Patents by Inventor Wook Bong Lee

Wook Bong Lee 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: 11190382
    Abstract: Techniques discussed herein can facilitate RS (Reference Signal) sequence generation and mapping, and/or precoder assignment, for NR (New Radio). One example embodiment employable at a NR wireless communication device comprises processing circuitry configured to: generate one or more PN (Pseudo Noise) sequences based at least in part on an initial state of a PN generator; extract, for each PRB (Physical Resource Block) of one or more PRBs, an associated portion of an associated PN sequence of the one or more PN sequences, based at least in part on a reference subcarrier index, independent of a bandwidth part configuration and of a maximum supported number of PRBs; and generate, for each PRB of the one or more PRBs, an associated set of RS(s) for that PRB based at least in part on the extracted associated portion of the associated PN sequence for that PRB.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: November 30, 2021
    Assignee: Apple Inc.
    Inventors: Gang Xiong, Debdeep Chatterjee, Yushu Zhang, Alexei Davydov, Wook Bong Lee, Dae Won Lee, Sameer Pawar, Jeongho Jeon, Hong He
  • Publication number: 20210360599
    Abstract: Techniques for transmitting and receiving beamformed transmission(s) of a common search space of a DL (Downlink) control channel are discussed. One example embodiment that can be employed at a UE (User Equipment) comprises processing circuitry configured to: select a set of receive beamforming weights for a DL (Downlink) control channel; and decode one or more control channel sets from a common search space of the DL control channel, wherein each control channel set of the one or more control channel sets is mapped to an associated symbol of one or more symbols of a slot, wherein each control channel set of the one or more control channel sets has an associated transmit beamforming, and wherein each control channel set of the one or more control channel sets comprises a common set of control information.
    Type: Application
    Filed: July 29, 2021
    Publication date: November 18, 2021
    Inventors: Alexei Davydov, Wook Bong Lee, Hong He, Seung Hee Han, Honglei Miao
  • Publication number: 20210344431
    Abstract: Provided herein are method and apparatus for perform radio link monitoring (RLM) based on a Reference signal (RS). An embodiment provides a user Equipment (UE) comprising circuitry configured to: decode a Reference Signal (RS) received from an access node; and determine beam quality for one or more beam pair links (BPLs) of the RS between the UE and the access node based on the decoded RS, wherein each of the BPLs comprises a transmit (Tx) beam of the access node and a receive (Rx) beam of the UE. Also provided is a procedure of RLM. At least some embodiments allow for beam recovery request for UE beam refinement, and allow for determining whether radio link failure (RLF) occurs.
    Type: Application
    Filed: April 19, 2021
    Publication date: November 4, 2021
    Inventors: Yushu Zhang, Wook Bong Lee, Dae Won Lee, Seunghee Han, Alexei Davydov, Guotong Wang, Gregory Morozov
  • 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: 11159217
    Abstract: Systems and methods of beam reporting for multiple DL processes are described. A UE receives a beam management processes configuration that provides information about beam management reference signals for beam management procedures. The UE transmits a UE capability report that indicates beam management capabilities of the UE and, later, an indication of whether the UE intends to engage in beam refinement. The UE measures the beam management reference signals and receives a beam reporting message that indicates at least one of the beam management procedures to report. In response, the UE transmits the beam report. The beam report contains beam management reference signal measurements of the beam management procedures indicated by the beam reporting message.
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: October 26, 2021
    Assignee: Apple Inc.
    Inventors: Yushu Zhang, Huaning Niu, Wook Bong Lee, Alexei Davydov, Guotong Wang
  • Patent number: 11153863
    Abstract: Embodiments of the present disclosure describe methods and apparatuses for physical downlink control channel (PD-CCH) demodulation reference signal (DMRS) transmission and reception.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: October 19, 2021
    Assignee: Apple Inc.
    Inventors: Honglei Miao, Wook Bong Lee, Yushu Zhang, Michael Faerber, Seunghee Han
  • Patent number: 11140749
    Abstract: Embodiments of a User Equipment (UE), a generation Node-B (gNB) and methods for communication are generally described herein. The UE may the UE 102 may receive from a gNB, control signaling that indicates: a first pre-coding matrix indicator (PMI) that indicates a first pre-coder for a first sub-band; and a second PMI that indicates a second pre-coder for a second sub-band. The first and second pre-coders may be included in predetermined candidate pre-coders. The UE may encode a physical uplink shared channel (PUSCH) block for transmission. The UE may scale the PUSCH block in the first sub-band by the first pre-coder. The UE may scale the PUSCH block in the second sub-band by the second pre-coder.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: October 5, 2021
    Assignee: Apple Inc.
    Inventors: Yushu Zhang, Alexei Davydov, Wook Bong Lee, Dae Won Lee, Seunghee Han
  • Publication number: 20210288708
    Abstract: Herein described are apparatuses, systems, and methods for measurement and reporting of channel state information within wireless network systems. In embodiments, an apparatus for a user equipment (UE) may include memory to store a rank indicator (RI), a precoding matrix index (PMI), and a channel quality indicator (CQI) of channel state information (CSI) for the UE. The apparatus may further include circuitry to concatenate the RI, the PMI, and the CQI to produce a concatenated CSI element, generate a CSI report that includes the concatenated CSI element, and cause the CSI report to be transmitted to a base station within a single slot. Other embodiments may be described and/or claimed.
    Type: Application
    Filed: May 28, 2021
    Publication date: September 16, 2021
    Applicant: Apple Inc.
    Inventors: Alexei DAVYDOV, Sameer PAWAR, Wook Bong LEE, Yushu ZHANG, Victor SERGEEV, Joonyoung CHO, Dmitry DIKAREV
  • 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
  • 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
  • Patent number: 11121743
    Abstract: An apparatus is configured to be employed within a base station. The apparatus comprises baseband circuitry which includes a radio frequency (RF) interface and one or more processors. The one or more processors are configured to arrange phase tracking reference signal (PT-RS) resource elements (REs) and data REs as an arrangement for a transmission based on one or more diversity factors. The one or more diversity factors include a time domain and a frequency domain. The one or more processors are also configured to provide the transmission having the PT-RS REs to the RF interface for transmission to a user equipment (UE) device.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: September 14, 2021
    Assignee: Apple Inc.
    Inventors: Yushu Zhang, Alexei Davydov, Wook Bong Lee, Gang Xiong, Xinyue Zheng
  • Publication number: 20210281303
    Abstract: A beam transmitting device improves performance of a communication channel. The beam transmitting device includes a controller configured to transmit a null data packet (NDP) and receive channel information; and a smoothing circuit configured to smooth a plurality of beamforming vectors in the channel information. The smoothing circuit includes a weight calculator configured to calculate a common phase factor using two adjacent beamforming vectors among the plurality of beamforming vectors, and a moving average filter configured to perform the smoothing using the common phase factor.
    Type: Application
    Filed: March 1, 2021
    Publication date: September 9, 2021
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Eun Sung JEON, Wook Bong LEE, Min Ki AHN, Sung Soo KIM, Joon Suk KIM
  • Publication number: 20210282146
    Abstract: An apparatus and a method for allocating a multiple resource unit (RU) for a user in a wireless local area network (WLAN) system are provided. A transmission device of the WLAN system includes a transceiver that generates a physical layer convergence protocol (PLCP) protocol data unit (PPDU) including a preamble and a payload and transmitting the generated PPDU to at least one receiving device and a processor controlling the transceiver. The preamble includes a plurality of training fields and a plurality of signaling fields. Resource unit (RU) allocation information on the at least one receiving device is included in one of the plurality of signaling fields. The RU allocation information includes a first subfield indicating an arrangement of RUs in a frequency domain corresponding to the PPDU and a second subfield indicating a portion of the RUs to be combined to form a multiple RU.
    Type: Application
    Filed: March 1, 2021
    Publication date: September 9, 2021
    Inventors: MYEONGJIN KIM, Wook Bong Lee
  • 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
  • Patent number: 11101953
    Abstract: An apparatus is configured to be employed within a base station. The apparatus comprises baseband circuitry which includes a radio frequency (RF) interface and one or more processors. The one or more processors are configured to generate control information, the control information including a configured number of ports; receive a plurality of sounding reference signals (SRS) via the RF interface from a user equipment (UE) device, wherein each of the plurality of SRS is associated with one of the one or more precoders; and generate a ranking of a the one or more precoders based on the received plurality of SRS, wherein the plurality of SRS are associated with the one or more precoders.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: August 24, 2021
    Assignee: Apple Inc.
    Inventors: Wook Bong Lee, Alexei Davydov, Yushu Zhang, Victor Sergeev
  • 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
  • Patent number: 11082966
    Abstract: Techniques for transmitting and receiving beamformed transmission(s) of a common search space of a DL (Downlink) control channel are discussed. One example embodiment that can be employed at a UE (User Equipment) comprises processing circuitry configured to: select a set of receive beamforming weights for a DL (Downlink) control channel; and decode one or more control channel sets from a common search space of the DL control channel, wherein each control channel set of the one or more control channel sets is mapped to an associated symbol of one or more symbols of a slot, wherein each control channel set of the one or more control channel sets has an associated transmit beamforming, and wherein each control channel set of the one or more control channel sets comprises a common set of control information.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: August 3, 2021
    Assignee: Apple Inc.
    Inventors: Alexei Davydov, Wook Bong Lee, Hong He, Seung Hee Han, Honglei Miao
  • Patent number: 11070270
    Abstract: An apparatus for a beamformee and a method are provided. The apparatus includes a first beamforming matrix device configured to generate a first beamforming matrix VWB from a channel H; an equivalent channel device configured to generate an equivalent channel {tilde over (H)}k based on the channel H and the first beamforming matrix VWB, where k is a number that indicates a subcarrier index; and a second beamforming matrix device configured to obtain a second beamforming matrix VSC from the equivalent channel {tilde over (H)}k.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: July 20, 2021
    Inventors: Wook Bong Lee, Minyoung Park, Tianyu Wu
  • 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
  • Patent number: 11063652
    Abstract: Techniques discussed herein can facilitate maintenance and/or recovery of BPL(s) (Beam Pair Link(s)). Various embodiments can employ aspects discussed herein can one or more of enable interference randomization for beam/link recovery signal(s) or reduce the overhead of UL (Uplink) beam management RS (Reference Signal(s)). Various embodiments can comprise UE(s) (User Equipment(s)) that can receive configuration signaling configuring the UE(s) to one or more of apply interference randomization to a beam/link recovery signal and/or generate a SR (Scheduling Request) channel for beam maintenance having reduced overhead and can transmit the beam/link recovery signal and/or SR channel. Additional embodiments can comprise gNB(s) (next Generation NodeB(s)) that can configure UE(s) for beam maintenance and/or recovery techniques discussed herein.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: July 13, 2021
    Assignee: Apple Inc.
    Inventors: Gang Xiong, Yushu Zhang, Alexei Davydov, Wook Bong Lee, Dae Won Lee, Guotong Wang