Patents by Inventor Murali Narasimha

Murali Narasimha 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: 20240008136
    Abstract: A processor determines that a UE operates in a DRX cycle including a DRX-on duration followed by a DRX-sleep duration. The processor configures a plurality of periodic uplink CG occasions within the DRX cycle. Each uplink CG occasion supports uplink transmission of a predefined size. The processor reads a data buffer to determine a size of accumulated data. At a given uplink CG occasion, the processor compares the size of accumulated data with an upper threshold data size and a lower threshold data size. Responsive to a first comparison result, the processor transmits the accumulated data over one or more uplink CG occasions starting from the given uplink CG occasion. Responsive to a second comparison result, the processor transmits a BSR at the given uplink CG occasion. Responsive to a third comparison result, the processor transmits neither the accumulated data nor the BSR at the given uplink CG occasion.
    Type: Application
    Filed: June 29, 2022
    Publication date: January 4, 2024
    Inventors: Neha Goel, Murali Narasimha, Sreevalsan Vallath
  • Patent number: 11863482
    Abstract: First aperiodic zero power channel state information reference signal configuration information of a serving cell can be transmitted. Second aperiodic zero power channel state information reference signal configuration information of the serving cell can be transmitted. Downlink control information can be transmitted in a subframe of the serving cell. The downlink control information can include an aperiodic zero power channel state information reference signal indicator bit field that indicates a selection of one of at least the first aperiodic zero power channel state information reference signal configuration, the second aperiodic zero power channel state information reference signal configuration, and no aperiodic zero power channel state information reference signal in the subframe.
    Type: Grant
    Filed: July 25, 2022
    Date of Patent: January 2, 2024
    Assignee: Motorola Mobility LLC
    Inventors: Ajit Nimbalker, Vijay Nangia, Murali Narasimha, Ravikiran Nory
  • Publication number: 20230422096
    Abstract: Various embodiments herein provide techniques for integrated access and backhaul (IAB) nodes. For example, embodiments include techniques associated with: rate-proportional routing for network coding; utilizing multiple routes in IAB networks; user equipment (UE) and parent selection for efficient topology in IAB networks; establishing efficient IAB topologies; and/or adaptive coded-forwarding for network coding. Other embodiments may be described and claimed.
    Type: Application
    Filed: August 15, 2023
    Publication date: December 28, 2023
    Inventors: Wei Mao, Murali Narasimha, Jaemin Han, Meryem Simsek, Hosein Nikopour, Sudeep Palat, Navid Naderializadeh
  • Publication number: 20230403602
    Abstract: Systems and methods provide flow control for uplink traffic in an integrated access and backhaul network. A first relay node determines that its uplink buffer has reached an occupancy level higher than a pre-determined level. In response, the first relay node transmits, to a second relay node associated with the first relay node, a message indicating a buffer occupancy status of the uplink buffer of the first relay node.
    Type: Application
    Filed: August 28, 2023
    Publication date: December 14, 2023
    Inventors: Murali Narasimha, Sudeep Palat, Candy Yiu
  • Publication number: 20230396376
    Abstract: A network controller may configure one or more channel state information-reference signal (CSI-RS) configurations for transmitting RSs to user equipments (UEs) for tracking. A CSI-RS configuration may specify a set of CSI-RS resources for transmitting RSs in two consecutive slots. The set of CSI-RS resources may include a plurality of one-port CSI-RS resources configured according to the CSI-RS configuration. The CSI-RS configuration may specify a quasi co-location (QCL) configuration including a set of QCL parameters, where a demodulation reference signal (DMRS) has a QCL relationship with the RS with respect to the set of QCL parameters. The network controller may signal the one or more CSI-RS configurations to UEs.
    Type: Application
    Filed: June 7, 2023
    Publication date: December 7, 2023
    Inventors: Qian Cheng, Weimin Xiao, Jialing Liu, Murali Narasimha
  • Patent number: 11770752
    Abstract: Systems and methods of reducing control plane latency in a 5G IAB network are described. SRs transmitted between nodes indicate that a control plane PDU is to be transmitted. The SRs use periodic resources or OCCs reserved for control plane signaling and are initiated by an RRC message or RACH from the UE. The SRs are initiated if the LCD field in the MAC sub header of the RRC message indicates the CCCH or the DCCH logical channel. If the PDU is available after the original resource, a resource is used that is provided via another grant, which is periodically provided or automatically initiated due to failure to transmit on the original grant. The SR or RRC message can also specify a delayed timeslot for the grant. For contention-based procedures the RACH preamble is randomly selected or selected from among a set of RACH preambles assigned for RRC procedures.
    Type: Grant
    Filed: October 3, 2022
    Date of Patent: September 26, 2023
    Assignee: Apple Inc.
    Inventors: Yujian Zhang, Qian Li, Youn Hyoung Heo, Sudeep K. Palat, Murali Narasimha
  • Patent number: 11751093
    Abstract: Systems and methods provide flow control for uplink traffic in an integrated access and backhaul network. A first relay node determines that its uplink buffer has reached an occupancy level higher than a pre-determined level. In response, the first relay node transmits, to a second relay node associated with the first relay node, a message indicating a buffer occupancy status of the uplink buffer of the first relay node.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: September 5, 2023
    Assignee: APPLE INC.
    Inventors: Murali Narasimha, Sudeep Palat, Candy Yiu
  • Patent number: 11751100
    Abstract: Various embodiments herein provide techniques for integrated access and backhaul (IAB) nodes. For example, embodiments include techniques associated with: rate-proportional routing for network coding; utilizing multiple routes in IAB networks; user equipment (UE) and parent selection for efficient topology in IAB networks; establishing efficient IAB topologies; and/or adaptive coded-forwarding for network coding. Other embodiments may be described and claimed.
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: September 5, 2023
    Assignee: Intel Corporation
    Inventors: Wei Mao, Murali Narasimha, Jaemin Han, Meryem Simsek, Hosein Nikopour, Sudeep Palat, Navid Naderializadeh
  • Publication number: 20230269620
    Abstract: A user equipment (UE) may establish a connection with a network for transmission of a plurality of data bursts further comprising a plurality of data segments. The UE may transmit, to the network, a first data segment corresponding to a first quality of service flow identifier (QFI) associated with a first quality of service (QoS) flow and a second data segment corresponding to a second QFI associated with a second QoS flow. The UE may be configured to map one or more data segments to one or more QFIs based on at least one of a slice type, a frame type, a modulo operation, and a sequence number. The plurality of data bursts may be transmitted according to at least one of one or more configured grants (CGs), one or more dynamic grants (DGs), and one or more instances of the one or more CGs or one or more DGs.
    Type: Application
    Filed: June 25, 2021
    Publication date: August 24, 2023
    Inventors: Ralf Rossbach, Fangli Xu, Haijing Hu, Murali Narasimha, Sarma V. Vangala, Weidong Yang
  • Patent number: 11711180
    Abstract: A network controller may configure one or more channel state information-reference signal (CSI-RS) configurations for transmitting RSs to user equipments (UEs) for tracking. A CSI-RS configuration may specify a set of CSI-RS resources for transmitting RSs in two consecutive slots. The set of CSI-RS resources may include a plurality of one-port CSI-RS resources configured according to the CSI-RS configuration. The CSI-RS configuration may specify a quasi co-location (QCL) configuration including a set of QCL parameters, where a demodulation reference signal (DMRS) has a QCL relationship with the RS with respect to the set of QCL parameters. The network controller may signal the one or more CSI-RS configurations to UEs.
    Type: Grant
    Filed: April 27, 2021
    Date of Patent: July 25, 2023
    Assignee: Futurewei Technologies, Inc.
    Inventors: Qian Cheng, Weimin Xiao, Jialing Liu, Murali Narasimha
  • Publication number: 20230232287
    Abstract: The present application relates to devices and components including apparatus, systems, and methods for integrated access and backhaul radio link failure and handover scenarios in wireless communication systems.
    Type: Application
    Filed: April 1, 2021
    Publication date: July 20, 2023
    Applicant: Apple Inc.
    Inventors: Sarma V. Vangala, Fangli Xu, Haijing Hu, Murali Narasimha, Naveen Kumar R. Palle Venkata, Ralf Rossbach, Sethuraman Gurumoorthy, Sree Ram Kodali, Srinivasan Nimmala, Yuqin Chen, Zhibin Wu
  • Publication number: 20230208578
    Abstract: User Equipments (UEs) may be assigned a set of aggregated component carriers for downlink carrier aggregation and/or carrier selection. Some UEs may be incapable of transmitting uplink signals over all component carriers in their assigned set of aggregated component carriers. In such scenarios, a UE may need to perform SRS switching in order to transmit SRS symbols over all of the component carriers. Embodiments of this disclosure provide various techniques for facilitating SRS switching. For example, a radio resource control (RRC) message may be used to signal a periodic SRS configuration parameter. As another example, a downlink control indication (DCI) message may be used to signal an aperiodic SRS configuration parameter. Many other examples are also provided.
    Type: Application
    Filed: October 17, 2022
    Publication date: June 29, 2023
    Inventors: Jialing Liu, Weimin Xiao, Murali Narasimha, Brian Classon, Qian Cheng
  • Publication number: 20230180212
    Abstract: Systems and methods for enhancing the use of pre-emptive buffer status reports (pre-BSRs) in wireless communications systems implementing integrated access and backhaul (IAB) networks are disclosed herein. In some cases, an IAB node can re-classify the LCGs of one or more incoming data flows according to such pre-BSR usage. This may involve the use of and extended medium access control (MAC) control element (MAC CE) having more LCG bits than previously contemplated, having sub-LCG bits, or that includes further LCG classification information bits. Other embodiments use a priority index for LCGs in an extended pre-BSR MAC CE. The priority index may include one or more of a priority field, a prioritized bit rate (PBR), and/or a bucket size duration (BSD) that is reported to an IAB donor. Other embodiments leverage the provision of additional grants from an IAB node to a child IAB node to reduce unwanted pre-BSR effects.
    Type: Application
    Filed: January 14, 2021
    Publication date: June 8, 2023
    Inventors: Sarma V. Vangala, Fangli Xu, Haijing Hu, Murali Narasimha, Naveen Kumar R Palle Venkata, Ralf Rossbach, Sethuraman Gurumoorthy, Sree Ram Kodali, Yuqin Chen, Zhibin Wu
  • Publication number: 20230087582
    Abstract: Systems and methods of reducing control plane latency in a 5G IAB network are described. SRs transmitted between nodes indicate that a control plane PDU is to be transmitted. The SRs use periodic resources or OCCs reserved for control plane signaling and are initiated by an RRC message or RACH from the UE. The SRs are initiated if the LCD field in the MAC sub header of the RRC message indicates the CCCH or the DCCH logical channel. If the PDU is available after the original resource, a resource is used that is provided via another grant, which is periodically provided or automatically initiated due to failure to transmit on the original grant. The SR or RRC message can also specify a delayed timeslot for the grant. For contention-based procedures the RACH preamble is randomly selected or selected from among a set of RACH preambles assigned for RRC procedures.
    Type: Application
    Filed: October 3, 2022
    Publication date: March 23, 2023
    Inventors: Yujian ZHANG, Qian LI, Youn Hyoung HEO, Sudeep K. PALAT, Murali NARASIMHA
  • Patent number: 11503637
    Abstract: A method for a base station can create a subframe structure used in communication between the base station and a UE. The subframe structure can include a plurality of subframes each having a subframe duration. The method can include operating a serving cell on a carrier frequency. The method can include performing a LBT on the carrier frequency for a time duration that at least partially overlaps a terminal portion of a subframe duration of a first subframe of the plurality of subframes. The method can include determining a position of a starting OFDM symbol for transmitting a control channel in a second subframe of the plurality of subframes based on the time duration of the LBT. The subframe duration of the second subframe can occur immediately after the subframe duration of the first subframe.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: November 15, 2022
    Assignee: Motorola Mobility LLC
    Inventors: Ravikiran Nory, Vijay Nangia, Murali Narasimha, Ajit Nimbalker
  • Publication number: 20220360400
    Abstract: First aperiodic zero power channel state information reference signal configuration information of a serving cell can be transmitted. Second aperiodic zero power channel state information reference signal configuration information of the serving cell can be transmitted. Downlink control information can be transmitted in a subframe of the serving cell. The downlink control information can include an aperiodic zero power channel state information reference signal indicator bit field that indicates a selection of one of at least the first aperiodic zero power channel state information reference signal configuration, the second aperiodic zero power channel state information reference signal configuration, and no aperiodic zero power channel state information reference signal in the subframe.
    Type: Application
    Filed: July 25, 2022
    Publication date: November 10, 2022
    Inventors: Ajit Nimbalker, Vijay Nangia, Murali Narasimha, Ravikiran Nory
  • Patent number: 11476989
    Abstract: User Equipments (UEs) may be assigned a set of aggregated component carriers for downlink carrier aggregation and/or carrier selection. Some UEs may be incapable of transmitting uplink signals over all component carriers in their assigned set of aggregated component carriers. In such scenarios, a UE may need to perform SRS switching in order to transmit SRS symbols over all of the component carriers. Embodiments of this disclosure provide various techniques for facilitating SRS switching. For example, a radio resource control (RRC) message may be used to signal a periodic SRS configuration parameter. As another example, a downlink control indication (DCI) message may be used to signal an aperiodic SRS configuration parameter. Many other examples are also provided.
    Type: Grant
    Filed: June 19, 2020
    Date of Patent: October 18, 2022
    Assignee: Futurewei Technologies, Inc.
    Inventors: Jialing Liu, Weimin Xiao, Murali Narasimha, Brian Classon, Qian Cheng
  • Publication number: 20220322204
    Abstract: A user equipment (UE) is configured to access a first base station in a network via an access link, wherein the first base station is an integrated access and backhaul (IAB) node in a first IAB network topology connected to a second base station via one or more backhaul links, wherein the second base station is an IAB-donor for the first base station, report, to the first base station, information for reducing a maximum data rate for the UE when the UE is deployed in one or more IAB network topologies and receive data packages with a reduced maximum data rate based on the reported information
    Type: Application
    Filed: March 29, 2022
    Publication date: October 6, 2022
    Inventors: Murali NARASIMHA, Ralf ROSSBACH, Sarma V. VANGALA
  • Patent number: 11463938
    Abstract: Systems and methods of reducing control plane latency in a 5G IAB network are described. SRs transmitted between nodes indicate that a control plane PDU is to be transmitted. The SRs use periodic resources or OCCs reserved for control plane signaling and are initiated by an RRC message or RACH from the UE. The SRs are initiated if the LCID field in the MAC subheader of the RRC message indicates the CCCH or the DCCH logical channel. If the PDU is available after the original resource, a resource is used that is provided via another grant, which is periodically provided or automatically initiated due to failure to transmit on the original grant. The SR or RRC message can also specify a delayed timeslot for the grant. For contention-based procedures the RACH preamble is randomly selected or selected from among a set of RACH preambles assigned for RRC procedures.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: October 4, 2022
    Assignee: Apple Inc.
    Inventors: Yujian Zhang, Qian Li, Youn Hyoung Heo, Sudeep K. Palat, Murali Narasimha
  • Patent number: RE49791
    Abstract: A method and apparatus schedule user equipment uplink transmissions on an unlicensed carrier. A grant for transmitting physical uplink shared channel on a serving cell operating on an unlicensed carrier can be received in a subframe. A set of subframes can be determined for possible transmission of the physical uplink shared channel. Listen before talk can be performed on the unlicensed carrier to determine an earliest unoccupied subframe in the set of subframes. A physical uplink shared channel can be transmitted in multiple subframes within the set of subframes on the unlicensed carrier, starting with the earliest unoccupied subframe, in response to receiving the grant.
    Type: Grant
    Filed: May 21, 2021
    Date of Patent: January 2, 2024
    Assignee: Motorola Mobility LLC
    Inventors: Ravikiran Nory, Vijay Nangia, Murali Narasimha, Ajit Nimbalker