Patents by Inventor Andrei Dragos Radulescu
Andrei Dragos Radulescu 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: 8989107Abstract: The present patent application discloses a method and apparatus for activating or de-activating a secondary carrier, comprising informing a serving radio network controller when a secondary carrier was activated or de-activated, receiving a confirmation from the serving radio network controller that non-serving NodeB cells have achieved synchronization, and scheduling a UE upon receiving confirmation. In another example, the present patent application discloses a method and apparatus for de-activating a secondary carrier, comprising controlling de-activation of the secondary carrier using high-speed shared control channel orders, receiving acknowledgement of said high-speed shared control channel orders, and informing a serving radio network controller when the secondary carrier was de-activated.Type: GrantFiled: April 29, 2010Date of Patent: March 24, 2015Assignee: QUALCOMM IncorporatedInventors: Sharad Deepak Sambhwani, Andrei Dragos Radulescu, Rohit Kapoor, Bibhu Prasad Mohanty, Mario Mark Scipione, Danlu Zhang, Aziz Gholmieh
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Publication number: 20150063136Abstract: Methods and apparatus for communication at a network entity comprise sending a measurement configuration message to a user equipment (UE) to configure the UE to perform one or more measurements during a specified measurement period. Additionally, the methods and apparatus comprise suspending, at the network entity, transmission of at least one configuration parameter to the UE during the specified measurement period, wherein the network entity is the serving network entity. Moreover, the methods and apparatus comprise receiving at least one measurement report message from the UE after the specified measurement period.Type: ApplicationFiled: February 11, 2014Publication date: March 5, 2015Applicant: QUALCOMM IncorporatedInventors: Cong SHEN, Andrei Dragos RADULESCU, Rajat PRAKASH, Farhad MESHKATI
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Publication number: 20150063137Abstract: Methods and apparatus for communication at a network entity comprise receiving one or more technology layer measurements during a measurement period. The methods and apparatus further comprise determining that a first subset of the one or more technology layer measurements satisfies an adequate user equipment (UE) communication condition. In addition, the methods and apparatus comprise determining that a second subset of the one or more technology layer measurements satisfies at least one measurement threshold value. Moreover, the methods and apparatus comprise identifying a network entity conflict when the first subset of the one or more technology layer measurements satisfies the adequate UE communication condition and the second subset of the one or more technology layer measurements satisfies the at least one measurement threshold value.Type: ApplicationFiled: February 11, 2014Publication date: March 5, 2015Applicant: QUALCOMM IncorporatedInventors: Cong SHEN, Andrei Dragos Radulescu, Rajat Prakash, Farhad Meshkati
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Publication number: 20150029999Abstract: Techniques are described for selected internet protocol traffic offload (SIPTO) support at an assisting eNodeB. A connection may be established between a first eNodeB and a UE, and it may be determined whether a connection exists or is pending between the UE and a second eNodeB. A message may be transmitted to a mobility management entity (MME), the message associating a network address of the second eNodeB with SIPTO connectivity for the UE.Type: ApplicationFiled: July 16, 2014Publication date: January 29, 2015Inventors: Gavin Bernard Horn, Andrei Dragos Radulescu, Ozcan Ozturk
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Patent number: 8942209Abstract: A system and method enable handover from a DC-HSUPA-capable node in a cellular wireless network to a non-DC-HSUPA-capable node. According to various aspects of the present disclosure, a handover may implement a legacy serving cell change procedure or an enhanced serving cell change procedure. In either case, signaling from the network to user equipment includes information to enable the user equipment to change or remove an Active Set when undergoing a handover from a cell with two uplink carriers and accordingly two Active Sets, to a cell with one uplink carrier and accordingly one Active Set.Type: GrantFiled: August 11, 2010Date of Patent: January 27, 2015Assignee: QUALCOMM IncorporatedInventors: Sharad Deepak Sambhwani, Mario Mark Scipione, Rohit Kapoor, Andrei Dragos Radulescu
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Publication number: 20150018042Abstract: 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: May 19, 2014Publication date: January 15, 2015Applicant: 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: 20140328314Abstract: Techniques for transmitting power decision pilots are described. A transmitter (e.g., a base station or a UE) may transmit a power decision pilot to indicate a transmit power level that it will use on subsequent time-frequency resources. In one design, the transmitter may determine a set of time-frequency resources to use for transmitting the power decision pilot, determine the transmit power level for the power decision pilot based on the transmit power level to use for data transmission, and transmit the power decision pilot on the set of time-frequency resources to indicate the transmit power level to use for data transmission on the subsequent time-frequency resources. A receiver (e.g., a UE or a base station) may receive power decision pilots from a set of transmitters and may estimate channel quality that the receiver can expect on the subsequent time-frequency resources based on the power decision pilots.Type: ApplicationFiled: July 15, 2014Publication date: November 6, 2014Inventors: Ravi Palanki, Andrei Dragos Radulescu
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Patent number: 8873440Abstract: To facilitate inbound mobility for an access terminal, different virtual active sets are employed for different types of access points or cells (e.g., HNBs versus macro cells). In addition, different lists of permitted cells are maintained for these different types of access points or cells. Also, a frequency quality estimate for inter-frequency event triggering may be based on measurement of a single cell present in a virtual active set (e.g., a dedicated HNB virtual active set).Type: GrantFiled: March 28, 2011Date of Patent: October 28, 2014Assignee: QUALCOMM IncorporatedInventors: Damanjit Singh, Andrei Dragos Radulescu
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Publication number: 20140269547Abstract: A base station includes a base unit and a plurality of remote antenna units (RAUs). Each of the RAUs includes a physical layer circuit (PHY). The PHYs are configured to each use the same physical layer identifier, but each PHY includes its own hardware for supporting users in the coverage area of that PHY. The base unit controls resource allocation for the RAUs to increase the capacity of the base station and/or reduce interference between PHYs.Type: ApplicationFiled: December 12, 2013Publication date: September 18, 2014Applicant: QUALCOMM IncorporaedInventors: Nachiappan VALLIAPPAN, Christophe CHEVALLIER, Andrei Dragos RADULESCU, Cong SHEN
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Publication number: 20140274029Abstract: Detecting local cell identifier collision by a base station may be achieved by receiving, at a first base station from a user device, a dedicated identifier associated with a second base station. The dedicated identifier may include or otherwise map to a user device identifier associated with the second base station and a local cell identifier associated with the second base station. Based on the dedicated identifier, it may be determined, at the first base station, that there is a local cell identifier collision between the first base station and the second base station.Type: ApplicationFiled: March 13, 2013Publication date: September 18, 2014Applicant: QUALCOMM INCORPORATEDInventors: Andrei Dragos RADULESCU, Rajat PRAKASH
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Patent number: 8731550Abstract: 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: GrantFiled: April 11, 2011Date of Patent: May 20, 2014Assignee: QUALCOMM IncorporatedInventors: Andrei Dragos Radulescu, Mehmet Yavuz, Damanjit Singh, Farhad Meshkati, Jen Mei Chen, Gavin Bernard Horn, Sanjiv Nanda, Peerapol Tinnakornsrisuphap, Vinay Chande, Sumeeth Nagaraja
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Publication number: 20140135021Abstract: According to some wireless network standards the size of a neighbor cell list is restricted to a maximum size. The limited size of a neighbor cell list may not reflect the realities of a wireless network deployment, especially for deployments including numerous femto cells clustered in close proximity. Accordingly, as the concentration of macro cells and/or femto cells in an area increases, there lies a challenge to identify and communicate neighbor lists to user devices that reflect the arrangement of a particular portion of the deployment and the needs of the user devices. Various systems, methods and apparatus described herein are configured to provide a user device or a group of user devices a neighbor cell list that includes neighbor cell identifiers chosen from a candidate list.Type: ApplicationFiled: January 20, 2014Publication date: May 15, 2014Inventors: Andrei Dragos Radulescu, Peter Hans Rauber, Sanjiv Nanda, Damanjit Singh, Jen M. Chen, Farhad Meshkati
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Publication number: 20140112169Abstract: Techniques for admitting user equipments (UEs) to wireless systems are disclosed. UEs may be assigned priorities for admission to a given wireless system. The UEs may then be admitted to the wireless system based on the priorities of the UEs for the wireless system. In one design, a UE may be identified for admission to a first wireless system among a plurality of wireless systems. Attributes (e.g., capabilities) of the UE for the plurality of wireless systems may be determined. An admission priority of the UE for the first wireless system may be determined based on the attributes of the UE for the plurality of wireless systems. Whether to admit the UE to the first wireless system may be determined based on the admission priority of the UE for the first wireless system and possibly the current resource usage of the first wireless system.Type: ApplicationFiled: February 27, 2013Publication date: April 24, 2014Applicant: QUALCOMM IncorporatedInventors: Yan ZHOU, Andrei Dragos Radulescu, Peerapol Tinnakornsrisuphap, Jay Kumar Sundararajan, Arnaud Meylan, Mehmet Yavuz
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Publication number: 20140113631Abstract: Techniques for switching user equipments (UEs) between wireless systems are disclosed. A UE may be located within the coverage of a plurality of wireless systems and may communicate with a first wireless system among the plurality of wireless systems. The plurality of wireless systems may include a WLAN system and a cellular system and/or may be part of a small cell. Metrics of the UE for the plurality of wireless systems may be determined. The metrics may be related to one or more of efficiency, service charge, service subscription, application type, or buffer size. Whether to switch the UE from the first wireless system to another wireless system may be determined based on the metrics. In one design, switching priorities of the UE for the plurality of wireless systems may be determined based on the metrics and may be used to determine whether to switch the UE.Type: ApplicationFiled: March 5, 2013Publication date: April 24, 2014Applicant: QUALCOMM IncorporatedInventors: Yan ZHOU, Andrei Dragos Radulescu, Peerapol Tinnakornsrisuphap, Jay Kumar Sundararajan, Arnaud Meylan, Mehmet Yavuz
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Publication number: 20140112306Abstract: Techniques for prioritizing user equipments (UEs) for switching between wireless systems are disclosed. The wireless systems may be part of a small cell and may include a WLAN system and a cellular system. In one design, a network entity (e.g., the small cell) may identify a plurality of UEs communicating with a first wireless system. The first wireless system may be one of a plurality of wireless systems providing communication coverage for the UEs. The network entity may determine priorities of the UEs for switching from the first wireless system to a second wireless system. The network entity may then select at least one UE among the plurality of UEs to switch from the first wireless system to the second wireless system based on the priorities of the UEs.Type: ApplicationFiled: February 27, 2013Publication date: April 24, 2014Applicant: QUALCOMM IncorporatedInventors: Yan ZHOU, Andrei Dragos Radulescu, Peerapol Tinnakornsrisuphap, Jay Kumar Sundararajan, Arnaud Meylan, Mehmet Yavuz
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Publication number: 20140106758Abstract: Methods, apparatuses, and computer program products are disclosed for facilitating a beacon-assisted handover from a macro network to a femto cell during an active call. A femto cell management system assigns a unique identifier to a femto cell, which the femto cell utilizes to broadcast a beacon at a frequency different than the operating frequency of the femto cell. A wireless terminal receives a control message from the macro network directing the wireless terminal to scan particular frequencies. The wireless terminal subsequently provides a report to the macro network identifying attributes ascertained from the scan, which includes attributes associated with the beacon. The macro network then performs a handover from the macro network to the femto cell as a function of the attributes.Type: ApplicationFiled: October 2, 2013Publication date: April 17, 2014Applicant: QUALCOMM IncorporatedInventors: Sumeeth Nagaraja, Mehmet Yavuz, Farhad Meshkati, Andrei Dragos Radulescu, Christophe Chevalier
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Patent number: 8639243Abstract: According to some wireless network standards the size of a neighbor cell list is restricted to a maximum size. The limited size of a neighbor cell list may not reflect the realities of a wireless network deployment, especially for deployments including numerous femto cells clustered in close proximity. Accordingly, as the concentration of macro cells and/or femto cells in an area increases, there lies a challenge to identify and communicate neighbor lists to user devices that reflect the arrangement of a particular portion of the deployment and the needs of the user devices. Various systems, methods and apparatus described herein are configured to provide a user device or a group of user devices a neighbor cell list that includes neighbor cell identifiers chosen from a candidate list.Type: GrantFiled: August 20, 2010Date of Patent: January 28, 2014Assignee: QUALCOMM IncorporatedInventors: Andrei Dragos Radulescu, Peter Hans Rauber, Sanjiv Nanda, Damanjit Singh, Jen M. Chen, Farhad Meshkati
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Patent number: 8634833Abstract: A method for macrocell-to-femtocell hand-in includes: communicating a non-directed proximity request message from a femto-proxy system over an out-of-band (OOB) channel, the proximity request message configured to be received by any of a plurality of access terminals when in proximity to the femto-proxy system, the femto-proxy system comprising an OOB radio and a femtocell communicatively coupled with a core network element; receiving a proximity response message over the OOB link from an access terminal of the plurality of access terminals in response to the proximity request message, the proximity response message indicating that the access terminal is in proximity to the femto-proxy system; communicating a presence indication from the femtocell to a core network element indicating proximity of the access terminal to the femtocell; and facilitating active hand-in of the access terminal from a source macrocell of a macro network to the femtocell.Type: GrantFiled: January 10, 2012Date of Patent: January 21, 2014Assignee: QUALCOMM IncorporatedInventors: Soumya Das, Samir Salib Soliman, Jen Mei Chen, Andrei Dragos Radulescu, Damanjit Singh
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Publication number: 20130303224Abstract: The present disclosure presents example methods and apparatuses for improved cell searching in a wireless communications environment. For example, the disclosure presents example methods of wireless communication in a multiflow environment, which may include establishing a first flow between a serving radio network controller (S-RNC) and a first network entity, wherein the S-RNC controls the first network entity. Such example methods may also include establishing a second flow between the S-RNC and a second network entity. Furthermore, such example methods may include transmitting data to a user equipment (UE) via both the first flow and the second flow.Type: ApplicationFiled: February 20, 2013Publication date: November 14, 2013Applicant: QUALCOMM IncorporatedInventors: Sharad Deepak SAMBHWANI, Andrei Dragos Radulescu, Rohit Kapoor, Francesco Pica, Ravi Agarwal
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Publication number: 20130294264Abstract: A method, an apparatus, and a computer program product for wireless communication are provided in connection with classifying devices that communicate with a femto node for providing services thereto. In one example, a node is equipped to monitor and/or receive one or more parameters communicated by a device, assign a classification to the device related to a frequency of using the femto node based in part on the one or more parameters. In an aspect, the node is equipped to provide services to the device based on the classification. In another aspect, the node is equipped to provide the classification to one or more femto nodes, including the femto node, for providing services to the device.Type: ApplicationFiled: March 13, 2013Publication date: November 7, 2013Applicant: QUALCOMM INCORPORATEDInventors: Sumeeth Nagaraja, Yeliz Tokgoz, Mehmet Yavuz, Damanjit Singh, Andrei Dragos Radulescu, Chirag Sureshbhai Patel