Patents by Inventor Ruchen DUAN

Ruchen DUAN 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: 20240064714
    Abstract: Methods and apparatuses are provided in which an access point (AP) transmits a trigger frame to one or more user equipments (UEs). The trigger frame includes an indication of allocated resource units (RUs) for random access (RA). A UE allocates respective data to a sets of RUs for RA that are consecutive in a single frequency segment over a time domain of a physical protocol data unit (PPDU), based on the trigger frame. The UE transmits the PPDU to the AP.
    Type: Application
    Filed: August 2, 2023
    Publication date: February 22, 2024
    Inventors: Srinivas KANDALA, Wook Bong LEE, Ruchen DUAN, Vamadevan NAMBOODIRI, Mark RISON
  • Patent number: 11901933
    Abstract: A method and system for providing sub-band whitening are herein provided. According to one embodiment, a method includes deriving an estimated noise plus interference variance (NIVar) based on at least one legacy-long training field (LLTF) symbol from an LLTF signal; and updating an interference whitening (IW) factor by using a sub-band NIVar.
    Type: Grant
    Filed: May 2, 2022
    Date of Patent: February 13, 2024
    Inventors: Mostafa Sayed Roshdy Ibrahim, Ruchen Duan, Wook Bong Lee, Minki Ahn, Hyun Bae Jeon
  • Publication number: 20240008057
    Abstract: A system and a method are disclosed for controlling a coordinating network entity in a virtual network including a plurality of access points (APs) and at least one wireless station (STA), including receiving one or more parameters from at least one AP included in the plurality of APs; identifying a first multi-AP coordination scheme based on the one or more parameters; and assigning the first multi-AP coordination scheme to a first dynamic group of network entities included in the virtual network, wherein the first dynamic group of network entities performs wireless communication based on the first multi-AP coordination scheme.
    Type: Application
    Filed: June 8, 2023
    Publication date: January 4, 2024
    Inventors: Vamadevan NAMBOODIRI, Wook Bong LEE, Srinivas KANDALA, Ruchen DUAN
  • Patent number: 11792835
    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: Grant
    Filed: December 11, 2020
    Date of Patent: October 17, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ruchen Duan, Mostafa Sayed Roshdy Ibrahim, Wook Bong Lee, Srinivas Kandala, Ashok Ranganath
  • Patent number: 11770145
    Abstract: An electronic device configured to apply, to a first power amplifier (PA) input, one or more updated memory digital pre-distorter (mDPD) coefficient values is provided. The electronic device includes a processor; and a memory including a non-transitory computer readable storage medium storing instructions that, when executed, cause the processor to preload, from values stored in the memory of the electronic device, one or more mDPD coefficient values; transmit a training signal sequence while using the preloaded one or more mDPD coefficient values; receive the training signal sequence; update the one or more mDPD coefficient values based on the transmitted training signal sequence, the received training signal sequence, and the preloaded one or more mDPD coefficient values; and apply the updated one or more mDPD coefficient values to distort the first PA input.
    Type: Grant
    Filed: August 10, 2022
    Date of Patent: September 26, 2023
    Inventors: Vamadevan Namboodiri, Wook Bong Lee, Donghan Kim, Ruchen Duan, Mostafa Sayed Roshdy Ibrahim
  • Publication number: 20230155730
    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: January 18, 2023
    Publication date: May 18, 2023
    Inventors: Mostafa Sayed Roshdy Ibrahim, Wook Bong Lee, Ruchen Duan, Ashok Ranganath, Srinivas Kandala
  • Publication number: 20230107677
    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: December 8, 2022
    Publication date: April 6, 2023
    Inventors: Ruchen Duan, Mostafa Sayed Roshdy Ibrahim, Wook Bong Lee, Srinivas Kandala, Ashok Ranganath
  • Publication number: 20230067808
    Abstract: A system and method for feedback for link adaptation. In some embodiments, the method includes: receiving, by a receiver, a first transmission from a transmitter; calculating a first estimated packet error rate, for a first modulation and coding scheme and a first number of spatial streams, the first modulation and coding scheme having a first modulation and coding scheme index; determining that the first estimated packet error rate is less than a threshold; and in response to determining that the first estimated packet error rate is less than the threshold, calculating a second estimated packet error rate, for a second modulation and coding scheme.
    Type: Application
    Filed: August 8, 2022
    Publication date: March 2, 2023
    Inventors: Ruchen Duan, Wook Bong Lee, Vamadevan Namboodiri, Srinivas Kandala, Ashok Ranganath
  • Publication number: 20230062458
    Abstract: An electronic device configured to apply, to a first power amplifier (PA) input, one or more updated memory digital pre-distorter (mDPD) coefficient values is provided. The electronic device includes a processor; and a memory including a non-transitory computer readable storage medium storing instructions that, when executed, cause the processor to preload, from values stored in the memory of the electronic device, one or more mDPD coefficient values; transmit a training signal sequence while using the preloaded one or more mDPD coefficient values; receive the training signal sequence; update the one or more mDPD coefficient values based on the transmitted training signal sequence, the received training signal sequence, and the preloaded one or more mDPD coefficient values; and apply the updated one or more mDPD coefficient values to distort the first PA input.
    Type: Application
    Filed: August 10, 2022
    Publication date: March 2, 2023
    Inventors: Vamadevan NAMBOODIRI, Wook Bong LEE, Donghan KIM, Ruchen DUAN, Mostafa Sayed Roshdy IBRAHIM
  • Patent number: 11588578
    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: Grant
    Filed: November 13, 2020
    Date of Patent: February 21, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Mostafa Sayed Roshdy Ibrahim, Wook Bong Lee, Ruchen Duan, Ashok Ranganath, Srinivas Kandala
  • Publication number: 20230043779
    Abstract: A method according to some embodiments include reporting, by a beamformee, an encryption capability indicator to a beamformer, wherein the encryption capability indicator is indicative of a capability of the beamformee to encrypt a feedback frame. The method may also include receiving, by the beamformee from the beamformer, an announcement frame in response to the beamformer receiving an indication that the beamformee is capable of encrypting the feedback frame, and then sending, by the beamformee, an encrypted feedback frame.
    Type: Application
    Filed: January 21, 2022
    Publication date: February 9, 2023
    Inventors: Pavankumar Veerashetty, Wook Bong Lee, Ashok Ranganath, Ravi Gidvani, Shailender Karmuchi, Srinivas Kandala, Ruchen Duan, Mostafa Ibrahim
  • Publication number: 20220361190
    Abstract: A system and method for managing latency in a wireless network. In some embodiments, the method includes: receiving, by a non-Access Point Station (non-AP STA), a first inserted packet; and sending, by the non-AP STA, an Acknowledgement (ACK) for the first inserted packet, the first inserted packet beginning after the beginning of a first originally scheduled Aggregated Physical layer Protocol Data Unit (A-PPDU) and being substituted for a portion of the data of the first originally scheduled A-PPDU.
    Type: Application
    Filed: April 15, 2022
    Publication date: November 10, 2022
    Inventors: Wook Bong Lee, Ruchen Duan, Srinivas Kandala, Ashok Ranganath, Myeongjin Kim
  • Publication number: 20220255582
    Abstract: A method and system for providing sub-band whitening are herein provided. According to one embodiment, a method includes deriving an estimated noise plus interference variance (NIVar) based on at least one legacy-long training field (LLTF) symbol from an LLTF signal; and updating an interference whitening (IW) factor by using a sub-band NIVar.
    Type: Application
    Filed: May 2, 2022
    Publication date: August 11, 2022
    Inventors: Mostafa Sayed Roshdy IBRAHIM, Ruchen Duan, Wook Bong Lee, Minki Ahn, Hyun Bae Jeon
  • Publication number: 20220248258
    Abstract: A system and method for selecting values for Validate and Disregard bits. In some embodiments, the method includes: receiving, by a first wireless station, from a second wireless station, an information element reporting capabilities of the second wireless station; and determining, by the first wireless station, based on the information element, whether to transmit, to the second wireless station, a default value for each of a plurality of Validate bits and for each of a plurality of Disregard bits.
    Type: Application
    Filed: January 19, 2022
    Publication date: August 4, 2022
    Inventors: Ruchen DUAN, Wook Bong LEE, Srinivas KANDALA, Ravi GIDVANI, Jonghun HAN, Chulho CHUNG, Ashok RANGANATH
  • Patent number: 11336388
    Abstract: A method for operating a link method includes estimating a plurality of throughputs, each throughput corresponding to one of a plurality of modulation and coding schemes, each one of the plurality of modulation and coding schemes corresponding to one of a plurality of combinations of spatial stream numbers and bandwidths, selecting a maximum throughput from the plurality of throughputs, and transmitting data according to a modulation and coding scheme, a spatial stream number, and a bandwidth corresponding to the maximum throughput.
    Type: Grant
    Filed: August 12, 2020
    Date of Patent: May 17, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Wook Bong Lee, Moumita Ray, Ruchen Duan
  • Patent number: 11323148
    Abstract: A method and system for providing sub-band whitening are herein provided. According to one embodiment, a method estimating an interference whitening (IW) factor based on a legacy-long training field (LLTF) signal, updating the estimated IW factor during transmission of a data symbol, and scaling the data symbol based on the updated IW factor and the estimated IW factor.
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: May 3, 2022
    Inventors: Mostafa Sayed Roshdy Ibrahim, Ruchen Duan, Wook Bong Lee, Minki Ahn, Hyun Bae Jeon
  • 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
  • Publication number: 20210143863
    Abstract: A method and system for providing sub-band whitening are herein provided. According to one embodiment, a method estimating an interference whitening (IW) factor based on a legacy-long training field (LLTF) signal, updating the estimated IW factor during transmission of a data symbol, and scaling the data symbol based on the updated IW factor and the estimated IW factor.
    Type: Application
    Filed: January 20, 2021
    Publication date: May 13, 2021
    Inventors: Mostafa Sayed Roshdy IBRAHIM, Ruchen DUAN, Wook Bong LEE, Minki AHN, Hyun Bae JEON
  • 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