Patents by Inventor Farhad Meshkati
Farhad Meshkati 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: 20120322494Abstract: Methods for management of high-speed dedicated physical control channel decoding in soft handover procedures include various methods that include controlling reverse link transmission power. Different algorithms may be used for controlling transmission power, including algorithms summarized as determining path-loss differences, determining a difference between pilot channel power from HSDPA serving and non-serving NodeBs, and adjusting a signal-to-interference target, an attenuation factor, or similar parameters for controlling reverse link power. Another of the management methods includes selecting a HSDPA serving NodeB for a mobile entity jointly based on the downlink and uplink channel quality, loading, and resource availability. The methods, and aspects of the methods, may be embodied in wireless communications apparatus, for example, in a NodeB or mobile entity.Type: ApplicationFiled: December 8, 2011Publication date: December 20, 2012Applicant: QUALCOMM IncorporatedInventors: Yan Zhou, Vinay Chande, Farhad Meshkati, Mehmet Yavuz
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Publication number: 20120309394Abstract: Methods and apparatuses are provided for causing active hand-in of a device from a macrocell base station to a femto node, which can be an inter-frequency hand-in. The femto node can broadcast a beacon, which can be received and reported by a device to a source base station along with one or more parameters for disambiguating a target femto node. The source base station can communicate a handover message to the femto node or a related femto gateway along with the one or more parameters. The femto node or femto gateway can disambiguate the intended target femto node based in part on the one or more parameters, which can include applying one or more filters. Additionally, the femto node can broadcast multiple beacons to assist in disambiguation of the target femto node. Also, where complete disambiguation is not possible, the femto gateway can prepare multiple femto nodes for hand-in.Type: ApplicationFiled: November 30, 2011Publication date: December 6, 2012Applicant: QUALCOMM IncorporatedInventors: Andrei Dragos RADULESCU, Vinay CHANDE, Jen Mei CHEN, Christophe CHEVALLIER, Farhad MESHKATI, Sanjiv NANDA, Damanjit SlNGH, Mehmet YAVUZ, Sumeeth NAGARAJA, Yan ZHOU
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Publication number: 20120258746Abstract: Methods and apparatuses are provided that include adaptively configuring a rise-over-thermal (RoT) threshold at a base station to improve communications with one or more devices while mitigating interference to one or more other base stations. A potential device pathloss to the macrocell can be computed based on a measured pathloss thereto applied with a coverage area of the low power base station to emulate a worst-case device, one or more received measurement reports, and/or the like. The RoT threshold can be computed based at least in part on the pathloss and/or a maximum interference level at the macrocell. In addition, the RoT threshold can be adapted based on a reverse link attenuation level.Type: ApplicationFiled: September 27, 2011Publication date: October 11, 2012Applicant: QUALCOMM IncorporatedInventors: Yeliz TOKGOZ, Mehmet Yavuz, Farhad Meshkati
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Publication number: 20120252521Abstract: A power calibration scheme adjusts power levels of network of femtocells based on macro signals seen at different points in and around a coverage area and based on the mutual positions of the femtocells (e.g., based on femtocell signals seen at these points). The power calibration scheme thus facilitates a good balance between providing a desired level of coverage and mitigation of interference to nearby macrocells and femtocells.Type: ApplicationFiled: September 22, 2011Publication date: October 4, 2012Applicant: QUALCOMM IncorporatedInventors: Sumeeth Nagaraja, Farhad Meshkati, Mehmet Yavuz, Suhas Mitra, Varun Khaitan, Vansh Pal Singh Makh, Chirag Sureshbhai Patel, Yeliz Tokgoz, Cong Shen
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Publication number: 20120252453Abstract: A power calibration scheme adjusts power levels of network of femtocells based on macro signals seen at different points in and around a coverage area and based on the mutual positions of the femtocells (e.g., based on femtocell signals seen at these points). The power calibration scheme thus facilitates a good balance between providing a desired level of coverage and mitigation of interference to nearby macrocells and femtocells.Type: ApplicationFiled: September 22, 2011Publication date: October 4, 2012Applicant: QUALCOMM IncorporatedInventors: Sumeeth Nagaraja, Farhad Meshkati, Mehmet Yavuz, Suhas Mitra, Varun Khaitan, Vansh Pal Singh Makh, Chirag Sureshbhai Patel, Yeliz Tokgoz, Cong Shen
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Publication number: 20120238279Abstract: Coordinating transmission power for small-coverage base stations deployed in a wireless communication network may comprise, for example, receiving a plurality of measurement reports corresponding to two or more base stations, determining a coordinated coverage condition for the base stations, and setting a transmission power for at least one of the base stations based on the measurement reports and the coverage condition.Type: ApplicationFiled: September 27, 2011Publication date: September 20, 2012Applicant: QUALCOMM IncorporatedInventors: Liwen YU, Farhad Meshkati, Mehmet Yavuz, Sumeeth Nagaraja, Yi Jiang, Varun Khaitan, Yeliz Tokgoz
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Patent number: 8271014Abstract: A small base node such as a Home Base Node (HNB), or femto cell, may reduce its transmit power in order to prevent co-channel or adjacent channel interference, or to limit its coverage area. Once the power is set, the HNB signal to a served Home User Equipment (HUE) its transmit Common Pilot Channel (CPICH) transmit power for accurate path loss estimation. When this power is outside of the permissible range, the HNB adjusts other parameters (such as Random Access Channel (RACH) constant value) to compensate for the error in signaled CPICH power, and thus compensate in that process the error in determining path loss. Similarly, if the uplink sensitivity is adjusted, to prevent interference, parameters would also be adjusted and signaled to the HUE to reflect the link imbalance.Type: GrantFiled: August 6, 2009Date of Patent: September 18, 2012Assignee: QUALCOMM IncorporatedInventors: Aziz Gholmieh, Farhad Meshkati, Mehmet Yavuz, Siddharth Mohan, Christophe Chevallier
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Publication number: 20120142392Abstract: Transmit power for an access point is controlled based on information received by the access point. For example, an access point may employ one or more algorithms that use messages received from nearby access terminals to maintain an acceptable tradeoff between providing an adequate coverage area for access point transmissions and mitigating interference that these transmissions cause at nearby access terminals. Here, the access point may employ a network listen-based algorithm upon initialization of the access terminal to provide preliminary transmit power control until sufficient information is collected for another transmit power control algorithm (e.g., an access terminal assisted algorithm). Also, the access terminal may employ an active access terminal protection scheme to mitigate interference the access point may otherwise cause to a nearby access terminal that is in active communication with another access point.Type: ApplicationFiled: February 10, 2011Publication date: June 7, 2012Applicant: QUALCOMM INCORPORATEDInventors: Chirag Sureshbhai Patel, Mehmet Yavuz, Leonard Henry Grokop, Vinay Chande, Sanjiv Nanda, Farhad Meshkati, Sumeeth Nagaraja
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Publication number: 20120122492Abstract: Techniques are described herein for updating proximity information associated with a femtocell in a wireless communication system. An example of a method described herein includes identifying a location within a wireless communication network, associating the location with a femtocell for which proximity information relating to position of the femtocell is maintained, performing at least one search for the femtocell, and updating the proximity information maintained for the femtocell based on results of the at least one search. Another example of a method described herein includes obtaining a report of proximity information relating to a femtocell, identifying one or more network devices for which the proximity information is relevant, and communicating proximity information update signaling to the one or more network devices.Type: ApplicationFiled: May 12, 2011Publication date: May 17, 2012Applicant: QUALCOMM IncorporatedInventors: Yan Zhou, Damanjit Singh, Farhad Meshkati, Mehmet Yavuz
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Publication number: 20120124088Abstract: An apparatus and method for mobile search using search triggers including establishing a search state for a mobile search; defining a search scheduler based on the search state; determining to collect a search trigger for the search scheduler based on the search state; updating the search state using the collected search trigger and in accordance with the search scheduler; and performing a search for a search type based on the updated search state and in accordance with the search scheduler.Type: ApplicationFiled: May 13, 2011Publication date: May 17, 2012Applicant: QUALCOMM INCORPORATEDInventors: Farhad Meshkati, Gavin Bernard Horn, Mehmet Yavuz, Sanjiv Nanda, Peter Hans Rauber, Jen Mei Chen
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Publication number: 20120124263Abstract: Grant channel resources are allocated based on the number of access terminals that use different types of transmission time intervals (TTIs) for data transmissions. For example, if the number of access terminals using a first type of TTI exceeds the number of access terminals using a second type of TTI, more grant channel resources are allocated to the access terminals that use the first type of TTI.Type: ApplicationFiled: May 12, 2011Publication date: May 17, 2012Applicant: QUALCOMM IncorporatedInventors: Yan Zhou, Ian Jeong, Farhad Meshkati, Mehmet Yavuz
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Publication number: 20120115488Abstract: An access point transmits signals (e.g., a cell reselection beacon) on a carrier frequency according to a multi-power level transmission pattern. Signals are transmitted at a high power level for a first defined period of time (e.g., between 4-7 milliseconds) and at a low power level for a second defined period of time (e.g., between 58-65 milliseconds).Type: ApplicationFiled: May 5, 2011Publication date: May 10, 2012Applicant: QUALCOMM INCORPORATEDInventors: Yi Jiang, Farhad Meshkati, Mehmet Yavuz, Sanjiv Nanda
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Publication number: 20120094660Abstract: Methods and apparatuses are provided that facilitate providing access point measurements to restricted access points. Restricted access points can lessen restrictions to allow devices to register with the restricted access point for providing measurements thereto. Additionally or alternatively, access point measurements can be provided to a minimization of drive tests (MDT) server for providing to the restricted access points. Thus, restricted access points can obtain the access point measurements for performing enhanced interference management or other functionality based at least in part on the measurements.Type: ApplicationFiled: April 11, 2011Publication date: April 19, 2012Applicant: QUALCOMM INCORPORATEDInventors: Andrei Dragos Radulescu, Mehmet Yavuz, Damanjit Singh, Farhad Meshkati, Jen Mei Chen, Gavin Bernard Horn, Sanjiv Nanda, Peerapol Tinnakornsrisuphap, Vinay Chande
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Publication number: 20120046026Abstract: Transmit power for an access point is controlled based on measurement reports received by the access point from one or more access terminals that are not currently being served by the access point. In some aspects, transmit power is controlled based on the number of received messages that correspond to a particular event. In some aspects, transmit power is controlled based on the contents of the received messages. For example, the access point may use signal strength information included in the messages to determine a level of transmit power that mitigates interference at a defined subset of reporting access terminals.Type: ApplicationFiled: February 18, 2011Publication date: February 23, 2012Applicant: QUALCOMM INCORPORATEDInventors: Vinay Chande, Farhad Meshkati, Chirag Sureshbhai Patel, Mehmet Yavuz, Sumeeth Nagaraja
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Publication number: 20120046063Abstract: Transmit power for an access point is controlled based on measurement reports received by the access point from one or more access terminals that are not currently being served by the access point. In some aspects, transmit power is controlled based on the number of received messages that correspond to a particular event. In some aspects, transmit power is controlled based on the contents of the received messages. For example, the access point may use signal strength information included in the messages to determine a level of transmit power that mitigates interference at a defined subset of reporting access terminals.Type: ApplicationFiled: February 18, 2011Publication date: February 23, 2012Applicant: QUALCOMM INCORPORATEDInventors: Vinay Chande, Farhad Meshkati, Chirag Sureshbhai Patel, Mehmet Yavuz, Sumeeth Nagaraja
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Publication number: 20120039265Abstract: Transmit power for an access point is controlled based on information received by the access point. For example, an access point may employ one or more algorithms that use messages received from nearby access terminals to maintain an acceptable tradeoff between providing an adequate coverage area for access point transmissions and mitigating interference that these transmissions cause at nearby access terminals. Here, the access point may employ a network listen-based algorithm upon initialization of the access terminal to provide preliminary transmit power control until sufficient information is collected for another transmit power control algorithm (e.g., an access terminal assisted algorithm). Also, the access terminal may employ an active access terminal protection scheme to mitigate interference the access point may otherwise cause to a nearby access terminal that is in active communication with another access point.Type: ApplicationFiled: February 10, 2011Publication date: February 16, 2012Applicant: QUALCOMM IncorporatedInventors: Chirag Sureshbhai Patel, Mehmet Yavuz, Leonard Henry Grokop, Vinay Chande, Sanjiv Nanda, Farhad Meshkati, Sumeeth Nagaraja
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METHOD AND APPARATUS FOR HANDOVER OF DEVICE TO MITIGATE UPLINK INTERFERENCE IN FEMTOCELL DEPLOYMENTS
Publication number: 20120021788Abstract: Methods and apparatuses are provided for determining whether to handover a device to mitigate uplink interference while achieving acceptable uplink service quality in a wireless network. One or more parameters related to a device can be evaluated to determine whether to handover the device, such as a number of transmission power reports received from the device over a period of time, a frame error rate, setpoint, or power control commands related to the uplink of the device, a received pilot signal strength at the device, an uplink throughput or buffer size at the device, etc., from which transmit power information of the device can be inferred for determining whether the device potentially interferes with access points or devices. Based on the one or more parameters, an access point can determine whether handing over the device may mitigate such uplink interference while ensuring uplink service quality, and accordingly handover the device.Type: ApplicationFiled: July 25, 2011Publication date: January 26, 2012Applicant: QUALCOMM IncorporatedInventors: Mehmet YAVUZ, Farhad MESHKATI, Sumeeth NAGARAJA, Yan ZHOU, Vinay CHANDE -
Publication number: 20110319122Abstract: Methods and apparatuses are provided for determining a transmission power cap for one or more devices based at least in part on pathloss measurements to one or more access points received from the one or more devices. A common transmission power cap can also be computed for assigning to devices communicating with an access point, and the transmission power cap for a given device can be adjusted when the transmission power is at or a threshold level from the common power cap to conserve signaling in the wireless network. Adjustment of the transmission power cap can additionally or alternatively be based on a received power at an access point related to signals from the device, an interference report from one or more access points, and/or the like.Type: ApplicationFiled: June 28, 2011Publication date: December 29, 2011Applicant: QUALCOMM IncorporatedInventors: Yan ZHOU, Farhad Meshkati, Vinay Chande, Mehmet Yavuz, Yi Jiang
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Publication number: 20110319084Abstract: Methods and apparatuses are provided for mitigating interference among access points, and/or devices communicating therewith, in unplanned network deployments. Based on determining that one or more served devices potentially interfere with one or more access points, an inter-frequency handover (IFHO) threshold or data rate can be adjusted for the device to cause IFHO or reduce occurrence of interference, and/or a coverage area can be modified so the device can communicate with one or more other access points to mitigate potential interference. Based on determining interference from one or more devices served by other access points, an access point can switch operating modes to a hybrid or open access point to allow the one or more devices to handover to the access point, and/or can boost downlink transmit power to cause the one or more devices to perform IFHO from the other access points to mitigate potential interference.Type: ApplicationFiled: June 28, 2011Publication date: December 29, 2011Applicant: QUALCOMM IncorporatedInventors: Farhad MESHKATI, Yan ZHOU, Vinay CHANDE, Mehmet YAVUZ
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Publication number: 20110319088Abstract: Methods and apparatuses are provided for determining one or more parameters of an access point that can be set or adjusted to mitigate interference to other access points. A rise-over-thermal (RoT) threshold can be set at an access point based on one or more parameters, such as pathloss measurements, location of the access point, etc., such that interference from devices communicating with the access point can be mitigated. In addition, a noise floor, RoT threshold, etc., can be adjusted based on determining a transmit power difference, out-of-cell interference, and/or similar measurements.Type: ApplicationFiled: June 28, 2011Publication date: December 29, 2011Applicant: QUALCOMM IncorporatedInventors: Yan ZHOU, Farhad MESHKATI, Vinay CHANDE, Mehmet YAVUZ