公开(公告)号：US10349413B2

公开(公告)日：2019-07-09

申请号：US16016781

申请日：2018-06-25

Applicant: Marvell World Trade Ltd.

Inventor： Hongyuan Zhang ,  Yakun Sun ,  Hui-Ling Lou ,  Liwen Chu

IPC: H04B7/204 ,  H04W72/04 ,  H04L5/00 ,  H04L27/26 ,  H04W84/12

Abstract: A plurality of different OFDM tone blocks for a wireless local area network (WLAN) communication channel are assigned to a plurality of devices. An OFDMA data unit is generated, the OFDMA unit including a preamble portion and a data portion, the preamble portion having at least i) a first legacy portion that corresponds to at least a first OFDM tone block, ii) a second legacy portion that corresponds to a second OFDM tone block, iii) a first non-legacy portion that corresponds to the first OFDM tone block, iv) a second non-legacy portion that corresponds to the second OFDM tone block, and v) a third non-legacy portion that corresponds to a third OFDM tone block. The first OFDM tone block and the second OFDM tone block are separated in frequency by at least the third OFDM tone block.

公开(公告)号：US10313923B2

公开(公告)日：2019-06-04

申请号：US16039248

申请日：2018-07-18

Applicant: Marvell World Trade Ltd.

Inventor： Liwen Chu ,  Hongyuan Zhang ,  Hui-Ling Lou

IPC: H04L5/00 ,  H04W28/18 ,  H04L12/851 ,  H04L27/26 ,  H04B7/0452 ,  H04W28/04 ,  H04L1/18 ,  H04L1/16 ,  H04W84/12

Abstract: A first communication device receives one or more aggregate medium access control (MAC) data units from respective one or more second communication devices. Respective aggregate MAC data units include multiple MAC data units from respective ones of the one or more second communication devices. The first communication device generates one or more acknowledgement information fields, including a first acknowledgement information field corresponding to a particular second communication device includes i) a length indication that indicates a length of an acknowledgement field, and ii) the acknowledgment field of the indicated length. The acknowledgement field includes respective acknowledgement information for at least some of the multiple MAC data units received from the particular second communication device. The first communication device generates an acknowledgement data unit to include the one or more one or more acknowledgement information fields, and transmits the acknowledgment data unit to the one or more second communication devices.

公开(公告)号：US10257006B2

公开(公告)日：2019-04-09

申请号：US15793664

申请日：2017-10-25

Applicant: Marvell World Trade Ltd.

Inventor： Hongyuan Zhang ,  Yakun Sun ,  Mingguang Xu ,  Rui Cao ,  Hui-Ling Lou

IPC: H04L27/26 ,  H04L5/00 ,  H04W84/12

Abstract: A communication device determines that an extension field should be included in physical layer (PHY) data unit to provide a receiver with more processing time to process data included in the PHY data unit, wherein the extension field is not required to be processed by the receiver. The communication device generates i) a PHY preamble of the PHY data unit, and ii) a PHY data portion of the PHY data unit, the PHY data unit conforming to a first communication protocol. Each orthogonal frequency division multiplexing (OFDM) symbol in the PHY data portion is generated with a first tone spacing, which is a fraction 1/N of a second tone spacing defined by a second communication protocol, wherein N is a positive integer greater than one. The communication device also generates the extension field of the PHY data unit, which is appended to an end of the PHY data portion.

公开(公告)号：US10219274B2

公开(公告)日：2019-02-26

申请号：US15135428

申请日：2016-04-21

Applicant: Marvell World Trade Ltd.

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

IPC: H04W72/04 ,  H04W74/08 ,  H04W24/02 ,  H04W24/08 ,  H04W72/08 ,  H04W84/12

Abstract: Systems and techniques relating to wireless communications are described. A described technique includes sensing a group of channels for a channel contention operation that acquires two or more channels of the group of channels and detects a busy channel of the group of channels; determining a channel bonding indicator based on the channel contention operation; generating a preamble portion of a frame that includes the channel bonding indicator; generating a data portion of the frame, and transmitting the frame to one or more devices. Generating the preamble portion can include duplicating a legacy preamble on each of the acquired channels within the preamble portion. Generating the data portion can include setting first subcarriers that correspond to the acquired channels to data values, and setting second subcarriers that correspond to the busy channel to null values for at least a portion of the data portion of the frame.

公开(公告)号：US10098119B2

公开(公告)日：2018-10-09

申请号：US15337668

申请日：2016-10-28

Applicant: Marvell World Trade Ltd.

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

IPC: H04W4/00 ,  H04W72/04 ,  H04L5/00 ,  H04B7/0452 ,  H04L27/26 ,  H04W84/12

Abstract: A first communication device generates a multi-user (MU) physical layer (PHY) data unit having independent data for multiple second communication devices. The first communication device also generates respective control frames to prompt second communication devices to transmit an orthogonal frequency division multiple access (OFDMA) PHY data unit to acknowledge that the second communication devices received the MU PHY data unit. The MU PHY data unit and the respective control frames are transmitted to the multiple second communication devices. The first communication device receives the OFDMA PHY data unit from at least some of the second communication devices. The first communication device processes the OFDMA PHY data unit to determine whether the multiple second communication devices received the MU PHY data unit.

公开(公告)号：US20180262951A1

公开(公告)日：2018-09-13

申请号：US15916940

申请日：2018-03-09

Applicant: Marvell World Trade Ltd.

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

IPC: H04W28/06 ,  H04L12/805 ,  H04L1/00 ,  H04L12/801

Abstract: Embodiments described herein provide a method for fragmenting and reassembling data frames on a medium access control (MAC) layer in a wireless local area network. A datagram is received from an application running on a first network device, for transmission over a wireless communication link in the wireless local area network. A negotiation request is initiated with a second network device for determining whether both the first network device and the second network device have enhanced directional multi-gigabit capability (EMDG) for data segmentation and reassembly. When both devices have EMDG capability and the size of the datagram exceeds the maximum size defined by the wireless local area network transmission protocol, the datagram is segmented into a plurality of transmission data units on the MAC layer.

公开(公告)号：US10075318B2

公开(公告)日：2018-09-11

申请号：US15295685

申请日：2016-10-17

Applicant: Marvell World Trade Ltd.

Inventor： Hongyuan Zhang ,  Yakun Sun ,  Hui-Ling Lou ,  Liwen Chu

IPC: H04B7/06 ,  H04L27/26 ,  H04W4/08 ,  H04L5/00 ,  H04W72/08 ,  H04B17/318 ,  H04B17/336 ,  H04W72/04 ,  H04W84/12

CPC classification number: H04L27/2646 ,  H04B7/0632 ,  H04B17/318 ,  H04B17/336 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0094 ,  H04W4/08 ,  H04W72/0453 ,  H04W72/08 ,  H04W72/082 ,  H04W84/12

Abstract: A first communication device receives sounding feedback packets from a plurality of second communication devices, wherein each sounding feedback packet includes one or more channel quality indicators (CQIs) corresponding to one or more groups of orthogonal frequency division multiplexing (OFDM) subcarriers associated with the corresponding second communication device. The first communication device selects a group of second communications devices, based on the received one or more CQIs, for orthogonal frequency division multiple access (OFDMA) communication. The first communication device transmits at least one OFDMA data unit that includes respective data directed to two or more second communication devices of the group, where the respective data are transmitted via respective groups of subcarriers that were allocated to the two or more second communication devices of the group by the first communication device using the received CQIs.

公开(公告)号：US10009894B2

公开(公告)日：2018-06-26

申请号：US14955017

申请日：2015-11-30

Applicant: Marvell World Trade Ltd.

Inventor： Hongyuan Zhang ,  Yakun Sun ,  Hui-Ling Lou ,  Liwen Chu

IPC: H04B7/204 ,  H04W72/04 ,  H04L5/00 ,  H04L27/26 ,  H04W84/12

CPC classification number: H04W72/0453 ,  H04L5/0007 ,  H04L5/0041 ,  H04L5/0044 ,  H04L5/006 ,  H04L27/2602 ,  H04L27/2613 ,  H04L27/2627 ,  H04W84/12

Abstract: A plurality of different OFDM tone blocks for a wireless local area network (WLAN) communication channel are assigned to a plurality of devices. An OFDMA data unit is generated, the OFDMA unit including a preamble portion and a data portion, the preamble portion having at least i) a first legacy portion that corresponds to at least a first OFDM tone block, ii) a second legacy portion that corresponds to a second OFDM tone block, iii) a first non-legacy portion that corresponds to the first OFDM tone block, iv) a second non-legacy portion that corresponds to the second OFDM tone block, and v) a third non-legacy portion that corresponds to a third OFDM tone block. The first OFDM tone block and the second OFDM tone block are separated in frequency by at least the third OFDM tone block.

公开(公告)号：US20180109970A1

公开(公告)日：2018-04-19

申请号：US15845176

申请日：2017-12-18

Applicant: Marvell World Trade Ltd.

Inventor： Liwen Chu ,  Sagar A. Tamhane ,  Sarang Shrikrishna Wagholikar ,  Hongyuan Zhang ,  Hui-Ling Lou

IPC: H04W24/10 ,  H04W4/00 ,  H04L29/08 ,  G01S13/74 ,  H04W64/00 ,  H04W84/12

CPC classification number: H04W24/10 ,  G01S13/74 ,  H04L67/104 ,  H04W4/38 ,  H04W64/00 ,  H04W84/12

Abstract: A first wireless communication device includes a timing module to provide a timing synchronization function (TSF) time. A fine timing measurement module is to transmit a first request to perform a fine timing measurement to determine a distance between the first wireless communication device and a second wireless communication device. The first request includes a first value of the TSF time at which to start a burst period of the fine timing measurement, and the first value is determined in accordance with the TSF time provided by the timing module. The fine timing measurement module is further to receive a first response as transmitted from the second wireless communication device in response to the first request and transmit a second request to start the burst period at a TSF time indicated by the first value. The first response includes the first value of the TSF time.

公开(公告)号：US09853791B2

公开(公告)日：2017-12-26

申请号：US14968255

申请日：2015-12-14

Applicant: Marvell World Trade Ltd.

Inventor： Liwen Chu ,  Hui-Ling Lou ,  Hongyuan Zhang ,  Yakun Sun ,  Xiayu Zheng ,  Rui Cao

IPC: H04L5/00 ,  H04L27/26 ,  H04L25/02 ,  H04W74/08 ,  H04W72/04 ,  H04W74/00 ,  H04W84/12

CPC classification number: H04L5/0053 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0094 ,  H04L25/0224 ,  H04L27/2626 ,  H04W72/0446 ,  H04W74/002 ,  H04W74/0816 ,  H04W84/12

Abstract: A first communication device transmits a first control frame to multiple second communication devices via a wireless communication medium, wherein the first control frame i) indicates to other communication devices that the wireless communication medium is reserved for a first time period, and ii) indicates that the second communication devices are requested to simultaneously transmit respective second control frames to the first communication device via the wireless communication medium, wherein the second control frames are to include information indicating to other communication devices that the wireless communication medium is reserved for a second time period that is a subset of the first time period.