Patents by Inventor Subhas Chandra Mondal
Subhas Chandra Mondal 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).
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Patent number: 11533091Abstract: The disclosure relates to method and system for providing a MIMO transceiver in high speed mobility. The method includes dividing, by the wireless MIMO transmitter, transmission data into a plurality of transmit chains corresponding to an antenna. The method further includes generating for the plurality of transmit chains, a Circularly Pulse Shaped Orthogonal Time Frequency Space (CPS-OTFS) time frequency signal based on a first primary parameter. Value of the first primary parameter is determined based on a first predefined algorithm. The method further includes converting for the plurality of transmit chains, the CPS-OTFS time frequency signal to a CPS-OTFS time domain signal based on at least one of a plurality of secondary parameters. A first plurality of N-point Inverse Fast Fourier Transform (IFFT) are employed on the CPS-OTFS time frequency signal. The first plurality corresponds to the number of sub-carriers and N corresponds to a set of time symbols.Type: GrantFiled: August 11, 2021Date of Patent: December 20, 2022Assignee: Wipro LimitedInventors: Shashank Tiwari, Suvra Sekhar Das, Subhas Chandra Mondal, Parag Aggarwal
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Publication number: 20220311486Abstract: The disclosure relates to method and system for providing a MIMO transceiver in high speed mobility. The method includes dividing, by the wireless MIMO transmitter, transmission data into a plurality of transmit chains corresponding to an antenna. The method further includes generating for the plurality of transmit chains, a Circularly Pulse Shaped Orthogonal Time Frequency Space (CPS-OTFS) time frequency signal based on a first primary parameter. Value of the first primary parameter is determined based on a first predefined algorithm. The method further includes converting for the plurality of transmit chains, the CPS-OTFS time frequency signal to a CPS-OTFS time domain signal based on at least one of a plurality of secondary parameters. A first plurality of N-point Inverse Fast Fourier Transform (IFFT) are employed on the CPS-OTFS time frequency signal. The first plurality corresponds to the number of sub-carriers and N corresponds to a set of time symbols.Type: ApplicationFiled: August 11, 2021Publication date: September 29, 2022Inventors: Shashank TIWARI, Suvra Sekhar DAS, Subhas Chandra MONDAL, Parag AGGARWAL
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Patent number: 11317423Abstract: A method and system for identifying and mitigating interference caused by a rogue User Equipment (UE) in a Light Fidelity (Li-Fi) communication network is disclosed. The method includes detecting interference caused by the rogue UE to at least one UE from a set of UEs associated with a Li-Fi access point in the Li-Fi communication network. The method further includes assigning a unique first transmission channel to each of the at least one UE in response to detecting the interference. The unique first transmission channel assigned to each of the at least one UE is distinguishable from a second transmission channel associated with the rogue UE. The method further includes scheduling data transmission from each of the at least one UE to the Li-Fi access point based on the associated unique first transmission channel.Type: GrantFiled: July 24, 2020Date of Patent: April 26, 2022Assignee: Wipro LimitedInventors: Subhas Chandra Mondal, Shailesh Prabhu
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Patent number: 11233566Abstract: A method and system for managing interference between transmission sources in an Optical Camera Communication (OCC) network is disclosed. The method includes receiving interference information associated with a set of transmission sources. Each of the set of transmission sources include a set of light sources configured to display one of a plurality of colors. The method further includes assigning a unique guard band to each of the set of transmission sources. The method includes sharing details of the unique guard band assigned to a first transmission source within the set of transmission sources with the camera. The camera is configured as the receiver of the first transmission source. The method further includes instructing the camera to accept data transmitted by the first transmission source based on the assigned unique guard band and drop data transmitted by the remaining set of transmission sources.Type: GrantFiled: January 28, 2020Date of Patent: January 25, 2022Assignee: Wipro LimitedInventors: Subhas Chandra Mondal, Shailesh Prabhu
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Patent number: 11218561Abstract: This disclosure relates to system and method for managing cache data in a network through edge nodes. The method includes receiving set of first node parameters, set of Mobile Edge Computing (MEC) node association metrics, and set of data request parameters from the user device; identifying a variation in at least one of the set of first node parameters, the set of MEC node association metrics, and the set of data request parameters; selecting a second edge node from the plurality of edge nodes to store the cache data based on a set of second node parameters, the set of MEC node association metrics, and the set of data request parameters, when variation is above predefined threshold; associating the second edge node with the user device to store the cache data for the user device; and dynamically managing cache data for the user device in the second edge node.Type: GrantFiled: April 27, 2021Date of Patent: January 4, 2022Assignee: Wipro LimitedInventors: Subhas Chandra Mondal, Shailesh Prabhu, Aniket De
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Publication number: 20210360640Abstract: A method and system for identifying and mitigating interference caused by a rogue User Equipment (UE) in a Light Fidelity (Li-Fi) communication network is disclosed. The method includes detecting interference caused by the rogue UE to at least one UE from a set of UEs associated with a Li-Fi access point in the Li-Fi communication network. The method further includes assigning a unique first transmission channel to each of the at least one UE in response to detecting the interference. The unique first transmission channel assigned to each of the at least one UE is distinguishable from a second transmission channel associated with the rogue UE. The method further includes scheduling data transmission from each of the at least one UE to the Li-Fi access point based on the associated unique first transmission channel.Type: ApplicationFiled: July 24, 2020Publication date: November 18, 2021Inventors: Subhas Chandra MONDAL, Shailesh PRABHU
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Patent number: 11100784Abstract: The disclosure relates to method and system for detecting and notifying actionable events during surveillance. The method may include receiving initial multi-modal inputs from a geo-location during surveillance, determining an incident of interest based on an analysis of the initial multi-modal inputs, and collecting additional multi-modal inputs from at least one access device corresponding to at least one person in the geo-location upon determination of the incident of interest. The method may further include determining the actionable event based on an analysis of the initial and the additional multi-modal inputs, and providing a notification of the actionable event to one or more appropriate authorities.Type: GrantFiled: March 4, 2020Date of Patent: August 24, 2021Assignee: Wipro LimitedInventors: Subhas Chandra Mondal, Vishal Kumar Pandey
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Publication number: 20210201652Abstract: The disclosure relates to method and system for detecting and notifying actionable events during surveillance. The method may include receiving initial multi-modal inputs from a geo-location during surveillance, determining an incident of interest based on an analysis of the initial multi-modal inputs, and collecting additional multi-modal inputs from at least one access device corresponding to at least one person in the geo-location upon determination of the incident of interest. The method may further include determining the actionable event based on an analysis of the initial and the additional multi-modal inputs, and providing a notification of the actionable event to one or more appropriate authorities.Type: ApplicationFiled: March 4, 2020Publication date: July 1, 2021Inventors: Subhas Chandra MONDAL, Vishal Kumar Pandey
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Patent number: 11049040Abstract: Disclosed subject matter relates to supervised machine learning including a method and system for generating synchronized labelled training dataset for building a learning model. The training data generation system determines a timing advance factor to achieve time synchronization between User Equipment (UE) and network nodes, by signalling the UE to initiate playback of the multimedia content based on the timing advance factor. The training data generation system receives network Key Performance Indicator (KPI) data from the network nodes and a user experience data from the UE, concurrently, for the streamed multimedia content, and performs timestamp based correlation to generate a synchronized labelled training dataset for building a learning model.Type: GrantFiled: March 26, 2018Date of Patent: June 29, 2021Assignee: Wipro LimitedInventors: Subhas Chandra Mondal, Aravind Ravi, Pallavi Suresh Mastiholimath
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Publication number: 20210184765Abstract: A method and system for managing interference between transmission sources in an Optical Camera Communication (OCC) network is disclosed. The method includes receiving interference information associated with a set of transmission sources. Each of the set of transmission sources include a set of light sources configured to display one of a plurality of colors. The method further includes assigning a unique guard band to each of the set of transmission sources. The method includes sharing details of the unique guard band assigned to a first transmission source within the set of transmission sources with the camera. The camera is configured as the receiver of the first transmission source. The method further includes instructing the camera to accept data transmitted by the first transmission source based on the assigned unique guard band and drop data transmitted by the remaining set of transmission sources.Type: ApplicationFiled: January 28, 2020Publication date: June 17, 2021Inventors: Subhas Chandra MONDAL, Shailesh PRABHU
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Publication number: 20210184820Abstract: A method and system for managing interference between a set of Light Fidelity (Li-Fi) access points is disclosed. The method includes receiving a plurality of uplink data frames. Each of the plurality of uplink data frames includes a response that includes one of an Acknowledgement (ACK) and a Negative Acknowledgment (NACK) for the associated downlink test frame and a Channel Quality Indication (CQI) for the associated Li-Fi access point. The method further includes detecting presence of the User Equipment (UE) in an interference region of the set of Li-Fi access points. The method includes attaching the UE with a first Li-Fi access point having the highest CQI and scheduling data transmission from the set of Li-Fi access points in a mutually exclusive time slot. The UE accepts data received from the attached Li-Fi access point and drops data received from remaining set of Li-Fi access points.Type: ApplicationFiled: January 28, 2020Publication date: June 17, 2021Inventors: Subhas Chandra MONDAL, Shailesh PRABHU
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Patent number: 11038661Abstract: A method and system for managing interference between a set of Light Fidelity (Li-Fi) access points is disclosed. The method includes receiving a plurality of uplink data frames. Each of the plurality of uplink data frames includes a response that includes one of an Acknowledgement (ACK) and a Negative Acknowledgment (NACK) for the associated downlink test frame and a Channel Quality Indication (CQI) for the associated Li-Fi access point. The method further includes detecting presence of the User Equipment (UE) in an interference region of the set of Li-Fi access points. The method includes attaching the UE with a first Li-Fi access point having the highest CQI and scheduling data transmission from the set of Li-Fi access points in a mutually exclusive time slot. The UE accepts data received from the attached Li-Fi access point and drops data received from remaining set of Li-Fi access points.Type: GrantFiled: January 28, 2020Date of Patent: June 15, 2021Assignee: Wipro LimitedInventors: Subhas Chandra Mondal, Shailesh Prabhu
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Patent number: 11025338Abstract: A method and system for identifying and mitigating interference caused by a rogue Light Fidelity (Li-Fi) access point in a Li-Fi communication network is disclosed. The method includes detecting interference caused by the rogue Li-Fi access point in a first set of Light Emitting Diodes (LEDs) from a plurality of LEDs within the Li-Fi access point. The plurality of LEDs is arranged in a predefined pattern within the Li-Fi access point, and wherein a coverage area associated with the Li-Fi access point is equally divided amongst the plurality of LEDs. The method further includes disabling data transmission from the first set of LEDs in response to detecting the interference. The method further includes enabling data transmission from a second set of LEDs from the plurality of LEDs. The second set of LEDs is unaffected by interference caused by the rogue Li-Fi access point.Type: GrantFiled: March 13, 2020Date of Patent: June 1, 2021Assignee: Wipro LimitedInventors: Subhas Chandra Mondal, Shailesh Prabhu
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Patent number: 10958342Abstract: A method and system for identifying and mitigating interference caused by a rogue transmission source in an Optical Camera Communication (OCC) network is disclosed. The method includes receiving information from a plurality of transmission sources. Each of the plurality of transmission sources is within a capture area of a camera. Each of the plurality of transmission sources comprises a set of light sources configured to display one of a plurality of color codes. The method further includes detecting, through the camera, an interference between a serving transmission source associated with the camera and a non-serving transmission source. The serving transmission source belongs to the plurality of transmission sources. The method further includes establishing the non-serving transmission source as the rogue transmission source, when the non-serving transmission source is not registered with a master coordinator within the OCC network.Type: GrantFiled: March 31, 2020Date of Patent: March 23, 2021Assignee: Wipro LimitedInventors: Subhas Chandra Mondal, Shailesh Prabhu
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Patent number: 10873698Abstract: A method and a system for improving efficiency of a bi-directional optical camera communication between a first OCC device and a second OCC device are disclosed. In an embodiment, the method may include estimating, by a first OCC device comprising a first display device and a first camera device, a first transmission parameter with respect to the first display device and a first reception parameter with respect to the first camera device. The first reception parameter is based on a second transmission parameter of a second OCC device or a channel condition parameter, and the second transmission parameter is derived from an analysis of information captured by the second OCC device from the first OCC device. The method may further include dynamically modifying, by the first OCC device, the first transmission parameter based on the first reception parameter in order to maximize throughput of OCC.Type: GrantFiled: August 16, 2019Date of Patent: December 22, 2020Assignee: Wipro LimitedInventors: Subhas Chandra Mondal, Shailesh Prabhu
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Publication number: 20200396377Abstract: A method and a system for improving efficiency of a bi-directional optical camera communication between a first OCC device and a second OCC device are disclosed. In an embodiment, the method may include estimating, by a first OCC device comprising a first display device and a first camera device, a first transmission parameter with respect to the first display device and a first reception parameter with respect to the first camera device. The first reception parameter is based on a second transmission parameter of a second OCC device or a channel condition parameter, and the second transmission parameter is derived from an analysis of information captured by the second OCC device from the first OCC device. The method may further include dynamically modifying, by the first OCC device, the first transmission parameter based on the first reception parameter in order to maximize throughput of OCC.Type: ApplicationFiled: August 16, 2019Publication date: December 17, 2020Inventors: Subhas Chandra Mondal, Shailesh Prabhu
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Patent number: 10674319Abstract: A method and system for federating location of a point of emergency across a plurality of networks is disclosed. The method includes receiving, by a Location Service Orchestrator (LSO), an emergency alert from a User Equipment (UE), wherein the UE is communicatively coupled with a first network from the plurality of networks. The method further includes determining, by the LSO, a location of the UE based on the received emergency alert. The method includes refining, by the LSO, the determined location based on a network initiated location determination mechanism of the first network, when the accuracy of determined location of the UE is below a pre-defined threshold for locational accuracy. The method further includes federating, by the LSO, the refined location of the UE across the plurality of networks.Type: GrantFiled: February 15, 2019Date of Patent: June 2, 2020Assignee: Wipro LimitedInventors: Subhas Chandra Mondal, Vishal Kumar Pandey, Pallavi Suresh Mastiholimath
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Patent number: 10568005Abstract: This disclosure relates generally to cloud radio access network (C-RAN), and more particularly to X2-messaging in the C-RAN. The method may include receiving, by a control unit in the CRAN, in the C-RAN, a request from a first virtual eNodeB (eNB) associated with a source eNodeB (eNB) to establish a X2 interface with each virtual eNB associated with a set of neighbor eNBs. A second virtual eNB associated with a target eNB may be selected from the virtual eNBs associated with the set of neighbor eNBs. A check may be made to determine whether the first virtual eNB and the second virtual eNB associated with the target eNB are co-located on same datacenter in the C-RAN. At least one X2 message may be transmitted between the first virtual eNB and the second virtual eNB that are co-located on the datacenter based on eNB information accessed from a shared storage.Type: GrantFiled: March 27, 2018Date of Patent: February 18, 2020Assignee: Wipro LimitedInventors: Gopinath Das, Subhas Chandra Mondal, Shyam Sundar Pal
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Publication number: 20200008084Abstract: This disclosure relates to method and system for maintaining user application session performances (UASP's) in a wireless communication network. In one embodiment, the method includes determining an aggregate UASP for each user and for each application at a serving base station and at each neighboring base station based on gathered performance data, determining an aggregate application performance level for each application at the serving base station and at each neighboring base station based on the aggregate UASP's for the users at the serving base station and at each of the neighboring base stations respectively, determining an aggregate application performance based on the aggregate application performance levels for the applications at the serving base station and at the neighboring base stations, and maintaining the UASP's by determining a corrective network action based on an average aggregate application performance at the serving base station and at each of the neighboring base stations.Type: ApplicationFiled: August 20, 2018Publication date: January 2, 2020Inventors: Amartya Kumar Das, Subhas Chandra Mondal, Subhrajyoti Panja, Uttam Sarkar
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Patent number: 10524145Abstract: This disclosure relates to method and system for maintaining user application session performances (UASP's) in a wireless communication network. In one embodiment, the method includes determining an aggregate UASP for each user and for each application at a serving base station and at each neighboring base station based on gathered performance data, determining an aggregate application performance level for each application at the serving base station and at each neighboring base station based on the aggregate UASP's for the users at the serving base station and at each of the neighboring base stations respectively, determining an aggregate application performance based on the aggregate application performance levels for the applications at the serving base station and at the neighboring base stations, and maintaining the UASP's by determining a corrective network action based on an average aggregate application performance at the serving base station and at each of the neighboring base stations.Type: GrantFiled: August 20, 2018Date of Patent: December 31, 2019Assignee: Wipro LimitedInventors: Amartya Kumar Das, Subhas Chandra Mondal, Subhrajyoti Panja, Uttam Sarkar