Patents by Inventor Paul J. Stager

Paul J. Stager 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: 20200136657
    Abstract: A wireless communication device is built from a base module and a plurality of front-end modules. Each of the plurality of front-end modules is configured to operate a different one of a plurality of radio frequency services and having a front-end module connector configured to removeably mate with a base module connector of the base module. A particular front-end module is connected to the base module. Upon connection of said particular front-end module to the base module connector, the base module reads information from a memory of said particular front-end module to determine the radio service that the particular front-end module is configured to operate and to supply the control signals to configure and control front-end circuitry of the front-end module to operate the radio service.
    Type: Application
    Filed: October 26, 2018
    Publication date: April 30, 2020
    Inventors: Fred J. Anderson, Paul J. Stager, John M. Blosco, Qing Zhao, David Kloper
  • Patent number: 10601475
    Abstract: A wireless access point device wirelessly communicates with a plurality of wireless client devices. The wireless access point includes a central processor subsystem and a plurality of transceiver devices each including a plurality of antennas, and a plurality of radio transceivers, each of the plurality of transceiver devices configured for deployment throughout a coverage area, each transceiver device being connected to the central processor subsystem via a respective cable. The central processor subsystem distributes in-phase and quadrature baseband samples across the plurality of transceiver devices associated with traffic to be transmitted and received via the plurality of transceiver devices in one or more frequency bands so as to synthesize a wideband multiple-input multiple-output transmission channel and a wideband multiple-input multiple-output reception channel. The access point transmit and receive functions are “split” or partitioned across the plurality of transceivers devices.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: March 24, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: Brian D. Hart, Paul J. Stager, David Kloper, Jie Cheng Jiang
  • Patent number: 10455439
    Abstract: The present disclosure discloses a central controller controlling multiple radio heads (RHs) in a network. The central controller generates network information for the radio heads based on a probe request transmitted from a network device and received by one or more of the radio heads. The central controller calculates a respective metric value for each of the radio heads based on the network information. The metric value indicates a capability of a radio head to serve the network device. The central controller selects a subset of radio heads from the multiple radio heads to send a probe response to the network device based on the metric values.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: October 22, 2019
    Assignee: Cisco Technology, Inc.
    Inventors: David S. Kloper, Matthew A. Silverman, Paul J. Stager
  • Publication number: 20190280380
    Abstract: An apparatus comprises an antenna array, a block of switches, a programmable logic device and a memory device. The antenna array comprises a plurality of antenna elements. The block of switches is configured to selectively connect respective ones of a subset of the plurality of antenna elements to corresponding ones of a plurality of transceivers in a host device. The programmable logic device is configured to communicate with the host device and to control the block of switches. The memory device is coupled to the programmable logic device, and is configured to store information allowing the host device to determine how to control connectivity of individual antenna elements to respective ones of the plurality of transceivers of the host device as part of transmit and/or receive operations of the host device.
    Type: Application
    Filed: May 23, 2019
    Publication date: September 12, 2019
    Inventors: Stephen J. McCarthy, Matthew A. Silverman, Paul J. Stager
  • Publication number: 20190265367
    Abstract: A method for adjusting an installation orientation of an access point within a predefined area with an associated orientation is disclosed. The method includes obtaining, at a computing apparatus, angle of arrival estimates from each access point based on a wireless transmission from a wireless mobile device. The computing device generates an estimated location of the wireless mobile device based on the angle of arrival estimates. Next, the computing device determines an orientation error for each wireless access point based on the angle of arrival estimate of the wireless mobile device and the estimated location of the wireless mobile device. The computing device generates an adjusted orientation of one or more of the access points based on the orientation error of the access point, thereby aligning the adjusted orientation with the orientation of the predefined area.
    Type: Application
    Filed: February 26, 2018
    Publication date: August 29, 2019
    Inventors: Matthew A. Silverman, Paul J. Stager, Santosh G. Pandey
  • Publication number: 20190242970
    Abstract: Techniques are presented herein for computing angle-of-arrival estimates while switching antenna states during a packet unit for the general Orthogonal Frequency Division Multiple Access (OFMDA) case (including a single user). A wireless device computes channel estimates throughout the entire frame and not only during the training symbols. Consequently, the wireless device computes channel estimates for all antennas in its array within a single frame instead of having to wait for multiple frames.
    Type: Application
    Filed: April 22, 2019
    Publication date: August 8, 2019
    Inventors: Matthew A. Silverman, Oscar Bejarano Chavez, Paul J. Stager, David Kloper
  • Publication number: 20190246368
    Abstract: Techniques are disclosed to synchronize wireless signal transmission by endpoints controlled by a central controller. For example, an example method of wireless communication includes receiving, at a first device, over a wired medium between the first device and a second device, a plurality of packets from the second device. Each of the plurality of packets comprises data representative of a portion of a signal corresponding to a wireless medium. The method further includes receiving, at the first device, from the second device over the wired medium a synchronization signal based on a common master clock at the second device. The method further includes synchronizing, at the first device, a local clock of the first device to the common master clock based on the synchronization signal. The method further includes reconstructing the signal corresponding to the wireless medium based on the plurality of packets and the synchronized local clock.
    Type: Application
    Filed: April 18, 2019
    Publication date: August 8, 2019
    Inventors: Paul J. STAGER, David S. KLOPER, Brian D. HART, Matthew A. SILVERMAN
  • Publication number: 20190245593
    Abstract: A wireless access point device wirelessly communicates with a plurality of wireless client devices. The wireless access point includes a central processor subsystem and a plurality of transceiver devices each including a plurality of antennas, and a plurality of radio transceivers, each of the plurality of transceiver devices configured for deployment throughout a coverage area, each transceiver device being connected to the central processor subsystem via a respective cable. The central processor subsystem distributes in-phase and quadrature baseband samples across the plurality of transceiver devices associated with traffic to be transmitted and received via the plurality of transceiver devices in one or more frequency bands so as to synthesize a wideband multiple-input multiple-output transmission channel and a wideband multiple-input multiple-output reception channel. The access point transmit and receive functions are “split” or partitioned across the plurality of transceivers devices.
    Type: Application
    Filed: April 15, 2019
    Publication date: August 8, 2019
    Inventors: Brian D. Hart, Paul J. Stager, David Kloper, Jie Cheng Jiang
  • Patent number: 10362538
    Abstract: Techniques are disclosed for generating 802.11 packets that simulate an 802.11ba Wake-Up Radio (WUR) packet by wireless access points (APs) that implement pre-802.11ba standards. According to one embodiment disclosed herein, a predefined bit stream including a plurality of data bits is evaluated. A data bit of the plurality is mapped to one of a plurality of subcarriers. A symbol is encoded in a data payload of a network packet based on the mapping of the data bit to the subcarrier. The symbol simulates an on-off key (OOK)-modulated symbol in a WUR sequence. The network packet is transmitted to a client device.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: July 23, 2019
    Assignee: Cisco Technology, Inc.
    Inventors: Zhigang Gao, Paul J. Stager, Fred J. Anderson
  • Patent number: 10361482
    Abstract: An apparatus comprises an antenna array, a block of switches, a programmable logic device and a memory device. The antenna array comprises a plurality of antenna elements. The block of switches is configured to selectively connect respective ones of a subset of the plurality of antenna elements to corresponding ones of a plurality of transceivers in a host device. The programmable logic device is configured to communicate with the host device and to control the block of switches. The memory device is coupled to the programmable logic device, and is configured to store information allowing the host device to determine how to control connectivity of individual antenna elements to respective ones of the plurality of transceivers of the host device as part of transmit and/or receive operations of the host device.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: July 23, 2019
    Assignee: Cisco Technology, Inc.
    Inventors: Stephen J. McCarthy, Matthew A. Silverman, Paul J. Stager
  • Patent number: 10340975
    Abstract: Receiving filter design that reduces out-of-channel interference for APs is disclosed. An AP includes a first radio and a second radio disposed in a body of the AP. The first radio transmits first signals in a frequency band while the second radio receives second signals in the same frequency band. The AP includes an interference mitigation controller that determines a receiving filter for the second radio to mitigate interference between the first radio and the second radio based on the second signals received by the second radio when the first radio transmits the first signals in the frequency band. The interference mitigation controller applies the receiving filter to signals received by the second radio during a time period that the first radio is transmitting signals in the frequency band while the second radio is receiving signals in the frequency band.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: July 2, 2019
    Assignee: Cisco Technology, Inc.
    Inventors: Matthew A. Silverman, Paul J. Stager, John Blosco, Corey D. Metsker
  • Patent number: 10330770
    Abstract: Techniques are presented herein for computing angle-of-arrival estimates while switching antenna states during a packet unit for the general Orthogonal Frequency Division Multiple Access (OFMDA) case (including a single user). A wireless device computes channel estimates throughout the entire frame and not only during the training symbols. Consequently, the wireless device computes channel estimates for all antennas in its array within a single frame instead of having to wait for multiple frames.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: June 25, 2019
    Assignee: Cisco Technology, Inc.
    Inventors: Matthew A. Silverman, Oscar Bejarano Chavez, Paul J. Stager, David Kloper
  • Patent number: 10312979
    Abstract: A wireless access point device wirelessly communicates with a plurality of wireless client devices. The wireless access point includes a central processor subsystem and a plurality of transceiver devices each including a plurality of antennas, and a plurality of radio transceivers, each of the plurality of transceiver devices configured for deployment throughout a coverage area, each transceiver device being connected to the central processor subsystem via a respective cable. The central processor subsystem distributes in-phase and quadrature baseband samples across the plurality of transceiver devices associated with traffic to be transmitted and received via the plurality of transceiver devices in one or more frequency bands so as to synthesize a wideband multiple-input multiple-output transmission channel and a wideband multiple-input multiple-output reception channel. The access point transmit and receive functions are “split” or partitioned across the plurality of transceivers devices.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: June 4, 2019
    Assignee: Cisco Technology, Inc.
    Inventors: Brian D. Hart, Paul J. Stager, David Kloper, Jie Cheng Jiang
  • Patent number: 10306675
    Abstract: A central processor subsystem controls multiple transceivers. Each transceiver transmits protocol data units from antennas of that transceiver and produces receive waveforms from wirelessly received signals at the one or more antennas. A transmit waveform, including a frame addressed to one or more wireless client devices, is sent through a first transceiver to be transmitted wirelessly by the first transceiver on a frequency channel. A receive waveform, representative of the transmission by the first transceiver and wirelessly received at a second transceiver, is received from the second transceiver. While the transmit waveform is being sent to the first transceiver: a level of collision between the receive waveform and another transmission on the frequency channel is detected; and if the level of collision exceeds a threshold prior to an end of the receive waveform, the transmit waveform being sent to the first transceiver is modified to reduce the collision.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: May 28, 2019
    Assignee: Cisco Technology, Inc.
    Inventors: David Kloper, Brian D. Hart, Matthew A. Silverman, Paul J. Stager
  • Publication number: 20190137596
    Abstract: Techniques are presented herein for computing angle-of-arrival estimates while switching antenna states during a packet unit for the general Orthogonal Frequency Division Multiple Access (OFMDA) case (including a single user). A wireless device computes channel estimates throughout the entire frame and not only during the training symbols. Consequently, the wireless device computes channel estimates for all antennas in its array within a single frame instead of having to wait for multiple frames.
    Type: Application
    Filed: November 9, 2017
    Publication date: May 9, 2019
    Inventors: Matthew A. Silverman, Oscar Bejarano Chavez, Paul J. Stager, David Kloper
  • Patent number: 10285148
    Abstract: Techniques are disclosed to synchronize wireless signal transmission by endpoints controlled by a central controller. For example, an example method of wireless communication includes receiving, at a first device, over a wired medium between the first device and a second device, a plurality of packets from the second device. Each of the plurality of packets comprises data representative of a portion of a signal corresponding to a wireless medium. The method further includes receiving, at the first device, from the second device over the wired medium a synchronization signal based on a common master clock at the second device. The method further includes synchronizing, at the first device, a local clock of the first device to the common master clock based on the synchronization signal. The method further includes reconstructing the signal corresponding to the wireless medium based on the plurality of packets and the synchronized local clock.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: May 7, 2019
    Assignee: Cisco Technology, Inc.
    Inventors: Paul J. Stager, David S. Kloper, Brian D. Hart, Matthew A. Silverman
  • Patent number: 10278155
    Abstract: A plurality of first wireless devices monitor a ranging exchange of transmissions between a target wireless device and a second wireless device in order to record for each of the plurality of first wireless devices a time of reception of a first transmission that is sent from the second wireless device to the target wireless device and a time of reception of a second transmission that is sent from the target wireless device to the second wireless device. Using a timing error computed from the estimated location, a modification is made of the time of transmission of the first transmission to produce a first modified timestamp and of the time of reception of the second transmission to produce a second modified timestamp. A ranging measurement is computed of the target wireless device relative to the second wireless device using the first modified timestamp and the second modified timestamp.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: April 30, 2019
    Assignee: Cisco Technology, Inc.
    Inventors: Matthew A. Silverman, Zhigang Gao, John Matthew Swartz, Paul J. Stager
  • Patent number: 10277384
    Abstract: Embodiments herein describe using an intermediate distribution frame (IDF) which is connected between a central controller and a plurality radio heads which each include at least one antenna for wireless communication with a user device. Instead of running separate cables to each of the radio heads, a single cable can be used to connect the IDF to the central controller and then separate cables can be used to connect the IDF to the radio heads. If the IDF is disposed near the radio heads, the amount of cables can be reduced. Moreover, the IDF may recover a clock signal used by the central controller and forward that clock to the plurality of radio head in order to synchronize the radio heads to the central controller.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: April 30, 2019
    Assignee: Cisco Technology, Inc.
    Inventors: David S. Kloper, Brian D. Hart, Paul J. Stager
  • Patent number: 10243665
    Abstract: Presented herein are techniques to ensure power emitted by APs during a cooperative MIMO transmission is within certain limits. For a transmission to be made from two or more wireless access points using cooperative multiple-input multiple-output (MIMO) techniques, a measure of separation is determined between the two or more access points. Precoding of signals to be transmitted by the two or more access points is adjusted so as to derate the signals to be transmitted or disable the cooperative nature of the transmission from the two or more access point depending on the measure of separation so that a combined output power from the two or more access points is within a limit.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: March 26, 2019
    Assignee: Cisco Technology, Inc.
    Inventors: Fred J. Anderson, Oscar Bejarano Chavez, Matthew A. Silverman, Paul J. Stager
  • Publication number: 20190068289
    Abstract: Presented herein are techniques to ensure power emitted by APs during a cooperative MIMO transmission is within certain limits. For a transmission to be made from two or more wireless access points using cooperative multiple-input multiple-output (MIMO) techniques, a measure of separation is determined between the two or more access points. Precoding of signals to be transmitted by the two or more access points is adjusted so as to derate the signals to be transmitted or disable the cooperative nature of the transmission from the two or more access point depending on the measure of separation so that a combined output power from the two or more access points is within a limit.
    Type: Application
    Filed: October 2, 2017
    Publication date: February 28, 2019
    Inventors: Fred J. Anderson, Oscar Bejarano Chavez, Matthew A. Silverman, Paul J. Stager