Patents by Inventor Esmail Hejazi Dinan
Esmail Hejazi Dinan 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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Patent number: 8289852Abstract: A method of scheduling air-interface resources is disclosed. A throughput indicator associated with a wireless device is received. A modulation and coding scheme indicator is received. The modulation and coding scheme indicator being associated with a modulation and coding scheme recently used by the wireless device. Based on the modulation and coding scheme indicator, a token bucket size for a token bucket is selected. Based on the throughput indicator, a token rate for the token bucket is received. An air-interface resource is allocated to the wireless device based on the token bucket.Type: GrantFiled: February 18, 2009Date of Patent: October 16, 2012Assignee: Clearwire IP Holdings LLCInventors: Daniel A. Vivanco, Esmail Hejazi Dinan, Vijay Rudraraju, Howard Bishop Anderson, Hemanth Balaji Pawar
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Patent number: 8259600Abstract: A throughput of an air interface is recorded during a plurality of intervals to produce a set of recorded throughputs. A slot utilization is also recorded during each of the plurality of intervals to produce a set of recorded slot utilizations. A slot is an allocation of time and frequency. A linear regression on the data points of the set of recorded throughputs and the set of recorded slot utilizations is performed to produce a regression line of throughput versus slot utilization. An indicator of air interface quality is calculated based on the slope of the regression line.Type: GrantFiled: June 13, 2008Date of Patent: September 4, 2012Assignee: Clearwire IP Holdings LLCInventors: Esmail Hejazi Dinan, Vijay Rudraraju, Howard Bishop Anderson, Hemanth Balaji Pawar, Daniel A. Vivanco
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Patent number: 8259684Abstract: What is disclosed is a method of detecting a current seasonal transition from fall to winter or from winter to spring in a geographic area. The method includes receiving a plurality of wireless signals from a plurality of wireless communication devices in the geographic area, generating signal strength data for the received wireless signals, processing the signal strength data to generate current signal strength data patterns indicating current signal strength changes over a time period, and comparing the current signal strength data patterns to historical signal strength data patterns associated with past seasonal transitions in the geographic area. The method also includes detecting the current seasonal transition in the geographic area based on the comparison, and generating an indicator when the current seasonal transition is detected.Type: GrantFiled: October 30, 2008Date of Patent: September 4, 2012Assignee: Clearwire IP Holdings LLCInventors: Esmail Hejazi Dinan, Brigido Subiaur, Mohd Khalil Abubakar
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Patent number: 8254943Abstract: In various embodiments, methods and systems are provided for backhaul transport recovery. In an embodiment, a method for backhaul transport recovery is provided. The method includes broadcasting a backhaul recovery request, and receiving backhaul recovery responses from at least one wireless device. The method also includes selecting at least one wireless recovery device from the at least one wireless device based upon the backhaul recovery responses, and establishing at least one backhaul recovery channel through the at least one wireless recovery device.Type: GrantFiled: December 22, 2008Date of Patent: August 28, 2012Assignee: Sprint Communications Company L.P.Inventors: Esmail Hejazi Dinan, Mohammad Hassan Partovi, Mehdi Alasti, Behnam Neekzad
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Patent number: 8213949Abstract: What is claimed is a method of transferring overhead information in a wireless communication system, where the overhead information is encoded with a first modulation scheme, and where the overhead information is wirelessly transferred to a plurality of wireless communication devices in communication with the wireless communication system. The method includes receiving signal quality information from each of the plurality of wireless communication devices, processing the signal quality information to determine a second modulation scheme for the overhead information, where the second modulation scheme is determined to allow the overhead information to be decoded by each of the plurality of wireless communication devices, and the second modulation scheme is of a higher order of modulation than the first modulation scheme.Type: GrantFiled: November 26, 2008Date of Patent: July 3, 2012Assignee: Clearwire IP Holdings LLCInventors: Esmail Hejazi Dinan, Daniel A. Vivanco, Howard Bishop Anderson, Hemanth Balaji Pawar, Vijay Rudraraju
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Patent number: 8185146Abstract: A first wireless device associated with a first profile is communicated with using a first transmitted power. A second wireless device associated with a second profile is communicated with using a second transmitted power. A third transmitted power is determined. The third transmitted power is associated with the first wireless device receiving data using a target modulation and coding scheme. A maximum transmitted power is determined to be exceeded if the third transmitted power is used to communicate with the first wireless device. The second wireless device is communicated with using a fourth transmitted power. The fourth transmitted power allows the third transmitted power to be used to communicate with the first wireless device without exceeding the maximum transmitted power.Type: GrantFiled: July 24, 2009Date of Patent: May 22, 2012Assignee: Clearwire IP Holdings LLCInventors: Esmail Hejazi Dinan, Krishna D. Sitaram, Jong-hak Jung, Swati Tiwari, Hemanth Balaji Pawar
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Patent number: 8144639Abstract: A wireless communication system comprises a mode transition control system. The mode transition control system comprises a communication interface and a processing system. The communication interface is configured to receive first information for a first user. The processing system is configured to process the first information and select a first mode transition sequence for the first user, wherein the first mode transition sequence comprises an active mode to sleep mode to idle mode transition, and an idle mode to sleep mode to active mode transition. The communication interface is configured to receive second information for a second user. The processing system is configured to process the second information and select a second mode transition sequence for the second user, wherein the second mode transition sequence comprises an active mode to sleep mode transition, and a sleep mode to active mode transition. The communication interface is configured to receive third information for a third user.Type: GrantFiled: November 14, 2008Date of Patent: March 27, 2012Assignee: Clearwire IP Holdings, LLCInventors: Mohammad Ghaus, PinalKumari K. Tailor, Esmail Hejazi Dinan, Hetal J. Mistry
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Patent number: 8121090Abstract: A mobile communication device wirelessly transfers user communications to a first wireless base station. The mobile communication device identifies a second wireless base station that has sufficient performance characteristics for wireless communication with the mobile communication device and that has a higher communication priority than the first wireless base station. In response, the mobile communication device initiates a hand-off from the first wireless base station to the second wireless base station. In response to the hand-off, the mobile communication device stops the wireless transfer of the user communications to the first wireless base station and wirelessly transfers additional user communications to the second wireless base station.Type: GrantFiled: July 29, 2008Date of Patent: February 21, 2012Assignee: Clearwire IP Holdings LLCInventors: Esmail Hejazi Dinan, Jong-hak Jung, Swati Tiwari, Hemanth Balaji Pawar, Krishna D. Sitaram
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Patent number: 8107888Abstract: A method for communication operating mode selection is presented. In the method, each of a plurality of communication signals is transmitted by way of a separate one of a first plurality of antennas according to a first operating mode. The transmitted communication signals are received by way of a second plurality of antennas. A multi-path power metric of the received communication signals is generated. Based on the multi-path power metric, each of the plurality of communication signals is transmitted by way of the first plurality of antennas according to a second operating mode instead of the first operating mode.Type: GrantFiled: March 4, 2009Date of Patent: January 31, 2012Assignee: Clearwire IP Holdings, LLCInventors: Esmail Hejazi Dinan, Saied Kazeminejad
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Patent number: 8086249Abstract: A method of operating a communication system is disclosed. The method includes receiving a first location information related to a geographic location of a wireless communication device and a second location information related to a geographic location of an access node, processing the first location information and the second location information to determine a distance between the wireless communication device and the access node, processing the distance to determine a first delay metric, wherein the first delay metric indicates a first time delay associated with a wireless link between the access node and the wireless communication device, and processing the first delay metric to determine if the first delay metric exceeds a threshold delay.Type: GrantFiled: August 25, 2008Date of Patent: December 27, 2011Assignee: Clearwire IP Holdings, LLCInventors: Esmail Hejazi Dinan, Saied Kazeminejad
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Patent number: 8068786Abstract: A method for identifying time of flight interference in a wireless communication network is provided. The method includes detecting interference during a first uplink sub-frame at an interference destination base station, and transmitting a time of flight interference source detection request to a gateway, where the time of flight interference source detection request comprises a time of flight interference period. The method also includes determining one or more base stations in the vicinity of the interference destination base station, where the one or more base stations in the vicinity of the interference destination base station operate at a same frequency as the interference destination base station.Type: GrantFiled: February 18, 2009Date of Patent: November 29, 2011Assignee: Clear Wireless LLCInventors: Hemanth Balaji Pawar, Swati Tiwari, Krishna D. Sitaram, Jong-hak Jung, Esmail Hejazi Dinan
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Patent number: 8068838Abstract: A mobile communication device wirelessly transfers user communications to a first wireless base station. The mobile communication device determines a first metric based on a load indicator for the first base station. The mobile communication device identifies a second wireless base station and determines a second metric based on a load indicator for the second base station. If the second metric is superior to the first metric, the mobile communication device determines if the second base station has sufficient performance characteristics for communication with the device. If the performance is sufficient, the mobile communication device initiates a hand-off from the first base station to the second base station. The mobile communication device may use additional factors to determine the first and second metrics.Type: GrantFiled: August 19, 2008Date of Patent: November 29, 2011Assignee: Clear Wireless LLCInventors: Esmail Hejazi Dinan, Jong-hak Jung, Swati Tiwari, Hemanth Balaji Pawar, Krishna D. Sitaram
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Patent number: 8031665Abstract: A wireless communication system allocates connection identifiers into a first group and a second group. The system associates sectors or base stations with a reservation zone, and associates the reservation zone with the first group of connection identifiers. The system associates the first group of connection identifiers with a quality-of-service level. In response to determining that a user has the quality-of-service level, the system reserves at least one of the connection identifiers in the first group for the user and uses the reserved connection identifier to communicate with the first user in all of the sectors or base stations associated with the reservation zone.Type: GrantFiled: September 16, 2008Date of Patent: October 4, 2011Assignee: Clear Wireless LLCInventors: Esmail Hejazi Dinan, Jong-hak Jung, Swati Tiwari, Hemanth Balaji Pawar, Krishna D. Sitaram
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Publication number: 20110205916Abstract: An inspection node receives an event to begin monitoring a traffic flow where the event comprises a flow identifier associated with the traffic flow. The inspection node receives the traffic flow where the traffic flow comprises a plurality of packets and begins inspecting the plurality of the packets to obtain an application identifier. Based upon the flow identifier and the application identifier, the inspection node performs a sampling process on the traffic flow. After determining the end of the traffic flow, the inspection node terminates the sampling process.Type: ApplicationFiled: February 25, 2010Publication date: August 25, 2011Applicant: CLEAR WIRELESS LLCInventor: Esmail Hejazi DINAN
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Patent number: 7948913Abstract: A channel capacity indication, indicating the capacity of a feedback channel and a channel quality indication, indicating the quality of a feedback channel are received. A mode of operation of the header-compression algorithm is selected, based on the received indications. Data is then communicated according to the selected mode of operation of the header-compression algorithm.Type: GrantFiled: October 30, 2008Date of Patent: May 24, 2011Assignee: Clear Wireless LLCInventor: Esmail Hejazi Dinan
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Publication number: 20110021236Abstract: A first wireless device associated with a first profile is communicated with using a first transmitted power. A second wireless device associated with a second profile is communicated with using a second transmitted power. A third transmitted power is determined. The third transmitted power is associated with the first wireless device receiving data using a target modulation and coding scheme. A maximum transmitted power is determined to be exceeded if the third transmitted power is used to communicate with the first wireless device. The second wireless device is communicated with using a fourth transmitted power. The fourth transmitted power allows the third transmitted power to be used to communicate with the first wireless device without exceeding the maximum transmitted power.Type: ApplicationFiled: July 24, 2009Publication date: January 27, 2011Applicant: Clear Wireless LLCInventors: Esmail Hejazi Dinan, Krishna D. Sitaram, Jong-hak Jung, Swati Tiwari, Hemanth Balaji Pawar
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Publication number: 20100323704Abstract: Systems, methods, and software are provided to manage a handover of a mobile communication device from a source base station to a target base station. In an embodiment, a method comprises exchanging wireless communications between a plurality of mobile communication devices and a first base station system, processing the communications to determine a plurality of mobility profiles associated with the plurality of mobile communication devices served by the first base station system. A handover request to handover a mobile communication device from a second base station system to the first base station system is received. The plurality of mobility profiles are processed to select a candidate mobile communication device from the plurality of mobile communication devices. A handover of the candidate mobile communication device is initiated from the first base station system to a target base station system.Type: ApplicationFiled: June 19, 2009Publication date: December 23, 2010Applicant: Clear Wireless LLCInventors: PinalKumari K. Tailor, Esmail Hejazi Dinan, Hetal J. Mistry
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Publication number: 20100227567Abstract: A method for communication operating mode selection is presented. In the method, each of a plurality of communication signals is transmitted by way of a separate one of a first plurality of antennas according to a first operating mode. The transmitted communication signals are received by way of a second plurality of antennas. A multi-path power metric of the received communication signals is generated. Based on the multi-path power metric, each of the plurality of communication signals is transmitted by way of the first plurality of antennas according to a second operating mode instead of the first operating mode.Type: ApplicationFiled: March 4, 2009Publication date: September 9, 2010Applicant: Clear Wireless LLCInventors: Esmail Hejazi Dinan, Saied Kazeminejad
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Publication number: 20100223523Abstract: A method of communication retransmission based on performance relative to an expected quality of service is presented. In the method, data packets associated with the expected quality of service are transmitted. The transmission performance associated with the transmission of the data packets is determined in relation to the expected quality of service. A maximum number of retransmissions for one of the data packets to be transmitted is selected based on the transmission performance. The one of the data packets is transmitted using the communication retransmission scheme limited by the selected maximum number of retransmissions.Type: ApplicationFiled: March 2, 2009Publication date: September 2, 2010Applicant: Clear Wireless LLCInventors: Esmail Hejazi Dinan, Mohammad Ghaus, PinalKumari K. Tailor
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Publication number: 20100214923Abstract: A wireless device is communicated with using a first throughput. A predicted location for the wireless device is determined. Based on the predicted location, a predicted maximum throughput at the predicted location is determined. Based on the predicted maximum throughput, a second throughput is determined. The wireless device is communicated with using the second throughput.Type: ApplicationFiled: February 20, 2009Publication date: August 26, 2010Applicant: Clear Wireless LLCInventors: Daniel A. Vivanco, Esmail Hejazi Dinan, Hemanth Balaji Pawar, Howard Bishop Anderson, Vijay Rudraraju