Patents by Inventor Louay Jalloul

Louay Jalloul 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: 20220052732
    Abstract: This disclosure relates to techniques for a wireless device to perform channel state information reporting. The wireless device may receive channel state information reporting configuration information. The channel state information reporting configuration information may include an indication to use a wideband precoding matrix indicator format for 3GPP release 16 type II channel state information reporting. The wireless device may perform channel state information reporting using a different reporting configuration than 3GPP release 16 type II channel state information reporting using a wideband precoding matrix indicator format based at least in part on the channel state information reporting configuration information. The wireless device may also or alternatively perform 3GPP type I channel state information reporting using a unified spatial basis selection framework for rank indicators of 3 and 4 for any number of channel state information reference signal ports.
    Type: Application
    Filed: February 12, 2020
    Publication date: February 17, 2022
    Inventors: Haitong Sun, Yushu Zhang, Wei Zeng, Dawei Zhang, Ghaith N. Hattab, Ismael Gutierrez Gonzalez, Anchit Malhotra, Louay Jalloul, David Neumann, Ziyang Ju
  • Patent number: 11057098
    Abstract: A multiple input multiple output (MIMO) antenna system is implemented for communications in a wireless device. Information regarding the environment surrounding the wireless device may be used to determine which of the MIMO antennas are selected such that communications performance is improved. Metrics related to signal transmission and reception by the wireless device may be monitored and used to determine which MIMO antennas are selected. The metrics may be measured by any of the MIMO antennas at any time, including antennas currently engaged or not engaged in active communications. The metrics may be used in lieu of sensors to supplement or replace wireless device functionality otherwise provided by the sensors.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: July 6, 2021
    Assignee: Avago Technologies International Sales Pte. Limited
    Inventors: Amin Mobasher, Sam Alex, Louay Jalloul
  • Publication number: 20210067383
    Abstract: Methods, systems, and devices for wireless communication are described. In some systems (e.g., Wi-Fi systems), a transmitting device such as an access point (AP) or mobile station (STA), may identify a number of spatial streams for a data transmission that is less than a number of transmit antennas, and may transmit a packet over a channel. In a first implementation, the packet may be formatted in a multi-user frame format, with a number of long training field (LTF) symbols equal to the number of transmit antennas. In a second implementation, the packet may be a null data packet (NDP), and the device may transmit a separate data packet. In a third implementation, the packet may be formatted in single-user frame format with a modified LTF. A receiving device may receive the packet, and may perform channel estimation and power amplifier (PA) distortion cancellation based on the received packet.
    Type: Application
    Filed: November 13, 2020
    Publication date: March 4, 2021
    Inventors: Lin Yang, Bin Tian, Jialing Li Chen, Louay Jalloul, Vincent Knowles Jones, IV, Ning Zhang, Chi-Lin Su, Ahmad Abdulrahman Mohammed
  • Patent number: 10873482
    Abstract: Methods, systems, and devices for wireless communication are described. In some systems (e.g., Wi-Fi systems), a transmitting device such as an access point (AP) or mobile station (STA), may identify a number of spatial streams for a data transmission that is less than a number of transmit antennas, and may transmit a packet over a channel. In a first implementation, the packet may be formatted in a multi-user frame format, with a number of long training field (LTF) symbols equal to the number of transmit antennas. In a second implementation, the packet may be a null data packet (NDP), and the device may transmit a separate data packet. In a third implementation, the packet may be formatted in single-user frame format with a modified LTF. A receiving device may receive the packet, and may perform channel estimation and power amplifier (PA) distortion cancellation based on the received packet.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: December 22, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Lin Yang, Bin Tian, Jialing Li Chen, Louay Jalloul, Vincent Knowles Jones, IV, Ning Zhang, Chi-Lin Su, Ahmad Abdulrahman Mohammed
  • Patent number: 10790930
    Abstract: Apparatuses and methods for correcting a distorted signal at a receiver device during wireless local area network (WLAN) communications are disclosed. The apparatuses and methods include receiving, by a receiver device in a WLAN, a distorted signal corresponding to a data packet signal transmitted from a transmitter device, receiving, by the receiver device, one or more transmitter parameters corresponding to the transmission of the data packet signal, the one or more transmitter parameters including information to adjust the distorted signal, and adjusting, by the receiver device, the distorted signal to reconstruct the data packet signal based at least on the one or more transmitter parameters.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: September 29, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Jialing Li Chen, Lin Yang, Bin Tian, Ning Zhang, Vincent Knowles Jones, IV, Didier Johannes Richard Van Nee, Louay Jalloul, Ahmad Abdulrahman Mohammed
  • Publication number: 20200305124
    Abstract: A system and method are disclosed that may allow for enhanced gain control for two radios. In an example method, a first radio may receive a wireless signal on a first frequency band, the wireless signal including at least a header and a payload. A first gain control operation may be performed based at least in part on information in the header of the wireless signal. A second radio may be determined to initiate a transmission on a second frequency coinciding with the first frequency band before reception of the wireless signal is completed, where the second radio is co-located with the first radio. A second gain control operation may be performed based at least in part on an expected interference associated with the transmission from the second radio, and one or more gain levels may be adjusted for reception of the wireless signal, based on the second gain control operation.
    Type: Application
    Filed: March 20, 2019
    Publication date: September 24, 2020
    Inventors: Shi-Cong Yang, Louay Jalloul, Olaf Josef Hirsch, Tianqi Wang, Qinfang Sun
  • Publication number: 20200274592
    Abstract: This disclosure provides methods, devices and systems for obtaining and providing channel feedback. In some implementations, a beamformee provides channel feedback to a beamformer that enables the beamformer to construct and independently precode two or more different sets of spatial streams for transmission to the beamformee. The independent precoding of the different sets of spatial streams ensures that the decodings of the different sets of spatial streams may be decoupled from one another at the beamformee. To provide the channel feedback, the beamformee partitions a channel estimate into two or more sub-estimates prior to performing a channel decomposition. In some implementations, the beamformee determines null-space-based projections of the sub-estimates before performing the channel decomposition.
    Type: Application
    Filed: February 5, 2020
    Publication date: August 27, 2020
    Inventors: Yashwanth MANDULA, Gopala Krishna Murthy VEMULA, Suresh CHANDRASEKARAN, Ashutosh Deepak GORE, Swaroop VENKATESH, Louay JALLOUL, Ahmad Abdulrahman MOHAMMED, Yen-Feng LEE, Pedram PAYSARVI HOSEINI, Chi-Lin SU, Youhan KIM
  • Publication number: 20190379434
    Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for detecting motion using wireless local area network (WLAN) communications. A first WLAN device having multiple antennas (radios) may determine a metric based on differences in spatial signal processing characteristics between the multiple antennas. By comparing changes in the metric over a plurality of wireless signals over time, the first WLAN device may detect motion in the environment near the first WLAN device. The spatial signal processing characteristics may be based on received WLAN communications from a second WLAN device, based on beamforming feedback from the second WLAN device, or based on wireless signal reflections detected by the first WLAN device. Various techniques may be used to adjust or mitigate random phase differences between two antennas on some tones. Motion detection based on WLAN communications may trigger activities or notifications by the first WLAN device.
    Type: Application
    Filed: June 5, 2019
    Publication date: December 12, 2019
    Inventors: Erik David Lindskog, Xiaoxin Zhang, Youhan Kim, Louay Jalloul, Kurt Erwin Landenberger, Youngsin Lee, Srinivasarao Kode, Manishekar Chandrasekaran
  • Publication number: 20190273551
    Abstract: A multiple input multiple output (MIMO) antenna system is implemented for communications in a wireless device. Information regarding the environment surrounding the wireless device may be used to determine which of the MIMO antennas are selected such that communications performance is improved. Metrics related to signal transmission and reception by the wireless device may be monitored and used to determine which MIMO antennas are selected. The metrics may be measured by any of the MIMO antennas at any time, including antennas currently engaged or not engaged in active communications. The metrics may be used in lieu of sensors to supplement or replace wireless device functionality otherwise provided by the sensors.
    Type: Application
    Filed: May 21, 2019
    Publication date: September 5, 2019
    Applicant: Avago Technologies International Sales Pte. Limited
    Inventors: Amin MOBASHER, Sam ALEX, Louay JALLOUL
  • Patent number: 10326513
    Abstract: A multiple input multiple output (MIMO) antenna system is implemented for communications in a wireless device. Information regarding the environment surrounding the wireless device may be used to determine which of the MIMO antennas are selected such that communications performance is improved. Metrics related to signal transmission and reception by the wireless device may be monitored and used to determine which MIMO antennas are selected. The metrics may be measured by any of the MIMO antennas at any time, including antennas currently engaged or not engaged in active communications. The metrics may be used in lieu of sensors to supplement or replace wireless device functionality otherwise provided by the sensors.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: June 18, 2019
    Assignee: Avago Technologies International Sales Pte. Limited
    Inventors: Amin Mobasher, Sam Alex, Louay Jalloul
  • Publication number: 20190149362
    Abstract: Systems and methods are disclosed that may detect data transmitted using MIMO communications. MIMO signals may be received via a wireless channel. Channel conditions may be estimated for the wireless channel based at least in part on the received MIMO signals. Each tone of the received MIMO signals may then be processed according to either a first receiver algorithm or a second receiver algorithm based at least in part on the estimated channel conditions, where the second receiver algorithm has a greater complexity and a greater accuracy than the first receiver algorithm.
    Type: Application
    Filed: November 14, 2017
    Publication date: May 16, 2019
    Inventors: Louay Jalloul, Ahmad Abdulrahman Mohammed
  • Publication number: 20190116068
    Abstract: Methods, systems, and devices for wireless communication are described. In some systems (e.g., Wi-Fi systems), a transmitting device such as an access point (AP) or mobile station (STA), may identify a number of spatial streams for a data transmission that is less than a number of transmit antennas, and may transmit a packet over a channel. In a first implementation, the packet may be formatted in a multi-user frame format, with a number of long training field (LTF) symbols equal to the number of transmit antennas. In a second implementation, the packet may be a null data packet (NDP), and the device may transmit a separate data packet. In a third implementation, the packet may be formatted in single-user frame format with a modified LTF. A receiving device may receive the packet, and may perform channel estimation and power amplifier (PA) distortion cancellation based on the received packet.
    Type: Application
    Filed: September 20, 2018
    Publication date: April 18, 2019
    Inventors: Lin Yang, Bin Tian, Jialing Li Chen, Louay Jalloul, Vincent Knowles Jones, IV, Ning Zhang, Chi-Lin Su, Ahmad Abdulrahman Mohammed
  • Publication number: 20190058545
    Abstract: Apparatuses and methods for correcting a distorted signal at a receiver device during wireless local area network (WLAN) communications are disclosed. The apparatuses and methods include receiving, by a receiver device in a WLAN, a distorted signal corresponding to a data packet signal transmitted from a transmitter device, receiving, by the receiver device, one or more transmitter parameters corresponding to the transmission of the data packet signal, the one or more transmitter parameters including information to adjust the distorted signal, and adjusting, by the receiver device, the distorted signal to reconstruct the data packet signal based at least on the one or more transmitter parameters.
    Type: Application
    Filed: August 8, 2018
    Publication date: February 21, 2019
    Inventors: Jialing Li CHEN, Lin YANG, Bin TIAN, Ning ZHANG, Vincent Knowles JONES, IV, Didier Johannes Richard VAN NEE, Louay JALLOUL, Ahmad Abdulrahman MOHAMMED
  • Publication number: 20190014003
    Abstract: Methods, systems, and devices for wireless communication are described. A wireless device (e.g., an access point or a station) capable of supporting multiple chain configuration modes may dynamically select a chain configuration mode via channel analysis and energy efficiency analysis. A wireless device may monitor traffic on a wireless channel using a first chain configuration mode. The wireless device may determine an energy value associated with monitoring the traffic using the first (e.g., single) chain configuration, and further determine or infer an energy value associated with monitoring the traffic using a second (e.g., multi) chain configuration. The wireless device may perform a channel metric computation on the traffic (e.g., perform a QR decomposition of a channel matrix associated with the monitored traffic). The wireless device may then switch or select a chain configuration mode for operation based on a comparison between the determined energy values and the channel metric computation.
    Type: Application
    Filed: July 9, 2018
    Publication date: January 10, 2019
    Inventors: Sandip HomChaudhuri, Louay Jalloul, Pradeep Kumar Yenganti
  • Patent number: 9973225
    Abstract: A device includes one or more antennas configured to receive a first signal and a second signal from a second device. The first signal includes a non-precoded signal. The device further includes a receiver coupled to the one or more antennas. The receiver is configured to determine a first channel estimate based on the first signal and determine a second channel estimate based on the second signal. The receiver is also configured to determine an estimated distortion based at least in part on the first channel estimate and the second channel estimate. The receiver is further configured to perform a distortion reduction operation on the second signal based on the estimated distortion to generate a reduced-distortion signal.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: May 15, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Louay Jalloul, Ahmad Abdulrahman Mohammed
  • Patent number: 9973358
    Abstract: A method includes receiving a signal at a receiver device via a channel from a transmitter device and determining a frequency domain representation of the signal. The signal includes multiple modulation symbols. The method further includes detecting a first symbol of the signal and determining a time domain representation of a distortion estimate associated with the first symbol using a distortion recovery receiver (DRR) technique. The method further includes subtracting the distortion estimate from the first symbol to generate an updated estimate of the first symbol. The method further includes determining a frequency domain representation of a second symbol using a value that is based on a frequency domain representation of the distortion estimate and that is further based on a frequency domain representation of a quantized version of the updated estimate of the first symbol.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: May 15, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Ahmad Abdulrahman Mohammed, Louay Jalloul
  • Publication number: 20180083808
    Abstract: Apparatuses and methods are disclosed for receiving or obtaining wireless signals. A first wireless device may receive a wireless signal including a first signal and a number of second signals. The first signal may contain data intended for the first wireless device, and the number of second signals may contain data intended for one or more second wireless devices. The first wireless device may select one or more of the number of second signals, determine a pre-whitening matrix based on an interference and noise covariance of the unselected second signals, and recover the first signal by using the pre-whitened signal.
    Type: Application
    Filed: September 19, 2016
    Publication date: March 22, 2018
    Inventors: Louay Jalloul, Ahmad Abdulrahman Mohammed
  • Publication number: 20180070364
    Abstract: Methods, systems, and devices for wireless communication are described. A wireless device may receive a signal using a plurality of radio frequency (RF) chains, and may digitally sample the signal over a period of time at outputs of the plurality of RF chains. The sampling may result in a plurality of sample time vectors. The device may map the digitally sampled signal to a set of one or more virtual antenna ports. The mapping may be performed for one or more observation sets of digital samples of the signal. Each observation set may represent a window of sample time vectors. The device may process a signal of interest (SoI) by processing digital samples associated with the set of one or more virtual antenna ports. The device may identify an interference channel contributing to interference of the SoI, and the mapping may be based on mitigating the interference of the SoI.
    Type: Application
    Filed: June 22, 2017
    Publication date: March 8, 2018
    Inventors: Nicola Varanese, Louay Jalloul, Pierpaolo Vallese
  • Publication number: 20180070361
    Abstract: Methods, systems, and devices for wireless communication are described. A wireless device may transmit and receive signals using radio frequency (RF) chains associated with multiple radios configured for different radio access technologies (RATs). The wireless device may determine a signal of interest for each physical antenna of a set of RF chains associated with a RAT used to receive a desired signal. RF chains of the wireless device may be mapped to a virtual antenna configuration, which may be used to mitigate interference and subsequently process the desired receive signal. A determined interference channel may be used along with the determined signal of interest to map the RF chains to the virtual antenna configuration.
    Type: Application
    Filed: December 21, 2016
    Publication date: March 8, 2018
    Inventors: Nicola Varanese, Louay Jalloul, Andrea Garavaglia
  • Publication number: 20180063849
    Abstract: Systems and methods are disclosed for decoding wireless signals. For example, a wireless device may receive a wireless signal, de-interleave the received wireless signal to produce a first encoded signal and a second encoded signal, generate a first set of a priori log likelihood ratios (LLRs) by decoding and de-interleaving the first encoded signal, and recover a set of information bits from the received wireless signal based at least in part on the second encoded signal and the first set of a priori LLRs.
    Type: Application
    Filed: August 26, 2016
    Publication date: March 1, 2018
    Inventors: Ahmad Abdulrahman Mohammed, Louay Jalloul