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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
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.
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32.发明授权公开(公告)号：US10003373B1
公开(公告)日：2018-06-19
申请号：US14871022
申请日：2015-09-30
Applicant: Marvell International Ltd.
Inventor： Josselin de la Broise , Raja Banerjea , Hao Zhang , Nelson Xu , Ken Yeung
CPC classification number: H04B15/00 , H04B1/40 , H04B1/406 , H04W52/0225 , H04W72/0453 , H04W74/06 , H04W88/06 , Y02D70/00 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/23 , Y02D70/24 , Y02D70/40
Abstract: A network device including first, second and third transceiver modules, which transmit or receive first, second and third data signals. A control module generates a mask signal based on a parameter of the first, second or third transceiver modules. The mask signal includes a direction bit and a first channel that identifies a first frequency. The direction bit indicates a range of frequencies. Transmission on the first frequency and some of the range of frequencies causes desensitization of the second data signal. A hopping module, based on a clock signal, selects a second channel for the third data signal. An output module, based on the mask signal and the second channel, generates an overlap signal indicating whether potential desensitization of the first or third data signal exists. An arbitration module, based on the overlap signal, provides the first or third transceiver module access to a first or second switch module.
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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
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。
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Patent Agency Ranking
公开(公告)号：US09204311B1
公开(公告)日：2015-12-01
申请号：US13933800
申请日：2013-07-02
Applicant: Marvell International Ltd.
Inventor： Raja Banerjea , Paul A. Lambert
IPC: H04W16/14
Abstract: A system including an association module to associate a client station with an access point via a first or a second channel based on a distance of the client station from the access point. The first channel is a television white space channel. The second channel is in 2.4 GHz or 5 GHz band. A channel selection module switches a connection of the client station to the access point between the first and second channels based on the distance of the client station from the access point, a state of the connection of the client station to the access point, and a quality of service requirement of the client station. A routing module routes first and second types of data from the client station to the access point respectively via the first and second channels. A combining module combines data received by the client station via the first and second channels.
Abstract translation: 一种系统，包括关联模块，用于经由第一或第二信道，基于客户端站与接入点的距离将客户端站与接入点相关联。 第一个频道是电视空白频道。 第二个频道是2.4 GHz或5 GHz频段。 信道选择模块基于客户端站与接入点的距离，客户端站与接入点的连接状态以及一个接入点的连接状态，将客户站的连接切换到第一和第二信道之间的接入点 客户站服务质量要求。 路由模块分别经由第一和第二信道将第一和第二类型的数据从客户端路由到接入点。 组合模块通过第一和第二信道组合由客户站接收的数据。
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公开(公告)号：US09161362B1
公开(公告)日：2015-10-13
申请号：US13925596
申请日：2013-06-24
Applicant: MARVELL INTERNATIONAL LTD.
Inventor： Raja Banerjea , Hongyuan Zhang
CPC classification number: H04W72/0473 , H04B7/0697
Abstract: An access point device selects a group of two or more transceivers from a plurality of transceivers for simultaneous transmission of respective data to the access point device. The group of transceivers is selected so that respective power levels of signals received, at the access point device, from any two transceivers in the group of transceivers differ by no more than a predetermined amount. An indication of assignment to the group of transceivers is transmitted to each transceiver in the group of transceivers. The access point device receives the respective data from each transceiver in the group of transceivers simultaneously via a shared wireless communication channel.
Abstract translation: 接入点设备从多个收发器中选择一组两个或多个收发器，用于将相应数据同时发送到接入点设备。 选择收发机组，使得在接入点设备处从收发机组中的任何两个收发器接收的信号的相应功率电平相差不超过预定量。 收发器组中的每个收发器发送对该组收发器的分配的指示。 接入点设备经由共享无线通信信道同时从收发器组中的每个收发机接收相应的数据。
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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
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。
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公开(公告)号：US08917795B1
公开(公告)日：2014-12-23
申请号：US13769134
申请日：2013-02-15
Applicant: Marvell International Ltd.
Inventor： Hongyuan Zhang , Sudhir Srinivasa , Rohit U. Nabar , Raja Banerjea
CPC classification number: H04L27/2627 , H04J3/0697 , H04L27/2626 , H04L27/2657 , H04L27/2675
Abstract: Systems and techniques relating to wireless communications are described. A described system includes circuitry configured to generate, in accordance with a clock signal, a first baseband signal for transmission over a wireless channel, one or more first preamble symbols of the first baseband signal are based on a pre-determined preamble sequence when a first clock frequency is used in the clock signal. The described system includes circuitry configured to generate, in accordance with the clock signal, a second baseband signal for transmission over the wireless channel, one or more second preamble symbols of the second baseband signal are based on the pre-determined preamble sequence, the one or more second preamble symbols have a longer duration than the one or more first preamble symbols when a second clock frequency is used in the clock signal. The second clock frequency is lower than the first clock frequency and is used to extend a wireless communication range of the wireless channel.
Abstract translation: 描述与无线通信相关的系统和技术。 所描述的系统包括经配置以根据时钟信号产生用于通过无线信道传输的第一基带信号的电路，当第一基带信号的第一 在时钟信号中使用时钟频率。 所描述的系统包括被配置为根据时钟信号产生用于通过无线信道传输的第二基带信号的电路，第二基带信号的一个或多个第二前导码符号基于预定的前导码序列，一个 或更多的第二前导码符号在时钟信号中使用第二时钟频率时具有比一个或多个第一前导码符号更长的持续时间。 第二时钟频率低于第一时钟频率，并用于扩展无线信道的无线通信范围。
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公开(公告)号：US20130114548A1
公开(公告)日：2013-05-09
申请号：US13730022
申请日：2012-12-28
Applicant: Marvell International Ltd.
Inventor： Raja Banerjea
IPC: H04W72/12
CPC classification number: H04W72/0413 , H04W16/14 , H04W72/1215 , H04W88/06
Abstract: A coexistent communication system of a first network device includes a remote network radio. The remote network radio has a remote transmission distance, operates based on remote network protocols, and communicates with a base station using a first communication link corresponding to a first frequency band. A local network radio has a local transmission distance and is collocated with the remote network radio. The local network radio operates based on local network protocols that are different than the remote network protocols and communicates with a second network device using a second communication link corresponding to a second frequency band. A control module at least one of schedules communication on the first communication link and the second communication link and adjusts a transmission parameter of one of the remote network radio and the local network radio. Transmission distance of the remote network radio is greater than transmission distance of the local network radio.
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