Patents by Inventor Liwen Chu

Liwen Chu 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: 11870579
    Abstract: Systems and methods are provided for introducing time diversity in a transmitter. The systems and methods may include receiving, at the transmitter, a request from a receiver to retransmit data. The systems and methods may further include receiving an input of data corresponding to the data requested for retransmission at a first transmitter block. The systems and methods may further include operating on the signals using the first transmitter block in at least one of a first mode and a second mode, such that an output of signals from the first transmitter block is dependent on a time-varying function and corresponds to the data requested by the receiver for retransmission.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: January 9, 2024
    Assignee: Marvell Asia Pte, Ltd.
    Inventors: Yakun Sun, Hongyuan Zhang, Liwen Chu, Hui-Ling Lou
  • Patent number: 11871348
    Abstract: A wireless network interface of a first client station negotiates with an access point a first component channel of an operating channel via which the first client station is to receive wakeup frames from the access point. A wakeup radio of the first client station receives a wakeup packet from the access point. The wakeup packet spans the operating channel, which comprises at least four component channels, and one or more of the component channels within the operating channel are punctured so that the access point does not transmit the wakeup packet in the one or more component channels that are punctured. The wakeup packet includes a first wakeup frame for the first client station in the first component channel and one or more respective second wakeup frames for one or more second client stations in one or more respective second component channels.
    Type: Grant
    Filed: November 21, 2022
    Date of Patent: January 9, 2024
    Assignee: Marvell Asia Pte Ltd
    Inventors: Liwen Chu, Rui Cao, Hongyuan Zhang, Hui-Ling Lou
  • Publication number: 20240008062
    Abstract: Embodiments of a method and apparatus for wireless communications are disclosed. In an embodiment, a wireless device includes a wireless transceiver configured to communicate with a first device that is compatible with a first wireless communications protocol and a second device that is compatible with a second wireless communications protocol and a controller configured to announce different channel configurations for the first device that is compatible with the first wireless communications protocol and the second device that is compatible with the second wireless communications protocol when performing channel switch.
    Type: Application
    Filed: June 29, 2023
    Publication date: January 4, 2024
    Inventors: Liwen Chu, Hongyuan Zhang, Kiseon Ryu
  • Publication number: 20240008082
    Abstract: A method and an apparatus for operating a Basic Service Set (BSS) are disclosed. A method involves announcing, by a first wireless device to a second wireless device, a BSS operating channel, wherein the first wireless device has at least one of a first transmission power capability and a first bandwidth capability, the second wireless device has at least one of a second transmission power capability that is less than the first transmission power capability and a second bandwidth capability that is narrower than the first bandwidth capability, and wherein the BSS operating channel is at least one of a punctured operating channel and an unpunctured operating channel, associating, by the second wireless device, with the first wireless device via the announcement of the BSS operating channel from the first wireless device, and exchanging frames between the first wireless device and the second wireless device in the BSS operating channel.
    Type: Application
    Filed: June 29, 2023
    Publication date: January 4, 2024
    Inventors: Liwen Chu, Rui Cao, Hongyuan Zhang, Kiseon Ryu, Huizhao Wang
  • Patent number: 11849014
    Abstract: A first communication device is configured to process packets that conform to a first physical layer (PHY) protocol for wireless vehicular communications and packets that conform to a second PHY protocol for wireless vehicular communications. The first communication device determines that one or more second communication devices neighboring the first communication device are not capable of processing packets that conform to the second PHY protocol. The first communication device transmits a first packet to a third communication device that is configured to process packets that conform to the first PHY protocol and packets that conform to the second PHY protocol. The first packet indicates that the one or more second communication devices neighboring the first communication device are not capable of processing packets that conform to the second PHY protocol to inform the third communication device of the one or more second communication devices.
    Type: Grant
    Filed: January 9, 2023
    Date of Patent: December 19, 2023
    Assignee: Marvell Asia Pte Ltd
    Inventors: Hongyuan Zhang, Liwen Chu
  • Patent number: 11849453
    Abstract: A first communication device generates a first physical layer (PHY) data unit that includes information indicating a capability to use a channel bandwidth greater than a maximum channel bandwidth of the first communication device, and transmits the first PHY data unit to a second communication device during an association process with the second communication device. The first communication device generates a second PHY data unit that includes information indicating a capability to use at most the maximum channel bandwidth of the first communication device, and transmits the second PHY data unit to the second communication device when the first communication device is associated with the second communication device.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: December 19, 2023
    Assignee: Marvell Asia Pte Ltd
    Inventors: Liwen Chu, Lei Wang, Hongyuan Zhang, Yakun Sun, Jinjing Jiang, Hui-Ling Lou
  • Patent number: 11838788
    Abstract: Various embodiments relate to a method for a non simultaneous transmit and receive (NSTR) soft access point (AP) multi-link device (MLD) negotiating a traffic identifier (TID)-to-link mapping with a non-AP MLD, including: transmitting, by the NSTR soft AP MLD, a first frame that includes information on a first group of links that the NSTR soft AP MLD proposes to map to a first TID for the non-AP MLD; receiving, by the NSTR soft AP MLD, a second frame that includes an indication that the non-AP MLD agrees with the NSTR soft AP MLD's proposal on mapping of the first TID to the first group of links; and transmitting, by the NSTR soft AP MLD, traffic to the non-AP MLD on the first group of links based on the mapping.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: December 5, 2023
    Assignee: NXP USA, Inc.
    Inventors: Young Hoon Kwon, Liwen Chu, Hongyuan Zhang
  • Patent number: 11831423
    Abstract: Embodiments of a method and apparatus for communications are disclosed. In an embodiment, a method for wireless communications involves, in a punctured transmission, encoding, bits in a non-legacy preamble portion of a packet to include bandwidth information and resource allocation information, and signaling, in the packet, the bandwidth information and resource allocation information for at least one of a single-user-multiple-input multiple-output (SU-MIMO) technique, a multiple-user-multiple-input multiple-output (MU-MIMO) technique, and an orthogonal frequency-division multiple access (OFDMA) technique.
    Type: Grant
    Filed: December 31, 2020
    Date of Patent: November 28, 2023
    Assignee: NXP USA, Inc.
    Inventors: Rui Cao, Hongyuan Zhang, Liwen Chu
  • Patent number: 11831370
    Abstract: A first client station receives a multi-user physical layer (PHY) data unit from an access point. The multi-user PHY data unit includes i) a PHY preamble, and ii) a multi-user multiple input, multiple output (MU-MIMO) transmission. The PHY preamble includes a subfield that indicates respective numbers of spatial streams allocated to respective client stations among a plurality of client station that includes the first client station. The subfield has been encoded according to an encoding that supports allocating up to sixteen spatial streams to up to eight intended receivers, and the subfield consists of six or fewer bits. The first client station decodes the subfield to determine a number of spatial streams allocated to the first client station and processes the determined number of spatial streams in the MU-MIMO transmission.
    Type: Grant
    Filed: October 3, 2022
    Date of Patent: November 28, 2023
    Assignee: Marvell Asia Pte Ltd
    Inventors: Yan Zhang, Rui Cao, Bo Yu, Hongyuan Zhang, Liwen Chu
  • Patent number: 11832315
    Abstract: A communication device performs a first backoff operation to determine when the communication device can begin a first simultaneous transmission via multiple channel segments. The first backoff operation includes counting down a first backoff timer in connection with a first channel segment. In response to the first backoff timer expiring, the communication device performs the first simultaneous transmission via the multiple channel segments. After performing the first simultaneous transmission via the multiple channel segments, the communication device performs a second backoff operation to determine when the communication device can begin a second simultaneous transmission via the multiple channel segments. The second backoff operation includes counting down a second backoff timer in connection with a second channel segment. In response to the second backoff timer expiring, the communication device performs the second simultaneous transmission via the multiple channel segments.
    Type: Grant
    Filed: January 26, 2023
    Date of Patent: November 28, 2023
    Assignee: Marvell Asia Pte Ltd
    Inventors: Liwen Chu, Hongyuan Zhang, Hui-Ling Lou
  • Patent number: 11832167
    Abstract: Embodiments of a method and an apparatus for wireless operations are disclosed. In an embodiment, a method for wireless operations involves a first wireless device transmitting to a second wireless device, a management frame having a multi-link device (MLD) level Quality of Service Management Frame (QMF) Policy field that identifies an MLD level QMF Policy and a link level QMF Policy field that identifies a link level QMF Policy for a corresponding link, where the MLD level QMF Policy indicates an Access Category (AC) for each MLD level QMF management frame and each link level QMF Policy field indicates the AC for each link level QMF management frame, receiving, at the second wireless device, the management frame with the MLD level QMF Policy field and link level QMF Policy field for each corresponding link, and operating the second wireless device according to the AC indicated by the first wireless device.
    Type: Grant
    Filed: July 14, 2021
    Date of Patent: November 28, 2023
    Assignee: NXP USA, Inc.
    Inventors: Liwen Chu, Young Hoon Kwon, Hongyuan Zhang
  • Patent number: 11818799
    Abstract: A first communication device selects respective sets of medium access control (MAC) layer data units for transmission via respective channel segments of a communication channel, where the first channel segment and the second channel segment are non-overlapping frequency segments of the communication channel. The first communication device generates respective aggregate MAC layer data units to include the respective sets of MAC layer data units, generates respective physical (PHY) layer data units to include the respective aggregate MAC layer data units, and transmits the respective PHY layer data units in the respective channel segments to one or more second communication devices, where transmissions of the respective aggregate MAC layer data units in the respective channel segment overlap in time.
    Type: Grant
    Filed: June 1, 2020
    Date of Patent: November 14, 2023
    Assignee: Marvell Asia Pte Ltd
    Inventors: Liwen Chu, Hongyuan Zhang, Hui-Ling Lou, Po Wei Tan, Rui Cao, Ken Kinwah Ho
  • Publication number: 20230362996
    Abstract: Embodiments of a method and apparatus for wireless communications are disclosed. In an embodiment, a wireless relay device includes a wireless transceiver configured to receive, from a source wireless device, communications data, and a controller configured to decode and forward the received communications data to at least one destination wireless device.
    Type: Application
    Filed: May 8, 2023
    Publication date: November 9, 2023
    Inventors: Rui Cao, Liwen Chu, Hongyuan Zhang
  • Publication number: 20230353287
    Abstract: A wireless communication device generates physical layer (PHY) protocol service data units (PSDUs), and, in response to determining that the PHY data unit is to be transmitted according to a HARQ process, generates HARQ coding units of a common length, each of the HARQ coding units including a respective set of one or more PSDUs, and individually encodes the HARQ coding units. The wireless communication device also generates a HARQ signal field to the included in a PHY preamble of the PHY data unit. The HARQ signal field includes i) a common information subfield to indicate one or more parameters that commonly apply to each of at least some of the one or more HARQ coding units and ii) a respective HARQ coding unit information subfield for each of the HARQ coding units to indicate one or more parameters that apply to only the corresponding HARQ coding unit.
    Type: Application
    Filed: June 5, 2023
    Publication date: November 2, 2023
    Inventors: Yan ZHANG, Liwen CHU, Rui CAO, Hongyuan Zhang
  • Patent number: 11805470
    Abstract: A reduced neighbor report (RNR) element is generated. The generated RNR element includes multi-link device operation (MLO) information of least one neighboring wireless device to a reporting wireless device. In examples, the MLO information defines information of a respective multi-link device (MLD) which each at least one neighboring wireless device to the reporting wireless device is affiliated. A multilink (ML) element is also generated. The generated ML element includes basic service set (BSS) information of each of at least one wireless device affiliated to an MLD where the reporting wireless device is affiliated to the same MLD. The reporting wireless device transmits a frame which comprises the generated RNR element and the generated ML element, where the generated ML element does not include any other RNR element.
    Type: Grant
    Filed: May 16, 2021
    Date of Patent: October 31, 2023
    Assignee: NXP USA, Inc.
    Inventors: Young Hoon Kwon, Liwen Chu, Hongyuan Zhang
  • Publication number: 20230345552
    Abstract: An access point manages a first wireless local area network (WLAN) in a 6 GHz radio frequency (RF) band and ii) a second WLAN operating in another RF band. The access point generates a physical layer (PHY) data unit to include a management frame having i) first information indicating first network parameters of the first WLAN, and ii) second information indicating second network parameters of the second WLAN. The AP transmits the PHY data unit in the other RF band to provide, to any client stations that are operating in the other RF band and that are also capable of operating in the 6 GHz band: the first information indicating the first network parameters of the first WLAN operating in the 6 GHz RF band to assist the any client stations that are operating in the other RF band with joining the first WLAN operating in the 6 GHz RF band.
    Type: Application
    Filed: July 3, 2023
    Publication date: October 26, 2023
    Inventors: Liwen CHU, Hongyuan ZHANG, Hui-Ling LOU
  • Patent number: 11799523
    Abstract: In a method for simultaneously communicating with multiple communication devices in a wireless local area network a first communication device receives a plurality of uplink data units simultaneously transmitted by multiple second communication devices. The first communication device generates an acknowledgement data unit to acknowledge receipt of the multiple data units simultaneously transmitted by multiple second communication devices. The acknowledgement data unit includes (i) an indication that indicates that the acknowledgement data unit is intended for multiple second communication devices and (ii) respective acknowledgement information for the multiple second communication devices. The acknowledgement data unit is transmitted from the first communication device to the multiple second communication devices.
    Type: Grant
    Filed: May 18, 2022
    Date of Patent: October 24, 2023
    Assignee: NXP USA, INC.
    Inventors: Liwen Chu, Lei Wang, Jinjing Jiang, Hongyuan Zhang, Hui-Ling Lou
  • Patent number: 11800585
    Abstract: Embodiments of a method and an apparatus for wireless communications are disclosed. In an embodiment, a method for wireless communications involves transmitting, by a first multi-link device (MLD) to a second MLD, a management frame on at least one of two links associated with the first MLD and the second MLD in a multi-link operation, receiving, by the second MLD from the first MLD, the management frame on at least one of the two links, and operating the second MLD according to the management frame received on at least one of the two links.
    Type: Grant
    Filed: July 28, 2021
    Date of Patent: October 24, 2023
    Assignee: NXP USA, Inc.
    Inventors: Liwen Chu, Manish Kumar, Hongyuan Zhang, Huiling Lou
  • Patent number: 11800396
    Abstract: Embodiments of a method and an apparatus for wireless communications are disclosed. In an embodiment, a method for wireless communications involves connecting, by a first multi-link device (MLD) to a second MLD via at least two links, mapping, by the first MLD, a Traffic Identifier (TID) to at least one of the two links associated with the first MLD and the second MLD, transmitting, by the first MLD to the second MLD, frames that correspond to the TID on at least one of the two links according to the mapping by the first MLD, and receiving, by the first MLD from the second MLD, subsequent frames on at least one of the two links according to the mapping by the first MLD.
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: October 24, 2023
    Assignee: NXP USA, Inc.
    Inventors: Liwen Chu, Young Hoon Kwon, Hongyuan Zhang
  • Patent number: 11800445
    Abstract: Aspects of the present disclosure are directed to wireless communications based on a restricted TWT SP and buffer status. As may be implemented in accordance with one or more embodiments, frames are transmitted based on a restricted TWT SP and buffer status for communications between wireless circuits. Control data for the communications traffic may be processed in response to the restricted TWT SP, with a TXOP ending at the beginning of a restricted TWT SP of a another link, in response to the restricted TWT SP being negotiated in a different link. Such an approach may be carried out where one of the wireless circuits has no STR configuration. A protected duration time for the TWT SP may be set to a time that is less than a duration of the TWT SP in response to the TWT SP being protected by a quiet element duration period.
    Type: Grant
    Filed: October 1, 2021
    Date of Patent: October 24, 2023
    Assignee: NXP USA, Inc.
    Inventors: Liwen Chu, Young Hoon Kwon, Hongyuan Zhang, Huiling Lou