Patents by Inventor Shafi Bashar

Shafi Bashar 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: 20150195849
    Abstract: Co-existence muting gaps can be included in an LTE protocol over unlicensed spectrum to enable a more efficient sharing with other wireless technologies, including wireless local area networks (WLANs). For example, an LTE protocol can be altered to include muting gaps that align with a WLAN beacon. In another example, a WLAN access point (AP) can create an information element (IE) that describes muting gaps available to WLAN stations (STAs) such that STAs can remain in a low power state until a muting gap is available. In yet another example, a cell tower and WLAN can be configured such that WLAN beacons occur when the cell tower is not transmitting during selected portions of LTE frames.
    Type: Application
    Filed: September 25, 2014
    Publication date: July 9, 2015
    Inventors: Shafi Bashar, Jong-Kae Fwu, Apostolos Papathanassiou, Shahrnaz Azizi
  • Publication number: 20150146645
    Abstract: Embodiments of an eNB and method for supporting communication with UEs on an LTE network in an unlicensed frequency band are generally described herein. The eNB may be configured to transmit a first LTE signal that includes a first reference signal during an active transmission period of a Wi-Fi network in the unlicensed frequency band, and to restrict frequency spectra used for the transmission of the first LTE signal from frequency spectra used by the Wi-Fi network during the active transmission period. The first reference signal may enable maintenance of synchronization between the eNB and the UEs at least during the active transmission period. The eNB may be further configured to transmit a second LTE signal during a silence period of the Wi-Fi network in frequency spectra used by the Wi-Fi network during the active transmission period.
    Type: Application
    Filed: August 29, 2014
    Publication date: May 28, 2015
    Inventors: Vadim Sergeyev, Shafi Bashar, Alexei Davydov, Jong-Kae Fwu
  • Publication number: 20150109972
    Abstract: Flexible Transmission Time Interval (TTI) bundling sizes may be used to provide efficient use of the radio spectrum in LTE-TDD communications. Different uplink/downlink frame configurations may be associated with different TTI bundling sizes. In one implementation, each of the frames may include uplink data that is transmitted via TTI bundles of a particular length in which the total number of uplink subframes corresponding to each of the packets is equal to a multiple of the particular length of the TTI bundles. Semi-Persistent Scheduling (SPS) may be used to transmit control information relating to transmission of the frames.
    Type: Application
    Filed: July 25, 2014
    Publication date: April 23, 2015
    Inventors: ALEXEY KHORYAEV, SHAFI BASHAR, ANDREY CHERVYAKOV, JONG-KAE FWU, HONG HE
  • Publication number: 20150085833
    Abstract: Techniques to manage heterogeneous carrier types are described. User equipment may comprise a processor circuit and a network control component for execution on the processor circuit to locate a synchronization signal (SS) and a cell-specific reference signal (CRS) in a physical resource block (PRB) pair of a long term evolution (LTE) system, the PRB pair having a physical signal pattern for a first carrier type, the physical signal pattern for the first carrier type to have a same number of defined positions between the SS and the CRS within the PRB pair as a physical signal pattern for a second carrier type. Other embodiments are described and claimed.
    Type: Application
    Filed: May 17, 2013
    Publication date: March 26, 2015
    Inventors: Seunghee Han, Alexei Davydov, Hong He, Shafi Bashar, Jong-Kae Fwu
  • Publication number: 20150009870
    Abstract: Methods, apparatuses, and systems are described related to mapping special subframes in a wireless communication network. In embodiments, an eNB may assign demodulation reference signals (DM-RSs) and/or cell-specific reference signals (CRSs) to a downlink pilot time slot (DwPTS) of a special subframe responsive to a determined configuration of the special subframe. In embodiments, an eNB may bundle the DwPTS or an uplink pilot time slot (UpPTS) of the special subframe with another subframe for scheduling. In embodiments, a UE may estimate a channel associated with the special subframe based on DM-RSs and/or CRSs transmitted in another subframe. In embodiments, an eNB may exclude the DwPTS from scheduling for certain special subframe configurations if a new carrier type (NCT) is used. In embodiments, an eNB may exclude certain special subframe configurations from use for NCT communications. Other embodiments may be described and claimed.
    Type: Application
    Filed: September 17, 2013
    Publication date: January 8, 2015
    Inventors: Shafi Bashar, Seunghee Han, Hong He, Jong-Kae Fwu, Alexei Davdow
  • Publication number: 20140302887
    Abstract: A small cell station communicates with user equipment utilizing a reduced overhead demodulation reference signal (DRMS) pattern when good channel conditions are detected. An indicator field is used to identify whether a reduced overhead DRMS pattern is being transmitted. If appropriate, the reduced overhead DRMS pattern is generated and transmitted by the small cell station and received and used by the user equipment as indicated by the indicator field.
    Type: Application
    Filed: December 20, 2013
    Publication date: October 9, 2014
    Inventors: Shafi Bashar, Seunghee Han, Jong-Kae Fwu, Alexei Vladimirovich Davydov, Mo-Han Fong
  • Publication number: 20140254504
    Abstract: Technology for selecting physical resource blocks (PRB) for cell-specific reference signal (CRS) transmission for a new carrier type (NCT) is disclosed. In an example, device operable in an evolved Node B (eNB) to select physical resource blocks (PRB) for cell-specific reference signal (CRS) transmission for a new carrier type (NCT) can include computer circuitry configured to: Determine a frequency bandwidth for the NCT; and select a CRS pattern of PRBs for a transmission of the CRS in the frequency bandwidth, wherein the frequency bandwidth includes PRBs with CRS and PRBs without CRS.
    Type: Application
    Filed: March 18, 2013
    Publication date: September 11, 2014
    Inventors: Shafi Bashar, Jong-Kae Fwu, Huaning Niu, Yuan Zhu, Alexei Davydov
  • Publication number: 20140198675
    Abstract: A user equipment (UE) for time division duplex (TDD) communication through a wireless communication channel has a receiver to receive a channel state information reference signal (CSI-RS) subframe configuration value, a CSI-RS configuration value, and a CSI-RS; and circuitry to determine a subframe index corresponding to a temporal position of a special subframe including the CSI-RS; determine a CSI-RS pattern of one or more orthogonal frequency division modulation (OFDM) resource elements carrying the CSI-RS, the pattern being from among a group of CSI-RS patterns that include OF DM resource elements in OFDM symbols corresponding to a physical downlink control channel (PDCCH) region of a legacy LTE wireless communication channel; control the receiver to receive the special subframe carrying the CSI-RS during the temporal position and at the one or more OFDM resource elements of the CSI-RS pattern; and measure the wireless communication channel based on the CSI-RS.
    Type: Application
    Filed: September 27, 2013
    Publication date: July 17, 2014
    Inventors: Hong He, Alexei Davydov, Seunghee Han, Jong-Kae Fwu, Shafi Bashar
  • Publication number: 20140029532
    Abstract: Embodiments of the present disclosure describe devices, methods, computer-readable media and systems configurations for uplink transmit power control for transmitting periodic channel state information. Other embodiments may be described and claimed.
    Type: Application
    Filed: July 29, 2013
    Publication date: January 30, 2014
    Inventors: Seunghee Han, Hong He, Shafi Bashar, Jong-Kae Fwu, Xiaogang Chen
  • Publication number: 20140029533
    Abstract: Embodiments of the present disclosure describe devices, methods, computer-readable media and systems configurations for transmitting periodic channel state information having large payload sizes. Other embodiments may be described and claimed.
    Type: Application
    Filed: July 29, 2013
    Publication date: January 30, 2014
    Inventors: Seunghee Han, Hong He, Shafi Bashar, Jong-Kae Fwu, Yuan Zhu
  • Publication number: 20140003452
    Abstract: Embodiments of the present disclosure describe devices, methods, computer-readable media and systems configurations for multiplexing channel state information and hybrid automatic repeat request-acknowledgement information. Other embodiments may be described and claimed.
    Type: Application
    Filed: July 2, 2013
    Publication date: January 2, 2014
    Inventors: Seunghee Han, Hong He, Jong-Kae Fwu, Shafi Bashar, Debdeep Chatterjee, Youn Hyoung Heo
  • Publication number: 20130301491
    Abstract: Technology is discussed for supporting the incorporation of a Primary Synchronization Signal (PSS) and/or a Secondary Synchronization Signal (SSS) within in a New Carrier Type (NCT) for a Component Carrier (CC). Guidelines for incorporating the PSS and/or the SSS in the NCT are discovered, together with potential collisions with other signals that can be avoided for various scenarios. In some examples, various guidelines and potential collisions discovered herein, for various scenarios, inform approaches to incorporating the PSS and/or the SSS based on the positioning of the PSS and/or the SSS. In other examples, other signals, such as DeModulation Reference Symbols (DMRS) are reconfigured to allow incorporation of the PSS and the SSS.
    Type: Application
    Filed: January 28, 2013
    Publication date: November 14, 2013
    Inventors: Shafi Bashar, Jong-Kae Fwu, Hong He
  • Publication number: 20130265972
    Abstract: A system for updating channel state information may include a base station wirelessly sending a reference signal to a user device. The bases station may receive channel state information based on the reference signal. Then, the bases station may determine a number of transport blocks to enable, a number of layers to use, and an order of modulation for each transport block based on the channel state information. The bases station may then receive subsequent channel state information from the user device using the determined parameters.
    Type: Application
    Filed: March 30, 2012
    Publication date: October 10, 2013
    Inventors: Hooman Shirani-Mehr, Jong-Kae Fwu, Shafi Bashar
  • Publication number: 20130265975
    Abstract: In accordance with some embodiments, uplink control information, including a channel quality index, may be transmitted using at least two layers. As a result, more information can be provided for use in situations, such as those involving carrier aggregation, where information for a large number of component carriers must all be provided on one primary component carrier.
    Type: Application
    Filed: December 30, 2011
    Publication date: October 10, 2013
    Inventors: Hooman Shirani-Mehr, Shafi Bashar, Jong-Kae Fwu, Xiaogang Chen, Apostolos Papathanassiou
  • Publication number: 20130195070
    Abstract: A particular kind of component carrier that may be used as a secondary cell in an LTE system is a new type carrier that has reduced or eliminated legacy control signaling such as the omission of CRSs. Alternative techniques are described for performing timing and frequency synchronization in the downlink between an eNB and a UE when CRSs are not present in a component carrier. These techniques involve using either channel state information reference signals or UE-specific reference signals.
    Type: Application
    Filed: June 29, 2012
    Publication date: August 1, 2013
    Inventors: Shafi Bashar, Hong He, Huaning Niu, Jong-Kae Fwu, Yuan Zhu, Xiaogang Chen