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    SELF-CONFIGURING LONG TERM EVOLUTION RADIO ACCESS NETWORK ON UNMANNED AUTONOMOUS VEHICLES
    91.
    发明申请
    SELF-CONFIGURING LONG TERM EVOLUTION RADIO ACCESS NETWORK ON UNMANNED AUTONOMOUS VEHICLES 审中-公开

    公开(公告)号：US20190278302A1

    公开(公告)日：2019-09-12

    申请号：US16289847

    申请日：2019-03-01

    Applicant: NEC Laboratories America, Inc.

    Inventor： Karthikeyan Sundaresan ,  Eugene Chai ,  Sampath Rangarajan ,  Mohammad Khojastepour ,  Ayon Chakraborty

    IPC: G05D1/10 ,  B64C39/02 ,  G01S19/46 ,  G01S19/10

    Abstract: A computer-implemented method, system, and computer program product are provided for positioning an unmanned autonomous vehicle (UAV) in a long term evolution radio access network. The method includes acquiring, by a processor-device, a position of the UAV with a global position system. The method also includes determining, by the processor-device, physical distances from the UAV to each of a plurality of user equipment (UE) responsive to a time-of-flight from the UAV to each of the plurality of UE. The method additionally includes generating, by the processor-device, radio environment maps for each of the plurality of UE with signal-to-noise ratios (SNR) from each of the plurality of UEs to the UAV. The method further includes selecting, by the processor-device, a determined position for the UAV as a position with a minimum SNR in the REMs. The method also includes commanding the UAV to move to the determined position.

    BLUE-PRINTING INTERFERENCE FOR LTE ACCESS IN UNLICENSED SPECTRUM
    93.
    发明申请
    BLUE-PRINTING INTERFERENCE FOR LTE ACCESS IN UNLICENSED SPECTRUM 审中-公开

    公开(公告)号：US20180270690A1

    公开(公告)日：2018-09-20

    申请号：US15915436

    申请日：2018-03-08

    Applicant: NEC Laboratories America, Inc.

    Inventor： Karthikeyan Sundaresan ,  Eugene Chai ,  Mohammad Khojastepour ,  Sampath Rangarajan

    IPC: H04W24/10 ,  H04W72/08 ,  H04L12/26 ,  H04L12/24

    CPC classification number: H04W24/02 ,  H04W16/14 ,  H04W16/22 ,  H04W24/10 ,  H04W72/082

    Abstract: A system, method, and computer program product are provided for blue-printing interference for mobile access in an unlicensed spectrum of a synchronous scheduled cellular access system. The system includes a cellular base station having a processor. The processor constructs and executes an intelligent measurement schedule of clients for uplink transmissions to obtain access measurements for the uplink transmissions. The intelligent measurement schedule is constructed for scalable access measurement overhead. The access measurements indicate interference dependencies between the clients. The processor estimates an interference topology and statistics of the interference topology, from the access measurements to form an interference blueprint. The processor adjusts the intelligent measurement schedule to overschedule the clients for the uplink transmissions to reduce spectrum utilization loss while minimizing client transmission collisions, based on the interference blueprint. The processor initiates the uplink transmissions for the clients in accordance with the adjusted intelligent measurement schedule.

    Efficient network-wide broadcasting over LTE networks
    94.
    发明授权
    Efficient network-wide broadcasting over LTE networks 有权

    公开(公告)号：US09967860B2

    公开(公告)日：2018-05-08

    申请号：US15066340

    申请日：2016-03-10

    Applicant: NEC Laboratories America, Inc.

    Inventor： Karthikeyan Sundaresan ,  Mustafa Arslan ,  Rajarajan Sivaraj

    IPC: H04W72/00 ,  H04W28/02 ,  H04B7/024 ,  H04W72/08

    CPC classification number: H04W72/005 ,  H04B7/024 ,  H04L47/38 ,  H04W28/0236 ,  H04W40/32 ,  H04W72/082

    Abstract: A system and method for network-wide broadcasting, including identifying interference dependencies between base stations (eNBs) to generate one or more single frequency network (SFN) clusters for one or more broadcast sessions. The generating of SFN clusters includes performing a controlled decrease in transmit diversity gain for each of the sessions by progressively creating smaller SFN clusters, iteratively creating the smaller SFN clusters until a target modulation and coding scheme (MCS) threshold is met to generate a plurality of SFN clusters, and selecting an SFN cluster with a maximum common MCS for all SFN clusters in a set. Resource block (RB) allocation is integrated with the generating of the SFN clusters to determine maximum system utility, and the system utility considers the sum of the utilities of broadcast and unicast flows. Network-wide broadcasting is controlled based on the determined maximum system utility.

    Multicell beamforming system and methods for OFDMA small-cell networks
    100.
    发明授权
    Multicell beamforming system and methods for OFDMA small-cell networks 有权
    用于OFDMA小蜂窝网络的多芯波束成形系统和方法

    公开(公告)号：US09521560B2

    公开(公告)日：2016-12-13

    申请号：US14231290

    申请日：2014-03-31

    Applicant: NEC Laboratories America, Inc.

    Inventor： Karthikeyan Sundaresan ,  Mohammad Ali Khojastepour ,  Sampath Rangarajan ,  Jongwon Yoon

    IPC: H04W16/28 ,  H04W24/08 ,  H01Q3/00

    CPC classification number: H04W16/28 ,  H01Q3/00

    Abstract: Disclosed are systems, methods and structures that provide improved spatial reuse of spectral resources in small-cell wireless networks including WiMAX, LTE, LTE-Advanced, etc. Advantageously, the systems and method disclosed while leveraging beamforming for spatial reuse across small cells also decouple it from per-frame scheduling at a small cell base station thereby allowing for beam selections to be computed with a granularity measured in seconds. In realizing these advantages, systems, methods and structures disclosed integrate beam selection with client association.

    Abstract translation: 公开了在包括WiMAX，LTE，LTE-Advanced等的小小区无线网络中提供频谱资源的改进的空间重用的系统，方法和结构。有利地，在利用波束成形在小型小区中进行空间重用的同时披露的系统和方法也解耦 它来自小单元基站的每帧调度，从而允许以秒为单位测量的粒度来计算波束选择。 在实现这些优点时，公开的系统，方法和结构将波束选择与客户端关联相结合。

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