Patents by Inventor James A. Simon

James A. Simon 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).

  • Patent number: 9820235
    Abstract: A method for reducing power consumption in a communication device. The method includes determining, by the communication device, that a packet transmitted on a communication medium is not intended for the communication device and estimating a length of the packet. If the length is greater than a first threshold but less than a second threshold, selecting a first group of components of the communication device to which to reduce power. If the length is greater than the second threshold, selecting a second group of components of the communication device to which to reduce power. The second group of components includes the first group of components. The method includes reducing power to the selected group of components.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: November 14, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Xiaoru Zhang, James Simon Cho, Tao-Fei Samuel Ng, Sreepathy Laxmanbabu Aida
  • Patent number: 9813938
    Abstract: Systems and methods for dynamically adapting channel access or transmission parameters based upon an identified channel access parameter or previously used transmission parameter are disclosed. In an aspect, an electronic device for communication over a wireless network is disclosed. The electronic device comprises a processor configured to generate a message that identifies one rule of a plurality of rules. Each of the plurality of rules defines a process for adapting a value of a communication parameter based on an identified channel access parameter. Also, each of the plurality of rules provides a particular quality of service and a particular priority for communication with the electronic device. The electronic device further comprises a transceiver configured to transmit the message to a station.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: November 7, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Simone Merlin, Amin Jafarian, Maarten Menzo Wentink, James Simon Cho, Gwendolyn Denise Barriac, Yan Zhou, Hemanth Sampath
  • Publication number: 20170282388
    Abstract: A razor cartridge comprising a housing having an elongated skin contacting element having a plurality of tunnels extending there through to facilitate fluid flow to the blades.
    Type: Application
    Filed: March 21, 2017
    Publication date: October 5, 2017
    Inventors: Roderick Andrew Haines, James Simon Oliver, Mark Peterson, Joia Kirin Spooner-Fleming, Alison Fiona Stephens, James Tandy, Paul Leslie Warrick, Finbarr Charles Ronald Williamson
  • Publication number: 20170273100
    Abstract: Methods, systems, and devices for wireless communication are described. An access point (AP) may win access to an unlicensed frequency channel for a transmission opportunity. For the transmission opportunity, the AP may dynamically schedule a duration of time to be used for uplink transmissions and a duration of time to be used for downlink transmissions. The schedule may be based on a comparison of values for a parameter monitored by the AP. The parameter may be monitored for uplink traffic and for downlink traffic. The parameter may indicate the latency experienced by each direction of traffic, or an intolerance of each direction of traffic to delay. The AP may schedule the uplink and downlink durations to compensate for the discrepancy in latency between the two directions of traffic.
    Type: Application
    Filed: March 18, 2016
    Publication date: September 21, 2017
    Inventors: Xiaolong Huang, Chao Zou, Srinivas Katar, Hao Zhu, James Simon Cho, Alireza Raissinia
  • Publication number: 20170265205
    Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may be communicating on a radio frequency spectrum band of a first radio access technology (RAT) using a set of antennas. The UE may reconfigure at least one antenna of the set of antennas to perform a first scan on the radio frequency spectrum band of a second RAT. The UE may determine, based on the first scan, whether to reconfigure a remaining portion of the antennas of the set of antennas to perform a second scan on the radio frequency spectrum band of the second RAT.
    Type: Application
    Filed: August 26, 2016
    Publication date: September 14, 2017
    Inventors: Sandip HomChaudhuri, Gangadhar Burra, Eric Y. Tsou, Chintan Shirish Shah, Francis Ming-Meng Ngai, Alexei Yurievitch Gorokhov, Pattabiraman Subramanian, Ning Zhang, James Simon Cho
  • Patent number: 9749874
    Abstract: Methods, systems, devices, and apparatuses are described for wireless communications in which first type of traffic may be transmitted from a gateway access point (AP) directly to a station. Beacon signals transmitted to the station are transmitted as part of the first type of traffic. A second type of traffic may be transmitted from the gateway AP to the station via at least one relay AP. The first type of traffic may include low-throughput traffic and may be transmitted over a long-range radio link (e.g., 2 GHz band link or sub-1 GHz band link). The second type of traffic may include high-throughput traffic and may be transmitted over at least one short-range radio link (e.g., 5 GHz band link). The gateway AP may receive low-throughput traffic directly from the station and high-throughput traffic from the station via the at least one relay AP.
    Type: Grant
    Filed: July 17, 2013
    Date of Patent: August 29, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Shu Du, Ning Zhang, Zhen Xie, James Simon Cho, Chin-Hung Chen, Kai Shi
  • Patent number: 9722826
    Abstract: Methods, systems, and devices are described for wireless communications. More particularly, the described features relate to techniques for adjusting a modulation and coding scheme (MCS) to account for different airtime utilizations (available airtime actually utilized by a device for transmissions) resulting from different MCSs. In one example, a method for wireless communication may involve: determining a media access control (MAC) efficiency for a station of a plurality of stations based at least in part on a real-time multi-user (MU) physical protocol data unit (PPDU) length, a real-time physical layer service data unit (PSDU) length of each of the plurality of stations, and a modulation and coding scheme (MCS) of the station; adjusting a goodput estimate of the station using the MAC efficiency; and, adjusting the MCS of the station using the adjusted goodput estimate.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: August 1, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Qinghai Gao, Xiaolong Huang, Vincent Knowles Jones, IV, Srinivas Katar, James Simon Cho
  • Publication number: 20170188191
    Abstract: Disclosed herein are techniques for range measurement between one or more wireless stations (STAs) and a first access point (AP). In various embodiments, the first AP may synchronize a clock of the first AP with clocks of one or more synchronized APs. The first AP may perform a synchronization session with the one or more STAs. The first AP may also transmit one or more Broadcast time-of-departure (TOD) frames to the one or more STAs. Each of the one or more Broadcast TOD frames may include a time of departure of a Broadcast TOD frame from the first AP. A second AP and a third AP of the one or more synchronized APs may also transmit one or more Broadcast TOD frames to the one or more STAs for range and/or position determination.
    Type: Application
    Filed: March 24, 2016
    Publication date: June 29, 2017
    Inventors: Carlos Horacio ALDANA, Ning ZHANG, James Simon CHO, Xiaoxin ZHANG
  • Patent number: 9655054
    Abstract: Methods, systems, and devices are described for adapting blind reception duration for range and congestion. A wireless station may measure channel conditions (e.g., range to an access point (AP) and channel congestion), and adjust one or more sleep timers based on the conditions. The sleep timers may each be associated with a window for reception of an expected transmission. If the transmission is not received in the window, the station may enter a sleep state to conserve power. In one example, a beacon miss timer is adjusted, and the expected wireless transmission is a delivery traffic indication message (DTIM). In another example, a content after beacon (CAB) timer is adjusted and the expected wireless transmission is the CAB. In some cases, the station may measure a delay for a number of beacons and determine the adjustment based on the delays.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: May 16, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Sandip HomChaudhuri, Fnu Rajkumar Samuel, Nitin Ashok Changlani, Arunkumar Jayaraman, Pradeep Baliganapalli Nagaraju, Sumeet Kumar, Lian Chen, James Simon Cho
  • Publication number: 20170134989
    Abstract: Methods, systems, and devices are described for supporting simultaneous (e.g., overlapping) data communications by a wireless communication device. More specifically, the described features generally relate to supporting SBS communications by providing mechanisms to help mitigate interference and/or coordinate medium access. One mechanism involves aligning the data communications to mitigate interference. Another mechanism involves using channel reservation signal (e.g., a clear-to-send-to-self (CTS2S) signal) to help maintain simultaneous medium access. Yet another mechanism involves setting a second backoff period for a second channel based at least in part on a first backoff period for a first channel in wireless devices.
    Type: Application
    Filed: November 9, 2015
    Publication date: May 11, 2017
    Inventors: Olaf Josef Hirsch, James Simon Cho, Ning Zhang, Alireza Raissinia, Youhan Kim, Kapil Rai
  • Publication number: 20170118631
    Abstract: Aspects of the present disclosure relate to a pre-fetching architecture and scheduler for multi-station APs. An example method generally includes fetching, from a plurality of host buffers, descriptive information for a set of packets based, at least in part, on an amount of descriptive information already cached for transmission to one or more target devices; using the fetched descriptive information to obtain the set of packets; and transmitting the set of packets to the one or more target devices.
    Type: Application
    Filed: October 22, 2015
    Publication date: April 27, 2017
    Inventors: Chao ZOU, Guido Robert FREDERIKS, Srinivas KATAR, Xiaolong HUANG, Qinghai GAO, Naveen GANGADHARAN, Nathaniel David HOUGHTON, BadriSrinivasan SAMPATHKUMAR, James Simon CHO
  • Publication number: 20170078967
    Abstract: Certain aspects of the present disclosure provide methods and apparatus for polling for data by a wireless device. Certain aspects of the present disclosure providing a method performed by the wireless device. The method generally includes receiving a polling frame from at least one wireless device. The polling frame can include an indication of a service period during which the access point may deliver multiple protocol data units (PDUs) to the wireless device in response to the polling frame. The indication of the service period is provided as a value relative to a local clock synchronized between the wireless device and the access point. The method generally also includes transmitting the multiple PDUs to the wireless device during the service period, in response to the polling frame. The access point can receive the polling frame and transmit the multiple PDUs during the service period, in response to the polling frame.
    Type: Application
    Filed: September 8, 2016
    Publication date: March 16, 2017
    Inventors: Alfred ASTERJADHI, Sandip HOM CHAUDHURI, Zhanfeng JIA, George CHERIAN, Simone MERLIN, Alireza RAISSINIA, Gwendolyn Denise BARRIAC, James Simon CHO, Yan ZHOU, Deepak Jindal KUMAR
  • Publication number: 20170064633
    Abstract: Methods, systems, and devices are described for saving power in wireless communications. One aspect includes providing an indication of a sleep duration for transmission to a wireless node, communicating with the wireless node during a target wakeup time (TWT), wherein the communication comprises at least one of providing data for transmission to the wireless node or obtaining data received from the wireless node, and refraining from providing data for transmission to the wireless node for at least the indicated sleep duration based at least in part on timing of the communication. Another aspect includes receiving an indication of a sleep duration from a wireless node, communicating with the wireless node during a time slot of a TWT, and entering a sleep mode for the indicated sleep duration based at least in part on timing of the communication with the wireless node during the time slot of the TWT.
    Type: Application
    Filed: August 24, 2016
    Publication date: March 2, 2017
    Inventors: Zhanfeng Jia, Alireza Raissinia, Alfred Asterjadhi, James Simon Cho, Sandip HomChaudhuri, Sumeet Kumar, Simone Merlin, Ning Zhang, Ashok Ranganath, Ian O'Donnell, Jason Young, BadriSrinvasan Sampathkumar
  • Patent number: 9578543
    Abstract: Overhead associated with packet communication is reduced by combining or eliminating one or more fields of a packet. In some implementations, a reduction in overhead associated with packets employing security (e.g., IEEE 802.11ah packets) can be achieved by reducing overhead associated with verification-related fields. For example, a packet can include a merged frame check sequence (FCS) and an integrity check value (ICV). In some implementations, an FCS is omitted from a packet.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: February 21, 2017
    Assignee: QUALCOMM INCORPORATED
    Inventors: James Simon Cho, Kevin Neal Hayes
  • Publication number: 20170041869
    Abstract: Systems and methods for wireless communications are disclosed. More particularly, aspects generally relate to an apparatus for wireless communications. The apparatus generally includes an interface for communicating with a plurality of wireless nodes via a plurality of antennas, and a processing system configured to determine a power state of each of the plurality of wireless nodes, and change from a first antenna mode used for communicating with the wireless nodes using a first number of spatial streams to a second antenna mode used for communicating with the wireless nodes using a second number of spatial streams, based on the determined power states of the wireless nodes.
    Type: Application
    Filed: February 23, 2016
    Publication date: February 9, 2017
    Inventors: Sandip HOMCHAUDHURI, Youhan KIM, Srinivas JASTI, Sunghun CHOI, Vikram PHOGAT, Ye YUAN, Umang Sureshbhai PATEL, Lian CHEN, Sumeet KUMAR, James Simon CHO, Sreepathy AIDA, Zhanfeng JIA, Pradeep Kumar Yenganti
  • Patent number: 9565594
    Abstract: Methods, systems, and devices are described for establishing a virtual communication link including at least a first and second physical link between two devices. A single virtual packet queue of a device may receive one or more data packets to be transmitted via the virtual communication link. The single virtual packet queue may attach a virtual sequence number to each of the one or more data packets and send the one or more data packets to one or more of the first or the second physical link according to the assigned virtual sequence numbers. The one or more packets may then be communicated via the first and/or second physical links according to link specific sequence numbers, such as medium access control (MAC) sequence numbers, assigned to the one or more data packets by the first and/or second physical links.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: February 7, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Shu Du, Srinivasa Kumar Duvvuri, James Simon Cho, Vipin Kumar Mehta, Guido Robert Frederiks, Arunkumar Jayaraman, Matthew Daniel Smith
  • Patent number: 9560594
    Abstract: Methods, systems, and devices are described for power conservation in a wireless communications system through efficient transmissions and acknowledgements of information between an AP and a station. The time between a determination by a station to enter a power saving mode and entering network sleep mode by the station may be reduced through a transmission, by an AP, of an MPDU to the station successive to an SIFS after transmission of an acknowledgement to the station of a PS-Poll frame from the station. The time to enter a power saving mode by a station may also be reduced through transmission of A-MPDUs in which a last MPDU of the A-MPDU has an indicator bit cleared to indicate no additional data is to be transmitted. An AP may prevent a retransmission of an MPDU to the station in the absence of an acknowledgement from the station, to further enhance efficiency.
    Type: Grant
    Filed: May 14, 2014
    Date of Patent: January 31, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: James Simon Cho, Arunkumar Jayaraman, Guido Robert Frederiks, Zhanfeng Jia, Shu Du, Alireza Raissinia, Jibing Wang, Sandip Homchaudhuri
  • Publication number: 20160345270
    Abstract: Methods and apparatuses for providing closed-loop power control during a short inter-frame space (SIFS) burst are described herein. A method includes receiving feedback associated with transmit power used to transmit a first data packet in a SIFS burst. The method also includes adjusting at least the transmit power, or a modulation and coding scheme (MCS), or a combination thereof, used to transmit a second data packet of the SIFS burst based at least in part on the received feedback.
    Type: Application
    Filed: May 18, 2015
    Publication date: November 24, 2016
    Inventors: Sandip HomChaudhuri, Sumeet Kumar, James Simon Cho
  • Publication number: 20160330759
    Abstract: Methods, systems, and devices are described for wireless communication. A wireless device may identify an upcoming interference period, determine a receive end time based on when the interference period will begin to disrupt incoming messages, and transmit a scheduling outlook message to a transmitter to schedule around the interference in response to receiving a packet (request-to-send (RTS) or data). The wireless device may hash a receiver address (RA) associated with the packet exchange message such as a clear-to-send message or a block acknowledgement to make room for the scheduling outlook message. An example scheduling outlook field (in the place of the full RA field) may include a shortened RA, a number of supported spatial streams, a supported bandwidth, a set of tone allocation units (TAUs), a receive end time (or receive duration), and an interference level.
    Type: Application
    Filed: May 7, 2015
    Publication date: November 10, 2016
    Inventors: Olaf Josef Hirsch, James Simon Cho, Simone Merlin, Youhan Kim, Guido Robert Frederiks, Jibing Wang
  • Publication number: 20160330640
    Abstract: Systems and methods are provided for preferentially locating a candidate channel likely to have an active network during a WLAN scanning process. A portion of a first incoming packet on a first wireless channel is received and analyzed to determine whether an active network is available on the first wireless channel. The reception of the first incoming packet is selectively aborted based at least in part on the analysis. The portion of the first incoming packet may be a header of the first incoming packet. The reception of the first incoming packet may be aborted in response to a trigger condition. The trigger condition may correspond to a determination that the first incoming packet is not a packet of interest, a determination that the first incoming packet is not a beacon, or a determination that a signal strength on the first incoming packet is below a threshold level.
    Type: Application
    Filed: July 21, 2016
    Publication date: November 10, 2016
    Inventors: Kai Shi, James Simon Cho, Ning Zhang