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).
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Publication number: 20150244505Abstract: 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: ApplicationFiled: February 21, 2014Publication date: August 27, 2015Applicant: QUALCOMM IncorporatedInventors: Samel CELEBI, Luca Blessent
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Patent number: 9119220Abstract: 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: GrantFiled: December 13, 2006Date of Patent: August 25, 2015Assignee: QUALCOMM IncorporatedInventors: Arnab Das, Sundeep Rangan, Yunus Hussain, Samel Celebi
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Publication number: 20150223143Abstract: 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: ApplicationFiled: January 31, 2014Publication date: August 6, 2015Applicant: QUALCOMM IncorporatedInventors: Samel Celebi, Soumya Das, Insoo Hwang
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Publication number: 20150201384Abstract: 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: ApplicationFiled: January 10, 2014Publication date: July 16, 2015Applicant: QUALCOMM INCORPORATEDInventor: Samel Celebi
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Publication number: 20150181819Abstract: 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: ApplicationFiled: December 31, 2013Publication date: July 2, 2015Inventors: Samel Celebi, Kaya Celebi
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Publication number: 20150173011Abstract: 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: ApplicationFiled: December 18, 2013Publication date: June 18, 2015Applicant: QUALCOMM INCORPORATEDInventors: Soumya Das, Samel Celebi, Kaushik Chakraborty, Bongyong Song, Samir Salib Soliman
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Publication number: 20150109969Abstract: 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: ApplicationFiled: October 22, 2013Publication date: April 23, 2015Applicant: QUALCOMM IncorporatedInventors: Samel CELEBI, Luca Blessent, Niranjan Nayak Ratnakar, Raja Sekhar Bachu
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Patent number: 8948157Abstract: 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: GrantFiled: September 6, 2012Date of Patent: February 3, 2015Assignee: QUALCOMM IncorporatedInventors: Marjan Baghaie Abchuyeh, Samel Celebi, Luca Blessent
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Publication number: 20130308475Abstract: 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: ApplicationFiled: March 13, 2013Publication date: November 21, 2013Applicant: QUALCOMM INCORPORATEDInventors: Samel CELEBI, Adam C. POLAK, Luca BLESSENT
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Patent number: 8548515Abstract: 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: GrantFiled: April 15, 2011Date of Patent: October 1, 2013Assignee: QUALCOMM IncorporatedInventors: Samel Celebi, Charles Stanski, Sundeep Rangan
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Publication number: 20130242861Abstract: 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: ApplicationFiled: September 6, 2012Publication date: September 19, 2013Applicant: QUALCOMM IncorporatedInventors: Marjan Baghaie ABCHUYEH, Samel Celebi, Luca Blessent
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Patent number: 8331217Abstract: 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: GrantFiled: March 27, 2009Date of Patent: December 11, 2012Assignee: Agere Systems LLCInventors: Samel Celebi, Jie Song, Paul M. Yun
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Publication number: 20110256902Abstract: 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: ApplicationFiled: April 15, 2011Publication date: October 20, 2011Applicant: QUALCOMM IncorporatedInventors: Samel Celebi, Charles Stanski, Sundeep Rangan
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Patent number: 7957757Abstract: 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: GrantFiled: July 5, 2007Date of Patent: June 7, 2011Assignee: Qualcomm IncorporatedInventors: Samel Celebi, Charles Stanski, Sundeep Rangan
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Patent number: 7853281Abstract: 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: GrantFiled: July 14, 2006Date of Patent: December 14, 2010Assignee: QUALCOMM IncorporatedInventors: Arnab Das, Sundeep Rangan, Samel Celebi
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Publication number: 20090180564Abstract: 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: ApplicationFiled: March 27, 2009Publication date: July 16, 2009Applicant: AGERE SYSTEMS INC.Inventors: Samel Celebi, Jie Song, Paul M. Yun
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Patent number: 7529177Abstract: 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: GrantFiled: August 28, 2002Date of Patent: May 5, 2009Assignee: Agere Systems Inc.Inventors: Samel Celebi, Jie Song, Paul M. Yun
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Publication number: 20090011785Abstract: 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: ApplicationFiled: July 5, 2007Publication date: January 8, 2009Inventors: Samel Celebi, Chuck Stanski, Sundeep Rangan
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Publication number: 20070258365Abstract: 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: ApplicationFiled: December 13, 2006Publication date: November 8, 2007Inventors: Arnab DAS, Sundeep Rangan, Yunus Hussain, Samel Celebi
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Publication number: 20070253358Abstract: 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: ApplicationFiled: December 13, 2006Publication date: November 1, 2007Inventors: Arnab Das, Vincent Park, Yunus Hussain, Samel Celebi