Patents by Inventor Jelena Damnjanovic

Jelena Damnjanovic 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).

  • Patent number: 10334447
    Abstract: Methods, systems, and devices for wireless communication are described. Discontinuous reception (DRX) operation may be configured differently on enhanced component carriers (eCCs) than on other component carriers, including a primary cell (PCell). In some cases, a user equipment (UE) may be configured with several different eCC DRX modes. An eCC DRX configuration may, for example, be coordinated with downlink (DL) transmission time interval (TTI) scheduling so each DRX ON duration may correspond to a DL burst duration of the corresponding eCC. The eCC DRX ON durations may also be scheduled according to hybrid automatic repeat request (HARD) process scheduling. In some examples, eCC DRX ON durations may be based on listen-before-talk (LBT) procedures. In some cases, eCC DRX ON durations may be configured to contain an uplink (UL) burst to enable channel state information (CSI) reporting. The eCC DRX may also be configured to minimize interruption of the PCell.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: June 25, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Madhavan Srinivasan Vajapeyam, Jelena Damnjanovic, Aleksandar Damnjanovic, Tao Luo, Jing Sun, Taesang Yoo, Yongbin Wei
  • Publication number: 20190174532
    Abstract: Methods, systems, and devices for wireless communication are described. A base station may employ a multiplexing configuration based on latency and efficiency considerations. The base station may transmit a resource grant, a signal indicating the length of a downlink (DL) transmission time interval (TTI), and a signal indicating the length of a subsequent uplink (UL) TTI to one or more user equipment (UEs). The base station may dynamically select a new multiplexing configuration by, for example, setting the length of an UL TTI to zero or assigning multiple UEs resources in the same DL TTI. Latency may also be reduced by employing block feedback, such as block hybrid automatic repeat request (HARQ) feedback. A UE may determine and transmit HARQ feedback for each transport block (TB) of a set of TBs, which may be based on a time duration of a downlink TTI.
    Type: Application
    Filed: January 11, 2019
    Publication date: June 6, 2019
    Inventors: Jelena Damnjanovic, Taesang Yoo, Siddhartha Mallik, Aleksandar Damnjanovic, Arumugam Chendamarai Kannan, Madhavan Srinivasan Vajapeyam, Durga Prasad Malladi, Yongbin Wei, Tao Luo
  • Patent number: 10313916
    Abstract: Methods, systems, and devices are described for decreasing user plane latency in a wireless communication system. This may include routing a portion of bearer traffic to or from a UE through a local or serving gateway, or within or between base stations, rather than via the core network. In some examples, techniques for selected internet protocol flow ultra-low latency (SIPFULL) for systems in which users may have subscribed to enhanced services may be employed. The network may, for instance, authorize SIPFULL functionalities for UEs per access point name (APN) based on individual services subscribed by the UE to improve overall quality of service (QoS). In some examples, a UEs latency requirements or SIPFULL authorizations may affect mobility operations.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: June 4, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Jun Wang, Ozcan Ozturk, Miguel Griot, Ravindra Manohar Patwardhan, Onkar Jayant Dabeer, Madhavan Srinivasan Vajapeyam, Jelena Damnjanovic, Aleksandar Damnjanovic, Taesang Yoo, Yongbin Wei, Durga Prasad Malladi
  • Patent number: 10306695
    Abstract: Certain aspects of the present disclosure provide procedures for managing secondary eNB (SeNB) radio link failure (S-RLF) in dual connectivity scenarios. A user equipment (UE) may establish communication with a Master Evolved Node B (MeNB) and a Secondary eNB (SeNB). The UE may detect a Radio Link Failure (RLF) of a connection with the SeNB and may transmit an indication of the RLF to the MeNB, in response to the detection. The MeNB may take at least one action to manage the RLF, in response to receiving the indication of the RLF, for example, including transmitting a reconfiguration command to the UE. The SeNB may also detect the RLF and transmit an indication of the RLF to the MeNB over a backhaul connection, in response to the detection.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: May 28, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Madhavan Srinivasan Vajapeyam, Gavin Bernard Horn, Jelena Damnjanovic, Peter Gaal, Aleksandar Damnjanovic
  • Patent number: 10299288
    Abstract: Systems and methodologies are described that facilitate assigning resources for an anchor carrier and an additional carrier with a grant message. The grant message communicated with an anchor carrier can include resource information a plurality of carriers. Moreover, the systems and methodologies that facilitate identifying control information for an anchor carrier and/or an additional carrier based upon an operating mode, wherein the operating mode is a legacy mode or an extended mode. Based on the operating mode, particular resources associated with control regions are monitored for control information for respective anchor carrier(s) or additional carrier(s).
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: May 21, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Jelena Damnjanovic, Juan Montojo, Sandip Sarkar, Peter Gaal, Aamod Dinkar Khandekar, Amir Farajidana
  • Patent number: 10292167
    Abstract: Uplink reporting and logical channel prioritization in multiflow operation is described. In some embodiments, uplink reporting for multiflow operation utilizes bearer level splitting where the UE associates bearers or logical channel groups (LCGs) with cells for uplink reporting. In some embodiments, uplink reporting for multiflow operation utilizes packet level splitting where the UE groups buffers for all LCGs into a common pool for uplink reporting. In packet level splitting embodiments, the UE may perform uplink reporting based on the total amount of data available for transmission in the common buffer pool or by applying scaling coefficients associated with the serving cells. Some embodiments manage mapping of logical channel payloads to uplink grants for multiflow operation.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: May 14, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Jelena Damnjanovic, Sai Yiu Duncan Ho, Madhavan Srinivasan Vajapeyam
  • Patent number: 10270579
    Abstract: Methods, systems, and devices are described for wireless communication. Wireless devices may exchange data using Medium Access Control (MAC) layer units known as transport blocks which may include a number of code blocks (CBs). A receiving device may attempt to decode each CB and send acknowledgement (ACK) and negative-acknowledgment (NACK) feedback to the transmitting device based on the whether each CB was successfully decoded. The receiving device may determine a format from two or more available formats for transmitting the ACK/NACK feedback. The format for the ACK/NACK feedback may be determined based at least in part on a number of CBs received and a number of CBs that have a NACK feedback. ACK/NACK feedback may be provided on an individual CB basis, or for bundles of CBs. The transmitting device may perform blind decoding of the received feedback to determine the ACK/NACK format and CBs that have NACK feedback.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: April 23, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Arumugam Chendamarai Kannan, Taesang Yoo, Siddhartha Mallik, Jelena Damnjanovic
  • Patent number: 10263691
    Abstract: A method and apparatus for operating a satellite access network (SAN) of a satellite communication system to schedule communications with a user terminal. In some aspects, the SAN may provision a communication frame, for the user terminal, into a number of forward-link (FL) subframes and a different number of reverse-link (RL) subframes. The SAN then transmits the FL subframes to the user terminal via a forward link of the satellite communication system, and subsequently receives the RL subframes from the user terminal via a reverse link of the satellite communication system.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: April 16, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Venkatraman Rajagopalan, Jelena Damnjanovic, Qiang Wu
  • Publication number: 20190109675
    Abstract: A user equipment (UE) communicating in a carrier aggregation (CA) or multi-connectivity operation using more than one component carrier (CC), where at least one of the CCs is enabled to use evolved interference management for traffic adaptation (eIMTA), adapts the hybrid automatic repeat request (HARQ) timing of the UE communications based on changes in the eIMTA and configurations. The HARQ timing includes HARQ acknowledgement (ACK) timing or HARQ scheduling timing.
    Type: Application
    Filed: December 10, 2018
    Publication date: April 11, 2019
    Inventors: Wanshi Chen, Jelena Damnjanovic, Peter Gaal
  • Publication number: 20190098656
    Abstract: Methods and apparatuses for managing uplink scheduling for one or more user equipment served by a network entity in a wireless communications system are presented. For instance, an example method is presented that includes generating, by the network entity, an uplink bandwidth allocation map, the uplink bandwidth allocation map defining an uplink bandwidth allocation for at least one of the one or more user equipment for at least one of a plurality of uplink transmission window lengths. In addition, the example method includes transmitting the uplink bandwidth allocation map to at least one of the one or more user equipment.
    Type: Application
    Filed: November 27, 2018
    Publication date: March 28, 2019
    Inventors: Arumugam CHENDAMARAI KANNAN, Taesang YOO, Siddhartha MALLIK, Jelena DAMNJANOVIC, Yongbin WEI, Durga Prasad MALLADI
  • Publication number: 20190098613
    Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may be configured with a carrier aggregation (CA) configuration, which may include a large number of component carriers (CCs). Some of the CCs may be designated as basis CCs, and may have a flexible control channel configuration, while other CCs may be designated as supplemental CCs with a restricted control channel configuration. The restricted control channels may have a reduced number of decoding candidates, which may reduce the complexity and increase the likelihood of successfully decoding the control channels. For example, the restricted control channels may be limited to a subset of aggregation levels, a reduced control region, or other restrictions. In some cases, the CCs may be grouped into basis CCs and supplemental CCs based on physical uplink control channel (PUCCH) groups or based on CCs that utilize enhanced physical downlink control channels (ePDCCH).
    Type: Application
    Filed: September 28, 2018
    Publication date: March 28, 2019
    Inventors: Wanshi Chen, Jelena Damnjanovic, Peter Gaal
  • Publication number: 20190090239
    Abstract: Techniques are described for preempting resource allocations to one or more UEs in the event that delay sensitive data is received. A resource allocation of a number of symbols may be granted to a first user equipment (UE) for first associated data to be transmitted. Subsequently, data may be received for a second UE that is more delay sensitive than the first data. The resource allocation to the first UE may be preempted, and resources allocated to the second UE for the second data within a variable length transmission time interval (TTI) of the resource allocation to the first UE. UEs may monitor for preemption during transmissions to other UEs in order to receive new resource grants associated with the preempted resource grant. Whether a UE monitors transmissions for preemption may be determined based on a quality or service (QoS) of the UE.
    Type: Application
    Filed: November 20, 2018
    Publication date: March 21, 2019
    Inventors: Jelena Damnjanovic, Aleksandar Damnjanovic, Taesang Yoo, Siddhartha Mallik, Madhavan Srinivasan Vajapeyam, Durga Prasad Malladi, Yongbin Wei
  • Patent number: 10219256
    Abstract: Described herein are methods, systems, and apparatus for communicating control information over a primary component carrier (PCell). In one example, a method for wireless communication is described that includes communicating using an enhanced component carrier (eCC) on at least a secondary component carrier (SCell) in a carrier aggregation (CA) configuration. The method may also include using a PCell for control information pertaining to communications on the eCC. The control information may be channel state information (CSI) or acknowledgment/negative-acknowledgment (ACK/NACK) feedback information.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: February 26, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Taesang Yoo, Durga Prasad Malladi, Yongbin Wei, Jelena Damnjanovic, Aleksandar Damnjanovic
  • Patent number: 10219292
    Abstract: Methods, systems, and devices for wireless communication are described. A base station may employ a multiplexing configuration based on latency and efficiency considerations. The base station may transmit a resource grant, a signal indicating the length of a downlink (DL) transmission time interval (TTI), and a signal indicating the length of a subsequent uplink (UL) TTI to one or more user equipment (UEs). The base station may dynamically select a new multiplexing configuration by, for example, setting the length of an UL TTI to zero or assigning multiple UEs resources in the same DL TTI. Latency may also be reduced by employing block feedback, such as block hybrid automatic repeat request (HARQ) feedback. A UE may determine and transmit HARQ feedback for each transport block (TB) of a set of TBs, which may be based on a time duration of a downlink TTI.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: February 26, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Jelena Damnjanovic, Taesang Yoo, Siddhartha Mallik, Aleksandar Damnjanovic, Arumugam Chendamarai Kannan, Madhavan Srinivasan Vajapeyam, Durga Prasad Malladi, Yongbin Wei, Tao Luo
  • Patent number: 10211909
    Abstract: A method and apparatus for link adaptation in a satellite communication system, wherein a satellite is configured to receive reverse-link (RL) communications from a user terminal (UT) via a service link and retransmit the RL communications to a satellite access network (SAN) via a feeder link. The SAN may select a reference location for the UT within a footprint of the satellite, and determine a set of operating parameters for the RL communications to achieve a target power efficiency of the satellite based on the reference location. The SAN may dynamically adjust one or more of the operating parameters, while maintaining the target power efficiency of the satellite, based at least in part on channel conditions in at least one of the service link, the feeder link, or a combination thereof. Among other advantages, the method disclosed herein may optimize RL communications based on the capabilities of the satellite.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: February 19, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Jose Edson Vargas, Jun Ma, Jelena Damnjanovic, Iyab Sakhnini
  • Patent number: 10212635
    Abstract: Multiple data bearers may be configured for a user equipment (UE) for carrier aggregation and may be split among multiple evolved nodeBs (eNBs). The eNBs may be selected to serve the multiple data bearers for the UE based on various criteria such as channel conditions, loading, and the like. Various eNBs may be selected to serve data bearers for UE on a per data bearer basis, so that a particular eNB may be selected to serve each data bearer of the UE. Each data packet for the UE may then be sent via an appropriate data bearer.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: February 19, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Gavin Bernard Horn, Jelena Damnjanovic, Rajat Prakash
  • Publication number: 20190053168
    Abstract: The described apparatus and methods may include a controller configured to determine power required for at least one of a plurality of carriers, and generate at least one of a plurality of power control commands for at least one of the plurality of carriers based on the determination.
    Type: Application
    Filed: October 12, 2018
    Publication date: February 14, 2019
    Inventors: Jelena Damnjanovic, Juan Montojo, Naga Bhushan
  • Publication number: 20190045509
    Abstract: Various aspects described herein relate to communicating using dynamic uplink and downlink transmission time interval (TTI) switching in a wireless network. A notification can be received from a network entity of switching a configurable TTI from downlink communications to uplink communications. The configurable TTI can be one of a plurality of TTIs in a frame structure that allows dynamic switching of configurable TTIs between downlink and uplink communications within a frame. Additionally, uplink communications can be transmitted to the network entity during the configurable TTI based at least in part on the notification.
    Type: Application
    Filed: October 9, 2018
    Publication date: February 7, 2019
    Inventors: Siddhartha MALLIK, Taesang YOO, Jelena DAMNJANOVIC, Aleksandar DAMNJANOVIC, Arumugam CHENDAMARAI KANNAN, Yongbin WEI, Durga Prasad MALLADI
  • Publication number: 20190045530
    Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) configured with several component carriers (CCs) may select one or more CCs for fast activation. The UE may, in various examples, autonomously select the CCs for fast activation or may receive signaling indicating such CCs. In some cases, the UE may place the selected CCs in a semi-active state by detecting and synchronizing the CCs while refraining from control channel monitoring. In other examples, the UE may identify a set of CCs that may be activated quickly based on channel conditions or that have activation interdependency, such as CCs in a physical uplink control channel (PUCCH) group. The UE may then trigger an activation for one of the selected CCs, determine it is capable of fast activation, and begin monitoring, e.g., for control information, after a reduced delay period based on the fast activation.
    Type: Application
    Filed: October 10, 2018
    Publication date: February 7, 2019
    Inventors: Madhavan Srinivasan Vajapeyam, Wanshi Chen, Jelena Damnjanovic, Amir Aminzadeh Gohari, Peter Gaal
  • Publication number: 20190007129
    Abstract: A method and apparatus for link adaptation in a satellite communication system, wherein a satellite is configured to receive reverse-link (RL) communications from a user terminal (UT) via a service link and retransmit the RL communications to a satellite access network (SAN) via a feeder link. The SAN may select a reference location for the UT within a footprint of the satellite, and determine a set of operating parameters for the RL communications to achieve a target power efficiency of the satellite based on the reference location. The SAN may dynamically adjust one or more of the operating parameters, while maintaining the target power efficiency of the satellite, based at least in part on channel conditions in at least one of the service link, the feeder link, or a combination thereof. Among other advantages, the method disclosed herein may optimize RL communications based on the capabilities of the satellite.
    Type: Application
    Filed: June 30, 2017
    Publication date: January 3, 2019
    Inventors: Jose Edson Vargas, Jun Ma, Jelena Damnjanovic, lyab Sakhnini