公开(公告)号：US09125235B2

公开(公告)日：2015-09-01

申请号：US13959585

申请日：2013-08-05

Applicant: Marvell World Trade Ltd.

Inventor： Yong Liu ,  Harish Ramamurthy ,  Ken Kinwah Ho ,  Raja Banerjea ,  Hongyuan Zhang

IPC: H04W4/00 ,  H04J3/00 ,  H04W84/12 ,  H04L1/06 ,  H04L1/16 ,  H04L5/00 ,  H04W72/04

CPC classification number: H04W28/06 ,  H04L1/06 ,  H04L1/1614 ,  H04L1/1685 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0032 ,  H04L5/0037 ,  H04L5/0064 ,  H04L5/0094 ,  H04L69/324 ,  H04W72/042 ,  H04W84/12

Abstract: Systems and techniques relating to wireless communications are described. A described technique includes obtaining data for transmission to a wireless communication device, the device being configured to process incoming transmissions based on an aggregate data unit format that specifies signaling for aggregating multiple medium access control (MAC) protocol data units (MPDUs); generating, based on the data and the aggregate data unit format, an aggregate MPDU (A-MPDU) that includes a single MPDU having a length greater than zero, the single MPDU residing in a subframe of the A-MPDU; setting a delimiter of the subframe to indicate that the single MPDU is the only MPDU within the A-MPDU that has a length greater than zero, and to cause the device to accept the A-MPDU without a corresponding block acknowledgement agreement; including, in a physical (PHY) frame, the A-MPDU; and transmitting the PHY frame to the device.

Abstract translation: 描述与无线通信相关的系统和技术。 所描述的技术包括获得用于传输到无线通信设备的数据，该设备被配置为基于指定用于聚合多个媒体接入控制（MAC）协议数据单元（MPDU）的信令的聚合数据单元格式来处理传入传输; 基于数据和聚合数据单元格式生成包括长度大于零的单个MPDU的聚合MPDU（A-MPDU），该单个MPDU驻留在A-MPDU的子帧中; 设置子帧的分隔符以指示单个MPDU是长度大于零的A-MPDU内的唯一MPDU，并且使得设备在没有相应的块确认协议的情况下接受A-MPDU; 包括在物理（PHY）帧中的A-MPDU; 并将PHY帧发送到设备。

公开(公告)号：US20140036895A1

公开(公告)日：2014-02-06

申请号：US13959585

申请日：2013-08-05

Applicant: Marvell World Trade Ltd.

Inventor： Yong Liu ,  Harish Ramamurthy ,  Ken Kinwah Ho ,  Raja Banerjea ,  Hongyuan Zhang

IPC: H04W84/12

CPC classification number: H04W28/06 ,  H04L1/06 ,  H04L1/1614 ,  H04L1/1685 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0032 ,  H04L5/0037 ,  H04L5/0064 ,  H04L5/0094 ,  H04L69/324 ,  H04W72/042 ,  H04W84/12

Abstract: Systems and techniques relating to wireless communications are described. A described technique includes obtaining data for a transmission to a wireless communication device. The wireless communication device can be configured to process incoming transmissions based on an aggregate data unit format that specifies signaling for aggregating multiple medium access control (MAC) data units. The technique includes, in a physical (PHY) frame, an aggregate data unit that is based on the data and the aggregate data unit format, the aggregate data unit including a single MAC data unit. The technique includes, in the PHY frame, an indication to signal that the MAC data unit in the aggregate data unit is singular and to cause the wireless communication device to accept the aggregate data unit without a corresponding block acknowledgement agreement.

Abstract translation: 描述与无线通信相关的系统和技术。 所描述的技术包括获得用于向无线通信设备发送的数据。 无线通信设备可以被配置为基于指定用于聚合多个媒体访问控制（MAC）数据单元的信令的聚合数据单元格式来处理传入传输。 该技术在物理（PHY）帧中包括基于数据和聚合数据单元格式的聚合数据单元，聚合数据单元包括单个MAC数据单元。 该技术在PHY帧中包括用于表明聚合数据单元中的MAC数据单元是奇异的并且使无线通信设备接受聚合数据单元而没有相应的块确认协议的指示。

公开(公告)号：US20130272179A1

公开(公告)日：2013-10-17

申请号：US13830672

申请日：2013-03-14

Applicant: Marvell World Trade Ltd.

Inventor： Yong Liu ,  Harish Ramamurthy ,  Ken Kinwah Ho ,  Raja Banerjea ,  Hongyuan Zhang

IPC: H04W84/12

CPC classification number: H04W28/06 ,  H04L1/06 ,  H04L1/1614 ,  H04L1/1685 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0032 ,  H04L5/0037 ,  H04L5/0064 ,  H04L5/0094 ,  H04L69/324 ,  H04W72/042 ,  H04W84/12

Abstract: Systems and techniques relating to wireless communications are described. A described technique includes generating a physical frame and causing a transmission of the physical frame to the wireless communication device. The physical frame includes (i) one or more medium access control data units that encapsulate data for a wireless communication device, (ii) a medium access control layer pad that includes one or more padding delimiters, and (iii) a physical layer pad, wherein a length of the medium access control layer pad and a length of the physical layer pad are based on the physical frame. The one or more padding delimiters can include an end-of-frame flag to inform the wireless communication device to stop receiving a remaining portion of the physical frame.

Abstract translation: 描述与无线通信相关的系统和技术。 所描述的技术包括产生物理帧并且将物理帧传送到无线通信设备。 物理帧包括（i）封装无线通信设备的数据的一个或多个介质访问控制数据单元，（ii）包括一个或多个填充定界符的介质访问控制层焊盘，以及（iii）物理层焊盘， 其中所述介质访问控制层焊盘的长度和所述物理层焊盘的长度基于所述物理帧。 一个或多个填充分隔符可以包括帧结束标志，以通知无线通信设备停止接收物理帧的剩余部分。

公开(公告)号：US10574418B2

公开(公告)日：2020-02-25

申请号：US15487766

申请日：2017-04-14

Applicant: Marvell World Trade Ltd.

Inventor： Liwen Chu ,  Yakun Sun ,  Leilei Song ,  Ken Kinwah Ho ,  Tianan Tim Ma ,  Li-Fu Jeng ,  Seong Yong Park ,  Foo Keong Tang

IPC: H04L5/00 ,  H04W72/04 ,  H04W72/08 ,  H04W88/08 ,  H04W84/12

Abstract: A first communication device receives a first data unit from a second communication device via one or more communication channels. The first data unit includes an indication of a first set of one or more sub-channels allocated to the first communication device, and the first data unit is configured to prompt the first communication device to transmit channel availability information as part of a subsequent orthogonal frequency division multiple access (OFDMA) transmission. The first communication device determines channel availability information for the one or more communication channels, and when the first communication device determines that at least one of the communication channels is idle, the first communication device transmits a second data unit to the second communication device in one or more sub-channels allocated to the first communication device as part of the OFDMA transmission, the second data unit including the channel availability information.

公开(公告)号：US20130242928A1

公开(公告)日：2013-09-19

申请号：US13891784

申请日：2013-05-10

Applicant: MARVELL WORLD TRADE LTD.

Inventor： Sandesh Goel ,  Timothy J. Donovan ,  Ken Kinwah Ho ,  Yungping Hsu ,  Kedar Shirali ,  Atul Salhotra ,  Tam Tran ,  Chia-Chun Chung

IPC: H04W72/04

CPC classification number: H04W72/04 ,  H04W74/0808

Abstract: A system including a physical layer module and a control module. The physical layer module is configured to generate a first clear channel assessment for a first sub-channel of a communication channel and generate a second clear channel assessment for a second sub-channel of the communication channel. The first clear channel assessment indicates whether the first sub-channel is free or busy. The second clear channel assessment indicates whether the second sub-channel is free or busy. The control module is configured to, in response to the second sub-channel being busy, extend a duration of the second clear channel assessment by a predetermined period of time, and transmit data via (i) only the first sub-channel or (ii) both the first sub-channel and the second sub-channel based on (a) the first clear channel assessment, (b) the second clear channel assessment, and (c) the extended duration of the first clear channel assessment.

Abstract translation: 一种包括物理层模块和控制模块的系统。 物理层模块被配置为对通信信道的第一子信道生成第一清除信道评估，并且生成用于通信信道的第二子信道的第二清除信道评估。 第一个清除频道评估表明第一个子频道是空闲还是忙碌。 第二个清除频道评估表明第二个子频道是空闲还是忙碌。 控制模块被配置为响应于第二子信道忙，将第二清除信道评估的持续时间延长预定时间段，并且经由（i）仅传送第一子信道或（ii） ）基于（a）第一清除信道评估，（b）第二清除信道评估和（c）第一清除信道评估的延长持续时间，第一子信道和第二子信道两者。

公开(公告)号：US10231148B2

公开(公告)日：2019-03-12

申请号：US15487717

申请日：2017-04-14

Applicant: Marvell World Trade Ltd.

Inventor： Liwen Chu ,  Leilei Song ,  Ken Kinwah Ho ,  Tianan Tim Ma ,  Li-Fu Jeng ,  Seong Yong Park ,  Foo Keong Tang

IPC: H04W28/06 ,  H04B7/06 ,  H04L12/721 ,  H04B7/0452 ,  H04L1/00 ,  H04W72/04 ,  H04W80/02 ,  H04W84/12

Abstract: A first communication device determines one or more parameters related to a format of a media access control layer (MAC) data unit for an uplink (UL) multi-user (MU) transmission. The format of the MAC data unit for the UL MU transmission is different than a format of a MAC data unit for an UL single user (SU) transmission. The first communication device generates one or more data units that include the one or more parameters. The first communication device transmits the one or more data units to a plurality of second communication devices to inform the plurality of second communication devices of the format of the MAC data unit for UL MU transmissions by the plurality of second communication devices to the first communication device.

公开(公告)号：US09521581B2

公开(公告)日：2016-12-13

申请号：US14989754

申请日：2016-01-06

Applicant: Marvell World Trade Ltd.

Inventor： Yong Liu ,  Harish Ramamurthy ,  Ken Kinwah Ho ,  Raja Banerjea ,  Hongyuan Zhang

IPC: H04W4/00 ,  H04L12/66 ,  H04J3/22 ,  H04W28/06 ,  H04L1/06 ,  H04L1/16 ,  H04L5/00 ,  H04W84/12 ,  H04L29/08 ,  H04W72/04

CPC classification number: H04W28/06 ,  H04L1/06 ,  H04L1/1614 ,  H04L1/1685 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0032 ,  H04L5/0037 ,  H04L5/0064 ,  H04L5/0094 ,  H04L69/324 ,  H04W72/042 ,  H04W84/12

Abstract: Systems and techniques relating to wireless communications are described. A described technique includes generating a physical frame, the physical frame including (i) spatially steered length fields and (ii) spatially steered frames that respectively include aggregated medium access control data units (A-MPDUs) that encapsulate data, the steered length fields respectively indicating lengths of the A-MPDUs in number of four-octet units. Generating the physical frame can include including after an A-MPDU of the A-MPDUs in a steered frame of the steered frames, (i) a medium access control layer pad and (ii) a physical layer pad. A length of the medium access control layer pad and a length of the physical layer pad can be based on the physical frame.

Abstract translation: 描述与无线通信相关的系统和技术。 所描述的技术包括生成物理帧，物理帧包括（i）空间转向长度字段和（ii）空间转向帧，其分别包括封装数据的聚合介质访问控制数据单元（A-MPDU），转向长度字段 指示A-MPDU的长度以四个八位字节为单位。 生成物理帧可以包括在转向帧的转向帧中的A-MPDU的A-MPDU之后包括，（i）介质访问控制层焊盘和（ii）物理层焊盘。 介质访问控制层焊盘的长度和物理层焊盘的长度可以基于物理帧。

公开(公告)号：US09014207B2

公开(公告)日：2015-04-21

申请号：US13891784

申请日：2013-05-10

Applicant: Marvell World Trade Ltd.

Inventor： Sandesh Goel ,  Timothy J. Donovan ,  Ken Kinwah Ho ,  Yungping Hsu ,  Kedar Shirali ,  Atul Salhotra ,  Tam Tran ,  Chia-Chun Chung

IPC: H04L12/413 ,  H04W4/00 ,  H04W72/04 ,  H04W74/08

CPC classification number: H04W72/04 ,  H04W74/0808

Abstract: A system including a physical layer module and a control module. The physical layer module is configured to generate a first clear channel assessment for a first sub-channel of a communication channel and generate a second clear channel assessment for a second sub-channel of the communication channel. The first clear channel assessment indicates whether the first sub-channel is free or busy. The second clear channel assessment indicates whether the second sub-channel is free or busy. The control module is configured to, in response to the second sub-channel being busy, extend a duration of the second clear channel assessment by a predetermined period of time, and transmit data via (i) only the first sub-channel or (ii) both the first sub-channel and the second sub-channel based on (a) the first clear channel assessment, (b) the second clear channel assessment, and (c) the extended duration of the first clear channel assessment.

Abstract translation: 一种包括物理层模块和控制模块的系统。 物理层模块被配置为对通信信道的第一子信道生成第一清除信道评估，并且生成用于通信信道的第二子信道的第二清除信道评估。 第一个清除频道评估表明第一个子频道是空闲还是忙碌。 第二个清除频道评估表明第二个子频道是空闲还是忙碌。 控制模块被配置为响应于第二子信道忙，将第二清除信道评估的持续时间延长预定时间段，并且经由（i）仅传送第一子信道或（ii） ）基于（a）第一清除信道评估，（b）第二清除信道评估和（c）第一清除信道评估的延长持续时间，第一子信道和第二子信道两者。

公开(公告)号：US20130173950A1

公开(公告)日：2013-07-04

申请号：US13734753

申请日：2013-01-04

Applicant: Marvell World Trade Ltd.

Inventor： Raja Banerjea ,  Donald Pannell ,  Ken Kinwah Ho ,  Ken Yeung ,  Mao Yu

IPC: G06F1/04

CPC classification number: G06F1/12 ,  G06F1/04 ,  H04J3/0664 ,  H04J3/0667

Abstract: According to one embodiment, an apparatus includes a first processing unit operating according to a first clock, a second processing unit operating according to a second clock running separately from the first clock, and a synchronization controller coupled to the first communication unit and the second communication unit. The synchronization controller is configured to (i) cause the first communication unit to generate a first indication of time at which the first processing unit transmits a signal to the second processing unit, according to the first clock, (ii) cause the second processing unit to generate a second indication of time at which the second processing unit receives the signal, according to the second clock, and (iii) determine an offset between the first clock and the second clock based on the first indication of time and the second indication of time.

Abstract translation: 根据一个实施例，一种装置包括根据第一时钟操作的第一处理单元，根据与第一时钟分开运行的第二时钟操作的第二处理单元，以及耦合到第一通信单元和第二通信的同步控制器 单元。 同步控制器被配置为（i）使第一通信单元根据第一时钟产生第一处理单元向第二处理单元发送信号的时间的第一指示，（ii）使第二处理单元 根据第二时钟产生第二处理单元接收信号的时间的第二指示，以及（iii）基于时间的第一指示和第二时间的第二指示来确定第一时钟和第二时钟之间的偏移量 时间。

公开(公告)号：US10555245B2

公开(公告)日：2020-02-04

申请号：US15955449

申请日：2018-04-17

Applicant: Marvell World Trade Ltd.

Inventor： Liwen Chu ,  Ken Kinwah Ho ,  Tianan Tim Ma ,  Hongyuan Zhang ,  Hui-Ling Lou

IPC: H04W8/22 ,  H04W72/12 ,  H04W80/02 ,  H04W88/10 ,  H04W48/12 ,  H04W72/04 ,  H04W76/11 ,  H04W16/02

Abstract: A first communication device generates and transmits to a second communication device: first and second information elements that respectively indicate capabilities regarding physical layer protocol data units (PPDUs) conforming to a first communication protocol and a second communication protocol. The first communication device generates and transmits a MAC data unit that includes a number corresponding to a maximum number spatial streams supported by the first communication device. The number in the MAC data unit, and one or more of i) the first information element, ii) the second information element, and iii) other information in the MAC data unit, indicate first and second maximum numbers of spatial streams supported by the first communication device with respect to PPDUs conforming to the first communication protocol, and PPDUs conforming to the second communication protocol, respectively.