专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2010037100A1 PHYSICAL LAYER DATA UNIT FORMAT 审中-公开
标题翻译：物理层数据单元格式
公开(公告)号：WO2010037100A1
公开(公告)日：2010-04-01
申请号：PCT/US2009/058795
申请日：2009-09-29
申请人： MARVELL WORLD TRADE LTD. , ZHANG, Hongyuan , WU, Songping , LOU, Hui-ling , NABAR, Rohit, U.
发明人： ZHANG, Hongyuan , WU, Songping , LOU, Hui-ling , NABAR, Rohit, U.
IPC分类号： H04J11/00 , H04L5/00
CPC分类号： H04L69/22 , H04J11/00 , H04J13/102 , H04L5/0048 , H04L27/2613
摘要： In a wireless communication system wherein communication devices exchange information utilizing data units that conform to a first format, wherein the first format includes a short training field (STF) spread with a first spread code and a first cover code, a method is for generating a physical layer (PHY) data unit that conforms to a second format, wherein the PHY data unit is for transmitting PHY information. A first portion of the PHY data unit is generated to indicate the PHY data unit conforms to the second format, wherein the first portion of the PHY data unit includes an STF spread with at least one of a second spread code different than the first spread code or a second cover code different than the first cover code. A second portion of the PHY data unit is generated according to the second format, wherein the second portion of the PHY data unit includes PHY information elements not specified by the first format.
摘要翻译：在其中通信设备利用符合第一格式的数据单元来交换信息的无线通信系统中，其中所述第一格式包括利用第一扩展码和第一覆盖码扩展的短训练场（STF），所述方法用于生成物理层（PHY）数据单元，其符合第二格式，其中PHY数据单元用于发送PHY信息。生成PHY数据单元的第一部分以指示PHY数据单元符合第二格式，其中PHY数据单元的第一部分包括具有与第一扩展码不同的第二扩展码中的至少一个的STF扩展或与第一封面代码不同的第二封面代码。根据第二格式生成PHY数据单元的第二部分，其中PHY数据单元的第二部分包括未被第一格式指定的PHY信息元素。

2. 发明申请

WO2010027864A3 PHYSICAL LAYER DATA UNIT FORMAT 审中-公开
公开(公告)号：WO2010027864A3
公开(公告)日：2010-03-11
申请号：PCT/US2009/055069
申请日：2009-08-26
申请人： MARVELL WORLD TRADE LTD. , ZHANG, Hongyuan , NABAR, Rohit, U. , SHEN, Manyuan , WU, Songping , LOU, Hui-ling , LIU, Yong
发明人： ZHANG, Hongyuan , NABAR, Rohit, U. , SHEN, Manyuan , WU, Songping , LOU, Hui-ling , LIU, Yong
IPC分类号： H04L27/26
摘要： In a wireless communication system wherein communication devices exchange information utilizing data units that conform to a first format, a beamforming training (BFT) data unit that conforms to a second format is transmitted, wherein a length of the BFT data unit is shorter than lengths supported by the first format, wherein the BFT data unit is for transmitting PHY beamforming training information. Information to indicate the BFT data unit conforms to the second format is transmitted to a receiving device. The BFT data unit is generated according to the second format, wherein the BFT data unit includes BFT information elements. The BFT data unit is then transmitted to the receiving device.

3. 发明申请

WO2009012448A2 WIRELESS NETWORK WITH SIMULTANEOUS UPLINK TRANSMISSION OF INDEPENDENT DATA FROM MULTIPLE CLIENT STATIONS 审中-公开
标题翻译：无线网络同时通过上行传输多客户站的独立数据
公开(公告)号：WO2009012448A2
公开(公告)日：2009-01-22
申请号：PCT/US2008/070469
申请日：2008-07-18
申请人： MARVELL WORLD TRADE LTD. , NABAR, Rohit U. , ZHANG, Hongyuan , LOU, Hui-ling
发明人： NABAR, Rohit U. , ZHANG, Hongyuan , LOU, Hui-ling
CPC分类号： H04L5/0055 , H04B7/2618 , H04L5/0005 , H04W52/04 , H04W72/042 , H04W72/0446 , H04W88/08
摘要： A wireless network comprises R client stations that respectively generate simultaneous uplink transmission (SUT) data, where R is an integer greater than one. An access point (AP) receives SUT data from each of the R client stations during an SUT period.
摘要翻译：无线网络包括分别产生同时上行链路传输（SUT）数据的R个客户站，其中R是大于1的整数。接入点（AP）在SUT期间接收来自每个R客户端站的SUT数据。

4. 发明申请

WO2008140822A1 BICM DECODING IN THE PRESENCE OF CO-CHANNEL INTERFERENCE 审中-公开
标题翻译： BICM解码存在共通道干扰
公开(公告)号：WO2008140822A1
公开(公告)日：2008-11-20
申请号：PCT/US2008/006092
申请日：2008-05-12
申请人： MARVELL WORLD TRADE LTD. , LEE, Jungwon , NABAR, Rohit, U. , LOU, Hui-ling
发明人： LEE, Jungwon , NABAR, Rohit, U. , LOU, Hui-ling
IPC分类号： H04L25/06
CPC分类号： H04B1/1027 , H04L25/067
摘要： Systems and methods are provided for computing soft information for digital information based on a received signal, where the received signal suffers from noise and interference. A receiver that decodes the received signal may estimate channel information, such as the channel gain, associated with the interfering source. The receiver may also obtain modulation information through a backbone network or by decoding control information transmitted by the interfering source. Using the modulation information and the channel information, the receiver may estimate the effect that interference has on the received signal, and may compute soft information (e.g., a log-likelihood ratio) for the digital information.
摘要翻译：提供了系统和方法，用于基于接收到的信号来计算用于数字信息的软信息，其中所接收的信号受到噪声和干扰的影响。对接收到的信号进行解码的接收机可以估计与干扰源相关联的信道信息，例如信道增益。接收机还可以通过骨干网获得调制信息，或通过解码由干扰源发送的控制信息。使用调制信息和信道信息，接收机可以估计干扰对接收信号的影响，并且可以计算数字信息的软信息（例如，对数似然比）。

5. 发明申请

WO2019182685A1 SYSTEMS AND METHODS FOR GENERATING AND TRANSMITTING SHORT LOW POWER WAKE-UP REQUEST (WUR) FRAMES IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
公开(公告)号：WO2019182685A1
公开(公告)日：2019-09-26
申请号：PCT/US2019/016066
申请日：2019-01-31
申请人： MARVELL WORLD TRADE LTD. , CHU, Liwen , ZHANG, Hongyuan , LOU, Hui-ling
发明人： CHU, Liwen , ZHANG, Hongyuan , LOU, Hui-ling
IPC分类号： H04W52/02
摘要： Embodiments described herein provide a method for creating a low power wake-up radio frame. The method comprises generating, at an access point, a wake-up radio frame for transmission to one or more client stations, determining whether the wake-up radio frame is to be transmitted inside or outside a basic service set associated with the access point, the basic service set having a basic service set identifier that is used to identify the access point. And in response to determining that the wake-up radio frame is to be transmitted outside the basic service set, computing, a target frame check sequence for the wake-up radio frame without using the basic service set identifier associated with the basic service set, appending the target frame check sequence to the wake-up radio frame; and transmitting, to one or more client stations, the wake-up radio frame with the appended target frame check sequence.

6. 发明申请

WO2019147319A1 ERROR RECOVERY IN NULL DATA PACKET (NDP) RANGING 审中-公开
公开(公告)号：WO2019147319A1
公开(公告)日：2019-08-01
申请号：PCT/US2018/058931
申请日：2018-11-02
申请人： MARVELL WORLD TRADE LTD. , CHU, Liwen , LOU, Hui-ling , ZHANG, Hongyuan
发明人： CHU, Liwen , LOU, Hui-ling , ZHANG, Hongyuan
IPC分类号： G01S5/14 , G01S5/00 , G01S5/12 , G01S3/46
摘要： A first communication device transmits a first physical layer protocol data units (PPDU) that includes a first null data packet announcement (NDPA) frame as part of a first ranging measurement exchange. The first communication device transmits a first null data packet (NDP) as part of the first ranging measurement exchange, and records a transmit time of the first NDP. The first communication device determines whether a second NDP was received correctly from a second communication device as part of the first ranging measurement exchange. In response to determining that the second NDP was not received correctly, the first communication device commences a second ranging measurement exchange, including transmitting a second PPDU that includes a second NDPA frame as part of the second ranging measurement exchange.

7. 发明申请

WO2010099040A1 TECHNIQUES FOR FLEXIBLE AND EFFICIENT BEAMFORMING 审中-公开
标题翻译：柔性和高效波束形成技术
公开(公告)号：WO2010099040A1
公开(公告)日：2010-09-02
申请号：PCT/US2010/024715
申请日：2010-02-19
申请人： MARVELL WORLD TRADE LTD. , LIU, Yong , ZHANG, Hongyuan , LOU, Hui-ling , BANERJEA, Raja
发明人： LIU, Yong , ZHANG, Hongyuan , LOU, Hui-ling , BANERJEA, Raja
IPC分类号： H04B7/06 , H04B7/08
CPC分类号： H04B7/0408 , H04B7/0695 , H04B7/088
摘要： A method includes generating a first data unit to be transmitted during a first time period, including generating a field that specifies a first number of beamforming training data units that can be communicated during a first training session; processing a second data unit received during a second time period, including determining whether the first training session was accepted based on a first field of the second data unit, and determining a second number of beamforming training data units that can be communicated during a second training session based on a second field of the second data unit; and if the first training session was accepted, causing the specified first number of beamforming training data units to be communicated during the first training session.
摘要翻译：一种方法包括生成在第一时间段期间要发送的第一数据单元，包括生成指定在第一训练会话期间可以传送的波束形成训练数据单元的第一数量的字段; 处理在第二时间段期间接收的第二数据单元，包括基于所述第二数据单元的第一场确定所述第一训练会话是否被接受，以及确定可以在第二训练期间传送的波束成形训练数据单元的第二数量会话基于第二数据单元的第二字段; 并且如果第一训练会话被接受，则在第一训练期间导致指定的第一数量的波束形成训练数据单元被通信。

8. 发明申请

WO2016077490A1 ACKNOWLEDGMENT FOR MULTIPLE USER COMMUNICATION IN A WLAN 审中-公开
标题翻译：在WLAN中进行多用户通信的确认
公开(公告)号：WO2016077490A1
公开(公告)日：2016-05-19
申请号：PCT/US2015/060211
申请日：2015-11-11
申请人： MARVELL WORLD TRADE LTD. , CHU, Liwen , ZHANG, Hongyuan , WANG, Lei , LOU, Hui-ling , JIANG, Jinjing
发明人： CHU, Liwen , ZHANG, Hongyuan , WANG, Lei , LOU, Hui-ling , JIANG, Jinjing
IPC分类号： H04L5/00 , H04B7/00
CPC分类号： H04W72/0453 , H04B7/0452 , H04L5/0007 , H04L5/0037 , H04L5/0055 , H04L5/0094 , H04L27/2608 , H04W84/12
摘要： 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.
摘要翻译：第一通信设备生成具有用于多个第二通信设备的独立数据的多用户（MU）物理层（PHY）数据单元。第一通信设备还产生相应的控制帧，以提示第二通信设备发送正交频分多址（OFDMA）PHY数据单元，以确认第二通信设备接收到MU PHY数据单元。 MU PHY数据单元和各个控制帧被发送到多个第二通信设备。第一通信设备从至少一些第二通信设备接收OFDMA PHY数据单元。第一通信设备处理OFDMA PHY数据单元以确定多个第二通信设备是否接收到MU PHY数据单元。

9. 发明申请

WO2015081132A1 ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS FOR WIRELESS LOCAL AREA NETWORK 审中-公开
标题翻译：无线局域网的正交频分多址
公开(公告)号：WO2015081132A1
公开(公告)日：2015-06-04
申请号：PCT/US2014/067483
申请日：2014-11-25
申请人： MARVELL WORLD TRADE LTD. , ZHANG, Hongyuan , SUN, Yakun , LOU, Hui-ling , CHU, Liwen
发明人： ZHANG, Hongyuan , SUN, Yakun , LOU, Hui-ling , CHU, Liwen
IPC分类号： H04L27/26
CPC分类号： H04W72/0453 , H04L5/0007 , H04L5/0041 , H04L5/0044 , H04L5/006 , H04L27/2602 , H04L27/2613 , H04L27/2627 , H04W84/12
摘要： A method for generating an orthogonal frequency division multiple access (OFDMA) data unit is described. A plurality of different orthogonal frequency division multiplex (OFDM) tone blocks for a wireless local area network (WLAN) communication channel are assigned to a plurality of devices including a first device and second device. The plurality of different OFDM tone blocks includes at least a first OFDM tone block assigned to the first device and a second OFDM tone block assigned to the second device. The first OFDM tone block and the second OFDM tone block together span a bandwidth equal to a smallest channel bandwidth of a legacy WLAN communication protocol. An OFDMA data unit is generated for the WLAN communication channel. The OFDMA unit includes a preamble portion and a data portion. The preamble portion has i) at least a legacy portion that spans the entire WLAN communication channel, ii) a first non-legacy portion that spans the first OFDM tone block, and iii) a second non-legacy portion that spans the second OFDM tone block.
摘要翻译：描述了一种用于产生正交频分多址（OFDMA）数据单元的方法。用于无线局域网（WLAN）通信信道的多个不同的正交频分复用（OFDM）音调块被分配给包括第一设备和第二设备的多个设备。多个不同的OFDM音调块至少包括分配给第一设备的第一OFDM音调块和分配给第二设备的第二OFDM音调块。第一OFDM音调块和第二OFDM音调块一起跨越等于传统WLAN通信协议的最小信道带宽的带宽。为WLAN通信信道生成OFDMA数据单元。 OFDMA单元包括前导码部分和数据部分。前导码部分具有i）至少跨越整个WLAN通信信道的传统部分，ii）跨越第一OFDM音调块的第一非传统部分，以及iii）跨越第二OFDM音调的第二非传统部分块。

10. 发明申请

WO2019156710A1 BLOCK ACK FRAME WITH FLOW CONTROL 审中-公开
公开(公告)号：WO2019156710A1
公开(公告)日：2019-08-15
申请号：PCT/US2018/044622
申请日：2018-07-31
申请人： MARVELL WORLD TRADE LTD. , MARVELL SEMICONDUCTOR, INC. , LOU, Hui-ling
发明人： LOU, Hui-ling , JIANG, Jinjing , CHU, Liwen , CHAO, Yi-ling , ZHANG, Hongyuan
IPC分类号： H04L1/16 , H04L1/18 , H04W72/12 , H04W28/02 , H04W88/06 , H04W16/14
摘要： A first communication device generates a block acknowledgement (BA) frame that includes (i) acknowledgement information to indicate, to a second communication device, whether the first communication device successfully received multiple media access control (MAC) frames transmitted by the second communication device, and (ii) an indication of a change in a BA session between the first communication device and the second communication device. The first communication device transmits the BA frame to the second communication device, where the BA frame causes the second communication device to adopt the change in the BA session in response to receiving the BA frame.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式