-
公开(公告)号：US10009894B2
公开(公告)日：2018-06-26
申请号：US14955017
申请日：2015-11-30
Applicant: Marvell World Trade Ltd.
Inventor： Hongyuan Zhang , Yakun Sun , Hui-Ling Lou , Liwen Chu
CPC classification number: H04W72/0453 , H04L5/0007 , H04L5/0041 , H04L5/0044 , H04L5/006 , H04L27/2602 , H04L27/2613 , H04L27/2627 , H04W84/12
Abstract: A plurality of different OFDM tone blocks for a wireless local area network (WLAN) communication channel are assigned to a plurality of devices. An OFDMA data unit is generated, the OFDMA unit including a preamble portion and a data portion, the preamble portion having at least i) a first legacy portion that corresponds to at least a first OFDM tone block, ii) a second legacy portion that corresponds to a second OFDM tone block, iii) a first non-legacy portion that corresponds to the first OFDM tone block, iv) a second non-legacy portion that corresponds to the second OFDM tone block, and v) a third non-legacy portion that corresponds to a third OFDM tone block. The first OFDM tone block and the second OFDM tone block are separated in frequency by at least the third OFDM tone block.
-
12.发明授权公开(公告)号：US10004081B2
公开(公告)日：2018-06-19
申请号：US15371895
申请日：2016-12-07
Applicant: Marvell World Trade Ltd.
Inventor： Yakun Sun , Hongyuan Zhang
CPC classification number: H04W72/085 , H04B7/0452 , H04B7/0697 , H04L5/0007 , H04L5/0023 , H04L5/0037 , H04L5/0044 , H04L5/0053 , H04L5/0064 , H04L5/0092 , H04L5/0094 , H04L27/2613 , H04L2025/03426 , H04W72/042 , H04W84/12
Abstract: Embodiments described herein provide a method for resource unit signaling with reduced data bits in a wireless local area network. At a wireless transceiver, a data frame may be obtained for transmission. The data frame includes a first preamble portion and a second preamble portion compliant with a wireless local area network communication protocol. When an available resource unit for transmitting the data frame is less than an allowed bandwidth, the first preamble portion and the second preamble portion may be configured with resource unit signaling bits. When the available resource unit is greater than or equal to the allowed bandwidth, the resource unit may be virtually divided into a plurality of channels. At least one of the first preamble portion and the second preamble portion may be configured with a first number of bits representing a number of users spatially multiplexed on a channel from the plurality of channels.
-
公开(公告)号：US09992001B2
公开(公告)日：2018-06-05
申请号：US15004840
申请日：2016-01-22
Applicant: Marvell World Trade Ltd.
Inventor： Yakun Sun , Hongyuan Zhang
IPC: H04L5/00 , H04W72/08 , H04B17/336 , H04B17/345 , H04W52/34 , H04L27/26 , H04W84/12 , H04W52/24
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.
-
公开(公告)号：US09853791B2
公开(公告)日：2017-12-26
申请号：US14968255
申请日：2015-12-14
Applicant: Marvell World Trade Ltd.
Inventor： Liwen Chu , Hui-Ling Lou , Hongyuan Zhang , Yakun Sun , Xiayu Zheng , Rui Cao
CPC classification number: H04L5/0053 , H04L5/0007 , H04L5/0037 , H04L5/0094 , H04L25/0224 , H04L27/2626 , H04W72/0446 , H04W74/002 , H04W74/0816 , H04W84/12
Abstract: A first communication device transmits a first control frame to multiple second communication devices via a wireless communication medium, wherein the first control frame i) indicates to other communication devices that the wireless communication medium is reserved for a first time period, and ii) indicates that the second communication devices are requested to simultaneously transmit respective second control frames to the first communication device via the wireless communication medium, wherein the second control frames are to include information indicating to other communication devices that the wireless communication medium is reserved for a second time period that is a subset of the first time period.
-
公开(公告)号：US09629169B2
公开(公告)日：2017-04-18
申请号：US14488240
申请日：2014-09-16
Applicant: Marvell World Trade Ltd.
Inventor： Hongyuan Zhang , Yakun Sun , Hui-Ling Lou
CPC classification number: H04W72/082 , H04W16/14 , H04W28/0236 , H04W72/0446 , H04W74/0816 , H04W84/12
Abstract: A presence of interference between a first wireless network and a second wireless network is determined. Transmissions in the first wireless network are coordinated with transmissions in the second wireless network to reduce interference between the first wireless network and the second wireless network. Transmissions in the first wireless network are scheduled based on the coordinating to reduce interference between the first wireless network and the second wireless network.
-
Patent Agency Ranking
公开(公告)号：US20170041030A1
公开(公告)日：2017-02-09
申请号：US15331031
申请日：2016-10-21
Applicant: Marvell World Trade Ltd.
Inventor： Yakun Sun , Hui-Ling Lou
CPC classification number: H04B1/10 , H04J11/0056 , H04L5/0057 , H04L27/2613 , H04L27/2647 , H04W56/00 , H04W56/0015 , H04W72/042
Abstract: Systems and methods for mitigating known interference at a receiving device are provided. A signal from a transmission source is received by a receiving device that is affected by an interference source. At least one of a first pilot signal associated with the transmission source and a second pilot signal associated with the interfering source is determined. The first pilot signal includes information broadcast from the transmission source and the second pilot signal includes information broadcast from the interference source. Interference caused by the interference source is mitigated from the received signal using at least one of the first pilot signal and the second pilot signal.
Abstract translation: 提供了用于减轻接收装置处的已知干扰的系统和方法。 来自发送源的信号由受干扰源影响的接收装置接收。 确定与发送源相关联的第一导频信号和与干扰源相关联的第二导频信号中的至少一个。 第一导频信号包括从发送源广播的信息，第二导频信号包括从干扰源广播的信息。 使用第一导频信号和第二导频信号中的至少一个，从接收信号中减轻由干扰源引起的干扰。
-
17.发明申请SYSTEMS AND METHODS FOR IMPLEMENTING AN OFDMA LTF DESIGN FOR WIRELESS NETWORK COMMUNICATION 审中-公开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：US20160380794A1
公开(公告)日：2016-12-29
申请号：US15174263
申请日：2016-06-06
Applicant: Marvell World Trade Ltd.
Inventor： Yakun Sun , Hongyuan Zhang , Rui Cao
IPC: H04L27/26
CPC classification number: H04L27/2602 , H04L27/2613
Abstract: Systems, methods, and apparatuses are disclosed herein for 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, a respective matrix of HE-LTF symbols corresponding to the respective number of spatial streams of the respective user is selected, and it is determined whether the respective matrix of HE-LTF symbols has fewer symbols than the alignment number. In response to determining that the respective matrix of HE-LTF symbols has fewer symbols than the alignment number, padding symbols may be added to the respective matrix to yield a number of HE-LTF symbols in the respective matrix that corresponds to the alignment number.
Abstract translation: 本文公开了用于对准与多个用户对应的HE-LTF的系统，方法和装置，通过确定对应于每个用户的相应数量的空间流，确定空间流的空间流的最高相应数量，并且设置对齐 HE-LTF符号的数量等于或大于最高相应数量的空间流。 对于每个相应用户，选择对应于相应用户的相应数量的空间流的HE-LTF符号的相应矩阵，并且确定HE-LTF符号的相应矩阵是否具有比对准号少的符号。 响应于确定HE-LTF符号的相应矩阵具有比对准号码少的符号，可以将填充符号添加到相应的矩阵中，以产生对应于对齐号的相应矩阵中的多个HE-LTF符号。
-
公开(公告)号：US20160353323A1
公开(公告)日：2016-12-01
申请号：US15167643
申请日：2016-05-27
Applicant: MARVELL WORLD TRADE LTD.
Inventor： Yakun Sun , Hongyuan Zhang , Liwen Chu , Lei Wang , Jinjing Jiang
CPC classification number: H04B7/0456 , H04L5/0037 , H04L5/0053 , H04L5/0092 , H04W72/042 , H04W72/0453 , H04W84/12
Abstract: A physical layer (PHY) preamble of a multi-user (MU) PHY data unit is generated. The PHY preamble is generated to include formatting information regarding the MU PHY data unit, including a field to be transmitted within a first individual communication channel among a plurality of individual communication channels that collectively span a bandwidth of a composite channel, each individual communication channel including a plurality of basic resource allocation (RA) units that collectively span a bandwidth of the individual communication channel. The field is generated to indicate one or more groupings of basic RA units, wherein at least one of the one or more groupings of basic RA which includes basic RA units of one or more other individual communication channels. A data portion of the MU PHY data unit is generated according to the formatting information in the PHY preamble, and the MU PHY data unit is generated to include the PHY preamble and the data portion.
Abstract translation: 生成多用户（MU）PHY数据单元的物理层（PHY）前导码。 生成PHY前导码以包括关于MU PHY数据单元的格式化信息，包括在共同跨越复合信道的带宽的多个单独通信信道中的第一个体通信信道内要发送的字段，每个单独的通信信道包括 共同跨越各个通信信道的带宽的多个基本资源分配（RA）单元。 生成字段以指示基本RA单元的一个或多个分组，其中基本RA的一个或多个分组中的至少一个包括一个或多个其他单独通信信道的基本RA单元。 根据PHY前导码中的格式化信息生成MU PHY数据单元的数据部分，并且生成MU PHY数据单元以包括PHY前导码和数据部分。
-
公开(公告)号：US09432100B2
公开(公告)日：2016-08-30
申请号：US14018807
申请日：2013-09-05
Applicant: Marvell World Trade Ltd.
Inventor： Yakun Sun , Mingguang Xu
CPC classification number: H04B7/0456 , H04B7/0478
Abstract: A method includes calculating a set of first metrics using channel information and one or more precoders, where each of the first metrics corresponds to a respective set of a plurality of sets of codebook precoders, and selecting, based on the set of first metrics and a first selection criteria, a set of codebook precoders from the plurality of sets of codebook precoders. The method also includes, in response to selecting the set of codebook precoders, calculating a set of second metrics and selecting, based on (i) the set of second metrics and (ii) a second selection criteria, a codebook precoder from the selected set of codebook precoders. Each of the second metrics is calculated using a respective codebook precoder in the selected set of codebook precoders. The method also includes causing the selected codebook precoder to be applied to a signal to be transmitted to a communication device.
Abstract translation: 一种方法包括使用信道信息和一个或多个预编码器来计算一组第一度量，其中第一度量中的每一个对应于多组码本预编码器的相应集合，并且基于该组第一度量和 第一选择标准，来自多组码本预编码器的一组码本预编码器。 该方法还包括响应于选择码本预编码器集合，计算一组第二度量并且基于（i）第二度量集合和（ii）第二选择标准来选择来自所选集合的码本预编码器 的码本预编码器。 使用选定的码本编码器集合中的相应码本预编码器来计算每个第二度量。 该方法还包括使所选择的码本预编码器应用于要发送到通信设备的信号。
-
公开(公告)号：US09420635B2
公开(公告)日：2016-08-16
申请号：US14218876
申请日：2014-03-18
Applicant: MARVELL WORLD TRADE LTD.
Inventor： Qing Zhao , Yakun Sun , Yi-Ling Chao , Leilei Song , Hui-Ling Lou
CPC classification number: H04W24/02 , H04L1/0026 , H04W72/1215 , H04W72/1226 , H04W84/12 , H04W88/06
Abstract: In a method of operating a communication device that includes at least (i) a first network interface configured to operate according to a first communication protocol and (ii) a second network interface configured to operate according to a second communication protocol, the first communication interface is operated according to the first communication protocol. The first communication protocol defines a periodically repeating set of time intervals. One or more time intervals, from the set of time intervals, that meet a selection criteria are determined. The selection criteria is based on level of interference experienced by the first network interface. During the determined one or more time intervals, operation of the first network interface according to the first communication protocol is suspended, and operation of the second network interface according to the second communication protocol is enabled.
Abstract translation: 在一种操作通信设备的方法中，所述通信设备至少包括（i）被配置为根据第一通信协议操作的第一网络接口和（ii）被配置为根据第二通信协议进行操作的第二网络接口，所述第一通信接口 根据第一通信协议进行操作。 第一通信协议定义周期性重复的时间间隔集合。 确定满足选择标准的从一组时间间隔开始的一个或多个时间间隔。 选择标准基于第一网络接口所经历的干扰水平。 在所确定的一个或多个时间间隔期间，暂停根据第一通信协议的第一网络接口的操作，并且启用根据第二通信协议的第二网络接口的操作。
-
-
-
-
-
-
-
-
-
Search Results
140
records
(took 0.031 seconds)
