Patents by Inventor Robert J. Stacey

Robert J. Stacey 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: 20180062805
    Abstract: Methods, apparatuses, computer readable media for setting spatial reuse field for uplink trigger-based PPDU are disclosed. An apparatus of a wireless device can include processing circuitry configured to decode a high efficiency (HE) physical-layer convergence procedure (PLCP) protocol data unit (PPDU) comprising a high-throughput (HT) control field in a media access control (MAC) portion of the HE PPDU. The processing circuitry is further configured to determine whether the HT control field of the HE PPDU contains uplink (UL) multi-user (MU) response scheduling information soliciting a response. in response to determining the HT control field contains the UL MU response scheduling information, the processing circuitry can encode, for transmission, the response PPDU to include a spatial reuse (SR) field set to a default entry.
    Type: Application
    Filed: March 30, 2017
    Publication date: March 1, 2018
    Inventors: Po-Kai Huang, Laurent Cariou, Robert J. Stacey
  • Publication number: 20180063836
    Abstract: Methods, apparatuses, and computer-readable media for classification of basic service sets (BSS) based on transmission opportunity holder addresses are disclosed. An apparatus of a high-efficiency (HE) station is disclosed comprising processing circuitry. The processing circuitry may be configured to if the frame is not classified as an intra basic service set (BSS) or inter BSS, and the frame comprises a transmission holder (TXOP) address: classify the frame as the inter-BSS frame, if the TXOP address matches a first stored TXOP address associated with a basic network allocation vector (NAV) and the first stored TXOP address is classified as an inter basic service set (BSS) frame, or classify the frame as an intra-BSS frame if the TXOP address matches a second stored TXOP address associated with a non-zero intra-BSS NAV.
    Type: Application
    Filed: March 31, 2017
    Publication date: March 1, 2018
    Inventors: Po-Kai Huang, Laurent Cariou, Robert J. Stacey
  • Publication number: 20180054240
    Abstract: Methods and apparatus are described by which a wireless station transmits information to an access point in response to a short feedback request. The response to the short feedback request is transmitted as either energy or lack thereof in one or more long training fields transmitted in a preamble of a physical layer packet. Short feedback trigger frames for requesting the short feedback are also described.
    Type: Application
    Filed: June 21, 2017
    Publication date: February 22, 2018
    Inventors: Laurent Cariou, Robert J. Stacey
  • Patent number: 9900906
    Abstract: Methods, apparatuses, and computer readable media are shown for multi-user scheduling in wireless local-area networks (WLANs). A wireless communication device is shown including circuitry to determine a plurality of schedules for each of a plurality of channels for an orthogonal frequency division multiple access (OFDMA) communication in a wireless local-area network (WLAN). Each of the plurality of schedules may include a frequency allocation for one or more communication devices. The circuitry may be further configured to transmit the corresponding schedule of the one or more schedules on each of the one or more channels. Each of the plurality of schedules may include a schedule type and a user association identification (AID) list. A number of user AIDs in the user AID list may be based on the schedule type.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: February 20, 2018
    Assignee: Intel IP Corporation
    Inventors: Guoqing C. Li, Shahrnaz Azizi, Robert J. Stacey
  • Publication number: 20180049131
    Abstract: Embodiments of a low-power wake-up radio (LP-WUR) are generally described herein. In some embodiments, a wireless device is set to a first state or a second state, wherein in the first state the wireless device is configured to receive wake-up (WU) packets, and wherein in the second state the wireless device is configured to not receive WU packets, wherein the wireless device comprises a WLAN radio and a low-power wake-up radio (LP-WUR). In some embodiments, the wireless device is configured to receive a wake-up packet, turn on the WLAN radio and turn off the LP-WUR. In some embodiments, the wireless device is configured to turn off the WLAN radio and turn on the LP-WUR for power conservation. In some embodiments, the wireless device turns off the WLAN radio and turns off the LP-WUR, and can periodically turn on the LP-WUR radio for extreme power saving.
    Type: Application
    Filed: December 28, 2016
    Publication date: February 15, 2018
    Inventors: Po-Kai Huang, Robert J. Stacey, Minyoung Park
  • Publication number: 20180049130
    Abstract: An apparatus for a station (STA) is generally described herein. The STA includes a low-power WUR (LP-WUR), a local timing synchronization function (TSF) timer, and processing circuitry. The processing circuitry can decode a signal received from an access point (AP) at the LP-WUR, the signal including a TSF value, the TSF value including a subset of octets of a TSF timer associated with the AP. The STA can synchronize the local TSF timer of the STA with the TSF timer associated with the AP by adjusting a local TSF timer based on a count of a number of octets included in the subset of octets. The LP-WUR can wake up a wireless local area network (WLAN) radio of the STA at a wake-up time based on the local TSF timer. Other methods, apparatuses and systems are also described.
    Type: Application
    Filed: December 27, 2016
    Publication date: February 15, 2018
    Inventors: Po-Kai Huang, Robert J. Stacey, Minyoung Park
  • Patent number: 9894653
    Abstract: Methods, apparatuses, and computer readable media for MU-RTS and CTS in WLANs are disclosed. An apparatus is disclosed that comprises circuitry that is configured to generate a packet to indicate a multi-user request-to-send (MU-RTS), wherein the packet indicates one or more HEW station information fields, wherein the one or more HEW station information fields comprise an address of a HEW station and an indication of a bandwidth for the HEW station to transmit one or more clear-to-send (CTS) packets; and transmit the packet to the one or more HEW stations. A HEW device is disclosed that includes circuitry configured to receive a multi-user request-to-send (MU-RTS); copy a scramble seed from the MU-RTS to a clear-to-send (CTS) packet; and transmit the CTS packet.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: February 13, 2018
    Assignee: Intel IP Corporation
    Inventors: Po-Kai Huang, Chittabrata Ghosh, Robert J. Stacey, Qinghua Li
  • Patent number: 9893906
    Abstract: Apparatuses, computer readable media, and methods for multicast negative acknowledgements using high-energy long-training fields for feedback are disclosed. An apparatus of a wireless device is disclosed. The apparatus includes memory and processing circuitry coupled to the memory where the processing circuitry configured to: encode one or more packets in accordance with multicast or broadcast, cause to be transmitted the one or more packets to one or more stations, and decode feedback from the one or more stations. The feedback may be received simultaneously on a same resource block for each packet of the one or more packets. Each packet may be represented by one resource block of the one or more resource blocks. The resource blocks may be thirty-six resource blocks per 20 MHz subchannel with nine resource blocks in a frequency domain by four spatial streams.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: February 13, 2018
    Assignee: Intel IP Corporation
    Inventors: Laurent Cariou, Dibakar Das, Yaron Alpert, Robert J. Stacey
  • Publication number: 20180041967
    Abstract: Apparatus, computer readable medium, and method for generating and receiving signal fields in a high efficiency wireless local-area network (WLAN) are disclosed. A high-efficiency wireless local-area network (HEW) device including circuitry is disclosed. The circuitry may be configured to: receive a physical (PHY) header or media access control (MAC) header from a second HEW station, wherein the PHY header or MAC header comprises an indication of a spatial reuse opportunity and a defer duration; adjust one or more parameters to determine whether or not the wireless medium is in use; and determine whether to transmit within the spatial reuse opportunity based on the adjusted one or more parameters. The circuitry may be configured to adjust one or more parameters to determine whether or not the wireless medium is in use in where the parameters are signal detect (SD) threshold, a mid-packet detection (MPD) threshold, and an energy detection (ED) threshold.
    Type: Application
    Filed: August 11, 2017
    Publication date: February 8, 2018
    Inventors: Po-Kai Huang, Robert J. Stacey, Qinghua Li, Rongzhen Yang
  • Patent number: 9882695
    Abstract: Embodiments of a transmission signaling structure for HEW are defined to carry packet information to configure OFDMA receivers for demodulation of a specific portion of the packet and/or to configure receivers for transmission using specific OFDMA and MU-MIMO resources. In some embodiments, the specific portion of the packet comprises one or more minimum bandwidth units of one or more 20 MHz channels. Each 20 MHz bandwidth structure may comprise several minimum bandwidth units to allow each 20 MHz channel to have a have smaller granularity than 20 MHz.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: January 30, 2018
    Assignee: Intel IP Corporation
    Inventors: Shahrnaz Azizi, Thomas J. Kenney, Guoqing C. Li, Eldad Perahia, Robert J. Stacey
  • Patent number: 9882753
    Abstract: In a device or system, a total tone count is determined or selected for modulating a data payload. Two or more code words are interleaved into the data payload, and the data payload is transmitted on a channel of the device or system.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: January 30, 2018
    Assignee: Intel Corporation
    Inventors: Thomas J. Kenney, Eldad Perahia, Robert J. Stacey
  • Patent number: 9883531
    Abstract: Apparatuses, methods, and computer readable media for signaling clear-channel assessment parameters in a high-efficiency wireless local area network (HEW) are disclosed. A HEW master station comprising circuitry is disclosed. The circuitry may be configured to determine one or more clear-channel assessment (CCA) parameters for one or more HEW stations, and transmit a CCA parameter of the one or more CCA parameters to the corresponding HEW station of the one or more HEW stations. The clear-channel assessment parameter may be one from the following group: mid-packet detect (MPD) threshold, energy detect threshold, and signal detect threshold. The HEW master station may determine the CCA parameter based on the at least one of the following group: an uplink signal strength of the HEW device, a signal quality report received from the HEW device, and a downlink signal strength of the master station received by the HEW device.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: January 30, 2018
    Assignee: Intel IP Corporation
    Inventors: Po-Kai Huang, Chittabrata Ghosh, Robert J. Stacey
  • Publication number: 20180027514
    Abstract: Methods, apparatuses, computer readable media for resource unit indication for extended range packets. An apparatus of a wireless device comprising processing circuitry is disclosed. The processing circuitry may be configured to: encode a high-efficiency (HE) extended range (ER) physical (PHY) layer convergence procedure (PLCP) protocol data unit (HE ER PPDU) including a first portion comprising a HE signal (SIG) field, and including a second portion comprising a data field. The HE SIG field may include an indication of a resource unit (RU) for the second portion. The processing circuitry further configured to configure the access point to transmit the first portion on a 20 MHz channel, and to transmit the second portion on the RU, the RU within the 20 MHz channel.
    Type: Application
    Filed: December 27, 2016
    Publication date: January 25, 2018
    Inventors: Xiaogang Chen, Qinghua Li, Feng Jiang, Ilan Sutskover, Robert J. Stacey
  • Patent number: 9877223
    Abstract: Some demonstrative embodiments include devices, systems and/or methods of simultaneously communicating with a group of wireless communication devices. For example, a wireless communication unit may assign a plurality of wireless communication devices to at least one Space-Division Multiple Access (SDMA) group based on traffic-specification (TSPEC) information corresponding to the plurality of wireless communication devices, wherein the wireless communication unit is to simultaneously transmit a plurality of different wireless communication transmissions to the plurality of wireless communication devices of the group, respectively. Other embodiments are described and claimed.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: January 23, 2018
    Assignee: INTEL CORPORATION
    Inventors: Michelle X. Gong, Robert J. Stacey
  • Publication number: 20180020448
    Abstract: Methods, computer readable media, and wireless apparatuses are disclosed for a TXOP duration field disable setting in a HE preamble, such as HE-SIG-A. An apparatus of a wireless device can include processing circuitry configured to decode a HE PPDU received from a second wireless device, the HE PPDU including a first TXOP duration field in a PHY portion of the HE PPDU. The processing circuitry can detect whether the TXOP duration field includes a disable flag based on bit values of the TXOP duration field. The disable flag can indicate absence of duration information in the TXOP duration field. Upon detecting the disable flag, a response HE PPDU can be encoded for transmission to the second wireless device. The response HE PPDU can include a second TXOP duration field with a disable flag within a PHY portion of the response HE PPDU.
    Type: Application
    Filed: December 21, 2016
    Publication date: January 18, 2018
    Inventors: Po-Kai Huang, Daniel F. Bravo, Robert J. Stacey
  • Patent number: 9871644
    Abstract: Wireless devices, methods, and computer-readable media for transmitting and receiving high-efficiency signal fields. An access point (AP) may include circuitry configured to determine a high-efficiency signal (HE-SIG) field for each of a plurality of sub-channels, wherein each HE-SIG field includes a common part and a sub-channel specific part. The circuitry may be further configured to transmit, in accordance with orthogonal frequency division multiple access (OFDMA), on each of the plurality of sub-channels, a corresponding HE-SIG field as a preamble to a physical layer convergence protocol (PLCP) protocol data unit (PPDU), wherein the sub-channel specific part of the corresponding HE-SIG field includes a resource map field that enables a HEW device to determine which portion of the PPDU to demodulate, and wherein the common portion includes information of a format of the PPDU. A HEW device may include circuitry configured to demodulate a PPDU based on a HE-SIG field.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: January 16, 2018
    Assignee: Intel IP Corporation
    Inventors: Robert J. Stacey, Shahrnaz Azizi
  • Patent number: 9866354
    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.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: January 9, 2018
    Assignee: Intel IP Corporation
    Inventors: Robert J. Stacey, Yaron Alpert, Chittabrata Ghosh
  • Patent number: 9866380
    Abstract: Embodiments of a wireless device and methods for rekeying with reduced packet loss in a wireless network are generally described herein. In some embodiments, during rekeying operations a new key for reception may be installed early (i.e., prior to receipt of a rekeying confirmation message). The use of the new key for transmission may be delayed until after receipt of the rekeying confirmation message. The early installation of the new key for reception may allow both the new key and old key to be active at the same time for use decrypting received packets to reduce packet loss during rekeying operations. The rekeying confirmation message may be the fourth message of a four-way handshake for rekeying. In some embodiments, two key identifiers may be alternated between four-way handshakes to prevent deletion of the old key.
    Type: Grant
    Filed: January 4, 2016
    Date of Patent: January 9, 2018
    Assignee: Intel Corporation
    Inventors: Emily H. Qi, Jesse R. Walker, Robert J. Stacey, Herbert Liondas, Marc Jalfon
  • Patent number: 9867210
    Abstract: Embodiments of a transmission signaling structure for HEW are defined to carry packet information to configure OFDMA receivers for demodulation of a specific portion of the packet and/or to configure receivers for transmission using specific OFDMA and MU-MIMO resources. In some embodiments, the specific portion of the packet comprises one or more minimum bandwidth units of one or more 20 MHz channels. Each 20 MHz bandwidth structure may comprise several minimum bandwidth units to allow each 20 MHz channel to have a have smaller granularity than 20 MHz.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: January 9, 2018
    Assignee: Intel IP Corporation
    Inventors: Shahrnaz Azizi, Thomas J. Kenney, Guoqing C. Li, Eldad Perahia, Robert J. Stacey
  • Publication number: 20180007581
    Abstract: Computer readable media, methods, and apparatuses for flow control with acknowledgment feedback. An apparatus of a wireless device comprising: memory; and processing circuitry coupled to the memory is disclosed. The processing circuity may be configured to determine based on buffer capacity parameters of a station and a receive buffer state of the station at least one of a size, a modulation and coding scheme (MCS), a bandwidth of a subchannel, or a number of spatial streams (NSS) for a frame. The processing circuitry may be further configured to encode the frame based on the size, the MCS, the bandwidth of the subchannel, and the NSS. The processing circuitry may be further configured to configure the wireless device to transmit the frame in accordance with the size, the MCS, the bandwidth of the subchannel, the NSS, and one or both of orthogonal frequency division multiple-access (OFDMA) or multi-user multiple-input multiple-output (MU-MIMO).
    Type: Application
    Filed: June 29, 2016
    Publication date: January 4, 2018
    Inventors: Laurent Cariou, Yaron Alpert, Robert J. Stacey