公开(公告)号：US09408090B1

公开(公告)日：2016-08-02

申请号：US14195624

申请日：2014-03-03

Applicant: MARVELL INTERNATIONAL LTD.

Inventor： Hongyuan Zhang ,  Sudhir Srinivasa ,  Yong Liu

IPC: H04J1/16 ,  H04W24/02

CPC classification number: H04W24/02 ,  H04Q11/0478

Abstract: In a wireless network in which communication devices are configured to use a first guard interval between symbols or a second guard interval between symbols, wherein the first guard interval has a length shorter than a length of the second guard interval, a field in a data unit received from a communication device is analyzed to determine a set of one or more modulation and coding schemes (MCSs) supported by the communication device and to determine whether one or more MCSs in the set of one or more MCSs is supported by the communication device when using the first guard interval. One MCS in the set of one or more MCSs and the first guard interval is utilized a) when communicating with the communication device, and b) when it is determined that the one MCS is supported by the communication device when using the first guard interval.

Abstract translation: 在其中通信设备被配置为使用符号之间的第一保护间隔或符号之间的第二保护间隔的无线网络中，其中所述第一保护间隔具有比所述第二保护间隔的长度短的长度，数据单元中的字段 分析从通信设备接收的，以确定由通信设备支持的一个或多个调制和编码方案（MCS）的集合，并且确定一个或多个MCS的集合中的一个或多个MCS是否被通信设备支持时 使用第一保护间隔。 一个MCS中的一个MCS和第一保护间隔被利用a）当与通信设备进行通信时，以及b）当使用第一保护间隔时确定通信设备支持一个MCS。

公开(公告)号：US09226294B1

公开(公告)日：2015-12-29

申请号：US14537388

申请日：2014-11-10

Applicant: Marvell International Ltd.

Inventor： Yong Liu ,  Hongyuan Zhang

IPC: H04Q9/04 ,  H04Q9/12 ,  H04Q11/02 ,  H04B7/208 ,  H04W72/04

CPC classification number: H04W74/0816 ,  H04W72/0406 ,  H04W72/0446 ,  H04W72/046 ,  H04W74/006 ,  H04W74/04 ,  H04W84/12

Abstract: A first communication device determines that each second communication device in a plurality of second communication devices has respective data to be transmitted to the first communication device. The first communication device transmits a request to the plurality of second communication devices to transmit data to the first communication device simultaneously during a transmit opportunity period of the first communication device. The first communication device receives data transmitted simultaneously by the plurality of second communication devices during the transmit opportunity period of the first communication device.

Abstract translation: 第一通信设备确定多个第二通信设备中的每个第二通信设备具有要发送到第一通信设备的相应数据。 第一通信设备在第一通信设备的发送机会期间内向多个第二通信设备发送请求以同时向第一通信设备发送数据。 第一通信设备在第一通信设备的发送机会期间期间接收由多个第二通信设备同时发送的数据。

公开(公告)号：US10368391B1

公开(公告)日：2019-07-30

申请号：US16120393

申请日：2018-09-03

Applicant: Marvell International Ltd.

Inventor： Hongyuan Zhang ,  Rohit U. Nabar ,  Sudhir Srinivasa ,  Raja Banerjea ,  Yong Liu

IPC: H04W84/12 ,  H04J11/00 ,  H04L27/26

Abstract: A communication device generates a physical layer (PHY) data unit that includes a PHY preamble and one or more PHY midambles. The communication generates the PHY preamble of the PHY data unit to include i) a signal field having a subfield that indicates that the PHY data unit includes one or more PHY midambles, ii) a short training field (STF) for automatic gain control (AGC) training and synchronization at a receiver, and iii) one or more long training fields (LTFs) for determining a channel estimate at the receiver. The communication generates a data payload of the PHY data unit having i) a set of orthogonal frequency division multiplexing (OFDM) symbols, and ii) one or more PHY midambles. Each of the one or more PHY midambles includes one or more LTFs for determining an updated channel estimate. The communication device transmits the PHY data unit via a wireless communication channel.

公开(公告)号：US09351333B1

公开(公告)日：2016-05-24

申请号：US13689244

申请日：2012-11-29

Applicant: MARVELL INTERNATIONAL LTD.

Inventor： Hongyuan Zhang ,  Rohit U. Nabar ,  Sudhir Srinivasa ,  Raja Banerjea ,  Yong Liu

IPC: H04W84/12 ,  H04L12/28

CPC classification number: H04W84/12 ,  H04L5/0007 ,  H04L5/0053 ,  H04L27/2602 ,  H04L27/261 ,  H04W28/065

Abstract: A preamble, a plurality of data segments of a data payload of a single data unit, and one or more midambles, each included between respective data segments, are generated. Data to be included in the data segments is processed, including at least one of: encoding all data payload bits of all segments as a whole, encoding data payload bits on a per segment basis, scrambling all data payload bits of all segments as a whole, scrambling data payload bits on a per segment basis, adding padding bits to only a last data segment, or adding padding bits to each data segment separately. The single data unit, including the preamble, the plurality of data segments and the one or more midambles, is caused to be transmitted. A network interface of a communication device may perform the generation and the data processing, and may cause the transmission of the single data unit.

Abstract translation: 产生前导码，单个数据单元的数据有效载荷的多个数据段，以及各个数据段之间的一个或多个中间码块。 包括在数据段中的数据被处理，包括以下至少之一：整体地编码所有段的所有数据有效载荷比特，对每个段进行编码数据有效负载比特，将整个段的所有数据有效载荷位加扰 ，在每个片段的基础上加扰数据有效载荷比特，将填充比特添加到最后一个数据段，或者分别向每个数据段添加填充比特。 导致包括前导码，多个数据段和一个或多个中间码的单个数据单元被发送。 通信设备的网络接口可以执行生成和数据处理，并且可以导致单个数据单元的传输。

公开(公告)号：US08964721B1

公开(公告)日：2015-02-24

申请号：US14143513

申请日：2013-12-30

Applicant: Marvell International Ltd.

Inventor： Yong Liu ,  Raja Banerjea

IPC: H04B7/212 ,  H04L5/00 ,  H04W4/00 ,  H04W72/12

CPC classification number: H04L5/0058 ,  H04L5/0071 ,  H04W72/1252 ,  H04W72/1257

Abstract: Systems and methods for service period recovery in a wireless communications system are provided. An initial service period for transmitting data is assigned to a first remote station. Data period schedule information, including the assignment of the initial service period, is transmitted from a central station. In response to determining that the first remote station is not transmitting during the initial service period, a modified service period is assigned to the first remote station. A service period change announcement, including the assignment of the modified service period, is transmitted from the central station. In response to determining that the first remote station is not transmitting during the modified service period, the initial service period is truncated and a service period truncation is transmitted from the central station.

Abstract translation: 提供了一种用于无线通信系统中的服务周期恢复的系统和方法。 用于发送数据的初始服务周期被分配给第一远程站。 从中央站发送包括初始服务期间的分配的数据周期调度信息。 响应于在初始服务期间确定第一远程站不发送，将修改的服务周期分配给第一远程站。 从中心站发送包括修改后的服务期限的服务期间变更通知。 响应于确定在修改的服务周期期间第一远程站不发送，初始服务周期被截断，并且从中心站发送服务周期截断。