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    • 51. 发明申请
    • FREQUENCY DOMAIN DUPLICATION IN A LONG-RANGE WIRELESS LOCAL AREA NETWORK
    • 长距离无线局域网频域重用
    • WO2013177384A1
    • 2013-11-28
    • PCT/US2013/042403
    • 2013-05-23
    • MARVELL WORLD TRADE LTD.ZHANG, HongyuanLIU, Yong
    • ZHANG, HongyuanLIU, Yong
    • H04L5/00H04L27/26
    • H04L5/001H04L5/0044H04L27/2602H04L27/2613H04L27/2621H04W72/04H04W72/048H04W84/12
    • A method for generating OFDM signals is implemented in a device operating according to a communication protocol. The protocol defines non-duplicate mode data units corresponding to single component channels of a BSS channel, and non-duplicate mode data units corresponding to sets of adjacent component channels. Non-duplicate mode data units corresponding to a set of component channels have more lower-edge and/or upper-edge guard tones than non-duplicate mode data units corresponding to single component channels. The method includes determining that a duplicate mode will be utilized for an OFDM transmission in the set of component channels and, in response, generating a duplicate mode data unit. The duplicate mode data unit has fewer lower- edge and/or upper-edge guard tones than a non-duplicate mode data unit corresponding to a set of component channels, and includes one duplicate of the non-duplicate mode data unit corresponding to the single component channel for each adjacent component channel.
    • 在根据通信协议操作的设备中实现用于产生OFDM信号的方法。 该协议定义对应于BSS信道的单个分量信道的非重复模式数据单元,以及对应于相邻组件信道集合的非重复模式数据单元。 对应于一组分量信道的非复制模式数据单元具有比对应于单个分量信道的非复制模式数据单元更多的下边缘和/或上边缘保护音调。 该方法包括确定将在组分信道集合中的OFDM传输中使用重复模式,并且响应于生成复制模式数据单元。 复制模式数据单元具有比对应于一组分量信道的非复制模式数据单元更少的下边缘和/或上边缘保护音调,并且包括与单个对应的非重复模式数据单元的一个副本 每个相邻分量通道的分量通道。
    • 53. 发明申请
    • METHOD AND APPARATUS FOR SCANNING MULTIPLE CHANNELS IN A WIRELESS NETWORK
    • 在无线网络中扫描多个信道的方法和设备
    • WO2013162917A2
    • 2013-10-31
    • PCT/US2013/036315
    • 2013-04-12
    • MARVELL WORLD TRADE LTD.LIU, YongBANERJEA, Raja
    • LIU, YongBANERJEA, Raja
    • H04W48/16
    • H04W48/16H04W8/005H04W24/10H04W88/06
    • A client station including a transceiver module, a scanning module, and an association module. The transceiver module is configured to transmit and receive data via a frequency band, where the frequency band includes a plurality of channels. The scanning module is configured to simultaneously scan multiple channels of the frequency band at the same time instead of scanning the plurality of channels of the frequency band one channel at a time, and to determine whether one or more access points are available for association in one or more of the multiple channels. The association module is configured to, in response to the scanning module determining that one or more access points are available for association, determine whether to associate with one of the one or more access points determined to be available for association.
    • 客户端站包括收发器模块,扫描模块和关联模块。 收发器模块被配置为经由频带发送和接收数据,其中频带包括多个信道。 扫描模块被配置为同时扫描频带的多个频道,而不是一次扫描一个频道的频带的多个频道,并且确定一个或多个接入点是否可用于在一个频道中关联 或更多的多个通道。 关联模块被配置为响应于扫描模块确定一个或多个接入点可用于关联,确定是否与被确定为可用于关联的一个或多个接入点中的一个关联。
    • 55. 发明申请
    • LOW BANDWIDTH PHY TRANSMISSION IN A WIDER BANDWIDTH
    • 宽带宽带宽中的低带宽PHY传输
    • WO2013123395A1
    • 2013-08-22
    • PCT/US2013/026438
    • 2013-02-15
    • MARVELL WORD TRADE LTD.ZHANG, HongyuanLIU, YongBANERJEA, Raja
    • ZHANG, HongyuanLIU, YongBANERJEA, Raja
    • H04L5/00
    • H04W16/14H04L5/001H04L5/0023H04L5/0048H04L5/0064H04L27/2627H04L27/2628
    • A method for generating signals to be transmitted within a BSS channel, where a set of component channels is collectively coextensive with the BSS channel, includes determining that a first duplicate, in frequency, of a low bandwidth mode data unit will be located at an edge of the BSS channel. Each duplicate includes OFDM tones and has a bandwidth less than the narrowest channel of the component channels. The OFDM tones in each duplicate include one or more data tones, one or more pilot tones, and one or more guard tones. The method also includes generating a transmission signal comprising the duplicates, at least in part by scaling down at least one data tone, and/or zeroing out at least one data tone, of the first duplicate in response to determining that the first duplicate will be located at an edge of the BSS channel.
    • 一种用于产生要在BSS信道内发送的信号的方法,其中一组分量信道与BSS信道共同共同扩展,包括确定低频模式数据单元的频率中的第一副本将位于边缘 的BSS信道。 每个副本包括OFDM音调,并且具有小于组件通道最窄通道的带宽。 每个副本中的OFDM音调包括一个或多个数据音调,一个或多个导频音调以及一个或多个保护音调。 该方法还包括响应于确定第一副本将是第一副本,至少部分地通过缩小第一副本的至少一个数据音调和/或归零第一副本的至少一个数据音调来生成包括重复的传输信号 位于BSS通道的边缘。
    • 56. 发明申请
    • WIRELESS COMMUNICATIONS WITH PRIMARY AND SECONDARY ACCESS CATEGORIES
    • 无线通信与主要和次要访问类别
    • WO2012026990A1
    • 2012-03-01
    • PCT/US2011/024403
    • 2011-02-10
    • MARVELL WORLD TRADE LTD.LIU, YongBANERJEA, RajaRAMAMURTHY, Harish
    • LIU, YongBANERJEA, RajaRAMAMURTHY, Harish
    • H04B7/26H04W74/00H04W28/02
    • H04W72/10H04W74/002H04W74/02H04W74/08H04W84/02H04W84/12
    • Systems and techniques relating to wireless communications are described. A described technique includes determining a primary access category for a transmission opportunity (TXOP) to transmit data to a primary wireless communication device, the primary access category being an access category included in a group of access categories that are associated with different transmission priorities, respectively; retrieving one or more primary data units belonging to the primary access category to transmit to the primary wireless communication device during the TXOP; determining a secondary access category for the TXOP, the secondary access category being an access category included in the group of access categories, the secondary access category having a transmission priority different from the primary access category; retrieving one or more secondary data units belonging to the secondary access category to transmit to a secondary wireless communication device during the TXOP; and transmitting spatially steered streams during the TXOP, the steered streams embodying the one or more primary data units and the one or more secondary data units.
    • 描述与无线通信相关的系统和技术。 所描述的技术包括确定用于传输数据到主要无线通信设备的传输机会(TXOP)的主要访问类别,主要访问类别是包括在与不同传输优先级相关联的一组访问类别中的访问类别 ; 检索属于所述主访问类别的一个或多个主数据单元以在所述TXOP期间发送到所述主无线通信设备; 确定所述TXOP的辅助访问类别,所述辅助访问类别是包括在所述访问类别组中的访问类别,所述次要访问类别具有不同于所述主访问类别的传输优先级; 检索属于所述次要访问类别的一个或多个次要数据单元以在所述TXOP期间发送到辅助无线通信设备; 以及在所述TXOP期间发送空间转向流,所述转向流包含所述一个或多个主要数据单元和所述一个或多个次要数据单元。
    • 58. 发明申请
    • POWER SAVING IN A COMMUNICATION DEVICE
    • 在通信设备中节电
    • WO2011056790A1
    • 2011-05-12
    • PCT/US2010/055118
    • 2010-11-02
    • MARVELL WORLD TRADE LTD.LIU, YongZHANG, Hongyuan
    • LIU, YongZHANG, Hongyuan
    • H04W52/02
    • H04W52/58H04W52/0219H04W52/0222H04W52/0229H04W74/0808H04W74/0816H04W84/12H04W88/08Y02D70/1262Y02D70/142
    • A method in a communication device for processing a received data unit includes determining whether the communication device is an intended receiver based on the received data unit, determining whether the received data unit includes an exclusive use indication, where the exclusive use indication indicates that a plurality of data units are transmitted only to the at least one intended receiver during a time period, where each of the plurality of data units has at least a respective physical layer (PHY) preamble, and determining a time interval during which the communication device need not listen for incoming data units using (i) a result of determining whether the received data unit includes an exclusive use indication and (ii) a result of determining whether the communication device is an intended receiver.
    • 用于处理接收到的数据单元的通信设备中的方法包括:基于接收的数据单元确定通信设备是否是预期的接收机,确定接收到的数据单元是否包括专用指示,其中专用指示指示多个 在多个数据单元中的每个数据单元至少具有相应的物理层(PHY)前导码的时间周期期间仅将数据单元传输到至少一个预期的接收机,并且确定通信设备不需要的时间间隔 使用(i)确定接收到的数据单元是否包括专用指示的结果来监听输入数据单元,以及(ii)确定通信设备是否是预期接收机的结果。