Patents by Inventor Samel Celebi

Samel Celebi 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: 20150244505
    Abstract: Apparatus and methods for wireless communications include determining a first echo cancellation metric indicative of a first amount of echo cancellation as a first function of a first transmit power of a first wireless communications device; and providing the first echo cancellation metric to a scheduling entity for scheduling full duplex (FD) or half duplex (HD) communication resources for the first wireless communications device.
    Type: Application
    Filed: February 21, 2014
    Publication date: August 27, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Samel CELEBI, Luca Blessent
  • Patent number: 9119220
    Abstract: Methods and apparatus for efficient communication of backlog information, e.g., backlog information indicating amounts of uplink traffic waiting to transmitted by a wireless terminal are described. Delta backlog reports are used in addition to absolute backlog reports, thus reducing control signaling overhead, at least some information communicated in a delta backlog report being referenced with respect to a previously transmitted backlog report. A base station uses received backlog information from wireless terminals in determining scheduling of uplink traffic channel segments In some embodiments, the absolute backlog report uses a first fixed size report format, while the delta backlog report using a second fixed size report format, said second size being different from said first fixed size.
    Type: Grant
    Filed: December 13, 2006
    Date of Patent: August 25, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Arnab Das, Sundeep Rangan, Yunus Hussain, Samel Celebi
  • Publication number: 20150223143
    Abstract: In one or more access points of a wireless communication network, a method for participating in a distributed clustering process directed at defining clusters of access points wherein each of the clusters comprises a cluster head and associated member nodes includes determining a marginal cost of associating an access point to each of distinct clusters of access points, based on a defined cost function, and associating the access point to one of the clusters of APs for which the marginal cost is minimized. The method may be performed by multiple access points in a peer-to-peer fashion and iterated until a stable cluster configuration is obtained. A cluster head may similarly be appointed in a distributed fashion by a current cluster head comparing total cost functions between different cluster configurations with different cluster heads.
    Type: Application
    Filed: January 31, 2014
    Publication date: August 6, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Samel Celebi, Soumya Das, Insoo Hwang
  • Publication number: 20150201384
    Abstract: A system for transmitter DC offset compensation is operable by a network entity that communicates with at least one other network entity. The network entity determines a quality indicator for the at least one other network entity and adjusts a mixer bias voltage. The network entity observes for changes in the quality indicator and readjusts the mixer bias voltage based on the changes in the quality indicator to improve the quality indicator. The network entity continues to observe for changes in the quality indicator and continues to readjust the mixer bias voltage until the quality indicator is optimized.
    Type: Application
    Filed: January 10, 2014
    Publication date: July 16, 2015
    Applicant: QUALCOMM INCORPORATED
    Inventor: Samel Celebi
  • Publication number: 20150181819
    Abstract: A system for automatic watering of a plurality of plants using a programmable airborne vehicle (AV). The AV is capable of locating the plants to be watered via various wireless, sonar and pattern-recognition-based means. The AV is programmed with scheduling information such as the amount of water and the frequency of watering for each plant. The optional base unit acts as a refilling and recharging station for the AV.
    Type: Application
    Filed: December 31, 2013
    Publication date: July 2, 2015
    Inventors: Samel Celebi, Kaya Celebi
  • Publication number: 20150173011
    Abstract: A method of coordinating a small cell with a plurality of small cells includes estimating backhaul bandwidth and backhaul bandwidth utilization of the small cell; estimating aggregate bandwidth utilization for the small cell and the plurality of small cells based on the estimated backhaul bandwidth utilization for each of the small cells; selecting the small cell as a cluster head for a cluster of the small cells based on the estimated aggregate backhaul bandwidth utilization, the cluster including at least some of the small cells; and communicating, via the cluster head, information between a network entity and the small cells of the cluster.
    Type: Application
    Filed: December 18, 2013
    Publication date: June 18, 2015
    Applicant: QUALCOMM INCORPORATED
    Inventors: Soumya Das, Samel Celebi, Kaushik Chakraborty, Bongyong Song, Samir Salib Soliman
  • Publication number: 20150109969
    Abstract: A method, an apparatus, and a computer program product for providing full duplex (FD) wireless communication to an FD capable (FDC) user equipment (UE) among one or more UEs include determining allocations of one or more resource blocks (RBs) to the one or more UEs, determining FD capabilities and scheduling parameters of the one or more UEs, determining at least one FD portion and at least one half duplex (HD) portion in the one or more RBs based on the FD capabilities and the scheduling parameters of the one or more UEs, wherein a concurrent downlink (DL) and uplink (UL) communication is scheduled in the at least one FD portion, and adjusting the allocations of the one or more RBs based on the at least one FD portion and the at least one HD portion.
    Type: Application
    Filed: October 22, 2013
    Publication date: April 23, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Samel CELEBI, Luca Blessent, Niranjan Nayak Ratnakar, Raja Sekhar Bachu
  • Patent number: 8948157
    Abstract: Aspects disclosed herein relate to facilitating synchronizing frequency and/or timing of a wireless network. In an example, with a femto node configured to receive one or more signals from one or more anchor sources, determine that at least one of the one or more signals are received at least at a threshold signal quality, determine whether a difference in a local frequency and/or a local timing is within a threshold difference to a signal frequency and/or a signal timing determined based on the at least one of the one or more signals, and advertise an anchor status where the difference is within the threshold difference.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: February 3, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Marjan Baghaie Abchuyeh, Samel Celebi, Luca Blessent
  • Publication number: 20130308475
    Abstract: The present disclosure presents a method and apparatus for controlling an uplink (UL) rate of one or more use equipments (UEs) served by a base station. For example, the method may include obtaining one or more measurements of a plurality of signals from a sub-set of the one or more UEs served by the base station over a period of time. Furthermore, such an example method may include comparing the measurements to one or more respective target values to generate a power activity indicator (PAI) metric and comparing the measurements to one or more respective target values to generate a power activity indicator (PAI) metric. As such, the uplink interference in heterogeneous networks may be controlled.
    Type: Application
    Filed: March 13, 2013
    Publication date: November 21, 2013
    Applicant: QUALCOMM INCORPORATED
    Inventors: Samel CELEBI, Adam C. POLAK, Luca BLESSENT
  • Patent number: 8548515
    Abstract: Provided is an feedback mechanism to correct power control information in a broadcast signal that is determined to be incorrect by one or more devices that receive and rely on the broadcast information. A device that receives the incorrect broadcast information can determine a correction and to the information and provide a recommendation to tilt source of the broadcast information. The source can selectively determine whether to modify the broadcast information based on the recommendation from one or more devices. If the broadcast information is modified, subsequent devices that receive the broadcast information are provided with the modified information. If further changes are needed, the subsequent devices can provide further recommended changes.
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: October 1, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Samel Celebi, Charles Stanski, Sundeep Rangan
  • Publication number: 20130242861
    Abstract: Aspects disclosed herein relate to facilitating synchronizing frequency and/or timing of a wireless network. In an example, with a femto node configured to receive one or more signals from one or more anchor sources, determine that at least one of the one or more signals are received at least at a threshold signal quality, determine whether a difference in a local frequency and/or a local timing is within a threshold difference to a signal frequency and/or a signal timing determined based on the at least one of the one or more signals, and advertise an anchor status where the difference is within the threshold difference.
    Type: Application
    Filed: September 6, 2012
    Publication date: September 19, 2013
    Applicant: QUALCOMM Incorporated
    Inventors: Marjan Baghaie ABCHUYEH, Samel Celebi, Luca Blessent
  • Patent number: 8331217
    Abstract: A ground- or roof-top-based repeater in an OFDM system uses multiple transmission antennas to transmit multiple identical OFDM signals. Dithering is performed by introducing a slight variable-frequency phase offset to all but one of the multiple identical transmitted OFDM signals. The effective overall channel is more dynamic and provides spatial diversity to minimize long periods of fading in fading subchannels of the OFDM signals when the receiver is in a slow moving or stationary situation. To overcome the additional cancellation problem that can occur when two or more of the transmitting antennas are (i) in a line-of-site position with the receiver and (ii) approximately the same distance from the receiver, a delay is deliberately introduced to make the delayed signals appear to be reflected signals. This delay will not negatively impact the OFDM receiver performance as long as the delay is within the guard interval used in the OFDM process.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: December 11, 2012
    Assignee: Agere Systems LLC
    Inventors: Samel Celebi, Jie Song, Paul M. Yun
  • Publication number: 20110256902
    Abstract: Provided is an feedback mechanism to correct power control information in a broadcast signal that is determined to be incorrect by one or more devices that receive and rely on the broadcast information. A device that receives the incorrect broadcast information can determine a correction and to the information and provide a recommendation to tilt source of the broadcast information. The source can selectively determine whether to modify the broadcast information based on the recommendation from one or more devices. If the broadcast information is modified, subsequent devices that receive the broadcast information are provided with the modified information. If further changes are needed, the subsequent devices can provide further recommended changes.
    Type: Application
    Filed: April 15, 2011
    Publication date: October 20, 2011
    Applicant: QUALCOMM Incorporated
    Inventors: Samel Celebi, Charles Stanski, Sundeep Rangan
  • Patent number: 7957757
    Abstract: Provided is an feedback mechanism to correct power control information in a broadcast signal that is determined to be incorrect by one or more devices that receive and rely on the broadcast information. A device that receives the incorrect broadcast information can determine a correction and to the information and provide a recommendation to the source of the broadcast information. The source can selectively determine whether to modify the broadcast information based on the recommendation from one or more devices. If the broadcast information is modified, subsequent devices that receive the broadcast information are provided with the modified information. If further changes are needed, the subsequent devices can provide further recommended changes.
    Type: Grant
    Filed: July 5, 2007
    Date of Patent: June 7, 2011
    Assignee: Qualcomm Incorporated
    Inventors: Samel Celebi, Charles Stanski, Sundeep Rangan
  • Patent number: 7853281
    Abstract: Power control reports are communicated less frequently than the power control commands. The base station tracks the commands sent to the wireless terminal and estimates the wireless terminal's control channel transmit power. Received power control channel reports are utilized to compare the base station's estimated wireless terminal control channel transmit power to the actual wireless terminal control channel transmit power. An estimate of the error rate of transmitted power control signals is generated based using the tracked power command information and received power report information. Adjustments are performed in the power control command signaling to compensate for estimated error rates.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: December 14, 2010
    Assignee: QUALCOMM Incorporated
    Inventors: Arnab Das, Sundeep Rangan, Samel Celebi
  • Publication number: 20090180564
    Abstract: A ground- or roof-top-based repeater in an OFDM system uses multiple transmission antennas to transmit multiple identical OFDM signals. Dithering is performed by introducing a slight variable-frequency phase offset to all but one of the multiple identical transmitted OFDM signals. The effective overall channel is more dynamic and provides spatial diversity to minimize long periods of fading in fading subchannels of the OFDM signals when the receiver is in a slow moving or stationary situation. To overcome the additional cancellation problem that can occur when two or more of the transmitting antennas are (i) in a line-of-site position with the receiver and (ii) approximately the same distance from the receiver, a delay is deliberately introduced to make the delayed signals appear to be reflected signals. This delay will not negatively impact the OFDM receiver performance as long as the delay is within the guard interval used in the OFDM process.
    Type: Application
    Filed: March 27, 2009
    Publication date: July 16, 2009
    Applicant: AGERE SYSTEMS INC.
    Inventors: Samel Celebi, Jie Song, Paul M. Yun
  • Patent number: 7529177
    Abstract: A ground-or roof-top-based repeater in an OFDM system uses multiple transmission antennas to retransmit satellite signals. By using multiple transmission antennas, multiple identical OFDM signals are transmitted. Dithering is performed by, using a phase of Rayleigh process generator, introducing a slight variable-frequency phase offset to all but one of the multiple identical transmitted OFDM signals, and thus the effective overall channel is more dynamic and provides spatial diversity to minimize long periods of fading in fading subchannels of the OFDM signals when the receiver is in a slow moving or stationary situation. To overcome the additional cancellation problem that can occur when two or more of the transmitting antennas are in a line-of-site position with the receiver and approximately the same distance from the receiver, a delay is deliberately introduced to make the delayed signal(s) appear to be reflected signals.
    Type: Grant
    Filed: August 28, 2002
    Date of Patent: May 5, 2009
    Assignee: Agere Systems Inc.
    Inventors: Samel Celebi, Jie Song, Paul M. Yun
  • Publication number: 20090011785
    Abstract: Provided is an feedback mechanism to correct power control information in a broadcast signal that is determined to be incorrect by one or more devices that receive and rely on the broadcast information. A device that receives the incorrect broadcast information can determine a correction and to the information and provide a recommendation to the source of the broadcast information. The source can selectively determine whether to modify the broadcast information based on the recommendation from one or more devices. If the broadcast information is modified, subsequent devices that receive the broadcast information are provided with the modified information. If further changes are needed, the subsequent devices can provide further recommended changes.
    Type: Application
    Filed: July 5, 2007
    Publication date: January 8, 2009
    Inventors: Samel Celebi, Chuck Stanski, Sundeep Rangan
  • Publication number: 20070258365
    Abstract: Methods and apparatus for efficient communication of backlog information, e.g., backlog information indicating amounts of uplink traffic waiting to transmitted by a wireless terminal are described. Delta backlog reports are used in addition to absolute backlog reports, thus reducing control signaling overhead, at least some information communicated in a delta backlog report being referenced with respect to a previously transmitted backlog report. A base station uses received backlog information from wireless terminals in determining scheduling of uplink traffic channel segments In some embodiments, the absolute backlog report uses a first fixed size report format, while the delta backlog report using a second fixed size report format, said second size being different from said first fixed size.
    Type: Application
    Filed: December 13, 2006
    Publication date: November 8, 2007
    Inventors: Arnab DAS, Sundeep Rangan, Yunus Hussain, Samel Celebi
  • Publication number: 20070253358
    Abstract: Methods and apparatus related to wireless terminal reporting alternative selection for a fixed bit size control information request report, e.g., a 4 bit uplink traffic channel request report, are described. A wireless terminal maintains a plurality of different request groups corresponding to uplink traffic to be transmitted. The same request report format includes a plurality of reporting alternatives, different reporting alternatives corresponding to different request groups. Backlog can and sometimes does exist simultaneously corresponding to request groups corresponding to different reporting alternatives. The wireless terminal uses priority information associated with the request groups having non-zero backlog to select a reporting alternative. In some embodiments, at least some of the request groups have priorities which are calculated by the wireless terminal and change as a function of determined transmission deadline information.
    Type: Application
    Filed: December 13, 2006
    Publication date: November 1, 2007
    Inventors: Arnab Das, Vincent Park, Yunus Hussain, Samel Celebi