公开(公告)号：US10201009B1

公开(公告)日：2019-02-05

申请号：US15236230

申请日：2016-08-12

Applicant: Marvell International Ltd.

Inventor： Lei Wang ,  Liwen Chu ,  Jinjing Jiang ,  Yakun Sun ,  Hongyuan Zhang ,  Hui-Ling Lou

IPC: H04W74/04 ,  H04W74/00 ,  H04W72/00 ,  H04W72/04 ,  H04W76/10

Abstract: A channel access timer at a communication device is set to a duration for which a shared communication medium is expected to be busy in a basic service set (BSS) heard by the communication device. The channel access timer is counted down. Before the channel access timer reaches zero, respective indications of respective contention free period durations in multiple basic service sets (BSSs) heard by the communication device are recorded in a BSS record maintained by the communication device. Recording the respective indications includes recording, for each particular BSS of the multiple BSSs, (i) an identifier of the particular BSS and (ii) an offset value corresponding to an offset of an end of a contention free period in the particular BSS from an end of a contention free period in the BSS based on which the channel access timer is currently set at the communication device.

公开(公告)号：US10187497B1

公开(公告)日：2019-01-22

申请号：US15379027

申请日：2016-12-14

Applicant: Marvell International Ltd.

Inventor： Yakun Sun ,  Hongyuan Zhang ,  Lei Wang ,  Liwen Chu ,  Jinjing Jiang ,  Hui-Ling Lou

IPC: H04L29/06 ,  H04L29/08 ,  H04W84/12

Abstract: Embodiments described herein provide a method for providing a physical-layer control mechanism in accordance with a wireless local area network communication protocol allowing a high data rate. At a wireless receiver, a physical-layer data frame may be received compliant with the wireless local area network communication protocol. When the physical-layer data frame includes only one data unit, a length of an enhanced directional multi-gigabit header from a header associated with the physical-layer data frame may be obtained, and the enhanced directional multi-gigabit header from the physical-layer data frame may be enhanced based on the length. When the physical-layer data frame includes more than one data unit, a first length of a first data unit may be obtained from a first header associated with the first data unit, and the first data unit may be identified from the data frame based on the first length.

公开(公告)号：US09596060B1

公开(公告)日：2017-03-14

申请号：US14707898

申请日：2015-05-08

Applicant: MARVELL INTERNATIONAL LTD.

Inventor： Yakun Sun ,  Mingguang Xu ,  Hongyuan Zhang ,  Liwen Chu ,  Lei Wang ,  Hui-Ling Lou ,  Jinjing Jiang

IPC: H04W72/04 ,  H04W52/02 ,  H04L5/00 ,  H04L27/26 ,  H04W84/12

CPC classification number: H04L5/0007 ,  H04L5/0025 ,  H04L5/0037 ,  H04L5/0094 ,  H04L27/2602 ,  H04L27/2608 ,  H04L27/2613 ,  H04W84/12

Abstract: A method for transmitting a first field and one or more second fields is described. A number of devices in a group of multiple devices to which a first OFDMA data unit is to be transmitted is selected. A block allocation that indicates respective integer numbers of different tone blocks of a WLAN communication channel to be assigned to each device in the group of multiple devices is selected. A first field is encoded to indicate both the selected number of devices in the group and the selected block allocation. One or more second fields are encoded to indicate a respective device identifier for each device in the group of multiple devices. The first field and the one or more second fields are transmitted to each device in the group of multiple devices.

Abstract translation: 描述用于发送第一场和一个或多个第二场的方法。 选择要发送第一OFDMA数据单元的多个设备的组中的多个设备。 选择指示要分配给多个设备的组中的每个设备的WLAN通信信道的不同音调块的各个整数的块分配。 第一字段被编码以指示组中所选择的设备数量和所选择的块分配。 一个或多个第二字段被编码以指示多个设备组中的每个设备的相应设备标识符。 第一字段和一个或多个第二字段被发送到多个设备组中的每个设备。

公开(公告)号：US11778663B1

公开(公告)日：2023-10-03

申请号：US15710707

申请日：2017-09-20

Applicant: Marvell International Ltd.

Inventor： Jinjing Jiang ,  Liwen Chu ,  Lei Wang ,  Hongyuan Zhang ,  Hui-Ling Lou

IPC: H04W56/00 ,  H04W74/08 ,  H04L1/1829 ,  H04W72/23 ,  H04W72/1268 ,  H04W74/00 ,  H04L49/90 ,  H04W76/20

CPC classification number: H04W74/0816 ,  H04L1/1848 ,  H04W56/001 ,  H04W56/002 ,  H04W72/1268 ,  H04W72/23 ,  H04W74/004 ,  H04L49/90 ,  H04W76/20

Abstract: A method for communicating with an access point by a station. The station receives a first signal including an indication of a plurality of channels. The first signal is received from an access point. The station modifies a counter value in in response to receiving the first signal. The station further compares the counter value to a threshold value and selects a channel of the plurality of channels in response to determining the counter value corresponds to the threshold value. The station determines whether the selected channel is busy or idle. The station modifies the counter value in in response to determining that the selected channel is busy. The station transmits a second signal using the selected channel in response to determining that the selected channel is idle.

公开(公告)号：US10681625B1

公开(公告)日：2020-06-09

申请号：US16241881

申请日：2019-01-07

Applicant: Marvell International Ltd.

Inventor： Jinjing Jiang ,  Liwen Chu ,  Lei Wang ,  Yakun Sun ,  Hongyuan Zhang

IPC: H04L5/00 ,  H04W48/18 ,  H04B7/0452 ,  H04W72/04 ,  H04W48/10 ,  H04L1/18 ,  H04W88/08 ,  H04L29/08 ,  H04L12/911

Abstract: In aspects of acknowledgement options for downlink multi-user transmission, a wireless network system includes an access point that can communicate a downlink multi-user transmission soliciting acknowledgement from one or more station devices. The access point can receive an association request or an operation mode change request frame from one or more of the station devices, and determine an acknowledgement option for each of the station devices that communicate the request to the access point. The access point can then use a multi-user transmission mode or a single user transmission mode for each of the station devices based on the acknowledgement option determined for each of the respective station devices.

公开(公告)号：US10595361B2

公开(公告)日：2020-03-17

申请号：US16421136

申请日：2019-05-23

Applicant: Marvell International Ltd.

Inventor： Lei Wang ,  Liwen Chu ,  Jinjin Jiang ,  Hongyuan Zhang ,  Hui-Ling Lou

IPC: H04W84/02 ,  H04L1/16 ,  H04L1/18 ,  H04W28/02 ,  H04W72/12

Abstract: Aspects of the disclosure provide an apparatus for wireless communication. The apparatus includes a transceiver and a processing circuit. The transceiver is configured to transmit and receive wireless signals. The processing circuit is configured to detect an error of a previous scheduled transmission of data units from the apparatus to another apparatus. The other apparatus provides scheduled resources for transmission between the two apparatuses. Further, the processing circuit is configured to determine resources that are scheduled by the other apparatus for the apparatus to perform retransmission, and provide one or more of the data units in the previous scheduled transmission to the transceiver for retransmission using the scheduled resources.

公开(公告)号：US10554351B1

公开(公告)日：2020-02-04

申请号：US15948381

申请日：2018-04-09

Applicant: Marvell International Ltd.

Inventor： Liwen Chu ,  Lei Wang ,  Hongyuan Zhang ,  Jinjing Jiang ,  Hui-Ling Lou

IPC: H04W4/00 ,  H04L5/00 ,  H04W72/02 ,  H04W74/08

Abstract: Methods and systems are disclosed for performing contention based uplink (UL) orthogonal frequency division multiple access (OFDMA). The method may include receiving, from an access point using a channel, a first signal including an indication of a first time and a plurality of sub-channels of the channel. The method may include modifying a counter value in response to determining that the first time has been reached. The method may include selecting a sub-channel of the plurality of sub-channels in response to determining the counter value is equal to a threshold value. The method may include transmitting a second signal to the access point using the sub-channel. The methods and systems disclosed herein may be used by stations to associate with the access point.

公开(公告)号：US10477452B1

公开(公告)日：2019-11-12

申请号：US15446656

申请日：2017-03-01

Applicant: Marvell International LTD.

Inventor： Jinjing Jiang ,  Liwen Chu ,  Lei Wang ,  Yakun Sun ,  Hongyuan Zhang ,  Hui-Ling Lou

IPC: H04W4/00 ,  H04W40/24 ,  H04W72/04 ,  H04W84/10 ,  H04W84/12

Abstract: The present disclosure proposes systems and methods for performing spatial reuse using the following techniques at access points and stations. More specifically, the present disclosure relates to spatial reuse of medium with a spatial reuse opportunity announcement provided to STAs by an AP, opportunistic directional sensing performed by STAs, and a channel access method with a new backoff procedure performed by the STAs. An AP may provision a spatial reuse opportunity announcement in a beacon interval, and STAs may perform opportunistic directional sensing based on the announcement and perform channel access after performing opportunistic directional sensing.

公开(公告)号：US10314025B1

公开(公告)日：2019-06-04

申请号：US15422235

申请日：2017-02-01

Applicant: Marvell International Ltd.

Inventor： Liwen Chu ,  Hongyuan Zhang ,  Yakun Sun ,  Lei Wang ,  Jinjing Jiang ,  Hui-Ling Lou

IPC: H04W72/04 ,  H04L1/16

Abstract: Systems and methods are provided for performing multi-user transmissions across different segments of a transmission medium. A connection between a first access point and a plurality of stations is established; wherein a first station of the plurality of stations detects that a primary channel of communication between the first access point and the plurality of stations is being used for transmission by a second access point. The first access point allocates a transmission channel to the first station to communicate with the first access point. The first access point determines whether an acknowledgement from the first station is received. In response to determining that the acknowledgement has been received, the first access point allocates a resource unit to the first station using the transmission channel. In response to determining that the acknowledgement has not been received, the first access point reallocates the first station to a different transmission channel.

公开(公告)号：US10306603B1

公开(公告)日：2019-05-28

申请号：US15442398

申请日：2017-02-24

Applicant: Marvell International Ltd.

Inventor： Liwen Chu ,  Hongyuan Zhang ,  Lei Wang ,  Yakun Sun ,  Jinjing Jiang ,  Hui-Ling Lou

IPC: H04W28/02 ,  H04W72/04 ,  H04L12/833

Abstract: A method for transmitting a resource request for an uplink (UL) multi-user (MU) transmission is described. A High Throughput (HT) Control field that includes buffer information corresponding to media access control (MAC) protocol data units (MPDUs) that are queued for transmission by a first communication device is generated by the first communication device. The buffer information indicates a number of bytes for the MPDUs that are queued for transmission. A resource request MPDU that includes the HT Control field is generated by the first communication device. The resource request MPDU is transmitted by the first communication device to a second communication device via a wireless communication channel to request an allocation of radio resources for the UL MU transmission by the second communication device.