20180352572
    Abstract: Apparatuses, methods, and computer readable medium for access categories (ACs) and enhanced distributed channel access functions for trigger frames are disclosed. An apparatus of a wireless device is disclosed. The apparatus comprises processing circuitry configured to contend for access to a wireless medium of a channel with a first access category (AC), where the first AC comprises a first transmission opportunity (TXOP) limit, a first contention window minimum (CWmin), a first contention window maximum (CWmax), and a first arbitration inter-frame space (AIFS) number (AIFSN), and where the wireless device is to contend for the wireless medium in accordance with the first CWmin, the first CWmax, and the first AIFSN. The processing circuitry configured to transmit a trigger frame with a second AC to the stations, where the trigger frame is to start a TXOP with the first TXOP limit, when access to the channel is gained with the first AC.
    Type: Application
    Filed: June 30, 2016
    Publication date: December 6, 2018
    Applicant: Intel IP Corporation
    Inventors: Laurent Cariou, Yaron Alpert, Chittabrata Ghosh, Po-Kai Huang, Robert J. Stacey
  • Patent number: 10149314
    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.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: December 4, 2018
    Assignee: Intel IP Corporation
    Inventor: Chittabrata Ghosh
  • Publication number: 20180331749
    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: Application
    Filed: June 30, 2016
    Publication date: November 15, 2018
    Applicant: Intel IP Corporation
    Inventor: Chittabrata Ghosh
  • Patent number: 10128989
    Abstract: Embodiments of a station (STA), access point (AP) and method for aggregation of data packets are generally described herein. The AP may transmit a trigger frame (TF) to an STA that indicates an access class (AC) constraint parameter and a traffic identifier (TID) aggregation limit parameter. The STA may select a group of aggregate TIDs from which medium access control (MAC) protocol data units (MPDUs) may be aggregated into an aggregated MPDU (A-MPDU). The AC constraint parameter may indicate a recommended AC from which at least a portion of the aggregate TIDs are to be selected. The TID aggregation limit parameter may indicate a number of TIDs to be selected for the group of aggregate TIDs.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: November 13, 2018
    Assignee: Intel IP Corporation
    Inventors: Chittabrata Ghosh, Yaron Alpert, Robert J. Stacey, Daniel F. Bravo
  • Publication number: 20180324697
    Abstract: This disclosure describes methods, devices, and systems related to generate a trigger frame including one or more resource block identifications (RBIDs), each RBID being associated with a respective resource unit of one or more resource units on a communication channel; cause to transmit the first trigger frame to each of one or more devices; process a received power save poll (PS-poll) bit from a first device of the one or more devices on a spatial stream and a first resource unit of the one or more resource units; cause to transmit an acknowledgment to each of the one or more user devices; cause to transmit data buffered in the at least one processor to the first device; and process a received acknowledgment from the first device confirming receipt of the data.
    Type: Application
    Filed: March 2, 2018
    Publication date: November 8, 2018
    Inventors: Laurent Cariou, Chittabrata Ghosh, Robert Stacey
  • Publication number: 20180317166
    Abstract: Methods, computer readable media, and wireless apparatuses are disclosed. The apparatuses including processing circuitry configured to: associate with a master station, decode a frame, where the frame comprises a first duration and a transmitter address and determine that the frame is an intra basic service set (Intra-BSS), an inter (Inter-BSS), or an unclassified frame, where the unclassified frame is the Intra-BSS frame or the Inter-BSS frame. The processing circuitry may be further configured to set an Intra-BSS network allocation vector (NAV) to the first duration if the first duration is longer than a current duration of the Intra-BSS NAV and the frame is determined to be the intra-BSS frame and set the second NAV to the first duration if the first duration is longer than a current duration of the second NAV and the frame is determined to be the inter-BSS frame or the unclassified frame.
    Type: Application
    Filed: May 24, 2018
    Publication date: November 1, 2018
    Inventors: Po-Kai Huang, Robert J. Stacey, Chittabrata Ghosh, Laurent Cariou, Qinghua Li
  • Publication number: 20180302909
    Abstract: System and techniques for a multi-class Long Range Lower Power (LRLP) access point (AP) multifactor intelligent agent control are described herein. A station (STA) association at the AP is received. Here, the association includes Class Identifier (ID) information. The Class ID information encompasses a set of communication parameters. A schedule of LRLP and non-LRLP STAs with associations at the AP is maintained. A transceiver chain is modified based on the schedule and the set of communication parameters to complete a communication with the STA.
    Type: Application
    Filed: April 14, 2017
    Publication date: October 18, 2018
    Inventors: Chittabrata Ghosh, Hassnaa Moustafa, Stephen T. Palermo
  • Patent number: 10091717
    Abstract: A method includes determining information about a radiation pattern of a radar beam that uses a bandwidth. Based on the information, a determination is made whether a channel using at least a portion of the bandwidth is or is not available for access by mobile devices. A transmission is performed to the mobile devices of one or more specific broadcast frames configured to advertise whether the channel is or is not available for access by the mobile devices. Another method includes receiving one or more specific broadcast frames configured to advertise whether a channel is or is not available for access, wherein the channel uses at least a portion of bandwidth used by a radar beam. The channel is or is not accessed based on the one or more specific broadcast frames. The access can be contention-based or contention-free. Apparatus and program products are also disclosed.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: October 2, 2018
    Assignee: Nokia Technologies Oy
    Inventors: Chittabrata Ghosh, Klaus F. Doppler
  • Patent number: 10085261
    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: July 1, 2016
    Date of Patent: September 25, 2018
    Assignee: INTEL IP CORPORATION
    Inventors: Carlos Cordeiro, Solomon B. Trainin, Chittabrata Ghosh
  • Patent number: 10080219
    Abstract: Apparatuses, computer readable media, and methods for uplink sounding in wireless networks are disclosed. An apparatus of a wireless device may include processing circuitry configured to: encode an uplink sounding trigger element (USTE) for one or more stations, the USTE comprising one or more uplink (UL) resource allocations for the one or more stations to transmit one or more uplink sounding referee elements (USREs) to the wireless device. The processing circuitry may be further configured to configure the wireless device to transmit the USTE to the one or more stations, and decode the one or more USREs from the one or more station, wherein the one or more USREs are to be received by the wireless device in accordance with a corresponding resource allocation indicated in the USTE.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: September 18, 2018
    Assignee: Intel Corporation
    Inventors: Chittabrata Ghosh, Yaron Alpert, Ziv Avital, Avi Mansour