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公开(公告)号：US09768921B2
公开(公告)日：2017-09-19
申请号：US14991564
申请日：2016-01-08
Applicant: Marvell World Trade Ltd.
Inventor： Yakun Sun , Lei Wang , Jinjing Jiang , Liwen Chu , Hongyuan Zhang
CPC classification number: H04L5/0007 , H04L1/0042 , H04L1/0059 , H04L5/0044 , H04L27/12 , H04L27/2613 , H04W84/12
Abstract: A method for generating a physical layer (PHY) data unit includes generating a first signal field to include multiple copies of first signal field content, wherein the first signal field content spans one sub-band of a plurality of sub-bands of the PHY data unit, and wherein the multiple copies collectively span the plurality of sub-bands of the PHY data unit; generating a second signal field to include multiple copies of second signal field content, wherein the second signal field content spans multiple ones of the plurality of sub-bands of the PHY data unit, and wherein the multiple copies of the second signal field collectively span the plurality of sub-bands of the PHY data unit; generating a preamble of the PHY data unit to include at least the first signal field and the second signal field; generating the PHY data unit to include at least the preamble.
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72.发明申请SYSTEMS AND METHODS FOR TRANSMITTING A PREAMBLE WITHIN A WIRELESS LOCAL AREA NETWORK (WLAN) 审中-公开用于在无线局域网（WLAN）中传输前缀的系统和方法公开(公告)号：US20170078915A1
公开(公告)日：2017-03-16
申请号：US15262485
申请日：2016-09-12
Applicant: Marvell World Trade Ltd.
Inventor： Yakun Sun , Hongyuan Zhang , Sudhir Srinivasa , Xiayu Zheng
CPC classification number: H04W28/06 , H04B7/04 , H04B7/0617 , H04L25/0242 , H04L27/2602 , H04L27/2626 , H04L27/2646 , H04W84/12
Abstract: Some embodiments described herein provide a method for transmitting a preamble in accordance with a wireless local area network communication protocol. In some embodiments, a data frame may be obtained for transmission including a preamble compliant with the wireless local area network communication protocol. It may be determined that the preamble includes a first preamble portion that spans multiple symbol durations and a second preamble portion that spans a single symbol duration. The first preamble portion via beamforming may be transmitted based on a first beamforming matrix. When a transmission mode of the second preamble portion is beamforming, a second beamforming matrix may be generated based on the first beamforming matrix, each tone for the second preamble portion may be calculated based on the second beamforming matrix. Each calculated tone may be transmitted in accordance with the wireless local area network communication protocol.
Abstract translation: 本文描述的一些实施例提供了一种根据无线局域网通信协议来发送前同步码的方法。 在一些实施例中，可以获得包括符合无线局域网通信协议的前导码的传输的数据帧。 可以确定前导码包括跨越多个符号持续时间的第一前导码部分和跨越单个符号持续时间的第二前导码部分。 可以基于第一波束形成矩阵来发射通过波束成形的第一前导码部分。 当第二前导码部分的传输模式是波束形成时，可以基于第一波束形成矩阵来生成第二波束形成矩阵，可以基于第二波束成形矩阵来计算第二前导码部分的每个音调。 可以根据无线局域网通信协议来发送每个计算的音调。
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73.发明申请SYSTEMS AND METHODS FOR CROSS-CHANNEL SCHEDULING OF HIGH EFFICIENCY (HE) MULTI-USER (MU) FRAME TRANSMISSION 审中-公开用于高效率（MU）多帧（MU）帧传输的交叉通道调度的系统和方法公开(公告)号：US20170078059A1
公开(公告)日：2017-03-16
申请号：US15262905
申请日：2016-09-12
Applicant: Marvell World Trade Ltd.
Inventor： Yakun Sun , Hongyuan Zhang , Lei Wang
CPC classification number: H04L5/0044 , H04W28/085 , H04W72/0453 , H04W72/0486
Abstract: Embodiments described herein provide a method for cross-channel scheduling of high efficiency (HE) multi-user (MU) frame transmission. In some embodiments, channel information and client station information may be obtained for data transmission. An MU frame containing a data field of a first type and two data fields of a second type may be configured to carry scheduling information relating to one or more channels for the data transmission. It may be determined that a current scheduling setting of the two data fields of the second type leads to unbalanced payload between the one or more channels. The two data fields of the second type may then be adjusted for a balanced channel mapping, and the data field of the first type may be adjusted to reflect the balanced channel mapping. Data based on the adjusted data field of the first type and the adjusted two data fields of the second type may be transmitted via the one or more channels.
Abstract translation: 本文描述的实施例提供了一种用于高效率（多用户）（MU）帧传输的跨信道调度的方法。 在一些实施例中，可以获得用于数据传输的信道信息和客户端站信息。 包含第一类型的数据字段和第二类型的两个数据字段的MU帧可以被配置为携带与用于数据传输的一个或多个信道有关的调度信息。 可以确定第二类型的两个数据域的当前调度设置导致一个或多个信道之间的不平衡有效载荷。 然后可以调整第二类型的两个数据字段用于平衡信道映射，并且可以调整第一类型的数据字段以反映平衡信道映射。 可以经由一个或多个信道来发送基于第一类型的调整数据字段和第二类型的经调整的两个数据字段的数据。
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74.发明授权公开(公告)号：US09590792B2
公开(公告)日：2017-03-07
申请号：US14242674
申请日：2014-04-01
Applicant: Marvell World Trade Ltd.
Inventor： Yi-Ling Chao , Qing Zhao , Leilei Song , Hui-Ling Lou , Yakun Sun
CPC classification number: H04W72/1215 , H04L1/1812 , H04L1/1825 , H04L1/1854 , H04L1/1887 , H04L5/0078 , H04L5/14 , H04W88/06
Abstract: The present disclosure describes systems and techniques relating to wireless communications by devices that employ more than one wireless communication technology. According to an aspect of the described systems and techniques, a device includes: a first radio configured to communicate wirelessly with a first station in accordance with a first wireless communication technology, a second radio configured to communicate wirelessly with a second station in accordance with a second wireless communication technology, a controller configured to (i) terminate scheduled portions of time for sending communications from the first radio to the first station in favor of receiving communications from the second station to the second radio and (ii) restrict which of all available scheduled portions of time for sending communications from the first radio to the first station are provided for termination based on information about types of data transmitted in respective ones of the available scheduled portions of time.
Abstract translation: 本公开描述了与使用多于一种无线通信技术的设备相关的无线通信的系统和技术。 根据所描述的系统和技术的一个方面，一种设备包括：第一无线电，被配置为根据第一无线通信技术与第一站进行无线通信;第二无线电，被配置为与第二站无线通信， 第二无线通信技术，控制器，被配置为（i）终止从第一无线电发送通信到第一站的调度部分时间，有利于接收从第二站到第二无线电的通信，以及（ii）限制所有可用的 提供用于从第一无线电发送通信到第一站的预定部分时间，用于基于在可用的预定调度部分中发送的数据的类型的信息进行终止。
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公开(公告)号：US20160233998A1
公开(公告)日：2016-08-11
申请号：US15004840
申请日：2016-01-22
Applicant: Marvell World Trade Ltd.
Inventor： Yakun Sun , Hongyuan Zhang
CPC classification number: H04L5/0051 , H04B17/336 , H04B17/345 , H04L5/0007 , H04L5/0048 , H04L5/005 , H04L5/0073 , H04L27/2601 , H04W52/243 , H04W52/346 , H04W72/082 , H04W84/12
Abstract: The present disclosure includes systems and techniques relating to interference measurement pilot tones in communication systems. In some implementations, a method includes identifying, by a transmitting device, a pilot pattern for transmission in a plurality of orthogonal frequency-division multiplexing (OFDM) symbols over a wireless local area network (WLAN) channel, the pilot pattern including an interference measurement pilot tone, wherein the interference measurement pilot tone is located at a specified frequency and time location in the plurality of OFDM symbols, the interference measurement pilot tone including a null tone that facilitates a receiving device to measure interference; and transmitting, by the transmitting device, the pilot pattern in the plurality of OFDM symbols over the WLAN channel. The pilot pattern can further include a regular, nonzero pilot tone that facilitates the receiving device to measure a frequency drift or a phase noise.
Abstract translation: 本公开包括与通信系统中的干扰测量导频音有关的系统和技术。 在一些实施方式中，一种方法包括由发射设备通过无线局域网（WLAN）信道识别用于在多个正交频分复用（OFDM）符号中传输的导频模式，所述导频模式包括干扰测量 导频音，其中所述干扰测量导频音位于所述多个OFDM符号中的指定频率和时间位置处，所述干扰测量导频音包括便于接收设备测量干扰的空音; 以及由所述发送装置在所述WLAN信道上发送所述多个OFDM符号中的导频模式。 导频模式可以进一步包括一个常规的非零导频音，这便于接收设备测量频率漂移或相位噪声。
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Patent Agency Ranking
76.发明申请SYSTEM AND METHOD OF TONE MAPPING DURING SINGLE USER AND MULTIPLE USER OPERATING MODES INCLUDING TRANSMISSIONS RESPECTIVELY OF OFDM SYMBOLS AND OFDMA SYMBOLS IN A WLAN 审中-公开在单用户和多用户操作模式下的音频映射的系统和方法，包括OFDM中的符号和OFDMA符号的传输相对于WLAN公开(公告)号：US20160099789A1
公开(公告)日：2016-04-07
申请号：US14823257
申请日：2015-08-11
Applicant: Marvell World Trade Ltd.
Inventor： Hongyuan Zhang , Mingguang Xu , Yakun Sun
CPC classification number: H04J11/003 , H04L5/0007 , H04L5/0044 , H04L5/0048 , H04L5/0073 , H04L27/261 , H04W72/048 , H04W88/06
Abstract: A system including a direct current tone, guard tone, data tone allocation, mapping, and inverse Fourier transform (IFT) modules. The direct current tone module determines a number of direct current tones based on whether a network device is operating in a single user or multi-user mode. The guard tone module determines a number of guard tones based on whether the network device is operating in the single user or multi-user mode. The data tone allocation module determines a number of data tones based on the number of direct current and guard tones. The mapping module receives data and based on the number of data tones, maps the data to the data tones. The IFT module performs a frequency to time domain conversion of an output of the mapping module to generate orthogonal frequency division multiplexing (OFDM) symbols during the single user mode and OFDM access symbols during the multi-user mode.
Abstract translation: 一种包括直流音调，保护音调，数据音调分配，映射和傅立叶逆变换（IFT）模块的系统。 直流音调模块基于网络设备是以单用户还是多用户模式操作来确定多个直流音调。 保护音模块基于网络设备是以单用户还是多用户模式操作来确定多个保护音调。 数据音调分配模块基于直流和保护音的数量来确定数量音调的数量。 映射模块接收数据并根据数据音调的数量将数据映射到数据音调。 在多用户模式期间，IFT模块在单用户模式和OFDM访问符号期间执行对映射模块的输出进行时域转换以产生正交频分复用（OFDM）符号的频率。
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公开(公告)号：US20160021682A1
公开(公告)日：2016-01-21
申请号：US14795233
申请日：2015-07-09
Applicant: Marvell World Trade LTD.
Inventor： Lei WANG , Liwen Chu , Yakun Sun , Hongyuan Zhang , Jinjing Jiang , Mingguang Xu , Hui-Ling Lou
CPC classification number: H04W74/04 , H04L5/0098 , H04W28/0289 , H04W40/244 , H04W72/1289 , H04W84/02 , H04W84/12 , H04W88/02 , H04W88/08
Abstract: An high efficiency wireless local area network access point including a channel access module and a scheduling module. The channel access module accesses a channel of an unlicensed frequency band, which includes a plurality of subchannels. The scheduling module generates a schedule for a plurality of high efficiency wireless local area network client stations to transmit data to the access point via the channel of the unlicensed frequency band. The schedule includes information for the plurality of client stations regarding (i) a time slot in which to access the channel without contention to transmit data to the access point via the channel, (ii) a subchannel of the plurality of subchannels to use during the time slot to transmit data to the access point, and (iii) one or more spatial streams to use on the subchannel and during the time slot to transmit data to the access point.
Abstract translation: 高效无线局域网接入点，包括信道接入模块和调度模块。 信道接入模块访问包括多个子信道的未许可频带的信道。 调度模块生成用于多个高效无线局域网客户站的调度，以经由未许可频带的信道向接入点发送数据。 所述时间表包括所述多个客户端站的信息，所述信息关于（i）无争用地访问所述信道的时隙，以经由所述信道向所述接入点发送数据;（ii）在所述多个子信道期间使用的子信道的子信道， 用于向接入点发送数据的时隙，以及（iii）在子信道上以及在时隙期间使用的一个或多个空间流，以将数据发送到接入点。
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78.发明授权Systems and methods for ordering codewords based on posterior information in successive interference cancellation (SIC) receivers 有权基于后续信息在连续干扰消除（SIC）接收机中排序码字的系统和方法公开(公告)号：US09094029B2
公开(公告)日：2015-07-28
申请号：US14263753
申请日：2014-04-28
Applicant: Marvell World Trade Ltd.
Inventor： Mingguang Xu , Yakun Sun , Hui-Ling Lou
CPC classification number: H03M7/00 , H03M13/09 , H03M13/1102 , H03M13/23 , H03M13/2957 , H03M13/6331 , H04B7/04 , H04B7/0456 , H04L1/0048
Abstract: Systems and methods are provided for determining a decoding order in a successive interference cancellation receiver. The method includes receiving, using control circuitry, a plurality of codewords. The method further includes computing at least one ordering metric for at least one of the plurality of codewords based on posterior information associated with the plurality of codewords, and determining the decoding order based on the at least one ordering metric.
Abstract translation: 提供了用于确定连续干扰消除接收机中的解码顺序的系统和方法。 该方法包括使用控制电路接收多个码字。 所述方法还包括基于与所述多个码字相关联的后验信息来计算所述多个码字中的至少一个的至少一个排序度量，以及基于所述至少一个排序度量确定所述解码顺序。
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79.发明授权Systems and methods for suppressing interference in a signal received by a device having two or more antennas 有权用于抑制由具有两个或更多个天线的设备接收的信号中的干扰的系统和方法公开(公告)号：US08965295B2
公开(公告)日：2015-02-24
申请号：US13654925
申请日：2012-10-18
Applicant: Marvell World Trade Ltd.
Inventor： Raphael Cendrillon , Yakun Sun , Jiwoong Choi , Hui-Ling Lou
CPC classification number: H04B7/08 , H04B7/0851 , H04B7/0854 , H04J11/0036
Abstract: Systems and methods for suppressing interference from a data signal received at a receiving device, where the receiving device has two or more receive antennas, are provided. Characteristics of a channel are estimated, the channel being a channel through which the data signal was transmitted by a transmitting device to the receiving device. A spatial correlation of interference and noise received at the two or more receive antennas of the receiving device is determined based on the estimated characteristics of the channel. The spatial correlation indicates how the interference and noise received at a particular one of the receive antennas is related to the interference and noise received at another one of the receive antennas. The spatial correlation of the interference and noise is used to suppress interference and noise from the data signal received at the receiving device.
Abstract translation: 提供了用于抑制在接收设备处接收的数据信号的干扰的系统和方法，其中接收设备具有两个或更多个接收天线。 估计信道的特性，信道是数据信号通过发送设备发送到接收设备的信道。 基于估计的信道特性，确定在接收设备的两个或更多个接收天线处接收的干扰和噪声的空间相关性。 空间相关性指示在特定一个接收天线处接收的干扰和噪声与在另一个接收天线处接收的干扰和噪声有关。 使用干扰和噪声的空间相关性来抑制在接收设备处接收的数据信号的干扰和噪声。
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80.发明申请SYSTEMS AND METHODS FOR ORDERING CODEWORDS BASED ON POSTERIOR INFORMATION IN SUCCESSIVE INTERFERENCE CANCELLATION (SIC) RECEIVERS 有权基于接收干扰消除（SIC）接收器中的前置信息来订购编码的系统和方法公开(公告)号：US20140327559A1
公开(公告)日：2014-11-06
申请号：US14263753
申请日：2014-04-28
Applicant: Marvell World Trade Ltd.
Inventor： Mingguang Xu , Yakun Sun , Hui-Ling Lou
IPC: H03M7/00
CPC classification number: H03M7/00 , H03M13/09 , H03M13/1102 , H03M13/23 , H03M13/2957 , H03M13/6331 , H04B7/04 , H04B7/0456 , H04L1/0048
Abstract: Systems and methods are provided for determining a decoding order in a successive interference cancellation receiver. The method includes receiving, using control circuitry, a plurality of codewords. The method further includes computing at least one ordering metric for at least one of the plurality of codewords based on posterior information associated with the plurality of codewords, and determining the decoding order based on the at least one ordering metric.
Abstract translation: 提供了用于确定连续干扰消除接收机中的解码顺序的系统和方法。 该方法包括使用控制电路接收多个码字。 所述方法还包括基于与所述多个码字相关联的后验信息来计算所述多个码字中的至少一个的至少一个排序度量，以及基于所述至少一个排序度量确定所述解码顺序。
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