Patents by Inventor Yashodhan Dandekar
Yashodhan Dandekar 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).
-
Patent number: 11949496Abstract: Systems, methods, and non-transitory media are provided for low latency handovers. An example method can include receiving, by a satellite, a schedule of communications between the satellite and one or more gateways; requesting, based on the schedule, a handover from a link between the satellite and a gateway to a different link between the satellite and the gateway or a different gateway; prior to a completion of the handover, processing packets bicasted over the link between the satellite and the gateway and the different link between the satellite and the gateway or the different gateway; performing the handover from the link between the satellite and the gateway to the different link between the satellite and the gateway or the different gateway; and after the handover, transmitting, by the satellite, one or more packets via the different link between the satellite and the gateway or the different gateway.Type: GrantFiled: June 2, 2021Date of Patent: April 2, 2024Assignee: Space Exploration Technologies Corp.Inventors: Chen Chen, Pavel Chikulaev, Sergii Ziuzin, David Sacks, Peter J. Worters, Darshan Purohit, Yashodhan Dandekar, Vladimir Skuratovich, Andrei Pushkin, Phillip E. Barber
-
Publication number: 20240064795Abstract: A method of operating an uplink scheduler as part of a medium access control scheduler on a satellite includes selecting, from a plurality of user terminals, a first number of zero-bandwidth request user terminals from the plurality of user terminals, selecting, from the plurality of user terminals, a second number of non-zero-bandwidth request user terminals from the plurality of user terminals, binning the second number of non-zero-bandwidth request user terminals into a plurality of bins based on a respective bandwidth requirement for each non-zero-bandwidth request user terminal and based on a minimum user terminal grant and allocating, according to a grant allocation algorithm, a respective grant of radio resources in an uplink frame to each user terminal of the plurality of user terminals into a respective bin of the plurality of bins in an order associated with increasing bandwidth needs. A downlink scheduler is also disclosed.Type: ApplicationFiled: August 31, 2023Publication date: February 22, 2024Inventors: Jayasuryan V. Iyer, Khasim Shaheed Shaik Mahammad, Yashodhan Dandekar, Ramakrishna Akella, Chen Chen, Phillip E. Barber, Peter J. Worters
-
Publication number: 20240040601Abstract: A method for downlink link adaptation includes receiving, from a satellite and at a user terminal, a first data packet data unit according to a first downlink modulation and coding scheme (MCS), computing error vector magnitude data associated with the first data packet data unit, generating, based on one or more of the error vector magnitude data, user terminal signal-to-noise-ratio feedback based on a constant times a previous user terminal signal-to-noise-ratio and a current user terminal signal-to-noise-ratio, and transmitting an uplink packet data unit having a downlink block error rate and the user terminal signal-to-noise-ratio feedback. A satellite runs a link adaptation algorithm based on the user terminal signal-to-noise-ratio feedback and block error rate to generate a second downlink MCS. The method includes receiving at the user terminal a second data packet data unit according to the second downlink MCS for the satellite-to-user-terminal downlink. Uplink link adaptation is also disclosed.Type: ApplicationFiled: October 12, 2023Publication date: February 1, 2024Inventors: Jayasuryan V. Iyer, Yashodhan Dandekar, Khasim Shaheed Shaik Mahammad, Ramakrishna Akella, Chen Chen, Phillip E. Barber, Peter J. Worters
-
Publication number: 20240031892Abstract: Systems, methods, and non-transitory media are provided for low latency handovers. An example method can include receiving, by a user terminal associated with a cell served by a satellite, a schedule of communications between the user terminal and one or more satellites, wherein the one or more satellites comprises the satellite and a different satellite, and wherein the schedule of communications is obtained by the user terminal from the satellite; requesting, based on the schedule, a handover from a beam of the satellite to a different beam of one of the satellite or the different satellite; performing the handover from the beam of the satellite to the different beam of the one of the satellite or the different satellite; and after the handover, transmitting, by the user terminal, one or more packets via the different beam of the one of the satellite or the different satellite.Type: ApplicationFiled: August 8, 2023Publication date: January 25, 2024Inventors: Chen Chen, Pavel Chikulaev, Sergii Ziuzin, David Sacks, Peter J. Worters, Darshan Purohit, Yashodhan Dandekar, Vladimir Skuratovich, Andrei Pushkin, Phillip E. Barber
-
Publication number: 20230396324Abstract: In an embodiment, a user terminal includes a communication module (CM) configured to generate an initial network entry request; an antenna assembly configured to find, in response to the initial network entry request, a satellite based on a search of a sky. The search of the sky includes sequentially changing a beam pointing direction of the antenna assembly. The satellite is assigned to downlink to a geographic cell associated with the user terminal. The user terminal includes a media access control (MAC) layer component configured to generate an uplink radio frame including a random access channel (RACH) request associated with the initial network entry request at a particular portion of the uplink radio frame for the satellite.Type: ApplicationFiled: August 4, 2023Publication date: December 7, 2023Inventors: Chen Chen, Darshan Purohit, Yashodhan Dandekar, Pavel Chikulaev, David Sacks, Peter J. Worters, Phillip E. Barber
-
Patent number: 11812372Abstract: Fifth generation (5G) non-standalone (NSA) radio access system employing virtual fourth generation (4G) master connection to enable dual system data connectivity. The 5G NSA radio access system employs a virtual 4G radio access node (RAN) to provide a logical master data connection to a user mobile communications device, and a 5G RAN to provide an additional, secondary high-speed data plane between the user mobile communications device to a core network. The virtual 4G RAN does not provide an actual 4G radio connection over-the-air to the user mobile communications device. Instead, the signaling transported between the user mobile communications device and the virtual 4G RAN is provided over a non-radio connection, such as an internet protocol (IP) connection. In this manner, the deployment of the 5G NSA radio access system employing the virtual 4G RAN can be achieved without updating existing 4G RANs and/or without deploying a new 4G RAN infrastructure.Type: GrantFiled: March 10, 2022Date of Patent: November 7, 2023Assignee: CORNING OPTICAL COMMUNICATIONS LLCInventors: Kalle Ahmavaara, Yashodhan A Dandekar
-
Patent number: 11800552Abstract: A method of operating an uplink scheduler as part of a medium access control scheduler on a satellite includes selecting, from a plurality of user terminals, a first number of zero-bandwidth request user terminals from the plurality of user terminals, selecting, from the plurality of user terminals, a second number of non-zero-bandwidth request user terminals from the plurality of user terminals, binning the second number of non-zero-bandwidth request user terminals into a plurality of bins based on a respective bandwidth requirement for each non-zero-bandwidth request user terminal and based on a minimum user terminal grant and allocating, according to a grant allocation algorithm, a respective grant of radio resources in an uplink frame to each user terminal of the plurality of user terminals into a respective bin of the plurality of bins in an order associated with increasing bandwidth needs. A downlink scheduler is also disclosed.Type: GrantFiled: June 3, 2021Date of Patent: October 24, 2023Assignee: SPACE EXPLORATION TECHNOLOGIES CORP.Inventors: Jayasuryan V. Iyer, Khasim Shaheed Shaik Mahammad, Yashodhan Dandekar, Ramakrishna Akella, Chen Chen, Phillip E. Barber, Peter J. Worters
-
Patent number: 11792832Abstract: A method for downlink link adaptation includes receiving, from a satellite and at a user terminal, a first data packet data unit according to a first downlink modulation and coding scheme (MCS), computing an error vector magnitude data associated with the first data packet data unit, generating, based on one or more of the error vector magnitude data, user terminal signal-to-noise-ratio feedback based on a constant times a previous user terminal signal-to-noise-ratio and a current user terminal signal-to-noise-ratio, and transmitting an uplink packet data unit having a downlink block error rate and the user terminal signal-to-noise-ratio feedback. A satellite runs a link adaptation algorithm based on the user terminal signal-to-noise-ratio feedback and block error rate to generate a second downlink MCS. The method includes receiving at the user terminal a second data packet data unit according to the second downlink MCS for the user terminal. An uplink link adaptation algorithm is also disclosed.Type: GrantFiled: June 3, 2021Date of Patent: October 17, 2023Assignee: Space Exploration Technologies Corp.Inventors: Jayasuryan V. Iyer, Yashodhan Dandekar, Khasim Shaheed Shaik Mahammad, Ramakrishna Akella, Chen Chen, Phillip E. Barber, Peter J. Worters
-
Publication number: 20230328611Abstract: A method of coordinating a plurality of radio access networks (RANs) includes aggregating, with a gateway, communications interfaces between a plurality of RANs and a packet core network through the gateway. A plurality of radio nodes (RNs) in each of the RANs is communicatively coupled to the gateway and to user equipment (UE) devices associated with the RNs in each of the RANs. The gateway also controls and coordinates mobility of the UE devices within and among the RANs. In addition, the gateway acts as a virtual enhanced NodeB (eNB) to the packet core network, thereby hiding the aggregated communications interfaces from the packet core network.Type: ApplicationFiled: June 13, 2023Publication date: October 12, 2023Inventors: Yashodhan Dandekar, Brian Patrick Dunn, Hithesh Nama, Behrooz Parsay, Jaspreet Singh, Shashikant Tiwari
-
Patent number: 11757526Abstract: In an embodiment, a user terminal includes a connection manager component configured to generate an initial network entry request; an antenna assembly communicatively coupled to the connection manager and configured, in response to the initial network entry request, to find a satellite based on a search of a sky, wherein the satellite comprises a satellite assigned to downlink to a geographic cell associated with the user terminal; and a media access control (MAC) layer component communicatively coupled to the connection manager, the MAC layer component configured to generate an uplink radio frame including a random access channel (RACH) request associated with the initial network entry request at a particular portion of the uplink radio frame for the satellite, wherein the particular portion is selected by the MAC layer component from among a plurality of portions of the uplink radio frame.Type: GrantFiled: May 28, 2021Date of Patent: September 12, 2023Assignee: Space Exploration Technologies Corp.Inventors: Chen Chen, Darshan Purohit, Yashodhan Dandekar, Pavel Chikulaev, David Sacks, Peter J. Worters, Phillip E. Barber
-
Patent number: 11729684Abstract: Systems, methods, and non-transitory media are provided for low latency handovers. An example method can include receiving, by a user terminal associated with a cell served by a satellite, a schedule of communications between the user terminal and one or more satellites; requesting, based on the schedule, a handover from a beam of the satellite to a different beam of one of the satellite or a different satellite; processing packets transmitted over the beam of the satellite and/or the different beam of the one of the satellite or the different satellite; performing the handover from the beam of the satellite to the different beam of the one of the satellite or the different satellite; and after the handover, transmitting, by the user terminal, one or more packets via the different beam of the one of the satellite or the different satellite.Type: GrantFiled: June 2, 2021Date of Patent: August 15, 2023Assignee: Space Exploration Technologies Corp.Inventors: Chen Chen, Pavel Chikulaev, Sergii Ziuzin, David Sacks, Peter J. Worters, Darshan Purohit, Yashodhan Dandekar, Vladimir Skuratovich, Andrei Pushkin, Phillip E. Barber
-
Patent number: 11700561Abstract: A method of coordinating a plurality of radio access networks (RANs) includes aggregating, with a gateway, communications interfaces between a plurality of RANs and a packet core network through the gateway. A plurality of radio nodes (RNs) in each of the RANs is communicatively coupled to the gateway and to user equipment (UE) devices associated with the RNs in each of the RANs. The gateway also controls and coordinates mobility of the UE devices within and among the RANs. In addition, the gateway acts as a virtual enhanced NodeB (eNB) to the packet core network, thereby hiding the aggregated communications interfaces from the packet core network.Type: GrantFiled: July 20, 2021Date of Patent: July 11, 2023Assignee: CORNING OPTICAL COMMUNICATIONS LLCInventors: Yashodhan A. Dandekar, Brian Dunn, Hithesh Nama, Behrooz Parsay, Jaspreet Singh, Shashikant Tiwari
-
Patent number: 11540301Abstract: A method of operating an uplink scheduler as part of a medium access control scheduler on a satellite includes selecting, from a plurality of user terminals, a first number of zero-bandwidth request user terminals from the plurality of user terminals, selecting, from the plurality of user terminals, a second number of non-zero-bandwidth request user terminals from the plurality of user terminals, binning the second number of non-zero-bandwidth request user terminals into a plurality of bins based on a respective bandwidth requirement for each non-zero-bandwidth request user terminal and based on a minimum user terminal grant and allocating, according to a grant allocation algorithm, a respective grant of radio resources in an uplink frame to each user terminal of the plurality of user terminals into a respective bin of the plurality of bins in an order associated with increasing bandwidth needs. A downlink scheduler is also disclosed.Type: GrantFiled: June 3, 2021Date of Patent: December 27, 2022Assignee: SPACE EXPLORATION TECHNOLOGIES CORP.Inventors: Jayasuryan V. Iyer, Khasim Shaheed Shaik Mahammad, Yashodhan Dandekar, Ramakrishna Akella, Chen Chen, Phillip E. Barber, Peter J. Worters
-
Publication number: 20220201599Abstract: Fifth generation (5G) non-standalone (NSA) radio access system employing virtual fourth generation (4G) master connection to enable dual system data connectivity. The 5G NSA radio access system employs a virtual 4G radio access node (RAN) to provide a logical master data connection to a user mobile communications device, and a 5G RAN to provide an additional, secondary high-speed data plane between the user mobile communications device to a core network. The virtual 4G RAN does not provide an actual 4G radio connection over-the-air to the user mobile communications device. Instead, the signaling transported between the user mobile communications device and the virtual 4G RAN is provided over a non-radio connection, such as an internet protocol (IP) connection. In this manner, the deployment of the 5G NSA radio access system employing the virtual 4G RAN can be achieved without updating existing 4G RANs and/or without deploying a new 4G RAN infrastructure.Type: ApplicationFiled: March 10, 2022Publication date: June 23, 2022Inventors: Kalle Ahmavaara, Yashodhan A Dandekar
-
Patent number: 11304126Abstract: Fifth generation (5G) non-standalone (NSA) radio access system employing virtual fourth generation (4G) master connection to enable dual system data connectivity. The 5G NSA radio access system employs a virtual 4G radio access node (RAN) to provide a logical master data connection to a user mobile communications device, and a 5G RAN to provide an additional, secondary high-speed data plane between the user mobile communications device to a core network. The virtual 4G RAN does not provide an actual 4G radio connection over-the-air to the user mobile communications device. Instead, the signaling transported between the user mobile communications device and the virtual 4G RAN is provided over a non-radio connection, such as an internet protocol (IP) connection. In this manner, the deployment of the 5G NSA radio access system employing the virtual 4G RAN can be achieved without updating existing 4G RANs and/or without deploying a new 4G RAN infrastructure.Type: GrantFiled: June 29, 2020Date of Patent: April 12, 2022Assignee: Corning Optical Communications LLCInventors: Kalle Ahmavaara, Yashodhan A Dandekar
-
Publication number: 20210352550Abstract: A method of coordinating a plurality of radio access networks (RANs) includes aggregating, with a gateway, communications interfaces between a plurality of RANs and a packet core network through the gateway. A plurality of radio nodes (RNs) in each of the RANs is communicatively coupled to the gateway and to user equipment (UE) devices associated with the RNs in each of the RANs. The gateway also controls and coordinates mobility of the UE devices within and among the RANs. In addition, the gateway acts as a virtual enhanced NodeB (eNB) to the packet core network, thereby hiding the aggregated communications interfaces from the packet core network.Type: ApplicationFiled: July 20, 2021Publication date: November 11, 2021Inventors: Yashodhan A. Dandekar, Brian Dunn, Hithesh Nama, Behrooz Parasay, Jaspreet Singh, Shashikant Tiwari
-
Patent number: 11071032Abstract: A method of coordinating a plurality of radio access networks (RANs) includes aggregating, with a gateway, communications interfaces between a plurality of RANs and a packet core network through the gateway. A plurality of radio nodes (RNs) in each of the RANs is communicatively coupled to the gateway and to user equipment (UE) devices associated with the RNs in each of the RANs. The gateway also controls and coordinates mobility of the UE devices within and among the RANs. In addition, the gateway acts as a virtual enhanced NodeB (eNB) to the packet core network, thereby hiding the aggregated communications interfaces from the packet core network.Type: GrantFiled: March 2, 2016Date of Patent: July 20, 2021Assignee: Corning Optical Communications LLCInventors: Behrooz Parsay, Shashikant Tiwari, Hithesh Nama, Yashodhan Dandekar, Brian Patrick Dunn, Jaspreet Singh
-
Publication number: 20200329425Abstract: Fifth generation (5G) non-standalone (NSA) radio access system employing virtual fourth generation (4G) master connection to enable dual system data connectivity. The 5G NSA radio access system employs a virtual 4G radio access node (RAN) to provide a logical master data connection to a user mobile communications device, and a 5G RAN to provide an additional, secondary high-speed data plane between the user mobile communications device to a core network. The virtual 4G RAN does not provide an actual 4G radio connection over-the-air to the user mobile communications device. Instead, the signaling transported between the user mobile communications device and the virtual 4G RAN is provided over a non-radio connection, such as an internet protocol (IP) connection. In this manner, the deployment of the 5G NSA radio access system employing the virtual 4G RAN can be achieved without updating existing 4G RANs and/or without deploying a new 4G RAN infrastructure.Type: ApplicationFiled: June 29, 2020Publication date: October 15, 2020Inventors: Kalle Ahmavaara, Yashodhan A. Dandekar
-
Patent number: 10771338Abstract: Systems and methods are disclosed for managing an aggregated self-organizing network (A-SON). In such, a plurality of small cells is grouped into clusters using available topology information. In one implementation, a subset of clusters is assigned to groups of a first type, such that the clusters within a group of the first type have minimal RF connectivity. For example, scanning or updating of RF parameters may then be coordinated such that adjacent clusters do not scan or update simultaneously but clusters within groups of the first type do have at least partially overlapping scans or updates. Similarly, subsets of clusters may be assigned to first and second groups of a second type, such that the clusters within a first group of the second type have sufficient coverage to provide RF connectivity to clusters within the second group, if the second group encounters a service interruption. Other benefits are also described.Type: GrantFiled: November 27, 2018Date of Patent: September 8, 2020Assignee: Corning Optical Communications LLCInventors: Yashodhan A. Dandekar, Brian Dunn, Cong Shen, Peter J Worters
-
Patent number: 10736025Abstract: Fifth generation (5G) non-standalone (NSA) radio access system employing virtual fourth generation (4G) master connection to enable dual system data connectivity. The 5G NSA radio access system employs a virtual 4G radio access node (RAN) to provide a logical master data connection to a user mobile communications device, and a 5G RAN to provide an additional, secondary high-speed data plane between the user mobile communications device to a core network. The virtual 4G RAN does not provide an actual 4G radio connection over-the-air to the user mobile communications device. Instead, the signaling transported between the user mobile communications device and the virtual 4G RAN is provided over a non-radio connection, such as an internet protocol (IP) connection. In this manner, the deployment of the 5G NSA radio access system employing the virtual 4G RAN can be achieved without updating existing 4G RANs and/or without deploying a new 4G RAN infrastructure.Type: GrantFiled: November 14, 2018Date of Patent: August 4, 2020Assignee: Corning Optical Communications LLCInventors: Kalle Ahmavaara, Yashodhan A Dandekar