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).

  • Publication number: 20150117206
    Abstract: The present disclosure presents a method and an apparatus for passive estimation mechanism for backhaul management at a small cell base station. For example, the method may include determining, at the small cell base station, whether a time slot utilization of a flow at a user equipment (UE) in communication with the small cell base station is above a first threshold, wherein a plurality of time slots are associated with the flow, determining whether an average throughput of the flow is below a second threshold in response to determining that the time slot utilization is above the first threshold, and identifying that the flow is not satisfied in response to determining that the average throughput of the flow is below the second threshold. As such, passive estimation mechanism for backhaul management at a small cell base station may be achieved.
    Type: Application
    Filed: October 27, 2014
    Publication date: April 30, 2015
    Inventors: Andrei Dragos Radulescu, Farhad Meshkati, Rajat Prakash, Rashmin Ranjitsinh Anjaria, Sumeeth Nagaraja, Tao Chen, Vinod Viswanatha Menon, Sanjay Sridhar Kamath
  • Publication number: 20150119042
    Abstract: The present disclosure presents a method and an apparatus for off-loading user equipment (UE) from a small cell base station. For example, the method may include identifying a first and a second set of UEs from a plurality of UEs at a small cell base station, prioritizing the first and the second set of UEs, and off-loading one or more UEs from the first or the second set of UEs based at least on the prioritization. As such, off-loading of UEs from a small cell base station may be achieved.
    Type: Application
    Filed: October 27, 2014
    Publication date: April 30, 2015
    Inventors: Andrei Dragos RADULESCU, Farhad MESHKATI, Rajat PRAKASH, Rashmin Ranjitsinh ANJARIA, Sumeeth NAGARAJA, Tao CHEN, Vinod Viswanatha MENON, Sanjay Sridhar KAMATH
  • Publication number: 20150119046
    Abstract: The present disclosure presents a method and an apparatus for backhaul management at a small cell base station. For example, the method may include receiving an indication from a radio resource management (RRM) framework of a small cell base station, wherein the indication received from the RRM framework is related to a coverage problem at a user equipment (UE), and wherein the UE is in communication with the small cell, and modifying a backhaul estimation mechanism at the small cell base station for the UE based on the indication received from the RRM framework of the small cell base station. As such, backhaul management at a small cell base station may be achieved.
    Type: Application
    Filed: October 27, 2014
    Publication date: April 30, 2015
    Inventors: Andrei Dragos RADULESCU, Rajat Prakash, Farhad Meshkati, Sumeeth Nagaraja, Rashmin Ranjitsinh Anjaria, Tao Chen, Vinod Viswanatha Menon, Sanjay Sridhar Kamath, Damanjit Singh
  • Publication number: 20150099520
    Abstract: 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: Application
    Filed: December 11, 2014
    Publication date: April 9, 2015
    Inventors: Sharad Deepak Sambhwani, Mario Mark Scipione, Rohit Kapoor, Andrei Dragos Radulescu
  • Patent number: 8989107
    Abstract: 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: Grant
    Filed: April 29, 2010
    Date of Patent: March 24, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Sharad Deepak Sambhwani, Andrei Dragos Radulescu, Rohit Kapoor, Bibhu Prasad Mohanty, Mario Mark Scipione, Danlu Zhang, Aziz Gholmieh
  • Publication number: 20150063136
    Abstract: 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: Application
    Filed: February 11, 2014
    Publication date: March 5, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Cong SHEN, Andrei Dragos RADULESCU, Rajat PRAKASH, Farhad MESHKATI
  • Publication number: 20150063137
    Abstract: 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: Application
    Filed: February 11, 2014
    Publication date: March 5, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Cong SHEN, Andrei Dragos Radulescu, Rajat Prakash, Farhad Meshkati
  • Publication number: 20150029999
    Abstract: 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: Application
    Filed: July 16, 2014
    Publication date: January 29, 2015
    Inventors: Gavin Bernard Horn, Andrei Dragos Radulescu, Ozcan Ozturk
  • Patent number: 8942209
    Abstract: 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: Grant
    Filed: August 11, 2010
    Date of Patent: January 27, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Sharad Deepak Sambhwani, Mario Mark Scipione, Rohit Kapoor, Andrei Dragos Radulescu
  • Publication number: 20150018042
    Abstract: 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: Application
    Filed: May 19, 2014
    Publication date: January 15, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Andrei Dragos Radulescu, Mehmet Yavuz, Damanjit Singh, Farhad Meshkati, Jen Mei Chen, Gavin Bernard Horn, Sanjiv Nanda, Peerapol Tinnakornsrisuphap, Vinay Chande
  • Publication number: 20140328314
    Abstract: 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: Application
    Filed: July 15, 2014
    Publication date: November 6, 2014
    Inventors: Ravi Palanki, Andrei Dragos Radulescu
  • Patent number: 8873440
    Abstract: 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: Grant
    Filed: March 28, 2011
    Date of Patent: October 28, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Damanjit Singh, Andrei Dragos Radulescu
  • Publication number: 20140274029
    Abstract: 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: Application
    Filed: March 13, 2013
    Publication date: September 18, 2014
    Applicant: QUALCOMM INCORPORATED
    Inventors: Andrei Dragos RADULESCU, Rajat PRAKASH
  • Publication number: 20140269547
    Abstract: 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: Application
    Filed: December 12, 2013
    Publication date: September 18, 2014
    Applicant: QUALCOMM Incorporaed
    Inventors: Nachiappan VALLIAPPAN, Christophe CHEVALLIER, Andrei Dragos RADULESCU, Cong SHEN
  • Patent number: 8731550
    Abstract: 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: Grant
    Filed: April 11, 2011
    Date of Patent: May 20, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Andrei Dragos Radulescu, Mehmet Yavuz, Damanjit Singh, Farhad Meshkati, Jen Mei Chen, Gavin Bernard Horn, Sanjiv Nanda, Peerapol Tinnakornsrisuphap, Vinay Chande, Sumeeth Nagaraja
  • Publication number: 20140135021
    Abstract: 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: Application
    Filed: January 20, 2014
    Publication date: May 15, 2014
    Inventors: Andrei Dragos Radulescu, Peter Hans Rauber, Sanjiv Nanda, Damanjit Singh, Jen M. Chen, Farhad Meshkati
  • Publication number: 20140112306
    Abstract: 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: Application
    Filed: February 27, 2013
    Publication date: April 24, 2014
    Applicant: QUALCOMM Incorporated
    Inventors: Yan ZHOU, Andrei Dragos Radulescu, Peerapol Tinnakornsrisuphap, Jay Kumar Sundararajan, Arnaud Meylan, Mehmet Yavuz
  • Publication number: 20140112169
    Abstract: 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: Application
    Filed: February 27, 2013
    Publication date: April 24, 2014
    Applicant: QUALCOMM Incorporated
    Inventors: Yan ZHOU, Andrei Dragos Radulescu, Peerapol Tinnakornsrisuphap, Jay Kumar Sundararajan, Arnaud Meylan, Mehmet Yavuz
  • Publication number: 20140113631
    Abstract: 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: Application
    Filed: March 5, 2013
    Publication date: April 24, 2014
    Applicant: QUALCOMM Incorporated
    Inventors: Yan ZHOU, Andrei Dragos Radulescu, Peerapol Tinnakornsrisuphap, Jay Kumar Sundararajan, Arnaud Meylan, Mehmet Yavuz
  • Publication number: 20140106758
    Abstract: 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: Application
    Filed: October 2, 2013
    Publication date: April 17, 2014
    Applicant: QUALCOMM Incorporated
    Inventors: Sumeeth Nagaraja, Mehmet Yavuz, Farhad Meshkati, Andrei Dragos Radulescu, Christophe Chevalier