Patents by Inventor Ashok Ranganath

Ashok Ranganath 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).

  • Publication number: 20220216937
    Abstract: A system and method for downlink feedback in communications between a station and an access point. In some embodiments, the method includes: receiving, from the access point, by the station, a null data packet announcement (NDPA) including a first number of spatial streams, and sending, by the station, to the access point, a Compressed Beamforming Report (CBR) including a second number of spatial streams, different from the first number of spatial streams; or sending, by the station, to the access point, an Operating Mode Indication (OMI) declaring a change in a station Modulation Coding Scheme (MCS) capability for a third number of spatial streams; or sending, by the station, to the access point, an Association Request including a declared Single-User (SU) MCS capability for a first bandwidth and a declared Multi-User (MU) MCS capability for the first bandwidth, the MU MCS capability being different from the SU MCS capability.
    Type: Application
    Filed: October 8, 2021
    Publication date: July 7, 2022
    Inventors: Pavankumar VEERASHETTY, Wook Bong LEE, Ashok RANGANATH, Ravi GIDVANI, Shailender KARMUCHI, Srinivas KANDALA
  • Patent number: 11357025
    Abstract: A method of providing multi-link operation channel access in a multi-link network includes initiating a first backoff countdown and a second backoff countdown associated with a first link and a second link of the multi-link network, respectively, and in response to the first backoff countdown reaching zero, determining whether the second backoff countdown is less than or equal to an aggregation threshold, and in response to determining that the second backoff countdown is less than or equal to the aggregation threshold, transmitting a first frame and a second frame on the first and second links.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: June 7, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sharan Naribole, Srinivas Kandala, Wook Bong Lee, Ashok Ranganath
  • Publication number: 20220167265
    Abstract: A method and device are provided for dynamic access point (AP) selection by a coordinator in a coordinated AP group. The coordinator of the coordinated AP group receives one or more link quality metrics for each link between a station (STA) and each of a plurality of member APs in the coordinated AP group, from the plurality of member APs. The coordinator selects an anchor AP for the STA from the plurality of member APs based on the one or more link quality metrics for each link. The anchor AP is used to relay transmissions between the STA and the coordinator. Authentication of the STA with the anchor AP is shared with all APs in the coordinated AP group, allowing the STA to utilize any subsequently selected anchor AP to relay transmissions without re-authentication.
    Type: Application
    Filed: February 4, 2022
    Publication date: May 26, 2022
    Inventors: Tianyu WU, Wook Bong Lee, Ashok Ranganath, Srinivas Kandala
  • Publication number: 20220116955
    Abstract: Methods and apparatuses are provided for a medium access protocol at non-simultaneous transmission and reception (STR) access points (APs) and end user devices (STAs). A method performed by a non-STR MAP includes identifying a medium state of a first channel of the MAP; and adapting transmission on a second channel of the MAP, based on the identified medium state of the first channel.
    Type: Application
    Filed: February 8, 2021
    Publication date: April 14, 2022
    Inventors: Sharan NARIBOLE, Srinivas Kandala, Ashok Ranganath
  • Patent number: 11272442
    Abstract: A system and method for dynamic access point (AP) selection by a station (STA) in a coordinated AP group is herein disclosed. According to an embodiment, a STA obtains one or more link quality metrics for each link between the STA and each of a plurality of member APs in the coordinated AP group. The STA dynamically selects at least one anchor AP for the STA from the plurality of member APs based on the one or more link quality metrics for each link. The at least one anchor AP being used to relay transmission between the STA and a coordinator of the coordinated AP group. Authentication of the STA with the at least one anchor AP is shared with all APs in the coordinated AP group, allowing the STA to utilize any subsequently selected anchor AP to relay transmissions without re-authentication.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: March 8, 2022
    Inventors: Tianyu Wu, Wook Bong Lee, Ashok Ranganath, Srinivas Kandala
  • Publication number: 20220046621
    Abstract: A wireless device may include a transceiver configured to communicate through a first link and a second link. The wireless device may be configured to indicate, through the transceiver, a number of spatial streams associated with the first link. The wireless device may include one or more radio frequency (RF) chains and may be configured to indicate a sharing capability of the one or more RF chains between the first and second links. The wireless device may be configured to perform a collision avoidance operation based on switching an RF chain from the first link to the second link. The wireless device may be configured use an RF chain on the first link based on the availability of the first link. A method of performing a sounding operation may include initiating a sounding sequence on a link based on a sounding feedback capability of a wireless device.
    Type: Application
    Filed: July 12, 2021
    Publication date: February 10, 2022
    Inventors: Srinivas KANDALA, Wook Bong LEE, Ashok RANGANATH, Sharan NARIBOLE
  • Publication number: 20220030596
    Abstract: A method and system for providing transitioning a station (STA) to an uplink multi-user (UL MU) disable mode and to a UL MU enable mode is provided. According to one embodiment, a method includes entering, with the STA, a UL MU enable mode, and determining whether to transition the STA to a UL MU disable mode based on a predetermined interrupt condition. The predetermined interrupt condition is provided by the STA in the UL MU enable mode to transition the STA to the UL MU disable mode when the STA is unable to respond to a UL MU operation.
    Type: Application
    Filed: October 6, 2021
    Publication date: January 27, 2022
    Inventors: Ravi GIDVANI, Sharan NARIBOLE, Ashok RANGANATH
  • Patent number: 11234243
    Abstract: A method and system for providing transitioning a station (STA) to an uplink multi-user (UL MU) disable mode and to a UL MU enable mode is provided. According to one embodiment, a method includes entering, with the STA, a UL MU enable mode, and determining whether to transition the STA to a UL MU disable mode based on a predetermined interrupt condition or actively monitoring conditions of the STA.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: January 25, 2022
    Inventors: Ravi Gidvani, Sharan Naribole, Ashok Ranganath
  • Publication number: 20210345267
    Abstract: A method for providing a mode of wireless local area network (WLAN) operation is disclosed. The method includes: sending an association request from a wireless station (STA) over a discovery channel; receiving an association response at the STA over the discovery channel in response to the association request; and associating the STA to provide a multi-user (MU) enhanced distributed channel access (EDCA) mode using a scheduled access channel.
    Type: Application
    Filed: July 12, 2021
    Publication date: November 4, 2021
    Inventors: Ravi Gidvani, Ashok Ranganath, Wook Bong Lee, Sharan Naribole, Shailender Karmuchi
  • Patent number: 11134501
    Abstract: A method and system for providing transitioning a station (STA) to an uplink multi-user (UL MU) disable mode and to a UL MU enable mode is provided. According to one embodiment, a method includes entering, with the STA, a UL MU enable mode, and determining whether to transition the STA to a UL MU disable mode based on a predetermined interrupt condition or actively monitoring conditions of the STA.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: September 28, 2021
    Inventors: Ravi Gidvani, Sharan Naribole, Ashok Ranganath
  • Publication number: 20210289442
    Abstract: Systems and methods for managing use of power of a wireless communication device configured to communicate over a plurality of radio links. A criterion is detected, and one of the plurality of radio links is selected as a selected radio link based on detecting the criterion. Operation of the selected radio link is switched from a first operating mode to a second operating mode, and operation of one or more remaining radio links of the plurality of radio links is disabled. In response to switching operation of the selected radio link to the second operating mode, the selected radio link oscillates between an awake state and an asleep state. Radio traffic information for the plurality of radio links is received, via the selected radio link, during the awake state.
    Type: Application
    Filed: January 27, 2021
    Publication date: September 16, 2021
    Inventors: Sharan Naribole, Srinivas Kandala, Wook Bong Lee, Ashok Ranganath
  • Publication number: 20210289499
    Abstract: Disclosed is a method of setting conditions for an access point (AP) to be included in an AP candidate set of a coordinating AP for a transmission opportunity (TXOP), including setting a first primary channel of the AP as part of the AP candidate set of the coordinating AP within a basic service set (BSS) operating bandwidth of the coordinating AP, and coordinating AP updates in the AP candidate set when a coordinated AP that is part of the AP candidate set performs a channel switch to a second primary channel operating on a different bandwidth stream than a bandwidth stream of the first primary channel.
    Type: Application
    Filed: January 26, 2021
    Publication date: September 16, 2021
    Inventors: Sharan NARIBOLE, Srinivas Kandala, Wook Bong Lee, Ashok Ranganath
  • Patent number: 11102740
    Abstract: A method for providing a mode of wireless local area network (WLAN) operation includes: sending beacons from an access point (AP) in a discovery channel; sending an association request from a wireless station (STA) to the AP over the discovery channel; receiving an association response from the AP at the STA over the discovery channel in response to the association request; and after associating with the AP, switching between the discovery channel and a scheduled access channel to provide wireless communication between the AP and the STA based on a traffic condition and a bandwidth requirement.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: August 24, 2021
    Inventors: Ravi Gidvani, Ashok Ranganath, Wook Bong Lee, Sharan Naribole, Shailender Karmuchi
  • Publication number: 20210250860
    Abstract: A method for communicating over a WiFi channel.
    Type: Application
    Filed: April 28, 2021
    Publication date: August 12, 2021
    Inventors: Md Majharul Islam Rajib, Tianyu Wu, Wook Bong Lee, Ashok Ranganath
  • Publication number: 20210219306
    Abstract: Systems and methods for providing feedback regarding a wireless communication channel is disclosed. A responding processor is configured to estimate condition of the wireless communication channel and generate a data field. The data field includes a communication parameter based on the estimated condition of the wireless communication channel. The data field is attached to a control frame, and the control frame is transmitted with the attached data field. A transmitting processor is configured to receive the control frame, and determine whether the control frame includes the data field. The transmitting processor retrieves the data field from the control frame, and selects, based on the communication parameter in the data field, a transmit parameter for transmitting data over the wireless communication channel.
    Type: Application
    Filed: December 11, 2020
    Publication date: July 15, 2021
    Inventors: Ruchen Duan, Mostafa Sayed Roshdy Ibrahim, Wook Bong Lee, Srinivas Kandala, Ashok Ranganath
  • Publication number: 20210184796
    Abstract: A method for encoding or transmitting. In some embodiments, the method includes forming a set of one or more unpunctured codewords by coding a plurality of payload bits at a mother code rate, removing a plurality of punctured bits from the set of one or more unpunctured codewords to form a set of one or more punctured codewords, and transmitting the set of one or more punctured codewords. In some embodiments, the number of punctured bits exceeds a first threshold, or the number of punctured bits exceeds a second threshold.
    Type: Application
    Filed: November 13, 2020
    Publication date: June 17, 2021
    Inventors: Mostafa Sayed Roshdy Ibrahim, Wook Bong Lee, Ruchen Duan, Ashok Ranganath, Srinivas Kandala
  • Patent number: 11006363
    Abstract: A method for communicating over a WiFi channel. In some embodiments, the method includes determining, by a non-access point station, that a first skipping criterion is met; in response to determining that the first skipping criterion is met, skipping N1 target wait time service periods, N1 being a positive integer; after skipping N1 target wait time service periods, determining, by the non-access point station, whether a second skipping criterion is met; and in response to determining that the second skipping criterion is met, skipping N2 subsequent target wait time service periods, N2 being a positive integer greater than N1.
    Type: Grant
    Filed: May 2, 2019
    Date of Patent: May 11, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Md Majharul Islam Rajib, Tianyu Wu, Wook Bong Lee, Ashok Ranganath
  • Publication number: 20210083807
    Abstract: A method of implementing a hybrid automatic repeat request (HARQ) process. The method includes: transmitting, by a transmitter to a receiver, an initial transmission of the HARQ process; receiving, by the transmitter from the receiver, receiver decoding capability information; setting, by the transmitter, a retransmission duration based on the receiver decoding capability information; and implementing, by the transmitter, a retransmission of the HARQ process based on the retransmission duration.
    Type: Application
    Filed: July 21, 2020
    Publication date: March 18, 2021
    Inventors: Ruchen Duan, Mostafa Sayed Roshdy Ibrahim, Wook Bong Lee, Srinivas Kandala, Ashok Ranganath
  • Publication number: 20210084493
    Abstract: A method for associating and authenticating a station (STA) with a coordinated access point (AP) group may include generating a pairwise master key (PMK) between the STA and a coordinator of the coordinated AP group, and maintaining an association and authentication state between the STA and the coordinated AP group based on the PMK. The method may further include generating one or more temporal keys between the STA and the coordinator based on the PMK. The method may further include distributing the PMK from the coordinator to a first member AP and a second member AP of the coordinated AP group. The method may further include generating a first temporal key between the STA and the first member AP, and generating a second temporal key between the STA and the second member AP.
    Type: Application
    Filed: July 30, 2020
    Publication date: March 18, 2021
    Inventors: Sharan NARIBOLE, Srinivas KANDALA, Wook Bong LEE, Ashok RANGANATH
  • Publication number: 20210076419
    Abstract: Methods and devices are provided for multi-link transmission opportunity aggregation. A first enhanced ready to send (RTS) transmission is received on a first link. A second enhanced RTS transmission is received on a second link. The second enhanced RTS transmission is received concurrently with the first enhanced RTS transmission. At least one non-overlapping clear to send (CTS) transmission is transmitted over the first link and/or the second link. A first transmission is received over the first link. The first transmission includes a first packet extension (PE). A second transmission is received over the second link. The second transmission is received concurrently with the first transmission and includes a second PE. Feedback with respect to both the first transmission and the second transmission is transmitted over one of the first link and the second link after reception of a respective one of the first PE and the second PE.
    Type: Application
    Filed: July 29, 2020
    Publication date: March 11, 2021
    Inventors: Sharan NARIBOLE, Srinivas KANDALA, Wook Bong LEE, Ashok RANGANATH