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71.发明申请公开(公告)号：US20170048876A1
公开(公告)日：2017-02-16
申请号：US15237485
申请日：2016-08-15
Applicant: NEC Laboratories America, Inc.
Inventor： Rajesh Mahindra , Karthikeyan Sundaresan , Junguk Cho , Sampath Rangarajan
IPC: H04W72/08 , H04L12/66 , H04L29/08 , H04W8/00 , H04L12/14 , H04L12/46 , H04W8/08 , H04W88/16 , H04L12/851
CPC classification number: H04L12/4633 , H04L12/1407 , H04L12/407 , H04L12/66 , H04L67/1036 , H04M15/66 , H04M15/8033 , H04W4/00 , H04W4/24 , H04W76/00
Abstract: Systems and methods for standards compatible Mobile Edge Computing (MEC), including splitting Serving gateways (SGWs) and Packet Data Network gateways (PDN-GWs) to provision sufficient resources to deploy data-plane entity instances locally at a Radio Access Network (RAN) edge with one or more cloudlets. One or more local controller nodes is deployed in one or more operator clouds, a dedicated bearer is leveraged to route traffic from the one or more cloudlets through the split SGWs and PDN-GWs, and the dedicated bearer is configured with a traffic flow template (TFT) including an Internet Protocol (IP) address of the one or more cloudlets. Efficient access to one or more MEC applications at the RAN edge is provided to one or more user devices using the dedicated bearer.
Abstract translation: 包括拆分服务网关（SGW）和分组数据网络网关（PDN-GW）的标准兼容移动边缘计算（MEC）的系统和方法来提供足够的资源，以在无线电接入网络（RAN）本地部署数据平面实体实例， 边缘与一个或多个云纹。 一个或多个本地控制器节点部署在一个或多个运营商云中，利用专用承载来通过分组SGW和PDN-GW从一个或多个云端路由业务，并且专用承载配置有业务流模板 TFT），其包括一个或多个云端的因特网协议（IP）地址。 使用专用承载向RAN边缘的一个或多个MEC应用提供有效的访问。
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72.发明授权Multi-user multiple input multiple output (MIMO) communication with distributed antenna systems in wireless networks 有权与无线网络中的分布式天线系统的多用户多输入多输出（MIMO）通信公开(公告)号：US09450654B2
公开(公告)日：2016-09-20
申请号：US14333245
申请日：2014-07-16
Applicant: NEC Laboratories America, Inc.
Inventor： Karthikeyan Sundaresan , Mohammad Khojastepour , Sampath Rangarajan , Jie Xiong
CPC classification number: H04B7/0452 , H04B7/024 , H04B7/0443 , H04B7/0456 , H04B7/0617 , H04B7/0691 , H04L5/006 , H04W64/00
Abstract: A system and a method are provided. The method includes deploying a plurality of antennas of an access point or a base station as a distributed antenna system. The method further includes configuring the distributed antenna system for multi-user wireless transmissions by applying medium access techniques and power-balanced pre-coding at the access point or the base station. The method also includes providing device localization for devices communicating with the distributed antenna system by applying time-difference-of-arrival techniques to antenna pairs from among the plurality of antennas at the access point or the base station.
Abstract translation: 提供了一种系统和方法。 该方法包括将接入点或基站的多个天线部署为分布式天线系统。 该方法还包括通过在接入点或基站处应用媒体接入技术和功率平衡预编码来配置用于多用户无线传输的分布式天线系统。 该方法还包括通过对接入点或基站处的多个天线中的天线对应用时差差技术来向与分布式天线系统通信的设备提供设备定位。
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公开(公告)号：US20160269297A1
公开(公告)日：2016-09-15
申请号：US15064665
申请日：2016-03-09
Applicant: NEC Laboratories America, Inc.
Inventor： Rajesh Mahindra , Karthikeyan Sundaresan , Arijit Banerjee , Sampath Rangarajan
IPC: H04L12/803 , H04L12/743
CPC classification number: H04L47/125 , G06F9/46 , G06F9/50
Abstract: Methods and systems for load balancing on a control plane include calculating a hash of a unique identifier using a processor. The unique identifier is associated with a requesting device issuing a control request. The hash is mapped to a control plane processing device. The control request is forwarded to the control plane processing device.
Abstract translation: 用于在控制平面上进行负载平衡的方法和系统包括使用处理器计算唯一标识符的散列。 唯一标识符与发出控制请求的请求设备相关联。 散列映射到控制平面处理设备。 控制请求被转发到控制平面处理设备。
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74.发明申请公开(公告)号：US20150312903A1
公开(公告)日：2015-10-29
申请号：US14661036
申请日：2015-03-18
Applicant: NEC Laboratories America, Inc.
Inventor： Narayan Prasad , Mohammad Khojastepour , Mustafa Arslan , Karthikeyan Sundaresan , Sampath Rangarajan
CPC classification number: H04W72/0433 , H04B7/024 , H04B7/0626 , H04B7/063 , H04B7/0632 , H04L5/0007 , H04L5/0032 , H04L5/0035 , H04L5/0073 , H04L5/0096 , H04W72/0426 , H04W72/082
Abstract: In a wireless communications system including a first transmission point and a second transmission point, a wireless communications method implemented in the first transmission point supporting coordinated multi-point transmission and reception (CoMP) is disclosed. The wireless communications method comprises transmitting to the second transmission point one or more CoMP hypothesis sets, and transmitting to the second transmission point a benefit metric corresponding to each CoMP hypothesis set, wherein the benefit metric can be a negative value. Other methods, systems, and apparatuses also are disclosed.
Abstract translation: 在包括第一传输点和第二传输点的无线通信系统中，公开了在支持协调多点传输和接收（CoMP）的第一传输点中实现的无线通信方法。 所述无线通信方法包括向所述第二传输点发送一个或多个CoMP假设集合，并向所述第二传输点发送对应于每个CoMP假设集合的优惠度量，其中所述益处度量可以是负值。 还公开了其它方法，系统和装置。
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75.发明申请Coordinated Multi-Point Transmission and Reception (CoMP) with Non-Ideal Backhaul (NIB) 审中-公开具有非理想回程（NIB）的协调多点传输和接收（CoMP）公开(公告)号：US20150117562A1
公开(公告)日：2015-04-30
申请号：US14527800
申请日：2014-10-30
Applicant: NEC Laboratories America, Inc.
Inventor： Narayan Prasad, I , Mohammad Khojastepour , Mustafa Arslan , Karthikeyan Sundaresan , Sampath Rangarajan
CPC classification number: H04B7/0626 , H04B7/024 , H04L5/0035 , H04L5/0053 , H04L5/0057
Abstract: A wireless communications method implemented in a transmission point (TP) used in a mobile communications system is disclosed. The wireless communications method includes receiving, from another TP, short-term channel state information (short-term CSI), and processing the short-term CSI. Other methods, systems, and apparatuses also are disclosed.
Abstract translation: 公开了一种在移动通信系统中使用的传输点（TP）中实现的无线通信方法。 无线通信方法包括从另一个TP接收短期信道状态信息（短期CSI）和处理短期CSI。 还公开了其它方法，系统和装置。
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Patent Agency Ranking
公开(公告)号：US20150029904A1
公开(公告)日：2015-01-29
申请号：US14334129
申请日：2014-07-17
Applicant: NEC Laboratories America, Inc.
Inventor： Mohammad Khojastepour , Karthikeyan Sundaresan , Sampath Rangarajan
IPC: H04L5/16
CPC classification number: H04L5/16
Abstract: Methods are provided for converting from half-duplex communication to full-duplex communication in a legacy wireless cellular system having a base station. A method includes providing in the base station separate transmit and receive paths for transmit signals and receive signals, respectively. The method further includes converting an uplink frequency band and a downlink frequency band for the base station to a same frequency band. The method also includes applying analog signal cancellation techniques at the base station to isolate a full-duplex wireless reception signal from a full-duplex wireless transmission signal.
Abstract translation: 提供了用于在具有基站的传统无线蜂窝系统中从半双工通信转换为全双工通信的方法。 一种方法包括在基站中分别提供用于发送信号和接收信号的发送和接收路径。 该方法还包括将基站的上行链路频带和下行链路频带转换为相同的频带。 该方法还包括在基站处应用模拟信号消除技术以将全双工无线接收信号与全双工无线传输信号隔离开来。
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77.发明申请MULTI-USER MULTIPLE INPUT MULTIPLE OUTPUT (MIMO) COMMUNICATION WITH DISTRIBUTED ANTENNA SYSTEMS IN WIRELESS NETWORKS 有权在无线网络中分布式天线系统的多用户多输入多输出（MIMO）通信公开(公告)号：US20150023248A1
公开(公告)日：2015-01-22
申请号：US14333245
申请日：2014-07-16
Applicant: NEC Laboratories America, Inc.
Inventor： Karthikeyan Sundaresan , Mohammad Khojastepour , Sampath Rangarajan , Jie Xiong
CPC classification number: H04B7/0452 , H04B7/024 , H04B7/0443 , H04B7/0456 , H04B7/0617 , H04B7/0691 , H04L5/006 , H04W64/00
Abstract: A system and a method are provided. The method includes deploying a plurality of antennas of an access point or a base station as a distributed antenna system. The method further includes configuring the distributed antenna system for multi-user wireless transmissions by applying medium access techniques and power-balanced pre-coding at the access point or the base station. The method also includes providing device localization for devices communicating with the distributed antenna system by applying time-difference-of-arrival techniques to antenna pairs from among the plurality of antennas at the access point or the base station.
Abstract translation: 提供了一种系统和方法。 该方法包括将接入点或基站的多个天线部署为分布式天线系统。 该方法还包括通过在接入点或基站处应用媒体接入技术和功率平衡预编码来配置用于多用户无线传输的分布式天线系统。 该方法还包括通过对接入点或基站处的多个天线中的天线对应用时差差技术来向与分布式天线系统通信的设备提供设备定位。
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78.发明授权Methods and systems for allocation of macro cell resources in a distributed femto cell network and a distributed relay station network 有权在分布式毫微微小区网络和分布式中继站网络中分配宏小区资源的方法和系统公开(公告)号：US08780849B2
公开(公告)日：2014-07-15
申请号：US13650433
申请日：2012-10-12
Applicant: NEC Laboratories America, Inc.
Inventor： Karthikeyan Sundaresan , Sampath Rangarajan
CPC classification number: H04W72/04 , H04L5/0023 , H04W72/042 , H04W72/0486 , H04W84/045
Abstract: Methods and systems for reusing macro cell resources in femto cell base stations or relay stations in a non-collaborative manner are disclosed. In addition, orthogonal resource allocation between a macro cell base station and femto cell base stations/relay stations may be dynamically adjusted by considering user-population variance. Moreover, an additional level of spatial reuse by femto cell base stations or relay stations can be provided by employing macro cell user location information.
Abstract translation: 公开了以非协作方式在毫微微小区基站或中继站中重用宏小区资源的方法和系统。 此外，可以通过考虑用户群体方差来动态地调整宏小区基站和毫微微小区基站/中继站之间的正交资源分配。 此外，可以通过使用宏小区用户位置信息来提供毫微微小区基站或中继站的附加级别的空间重用。
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79.发明申请METHODS AND SYSTEMS FOR ALLOCATION OF MACRO CELL RESOURCES IN A DISTRIBUTED FEMTO CELL NETWORK AND A DISTRIBUTED RELAY STATION NETWORK 有权分布式有限元细胞网络和分布式继电器网络中宏块资源分配的方法和系统公开(公告)号：US20130039335A1
公开(公告)日：2013-02-14
申请号：US13650433
申请日：2012-10-12
Applicant: NEC LABORATORIES AMERICA, INC.
Inventor： Karthikeyan Sundaresan , Sampath Rangarajan
IPC: H04W72/04
CPC classification number: H04W72/04 , H04L5/0023 , H04W72/042 , H04W72/0486 , H04W84/045
Abstract: Methods and systems for reusing macro cell resources in femto cell base stations or relay stations in a non-collaborative manner are disclosed. In addition, orthogonal resource allocation between a macro cell base station and femto cell base stations/relay stations may be dynamically adjusted by considering user-population variance. Moreover, an additional level of spatial reuse by femto cell base stations or relay stations can be provided by employing macro cell user location information.
Abstract translation: 公开了以非协作方式在毫微微小区基站或中继站中重用宏小区资源的方法和系统。 此外，可以通过考虑用户群体方差来动态地调整宏小区基站和毫微微小区基站/中继站之间的正交资源分配。 此外，可以通过使用宏小区用户位置信息来提供毫微微小区基站或中继站的附加级别的空间重用。
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公开(公告)号：US11971473B2
公开(公告)日：2024-04-30
申请号：US17157194
申请日：2021-01-25
Applicant: NEC Laboratories America, Inc.
Inventor： Karthikeyan Sundaresan , Sampath Rangarajan
CPC classification number: G01S13/753 , G01S13/758 , G01S13/765 , G06K7/10306
Abstract: A product locating system is provided. The system includes at least one Radio Frequency (RF) backscatter transmitter configured to emit a main carrier RF signal that forms an excitation signal. The system further includes a passive RF backscatter tag associated with a product and configured to generate an Ultra-Wideband (UWB) signal from the excitation signal. The system also includes at least one RF backscatter receiver configured to simultaneously receive both the excitation signal from the at least one RF backscatter transmitter and the UWB signal from the passive RF backscatter tag, and compute the time-difference-of-arrival (TDoA) therebetween. TDoA information from multiple RF backscatter receivers, including the at least one RF backscatter receiver, is aggregated to compute the location of the product to which the passive RF backscatter tag is attached.
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