Patents by Inventor Adrian P. Stephens

Adrian P. Stephens 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: 8982859
    Abstract: Embodiments of a wireless communication device and method for short frame indication in an IEEE 802.11ah network are generally described herein. In some embodiments, a reserved bit in a service field is used to indicate whether a frame is using a short MAC header or a regular MAC header.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: March 17, 2015
    Assignee: Intel Corporation
    Inventors: Minyoung Park, Adrian P Stephens, Emily H. Qi
  • Patent number: 8976808
    Abstract: A wireless local area network (WLAN) device transmits a header over an air interface, at a first modulation rate. The header may include an indication of a second modulation rate that will be used to transmit a consolidated payload. The device further transmits the consolidated payload at the second modulation rate. The consolidated payload includes multiple data units. In one embodiment, the consolidated payload includes delimiters with validation fields associated with the various data units.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: March 10, 2015
    Inventors: Adrian P. Stephens, Duncan Kitchin
  • Patent number: 8971351
    Abstract: In various embodiments, a multi-channel request-to-send and a multi-channel clear-to-send may be used in a wireless communications network to assure that a subsequent multi-channel communications exchange between two devices takes place only over channels that are sensed by both devices as being free.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: March 3, 2015
    Assignee: Intel Corporation
    Inventors: Michelle X. Gong, Adrian P. Stephens
  • Patent number: 8948139
    Abstract: An access point in a wireless network communicates with multiple mobile stations simultaneously using spatial-division multiple access.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: February 3, 2015
    Assignee: Intel Corporation
    Inventors: Qinghua Li, Minnie Ho, Adrian P. Stephens
  • Publication number: 20140369303
    Abstract: Embodiments of systems and methods for providing collision detection in a wider bandwidth are generally described herein. Other embodiments may be described and claimed.
    Type: Application
    Filed: August 29, 2014
    Publication date: December 18, 2014
    Inventors: Michelle X. Gong, Robert J. Stacey, Adrian P. Stephens
  • Patent number: 8885530
    Abstract: A method and system may transmit during a traffic indication window, such as an ATIM window, a frame indicating a power management mode and may then transition to the power management mode, possibly before the end of the traffic indication window. Another method and system may receive or transmit during a beacon interval an indicator of a desire to enter a sleep state, then transmit or receive an indicator of a desire to enter the sleep state, and then enter the sleep state prior to the end of the beacon interval. Other embodiments are described and claimed.
    Type: Grant
    Filed: December 24, 2009
    Date of Patent: November 11, 2014
    Assignee: Intel Corporation
    Inventors: Michelle Gong, Adrian P. Stephens
  • Publication number: 20140328167
    Abstract: A base station may poll multiple mobile devices with the same multicast poll, and the polled mobile stations may respond separately at different times based on an assigned delay period for each mobile station that was specified in the poll message.
    Type: Application
    Filed: March 20, 2014
    Publication date: November 6, 2014
    Inventor: Adrian P. Stephens
  • Publication number: 20140269670
    Abstract: Embodiments of a user station (STA) and methods for synchronizing with devices in a wireless communication network are generally described herein. In some embodiments, a STA receives a first beacon from a device in the first social network. The STA may synchronize to the first social network based on time synchronization information in the first beacon. The STA may transmit the time synchronization information of the first beacon to a second social network. A portion of a coverage area of the second social network may be outside a coverage area of the first social network.
    Type: Application
    Filed: June 26, 2013
    Publication date: September 18, 2014
    Inventors: Minyoung Park, Emily H. Qi, Oren Kaidar, Adrian P Stephens
  • Publication number: 20140269549
    Abstract: Embodiments of a communication station (STA) and method for time-of-flight (ToF) positioning in a wireless network are generally described herein. In some embodiments, an initiating station may transmit a message M1 carrying a high-throughput control (HTC) field that includes a reverse direction grant (RDG) bit. The RDG indication grants permission to a responding station to send information back to the initiating station. The message M1 may be a timing measurement action frame. An ACK frame may be received from the responding station to acknowledge receipt of the message M1. The ACK frame may optionally carry an HTC field that includes a more PPDU indication to indicate whether a PPDU (e.g., contained in message M2) is to follow the ACK frame. The message M2 may be received from the responding station and may include timing measurement information from a current and/or one or more previous ToF message exchanges.
    Type: Application
    Filed: June 28, 2013
    Publication date: September 18, 2014
    Inventors: Adrian P. Stephens, Yuval Amizur, Jonathan Segev
  • Publication number: 20140254469
    Abstract: Embodiments of a wireless station to operate as a per-symbol relay device and method for retransmission of symbols between client devices and a master device using millimeter-wave links is generally disclosed herein. In some embodiments, the relay device may receive one or more of independent symbol streams from the master device. Each independent symbol stream may comprise packets that include groups of one or more symbols. Each group within a packet may be destined for a different one of the client devices. The relay device may separately decode each symbol or group of symbols to generate an independent stream of symbols for retransmission to the client devices using beamforming. The relay device may be arranged to receive, decode, and retransmit each symbol or group of symbols within a delay that is bounded by the number of symbols in the group.
    Type: Application
    Filed: March 11, 2013
    Publication date: September 11, 2014
    Inventors: Adrian P. Stephens, Carlos Cordeiro, Thomas J. Kenney
  • Patent number: 8824582
    Abstract: A base station is arranged for performing channel coding and link adaptation. The base station comprises one or more processors and physical layer circuitry arranged to decode symbols received from a user station to determine an error rate, the symbols received through a plurality of antennas, receive signaling from the user station, the signaling including channel quality information for channel resources of an orthogonal frequency division multiplexed (OFDM) channel, select a modulation and coding rate for transmission of symbols to the user station based at least in part on the error rate, and transmit a transmit power control command to the user station, the transmit power control command based at least in part on a downlink path loss estimate. The base station may also transmit additional transmit power control commands to the user station based on the error rate of subsequently decoded symbols.
    Type: Grant
    Filed: November 19, 2012
    Date of Patent: September 2, 2014
    Assignee: Intel Corporation
    Inventors: Eric A. Jacobsen, Adrian P. Stephens
  • Publication number: 20140198783
    Abstract: Logic to “loosely” manage synch frame transmissions in a synch network via the devices synced to the network that implement the logic. Logic may distributedly adjust the frequency of attempting synch frame transmissions without estimating the size of the neighborhood. Logic in devices of a synch network to let each device maintain a Transmission Window (TW). Logic to determine the frequency of attempting synch frame transmissions based upon the TW. Logic to increase TW if the device detects a synch frame transmission. Logic to decrease TW if the device successfully transmits a synch frame. Logic to balance power consumption and discovery timing by adjusting the decrease in TW responsive to a synch transmission in relation to the increase in TW responsive to detection of a synch transmitted by another device.
    Type: Application
    Filed: June 29, 2013
    Publication date: July 17, 2014
    Inventors: Emily H. Qi, Po-Kai Huang, Minyoung Park, Adrian P. Stephens
  • Publication number: 20140198723
    Abstract: Systems and methods for implementing a medium access group assignment of stations (STAs) are disclosed. An access point (AP) device may be configured to allocate a chosen beacon interval to a medium access group (MAG). Further, the AP device may assign STAs to different MAGs. After assignment to a particular MAG, the STAs that are associated to the particular MAG may use the configured beacon interval during transmission and reception of messages.
    Type: Application
    Filed: October 1, 2011
    Publication date: July 17, 2014
    Inventors: Michelle X. Gong, Adrian P. Stephens
  • Patent number: 8780824
    Abstract: Embodiments of a high-throughput (HT) communication station (STA) and method for communicating over a primary and a secondary channel are generally described herein. In some embodiments, the high-throughput (HT) communication station (STA) comprises a physical layer (PHY) and a media-access control (MAC) layer to provide a data unit to the physical layer. The PHY layer may be configured to transmit a packet that includes the data unit over a channel bandwidth comprising a first channel and an additional channel in accordance with an OFDM communication technique. The packet may have a frame structure that includes a channel bandwidth parameter to indicate the channel bandwidth used, a modulation and coding parameter to indicate a modulation and coding scheme of the packet as transmitted over the channel bandwidth.
    Type: Grant
    Filed: November 1, 2010
    Date of Patent: July 15, 2014
    Assignee: Intel Corporation
    Inventors: Alexander A. Maltsev, Ali S Sadri, Vadim S Sergeyev, Adrian P Stephens
  • Publication number: 20140192714
    Abstract: Disclosed is a tunneling mechanism that enables frames generated by a MAC layer management entity (MLME) to be transmitted by another. By doing that, a pair of stations (STAs) can perform functions such as (re)association, authentication, and the like, without having to transmit frames over-the-air but, instead, use a different MLME for this purpose. This enables the station management entities (SMEs) of a pair of multi-band capable STAs to provide a seamless fast session transfer (FST), including the provisioning of multi-band (de)authentication and (re)association.
    Type: Application
    Filed: December 14, 2011
    Publication date: July 10, 2014
    Inventors: Carlos Cordeiro, Adrian P. Stephens
  • Publication number: 20140192713
    Abstract: Embodiments provide a new short beacon frame format and its operation with full beacon frame transmissions for wireless communications devices. Many embodiments comprise a medium access control (MAC) sublayer logic to build frames comprising the short beacon frame for a first communications device. In some embodiments, the MAC sublayer may determine a frame control field comprising a type field indicative of an extension frame and a subtype indicative of a short beacon. In further embodiments, the frame control field may comprise a service set identifier (SSID) control field, and a reserved field. Some embodiments may store the short beacon frame or frame format in memory, in logic, or in another manner that facilitates transmission of the short beacon frames. Some embodiments may receive and detect communications with the short beacon frames. Further embodiments may generate and transmit a communication with the short beacon frames.
    Type: Application
    Filed: December 31, 2011
    Publication date: July 10, 2014
    Inventors: Minyoung Park, Adrian P. Stephens, Thomas J. Kenney, Emily H. Qi
  • Publication number: 20140192820
    Abstract: Logic for collision mitigation between transmissions of wireless transmitters and receivers operating at different bandwidths. Logic of the receivers may be capable of receiving and detecting signals transmitted at narrower bandwidths. In several embodiments, the receivers comprise a clear channel assessment logic that implements a guard interval (or cyclic prefix) detector to detect transmissions at narrower bandwidths. For instance, a two MegaHertz (MHz) bandwidth receiver may implement a guard interval detector to detect 1 MHz bandwidth signals and a 16M Hz bandwidth receiver may implement logic to detect one or more 1 MHz bandwidth signals and any other combination of, e.g., 1, 2, 4, 8 MHz bandwidth signals. In many embodiments, the guard interval detector may be implemented to detect guard intervals on a channel designated as a primary channel as well as on one or more non-primary channels.
    Type: Application
    Filed: June 29, 2013
    Publication date: July 10, 2014
    Inventors: Shahrnaz Azizi, Adrian P. Stephens, Thomas J. Kenney, Eldad Perahia, Minyoung Park
  • Patent number: 8774088
    Abstract: In a network that contains both new devices capable of using wide channels and legacy devices that can only use narrow channels, the network controller may define which devices are to use which narrow channels for concurrently transmitting uplink acknowledgements. Further, the network controller may schedule the devices to respond in groups based on the received signal strength of their transmissions at the network controller.
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: July 8, 2014
    Assignee: Intel Corporation
    Inventors: Michelle X Gong, Eldad Perahia, Adrian P Stephens
  • Publication number: 20140185535
    Abstract: Logic may comprise hardware and/or code to coordinate communications of wireless communications devices. Logic coordinate communications in an access point by implementing adaptive delays. Logic may determine a delay for stations awaking from a doze state during which the station should perform clear channel assessment prior to transmitting packets on a channel. Logic may collect information about devices and/or communications within a basic service set (BSS) such as the statistics of the received packets length in time, the type of stations in the network, and/or other information available. Based upon the information collected, the logic may determine a delay and transmit the delay to devices in the BSS. Logic may receive and update the delay in memory and then implement the delay after switching to an awake state from a doze state.
    Type: Application
    Filed: December 29, 2012
    Publication date: July 3, 2014
    Inventors: Minyoung Park, Adrian P. Stephens, Thomas A. Tetzlaff, Emily H. Qi
  • Patent number: 8761065
    Abstract: An embodiment of the present invention provides a method of wakeup signaling for a very low power wireless local area network device (WLAN) device, comprising transmitting by an access point operable in the WLAN of a wake-up signal that can be received using low-power techniques at a receiver associated with the device.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: June 24, 2014
    Assignee: Intel Corporation
    Inventors: Adrian P. Stephens, Eldad Perahia