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    Estimating cache size for cache routers in information centric networks
    1.
    发明授权
    Estimating cache size for cache routers in information centric networks 有权

    公开(公告)号：US10069929B2

    公开(公告)日：2018-09-04

    申请号：US15065520

    申请日：2016-03-09

    Applicant: Tata Consultancy Services Limited

    Inventor： Bighnaraj Panigrahi ,  Samar Shailendra ,  Hemant Kumar Rath ,  Anantha Simha

    IPC: H04L29/08 ,  G06F12/08 ,  G06F12/12 ,  G06F12/0871 ,  G06F12/0813

    Abstract: A technique for estimating cache size for cache routers in information centric networks (ICNs) is disclosed. In an example, an average rate of incoming requests and a probability of occurrence of each request at a cache router in a predefined time interval is determined. Further, a relation between cache hit and cache miss with and without replacement is derived based on the probability of occurrence of each request. Furthermore, an entropy of the requests is computed based on the probability of occurrence of each request. Moreover, a diversity index of the requests is calculated based on the entropy and the average rate of the requests. A cache size for the cache router is then estimated based on a user defined probability of cache hit, the average rate of the requests, the diversity index of the requests and the relation between the cache hit and cache miss with and without replacement.

    Framework for provisioning network services in cloud computing environment
    2.
    发明授权
    Framework for provisioning network services in cloud computing environment 有权

    公开(公告)号：US10367701B2

    公开(公告)日：2019-07-30

    申请号：US15253115

    申请日：2016-08-31

    Applicant: Tata Consultancy Services Limited

    Inventor： Shameemraj M Nadaf ,  Hemant Kumar Rath ,  Arun Kumar A V ,  Samar Shailendra ,  Anantha Simha

    IPC: H04L12/24 ,  H04L29/08 ,  H04L12/64 ,  G06F9/50

    Abstract: This disclosure relates generally to provisioning network services in a cloud computing environment, and more particularly to framework for provisioning network services in a heterogeneous cloud computing environment. In one embodiment, the disclosure includes a network as a service (NaaS) layer under a cloud provisioning platform. The NaaS layer can be interfaced with any cloud provisioning platform. The NaaS layer serves the networking needs of the heterogeneous cloud environment. It provides network services like monitoring, notifications, QoS policies, network topology and other services. For example, the cloud provisioning platform defines a virtual network and attaches a plurality of virtual machines to it. All the communications related to creation/deletion/update of virtual networks, virtual subnets, virtual ports, virtual router, virtual interfaces etc., are sent to the NaaS layer. On receiving the communication, the NaaS layer takes necessary steps to provide the network services as per the needs of the request. Apart from provisioning, the NaaS layer periodically monitors the network elements as well.

    Computer implemented system and method for providing robust communication links to unmanned aerial vehicles
    3.
    发明授权
    Computer implemented system and method for providing robust communication links to unmanned aerial vehicles 有权

    公开(公告)号：US10255817B2

    公开(公告)日：2019-04-09

    申请号：US15022512

    申请日：2015-01-30

    Applicant: Tata Consultancy Services Limited

    Inventor： Hrishikesh Sharma ,  Samar Shailendra ,  Balamuralidhar Purushothaman

    IPC: G08G5/00 ,  B64C39/02 ,  G05D1/00

    Abstract: A computer implemented system for providing robust communication links to unmanned aerial vehicles is envisaged. It comprises a plurality of nodes which communicate with each other and with an unmanned aerial vehicle to allow exchange of data. A 3D signal coverage model is created which determines signal coverage provided by the plurality of nodes. A navigator present in the system navigates the unmanned aerial vehicle to follow a stored flight path based on this 3D model. Waypoints present in the path of the unmanned aerial vehicle are then identified and suitable waypoints are selected from where sensed pre-stored data is collected. A suitable node is then selected based on the stored 3D signal coverage model, location of the unmanned aerial vehicle and the nodes, and the signal strength of the nodes and the collected data is transmitted to the suitable node through the unmanned aerial vehicle to provide robust communication.

    Method and system for delay aware uplink scheduling in a communication network
    5.
    发明授权
    Method and system for delay aware uplink scheduling in a communication network 有权

    公开(公告)号：US10863531B2

    公开(公告)日：2020-12-08

    申请号：US16216756

    申请日：2018-12-11

    Applicant: Tata Consultancy Services Limited

    Inventor： Bighnaraj Panigrahi ,  Hemant Kumar Rath ,  Arpan Pal ,  Samar Shailendra

    IPC: H04W72/12 ,  H04W24/08

    Abstract: This disclosure relates generally to telecommunication networks, and more particularly to a method and system for delay aware uplink scheduling in a communication network. The telecommunication network performs data uplink and data downlink associated with data communication between multiple transmitter-receiver pairs connected to the network, by using specific scheduling schema as part of the data processing. Disclosed are method and system for performing a delay-aware uplink scheduling in the communication network. For an uplink request received from a transmitter, the system estimates downlink delay at the corresponding receiver side. The system further estimates a processing delay for the received uplink request. Based on the estimated downlink delay and the processing delay, the system determines an uplink delay budget for the transmitter. Further, based on the uplink delay budget and an achievable data rate computed for the transmitter, the system schedules uplink for the transmitter.

    Systems and methods for delay based power ramping of devices
    6.
    发明授权
    Systems and methods for delay based power ramping of devices 有权

    公开(公告)号：US10462825B2

    公开(公告)日：2019-10-29

    申请号：US15792034

    申请日：2017-10-24

    Applicant: Tata Consultancy Services Limited

    Inventor： Samar Shailendra ,  Aniruddh Rao Kabbinale ,  Bighnaraj Panigrahi ,  Hemant Kumar Rath ,  Anantha Simha

    IPC: H04W74/08 ,  H04W52/48 ,  H04W52/50 ,  H04W72/04 ,  H04W52/32 ,  H04W88/08

    Abstract: In LTE Random Access Channel (RACH) mechanism, devices use slotted ALOHA based protocol for RACH message exchange. During these messages exchange, if a device does not get a response from a base-station (BS), the device assumes that it is not able to reach base station due to insufficient transmission power and increases transmit power to reach to the base station. However, at higher density most of requests are lost due to collision. In existing RACH procedure, device unnecessarily ramps power in next RACH process which leads to power wastage in already resource constrained device. When there is failure of reception of RACH process, the present disclosure computes time delays (TD) based on a RSSI value obtained from a message transmitted by the BS, and initiates RACH process accordingly. The embodiments further enable requests transmission from device to BS by ramping power of the devices based on the computed TD.

    Method and system for optimal caching of content in an information centric networks (ICN)
    9.
    发明授权
    Method and system for optimal caching of content in an information centric networks (ICN) 有权

    公开(公告)号：US09860318B2

    公开(公告)日：2018-01-02

    申请号：US14966611

    申请日：2015-12-11

    Applicant: TATA Consultancy Services Limited

    Inventor： Bighnaraj Panigrahi ,  Samar Shailendra ,  Hemant Kumar Rath ,  Anantha Simha

    IPC: G06F15/167 ,  H04L29/08

    CPC classification number: H04L67/1097 ,  H04L67/2842 ,  H04L67/2852

    Abstract: The present application provides a method and system for optimal caching of content in the Information Centric Networks (ICN) and a cache replacement based on a content metric value. The method and system comprises requesting for a plurality of content by a user to a nearest local or edge ICN cache router; delivering by the local or edge ICN cache router the requested plurality of content to the user if it is available in its cache; else forwarding the request for the plurality of content to any of intermediate ICN cache router for finding source of the requested plurality of content; downloading the plurality of content in its downstream path; and storing the downloaded plurality of content based on a content metric value derived by a content metric system (CMS) based on a plurality of network parameters for the requested plurality of content.

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