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51.发明授权公开(公告)号：US11910339B2
公开(公告)日：2024-02-20
申请号：US17451952
申请日：2021-10-22
Applicant: Centre of Excellence in Wireless Technology , Indian Institute of Technology Madras (IIT Madras)
Inventor： Abhijeet Abhimanyu Masal , Priyanka Dey , Sunil Kaimalettu , Jeniston Deviraj Klutto Milleth , Bhaskar Ramamurthi
CPC classification number: H04W56/001 , G01S19/46 , H04B7/18513 , H04L5/0048
Abstract: A system and a method for performing uplink (UL) time synchronization in non-terrestrial networks (NTN) include Performing Downlink (DL) synchronization SSB signals. At least one information is received by a UE 102 from an NTN BS 104. A location information of a satellite is obtained using the at least one information received by the UE 102. Location of the UE 102 is estimated using one of GNSS receiver of the UE 102 and by processing at least one reference signal received by the UE 102 from multiple NTN-BS 104, using at least one multilateration technique and RTK. Timing Advance (TA) estimate is determined using the location of the satellite and location of the UE 102. TA applied is determined using the TA estimate and TA margin. PRACH is transmitted based on the TA applied and an information related to the TA applied is reported to the NTN-BS 104. Residual TA is estimated using the reported information related to the TA applied and the detected PRACH. The residual TA is indicated to the UE 102 for subsequent UL transmissions, in order to achieve the UL time synchronization in the NTN based communication network.
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公开(公告)号：US20230379929A1
公开(公告)日：2023-11-23
申请号：US18365912
申请日：2023-08-04
Inventor： Deepak Agarwal , Jyothi Pardhasarathy , Ebin Chacko , Budama Sree Charan Teja Reddy , Chandrasekaran Mohandoss , Thirunageswaram Ramachandran Ramya , Sunil Kaimalettu , Jeniston Deviraj Klutto Milleth , Bhaskar Ramamurthi
CPC classification number: H04W72/23 , H04L5/0048
Abstract: The present invention relates to a method of reducing blind decoding attempts by a User Equipment (UE) in a telecommunication network. The method comprises configuring a Search Space (SS) configuration to the UE. A Base Station (BS) signals one of a subset of Aggregation Levels (ALs) to be monitored based on channel quality of the UE and an associated time period, and a value of multiplication factor (k) and an associated time period. The UE iteratively monitors a Physical Downlink Control Channel (PDCCH) on the ALs signalled by the BS till the UE stops receiving a new configuration. The UE performs one of adopting an original configuration, requesting the BS for a new configuration, utilizing a default configuration or utilizing an original configuration.
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53.发明公开公开(公告)号：US20230345553A1
公开(公告)日：2023-10-26
申请号：US17420632
申请日：2020-03-27
Applicant: Centre of Excellence in Wireless Technology , Indian Institute of Technology Madras (IIT Madras)
Inventor： Deepak Padmanabhan Maya , Chandrasekaran Mohandoss , Thirunageswaram Ramachandran Ramya , Jeniston Deviraj Klutto Milleth , Bhaskar Ramamurthi
Abstract: A method includes receiving at least one parameter associated with the each of at least one IAB node (100), determining a resource configuration comprising of resources to be allocated to the DU of each of the at least one IAB node (100) based on at least one resource allocation criteria and the at least one parameter, indicating the resource configuration for the DU of each of the at least one IAB node (100). The method includes signaling a timing advance (TA) value to at least one IAB node (100) based on a plurality of parameters, evaluating at least one of a UL-Tx timing and a DL-Tx timing based on the TA value signaled, configuring a cell-specific signal and channel (CSSC) to the DU of the reference node based on the at least one parameter, and timing alignment in a IAB network (1000).
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54.发明授权公开(公告)号：US11523429B2
公开(公告)日：2022-12-06
申请号：US15863911
申请日：2018-01-06
Applicant: Centre of Excellence in Wireless Technology , Indian Institute of Technology Madras (IIT Madras)
Inventor： Nithin Srinivasan , Dhivagar Baskaran , Chandrasekaran Mohandoss , Sunil Kaimalettu , Jeniston Deviraj Klutto Milleth , Bhaskar Ramamurthi
IPC: H04W74/04 , H04W72/12 , H04W72/04 , H04W4/20 , H04W76/27 , H04W40/12 , H04W74/08 , H04L1/18 , H04W74/00 , H04W76/30
Abstract: Embodiments herein provide a method and system for managing Grant-free data transmission in a radio communication network. The proposed method includes composing, by a Base Station (BS), a Select Signal (SS) for a transceiver device, where the SS is configured to control a grant-free data transmission from the transceiver device. Further, the proposed method includes transmitting, by the BS, the SS to the transceiver device. Further, the proposed method includes receiving, by a transceiver device, the SS from the BS. Further, the proposed method includes decoding, by the transceiver device, the SS and furthermore, the proposed method includes controlling, by the transceiver device, a data transmission by one of activating the grant-free data transmission from the transceiver device in response to successful decoding of the SS, and deactivating the grant-free data transmission from the transceiver device in response to unsuccessful decoding of the SS.
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公开(公告)号：US11411665B2
公开(公告)日：2022-08-09
申请号：US16739594
申请日：2020-01-10
Applicant: Centre of Excellence in Wireless Technology , Indian Institute of Technology Madras (IIT Madras)
Inventor： Abhijeet Abhimanyu Masal , Priyanka Dey , Sunil Kaimalettu , Jeniston Deviraj Klutto Milleth , Bhaskar Ramamurthi
IPC: H04B17/345 , H04B17/318 , H04L5/00 , H04W24/10 , H04W72/00 , H04W72/08 , H04J11/00
Abstract: The method includes configuring a first CLI-RS configuration at a first UE (200a). Further, the method includes configuring a second CLI-RS configuration at a second UE (200b). Further, the method includes generating a CLI-RS sequence using a common CLI-RS reference point known to the first UE (200a) and the second UE (200b). Further, the method includes filling the CLI-RS sequence in the first set of CLI-RS resources indicated in the first CLI-RS configuration. Further, the method includes transmitting the CLI-RS sequence filled in the first set of CLI-RS resources indicated in the first CLI-RS configuration to the second UE (200b). Further, the method includes receiving the CLI-RS sequence transmitted by the first UE (200a). Further, the method includes processing the received CLI-RS sequence based on the second CLI-RS configuration.
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Patent Agency Ranking
56.发明申请公开(公告)号：US20210144718A1
公开(公告)日：2021-05-13
申请号：US17091261
申请日：2020-11-06
Applicant: Centre of Excellence in Wireless Technology , Indian Institute of Technology Madras (IIT Madras)
Inventor： Pardhasarathy Jyothi , Deepak Padmanabhan Maya , Chandrasekaran Mohandoss , Thirunageswaram Ramachandran Ramya , Klutto Milleth Jeniston Deviraj , Bhaskar Ramamurthi
Abstract: Accordingly embodiments herein achieve signaling method and system (2000) for provisioning signalling in an Integrated Access Backhaul (IAB) network (1000). The method includes providing a set of modifications in uplink and downlink signaling for an IAB node (100). The modifications either help to reduce the control channel payload or enable more flexible signaling of resources, improve efficient control channel scheduling and also avoid conflicts that might arise due to discrepancies between semi static and dynamic resource allocation.
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57.发明申请公开(公告)号：US20210126752A1
公开(公告)日：2021-04-29
申请号：US17138545
申请日：2020-12-30
Applicant: Centre of Excellence in Wireless Technology , Indian Institute of Technology Madras (IIT Madras)
Inventor： Abhijeet Abhimanyu Masal , Priyanka Dey , Sunil Kaimalettu , Dhivagar Baskaran , Paka Venkata Sriharsha , Jeniston Deviraj Klutto Milleth , Bhaskar Ramamurthi
Abstract: Embodiments herein provides a method and apparatus for data communication in an OFDM system. The method comprising receiving by a second OFDM apparatus a plurality of parameters, a signal comprising data and at least one of a Reference Signal (RS) and a message from a first OFDM apparatus. The plurality of parameters comprises at least one of a numerology of the first apparatus, a numerology of the second apparatus, a ratio of numerology of the first apparatus to the second apparatus and a measurement window. The method includes filtering a desired band comprising the at least one of the RS and the message from the received signal, removing a cyclic prefix from the filtered signal, and decoding at least one of the RS and the message from the signal with adjusting a circular shift in the set of symbols based on the plurality of parameters.
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公开(公告)号：US10911191B2
公开(公告)日：2021-02-02
申请号：US16584003
申请日：2019-09-26
Applicant: Centre of Excellence in Wireless Technology , Indian Institute of Technology Madras (IIT Madras)
Inventor： Abhijeet Abhimanyu Masal , Priyanka Dey , Sunil Kaimalettu , Dhivagar Baskaran , Paka Venkata Sriharsha , Jeniston Deviraj Klutto Milleth , Bhaskar Ramamurthi
Abstract: Accordingly, the invention provides a method and apparatus for managing communication operations in an Orthogonal Frequency Division Multiplexing (OFDM) system. Further the method includes generating, by a first OFDM apparatus (100), a signal comprising data and at least one of a Reference Signal (RS) and a message, the signal is generated by repeating the at least one of the RS and the message over a set of OFDM symbols using a resource mapper, performing an Inverse Fourier Transform operation (IFFT) according to a numerology of a first OFDM apparatus, adding a Cyclic Prefix (CP) to the data, and adding a block CP to the at least one of the repeated RS and the message. Further, the method includes transmitting, by the first OFDM apparatus (100), the signal to a second OFDM apparatus (200).
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59.发明申请公开(公告)号：US20200228213A1
公开(公告)日：2020-07-16
申请号：US16739594
申请日：2020-01-10
Applicant: Centre of Excellence in Wireless Technology , Indian Institute of Technology Madras (IIT Madras)
Inventor： Abhijeet Abhimanyu Masal , Priyanka Dey , Sunil Kaimalettu , Jeniston Deviraj Klutto Milleth , Bhaskar Ramamurthi
IPC: H04B17/345 , H04W72/08 , H04J11/00 , H04L5/00 , H04W24/10 , H04B17/318
Abstract: The method includes configuring a first CLI-RS configuration at a first UE (200a). Further, the method includes configuring a second CLI-RS configuration at a second UE (200b). Further, the method includes generating a CLI-RS sequence using a common CLI-RS reference point known to the first UE (200a) and the second UE (200b). Further, the method includes filling the CLI-RS sequence in the first set of CLI-RS resources indicated in the first CLI-RS configuration. Further, the method includes transmitting the CLI-RS sequence filled in the first set of CLI-RS resources indicated in the first CLI-RS configuration to the second UE (200b). Further, the method includes receiving the CLI-RS sequence transmitted by the first UE (200a). Further, the method includes processing the received CLI-RS sequence based on the second CLI-RS configuration.
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公开(公告)号：US10122426B2
公开(公告)日：2018-11-06
申请号：US15204477
申请日：2016-07-07
Inventor： Jeniston Deviraj Klutto Milleth , Chandrasekaran Mohandoss , Sendilramkumar Devar , Thulasiram Jonna , Abhijeet Masal , Bhaskar Ramamurthi
IPC: H04B7/04 , H04B7/0456
Abstract: Embodiments herein provide a method for beam steering in a Multiple Input Multiple Output (MIMO) system. The method includes steering a transmit beam using a precoder matrix determined based on a plurality of parameters, wherein the transmit beam is formed using at least one of a weight of each antenna element, a number of antenna elements, and an inter-antenna element spacing.
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