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11. 发明申请

WO2018057518A1 SYSTEMS AND METHODS FOR TRANSMITTING A WAKE-UP RADIO SIGNAL TO LOW POWER DEVICES IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：用于在无线通信系统中向低功率设备发送唤醒无线电信号的系统和方法
公开(公告)号：WO2018057518A1
公开(公告)日：2018-03-29
申请号：PCT/US2017/052278
申请日：2017-09-19
申请人： MARVELL WORLD TRADE LTD. , MU, Hua , CAO, Rui , ZHANG, Hongyuan
发明人： MU, Hua , CAO, Rui , ZHANG, Hongyuan
IPC分类号： H04W52/02
摘要： Embodiments described herein provide a method for transmitting a wake-up radio signal to low power devices in a wireless local area network. Data for transmission to a wireless device is received at a wireless access point, and a wake-up radio packet is generated. The wake-up signal includes a first preamble, a second preamble, and payload data including a wake-up user identifier assigned to the wireless device. The wake-up radio packet is encoded into an encoded wake-up radio frame including a plurality of encoded data symbols representing modulated payload data. The encoded wake-up radio frame is modulated onto a modulated waveform for transmission. A signal corresponding to the modulated waveform is transmitted to the wireless device.
摘要翻译：这里描述的实施例提供了一种用于向无线局域网中的低功率设备发送唤醒无线电信号的方法。传输到无线设备的数据在无线接入点处被接收，并且生成唤醒无线电分组。唤醒信号包括第一前导码，第二前导码和包括分配给无线设备的唤醒用户标识符的有效载荷数据。唤醒无线电分组被编码为包括代表调制的有效载荷数据的多个编码的数据符号的编码的唤醒无线电帧。编码的唤醒无线电帧被调制到调制波形上进行传输。对应于调制波形的信号被发送到无线设备。

12. 发明申请

WO2019207425A1 PILOTS FOR WIRELESS ACCESS IN VEHICULAR ENVIRONMENTS 审中-公开
公开(公告)号：WO2019207425A1
公开(公告)日：2019-10-31
申请号：PCT/IB2019/053184
申请日：2019-04-17
申请人： MARVELL WORLD TRADE LTD.
发明人： CAO, Rui , ZHANG, Hongyuan , ZHENG, Xiayu , LOU, Hui-Ling
IPC分类号： H04L5/00 , H04L27/26
摘要： A method for communication over a wireless interface between transceivers that are moving with respect to each other. The method includes transmitting, by a communication station (STA, 22) in a moving vehicle (24) over a wireless channel to a receiver (26, 30) outside the vehicle, a sequence of data symbols (62) encoded in accordance with a frequency-domain multiplexing scheme extending over a range of sub-carrier tones (64). A condition affecting the wireless channel is evaluated. Responsively to the evaluated condition, a pilot scheme (74, 76) is selected from among a plurality of available pilot schemes, for interleaving of pilot signals in specified sub-carrier tones (66) of the data symbols. An indication of the selected pilot scheme is exchanged between the STA and the receiver. The pilot signals are interleaved in the transmitted data symbols in accordance with the selected pilot scheme.

13. 发明申请

WO2016209622A1 SYSTEMS AND METHODS FOR IMPLEMENTING AN OFDMA LTF DESIGN FOR WIRELESS NETWORK COMMUNICATION 审中-公开
标题翻译：用于实现无线网络通信的OFDMA LTF设计的系统和方法
公开(公告)号：WO2016209622A1
公开(公告)日：2016-12-29
申请号：PCT/US2016/036382
申请日：2016-06-08
申请人： MARVELL WORLD TRADE LTD. , SUN, Yakun , ZHANG, Hongyuan , CAO, Rui
发明人： SUN, Yakun , ZHANG, Hongyuan , CAO, Rui
IPC分类号： H04L27/26
CPC分类号： H04L27/2602 , H04L27/2613
摘要： Aligning HE-LTFs corresponding to a plurality of users by determining a respective number of spatial streams corresponding to each user, determining a highest respective number of spatial streams of the spatial streams, and setting an alignment number of HE-LTF symbols to be equal to or larger than the highest respective number of spatial streams. For each respective user, padding symbols may be added to the respective generating matrix to yield a number of HE-LTF symbols in the respective matrix that corresponds to the alignment number.
摘要翻译：通过确定与每个用户相对应的空间流的相应数目来确定与多个用户相对应的HE-LTF，确定空间流的空间流的最高相应数目，并将HE-LTF符号的对齐数量设置为等于或大于最高相应数量的空间流。对于每个相应的用户，可以将填充符号添加到相应的生成矩阵中，以产生与对齐数相对应的相应矩阵中的多个HE-LTF符号。

14. 发明申请

WO2016201273A1 SYSTEMS, APPARATUSES AND METHODS FOR A SIGNAL EXTENSION PADDING SCHEME 审中-公开
标题翻译：一种信号扩展方案的系统，装置和方法
公开(公告)号：WO2016201273A1
公开(公告)日：2016-12-15
申请号：PCT/US2016/036955
申请日：2016-06-10
申请人： MARVELL WORLD TRADE LTD. , SUN, Yakun , ZHANG, Hongyuan , CAO, Rui , SRINIVASA, Sudhir
发明人： SUN, Yakun , ZHANG, Hongyuan , CAO, Rui , SRINIVASA, Sudhir
IPC分类号： H04L1/00 , H04L27/26
CPC分类号： H04L1/0008 , H04L1/0009 , H04L1/0041 , H04L1/0057 , H04L5/0007 , H04L27/2602
摘要： Systems, apparatuses and methods described herein provide a method for padding a signal extension of orthogonal frequency-division multiplexing (OFDM) symbols. A transceiver may obtain a plurality of data symbols for transmission, and determine that a number of information bits for a last symbol of the plurality of data symbols is not an integer value. A special padding rule may be applied to add padding bits to the last symbol. A number of coded bits for the last symbol may be determined when the number of information bits for the last symbol has changed, and the plurality of data symbols for data transmission may be encoded based on the determined number of coded bits for the last symbol.
摘要翻译：本文描述的系统，装置和方法提供了一种用于填充正交频分复用（OFDM）符号的信号扩展的方法。收发机可以获得用于发送的多个数据符号，并且确定多个数据符号中的最后一个符号的信息比特数不是整数值。可以应用特殊的填充规则来将填充位添加到最后一个符号。当最后一个符号的信息位的数量已经改变时，可以确定用于最后一个符号的多个编码比特，并且可以基于确定的最后一个符号的编码比特数来编码用于数据传输的多个数据符号。

15. 发明申请

WO2015161068A1 SIGNAL FIELD LENGTH INDICATION IN A HIGH EFFICIENCY WIRELESS LOCAL AREA NETWORK (WLAN) 审中-公开
标题翻译：高效无线局域网（WLAN）中的信号场长度指示
公开(公告)号：WO2015161068A1
公开(公告)日：2015-10-22
申请号：PCT/US2015/026160
申请日：2015-04-16
申请人： MARVELL WORLD TRADE LTD. , CAO, Rui , ZHENG, Xiayu , ZHANG, Hongyuan
发明人： CAO, Rui , ZHENG, Xiayu , ZHANG, Hongyuan
IPC分类号： H04L27/26
CPC分类号： H04L5/0007 , H04B7/12 , H04L27/2607 , H04L27/261
摘要： A first set of orthogonal frequency domain multiplexing (OFDM) symbols for a first portion of a PHY data unit and a second set of OFDM symbols for a second portion of the PHY data unit are generated. OFDM symbols of the first set are generated with a first OFDM tone spacing. At least some OFDM symbols of the second set are generated with a second tone spacing different from the first tone spacing. A value for a length indicator indicative of a duration of the PHY data unit is determined based on the first tone spacing and the second tone spacing. The first portion of the PHY data unit is generated to include (i) the first set of OFDM symbols and (ii) the length indicator set to the determined value. The second portion of the PHY data unit is generated to include the second set of OFDM symbols.
摘要翻译：生成用于PHY数据单元的第一部分的第一组正交频域复用（OFDM）符号和用于PHY数据单元的第二部分的第二组OFDM符号。以第一OFDM音调间隔生成第一组的OFDM符号。以与第一音调间隔不同的第二音调间隔生成第二组的至少一些OFDM符号。基于第一音调间隔和第二音调间隔来确定指示PHY数据单元的持续时间的长度指示符的值。生成PHY数据单元的第一部分以包括（i）第一组OFDM符号，以及（ii）将长度指示符设置为确定的值。生成PHY数据单元的第二部分以包括第二组OFDM符号。

16. 发明申请

WO2020104931A1 SIGNALING OF ENCODING SCHEMES IN PACKETS TRANSMITTED OVER A WLAN 审中-公开
公开(公告)号：WO2020104931A1
公开(公告)日：2020-05-28
申请号：PCT/IB2019/059920
申请日：2019-11-19
申请人： MARVELL WORLD TRADE LTD.
发明人： SRINIVASA, Sudhir , ZHANG, Hongyuan , ZHANG, Yan , CAO, Rui , CHU, Liwen
IPC分类号： H04L1/00
摘要： A method for data transmission in a wireless local area network (WLAN). The method includes receiving, in a physical layer (PHY) interface (32) of a first node (22) in the WLAN, data for transmission over the WLAN. The received data are divided in the PHY interface into a sequence of data blocks (42) having respective lengths, and encoding the data blocks using an error correcting code (ECC). The encoded data blocks are encapsulated in a PHY protocol data unit (PPDU 24) together with encoding metadata including at least an indication of the respective lengths of the data blocks. The PPDU is transmitted over the WLAN from the first node to a second node (26) in the WLAN.

17. 发明申请

WO2020053710A1 MULTI-PROTOCOL FRAME FORMAT 审中-公开
公开(公告)号：WO2020053710A1
公开(公告)日：2020-03-19
申请号：PCT/IB2019/057476
申请日：2019-09-05
申请人： MARVELL WORLD TRADE LTD.
发明人： CAO, Rui , ZHANG, Hongyuan , SHARMA, Prashant
IPC分类号： H04L27/26 , H04W74/08
摘要： Communication apparatus (22, 26, 27, 30) includes a transceiver (38) configured to transmit and receive signals over a wireless channel in accordance with both a first communication protocol and a second communication protocol. The second communication protocol is backward- compatible with the first communication protocol, and has a first variant having an extended communication throughput, which is greater than the nominal communication throughput of the first protocol, and a second variant having an extended range, which is greater than the nominal range of the first protocol. A communication controller (32, 42) generates data frames (50, 78, 84) for transmission by the transceiver, including frame headers (52, 54) in a header format that is compatible both with the first communication protocol and with both the first and second variants of the second communication protocol. The header format defines first fields having respective first values provided to support the first variant and second fields having respective second values provided to support the second variant.

18. 发明申请

WO2017223221A8 METHOD AND APPARATUS FOR TRANSMISSION 审中-公开
公开(公告)号：WO2017223221A8
公开(公告)日：2017-12-28
申请号：PCT/US2017/038578
申请日：2017-06-21
申请人： MARVELL WORLD TRADE LTD. , SUN, Yakun , ZHANG, Hongyuan , CHU, Liwen , WANG, Lei , JIANG, Jinjing , CAO, Rui , ZHANG, Yan
发明人： SUN, Yakun , ZHANG, Hongyuan , CHU, Liwen , WANG, Lei , JIANG, Jinjing , CAO, Rui , ZHANG, Yan
IPC分类号： H04L27/26 , H04W4/00 , H04L5/00
摘要： Aspects of the disclosure provide an apparatus that includes a transceiver circuit and a processing circuit. The transceiver circuit is configured to receive a trigger signal this is transmitted by another apparatus. The trigger signal triggers transmissions by a first group of apparatuses including the apparatus, and defers transmissions by a second group of apparatuses that interfere the transmissions by the first group of apparatuses. The processing circuit is configured to, in response to the trigger signal, generate a frame with a first preamble structure that is different from a second preamble structure that is used by the second group of apparatuses, and provide the generated frame to the transceiver circuit for transmission.

19. 发明申请

WO2017223221A1 METHOD AND APPARATUS FOR TRANSMISSION 审中-公开
标题翻译：传输方法和设备
公开(公告)号：WO2017223221A1
公开(公告)日：2017-12-28
申请号：PCT/US2017/038578
申请日：2017-06-21
申请人： MARVELL WORLD TRADE LTD. , SUN, Yakun , ZHANG, Hongyaun , CHU, Liwen , WANG, Lei , JIANG, Jinjing , CAO, Rui , ZHANG, Yan
发明人： SUN, Yakun , ZHANG, Hongyaun , CHU, Liwen , WANG, Lei , JIANG, Jinjing , CAO, Rui , ZHANG, Yan
IPC分类号： H04L27/26 , H04W4/00 , H04L5/00
CPC分类号： H04L1/0083 , H04L1/0033 , H04L5/0062 , H04L5/0091 , H04L27/2613 , H04W4/70
摘要： Aspects of the disclosure provide an apparatus that includes a transceiver circuit and a processing circuit. The transceiver circuit is configured to receive a trigger signal this is transmitted by another apparatus. The trigger signal triggers transmissions by a first group of apparatuses including the apparatus, and defers transmissions by a second group of apparatuses that interfere the transmissions by the first group of apparatuses. The processing circuit is configured to, in response to the trigger signal, generate a frame with a first preamble structure that is different from a second preamble structure that is used by the second group of apparatuses, and provide the generated frame to the transceiver circuit for transmission.
摘要翻译：本公开的方面提供了一种包括收发器电路和处理电路的设备。收发器电路被配置为接收由另一装置发送的触发信号。触发信号触发包括该设备的第一组设备的传输，并推迟第二组设备的传输，该第二组设备干扰第一组设备的传输。处理电路被配置为响应于触发信号来生成具有第一前导码结构的帧，该第一前导码结构不同于第二组设备所使用的第二前导码结构，并且将生成的帧提供给收发器电路用于传输。

20. 发明申请

WO2017221186A1 CHANNEL BONDING DESIGN AND SIGNALING IN WIRELESS COMMUNICATIONS 审中-公开
标题翻译：无线通信中的信道绑定设计和信令
公开(公告)号：WO2017221186A1
公开(公告)日：2017-12-28
申请号：PCT/IB2017/053720
申请日：2017-06-21
申请人： MARVELL WORLD TRADE LTD.
发明人： CAO, Rui , ZHANG, Hongyuan
IPC分类号： H04L5/00
摘要： Systems and techniques relating to wireless communications are described. A transmitter for a wireless local area network (WLAN) identifies a channel bonding mode out of a number of channel bonding modes. The channel bonding mode includes two or more available channels used by the transmitter for data transmission in the WLAN, and the two or more available channels indicating at least one busy channel not used by the transmitter for data transmission. The channel bonding mode is signaled to a receiver using a bandwidth field of a legacy signal field that is duplicated across respective channels used in the WLAN, the legacy signal field being in a preamble portion of a frame. The frame is transmitted to the receiver, wherein the frame includes a data portion of the frame that occupies the two or more available channels according to the channel bonding mode.
摘要翻译：描述了与无线通信有关的系统和技术。用于无线局域网（WLAN）的发射机从多种信道绑定模式中识别信道绑定模式。信道绑定模式包括发射机用于WLAN中的数据传输的两个或更多个可用信道，并且两个或更多个可用信道指示发射机未用于数据传输的至少一个繁忙信道。使用在WLAN中使用的相应信道上复制的传统信号字段的带宽字段将信道绑定模式用信号通知给接收器，传统信号字段位于帧的前导码部分中。该帧被发送到接收器，其中帧包括根据信道绑定模式占用两个或更多个可用信道的帧的数据部分。

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