BRIDGING COAXIAL CABLE NETWORKS
    1.
    发明申请
    BRIDGING COAXIAL CABLE NETWORKS 审中-公开
    桥接同轴电缆网络

    公开(公告)号:WO2007021895B1

    公开(公告)日:2007-08-16

    申请号:PCT/US2006031312

    申请日:2006-08-10

    CPC classification number: H04L12/2801 H04B3/56 H04B2203/5483 H04L12/462

    Abstract: An apparatus includes a first signal interface configured to couple a signal to and from a coaxial cable, a second signal interface configured to couple a signal to and from a power line, and signal coupling circuitry configured to pass a communication signal between the first signal interface and the second signal interface.

    Abstract translation: 一种装置包括:第一信号接口,被配置为将信号耦合到同轴电缆和从同轴电缆耦合;第二信号接口,被配置为耦合去往和来自电力线的信号;以及信号耦合电路,被配置为在第一信号接口 和第二信号接口。

    CONTENTION-FREE ACCESS INTERVALS ON A CSMA NETWORK
    2.
    发明申请
    CONTENTION-FREE ACCESS INTERVALS ON A CSMA NETWORK 审中-公开
    CSMA网络上的无争议访问区间

    公开(公告)号:WO2004038980A3

    公开(公告)日:2004-08-05

    申请号:PCT/US0333442

    申请日:2003-10-21

    CPC classification number: H04L12/407 H04B3/542 H04B2203/5416 H04L12/413

    Abstract: A method of operating in a network in which stations communicate over a shared medium is described. The method provides regularly repeated contention free intervals, CSMA communication during times outside the contention free intervals, and distributed control over the initiation and makeup of the contention free intervals to a plurality of stations so that any of the plurality of stations can independently initiate transmission within the contention free interval.

    Abstract translation: 描述了在其中站通过共享介质进行通信的网络中操作的方法。 该方法提供定期重复的无争用间隔,在无争用间隔之外的时间期间的CSMA通信,以及对无争用间隔的发起和组成的分散控制到多个站,使得多个站中的任何站可以独立地发起在 无竞争区间。

    FRAME CONTROL FOR EFFICIENT MEDIA ACCESS
    3.
    发明申请
    FRAME CONTROL FOR EFFICIENT MEDIA ACCESS 审中-公开
    有效媒体访问的帧控制

    公开(公告)号:WO0213441A3

    公开(公告)日:2002-05-30

    申请号:PCT/US0124449

    申请日:2001-08-03

    CPC classification number: H04L1/0083 H04J3/0638 H04L1/16

    Abstract: A robust Media Access Controller, MAC, scheme for network stations (12) operating in an OFDM transmissions network (10). The MAC scheme uses robustly transmitted frame control information to ensure network synchronization for media access. The frame control information can occur in a frame (80) in a first frame control field (98) before the frame's payload (82) and in a second frame control field (102) after the frame's payload (82), or in a third access priority (144) to convey channel access prioritization for QoS.

    Abstract translation: 用于在OFDM传输网络(10)中操作的网络站(12)的鲁棒介质访问控制器MAC方案。 MAC方案使用鲁棒传输的帧控制信息来确保媒体访问的网络同步。 帧控制信息可以发生在帧的有效载荷(82)之前的第一帧控制字段(98)中的帧中(80),以及帧有效载荷(82)之后的第二帧控制字段(102)中,或者发生在第三帧控制字段 访问优先级(144)来传送QoS的信道接入优先级。

    MULTICAST AND BROADCAST TRANSMISSIONS WITH PARTIAL ARQ
    4.
    发明申请
    MULTICAST AND BROADCAST TRANSMISSIONS WITH PARTIAL ARQ 审中-公开
    部分ARQ的组播和广播传输

    公开(公告)号:WO0213440A3

    公开(公告)日:2002-05-02

    申请号:PCT/US0124244

    申请日:2001-08-02

    Abstract: A partial ARQ protocol for multicast and broadcast transmissions in network devices (12) operating in a shared medium access network (10). To support the partial ARQ, a media access control (MAC) protocol uses robustly transmitted frame delimiters (90) and MAC management frame information (182). In a multicast or broadcast frame (80) with partial ARQ, a destination address field (108) is set to that of a selected proxy device's address, and the address of the intended recipients (of group address of the intended recipients) is placed in a Multicast with Resonse entry 210H in the MAC management frame information (182). The frame (80) also contains a multicast flag (164) set to indicate that the transmission is intended for more than one device and a value in a delimiter type field (132) to indicate that a response is requested. Upon receipt of such a frame, the proxy device specified by the destination address field (108) provides an appropriate response type on behalf of the group. Then on-proxy recipients, detecting the multicast flag setting, know to ignore the DA in the destination address field (108) and instead look to the MAC management entry 210H for actual destination addresses.

    Abstract translation: 用于在共享媒体访问网络(10)中操作的网络设备(12)中的多播和广播传输的部分ARQ协议。 为了支持部分ARQ,媒体访问控制(MAC)协议使用鲁棒传输的帧定界符(90)和MAC管理帧信息(182)。 在具有部分ARQ的多播或广播帧(80)中,目的地地址字段(108)被设置为所选择的代理设备的地址的目的地地址字段(108),并且预期接收者的地址(预期接收者的组地址) 在MAC管理帧信息(182)中具有Resonse条目210H的多播。 帧(80)还包含一个多播标志(164),该多播标志被设置为指示该传输是针对多于一个设备的,并且定界符类型字段(132)中的值指示请求了一个响应。 一旦接收到这样的帧,由目的地址字段(108)指定的代理设备代表该组提供适当的响应类型。 然后,检测到多播标志设置的代理上的接收者知道忽略目的地地址字段(108)中的DA,而是向MAC管理条目210H查找实际的目的地地址。

    SYNCHRONIZATION OF OFDM SIGNALS WITH IMPROVED WINDOWING
    5.
    发明申请
    SYNCHRONIZATION OF OFDM SIGNALS WITH IMPROVED WINDOWING 审中-公开
    具有改进WINDOWING的OFDM信号同步

    公开(公告)号:WO0065710A8

    公开(公告)日:2001-03-08

    申请号:PCT/US0011165

    申请日:2000-04-25

    CPC classification number: H04L27/2662 H04L27/2691

    Abstract: A mechanism (80) for determining phases of a symbol for phase correlation is provided. The mechanism (80) performs a symmetric apodizing window function on a symbol sample of a symbol having a symbol period of T and a time-offset symbol sample offset from the symbol sample by T/2 to produce first windowed values for the symbol sample and second windowed values for the time-offset symbol sample. The mechanism (80) applies a time shift to re-align the time-offset symbol sample with the symbol sample and sums the second windowed values and the corresponding first windowed values. The summed values are then converted to phases. The symmetric apodizing window function is an apodizing window function having the property Wj + W(FFTSize/2+j)= constant, where FFTSize is the size of the FFT sample. The symmetric apodizing window function, such as a Hanning window, may be performed in the time of frequency domain.

    Abstract translation: 提供了一种用于确定用于相位相关的符号的相位的机构(80)。 机构(80)对具有符号周期T的符号的符号样本和从符号样本偏移的时间偏移符号样本进行T / 2的对称变迹窗函数,以产生用于符号样本的第一窗口值, 时间偏移符号样本的第二个窗口值。 机构(80)应用时移以将时间偏移符号样本与符号样本重新对齐,并将第二窗口值和对应的第一窗口值相加。 然后将求和值转换为相位。 对称变迹窗函数是具有属性Wj + W(FFTSize / 2 + j)=常数的变迹窗函数,其中FFTSize是FFT样本的大小。 可以在频域时间执行诸如汉宁窗口的对称变迹窗函数。

    TRANSMISSION LINE DIRECTIONAL AWARENESS
    6.
    发明申请
    TRANSMISSION LINE DIRECTIONAL AWARENESS 审中-公开
    传输线方向性意识

    公开(公告)号:WO2009126811A3

    公开(公告)日:2009-12-30

    申请号:PCT/US2009040078

    申请日:2009-04-09

    Inventor: ZYREN JAMES

    Abstract: Coupling a charging station to a power line segment that is terminated at a first end by a charging terminal includes: sensing a communication signal propagating on the power line and being coupled from multiple taps connected to the power line segment, and determining if the communication signal is propagating on the power line segment in the direction from the first end to a second end of the power line segment or in the direction from the second end to the first end.

    Abstract translation: 将充电站耦合到由充电端子在第一端处终止的电力线段包括:感测在电力线上传播并且从连接到电力线段的多个分接头耦合的通信信号,并且确定通信信号 在电力线段上沿从电力线段的第一端到第二端的方向或从第二端到第一端的方向传播。

    DISTRIBUTED SCHEDULING OF TRANSMISSION RESOURCES
    7.
    发明申请
    DISTRIBUTED SCHEDULING OF TRANSMISSION RESOURCES 审中-公开
    传输资源的分布式调度

    公开(公告)号:WO2008151252A3

    公开(公告)日:2009-02-12

    申请号:PCT/US2008065811

    申请日:2008-06-04

    Abstract: In a network, some data are transmitted between stations during time slots in contention free periods. Selecting the time slots includes collecting timing information at some stations in the network. The timing information indicates the times of existing time slots used by stations whose transmissions can be reliably received by the station collecting the timing information. The timing information is distributed to other stations in the network. A new time slot for transmission between a first and a second station is selected based at least on timing information indicating the times of existing time slots used by stations whose transmissions can be reliably received by at least one of the first and second station. The method is preferably a Broadband Power Line Network (BPLN) which comprises a Head End station (HE) and a plurality of Repeaters (Rl, R2). TDMA schedule information is transmitted in beacons.

    Abstract translation: 在网络中,一些数据在无竞争时段的时隙期间在站之间传输。 选择时隙包括在网络中的某些站收集定时信息。 定时信息表示由收集定时信息的站台可靠地接收发送的站所使用的现有时隙的时间。 定时信息分配给网络中的其他站。 至少基于指示由第一和第二站中的至少一个能够可靠地接收其传输的站所使用的现有时隙的时间的定时信息来选择用于第一和第二站之间的传输的新时隙。 该方法优选地是包括头端站(HE)和多个中继器(R1,R2)的宽带电力线网络(BPLN)。 TDMA调度信息在信标中传输。

    ESTABLISHING SHARED INFORMATION IN A NETWORK
    8.
    发明申请
    ESTABLISHING SHARED INFORMATION IN A NETWORK 审中-公开
    在网络中建立共享信息

    公开(公告)号:WO2007103967A3

    公开(公告)日:2008-10-02

    申请号:PCT/US2007063472

    申请日:2007-03-07

    CPC classification number: H04L9/0838 H04L9/0875

    Abstract: A method for establishing shared information is described. The method includes estimating characteristics of a communication channel between two nodes based on signals transmitted between the nodes. The method also includes transmitting a signal from the first node to the second node, the signal being modulated with a first data sequence according to a first estimated characteristic, and transmitting a signal from the second node to the first node, the signal being modulated with a second data sequence according to a second estimated characteristic. Shared information is formed at each of the first and second nodes based on at least a portion of the first data sequence and at least a portion of the second data sequence.

    Abstract translation: 描述了建立共享信息的方法。 该方法包括基于在节点之间传输的信号来估计两个节点之间的通信信道的特性。 该方法还包括将信号从第一节点发射到第二节点,该信号根据第一估计特性利用第一数据序列进行调制,以及将信号从第二节点发射到第一节点,该信号由 根据第二估计特性的第二数据序列。 基于第一数据序列的至少一部分和第二数据序列的至少一部分,在第一和第二节点中的每一个处形成共享信息。

    METHOD AND PROTOCOL TO SUPPORT CONTENTION-FREE INTERVALS AND QOS IN A CSMA NETWORK
    9.
    发明申请
    METHOD AND PROTOCOL TO SUPPORT CONTENTION-FREE INTERVALS AND QOS IN A CSMA NETWORK 审中-公开
    支持无连续间隔和CSMA网络中的QOS的方法和协议

    公开(公告)号:WO0213442A9

    公开(公告)日:2003-04-03

    申请号:PCT/US0124503

    申请日:2001-08-02

    CPC classification number: H04W74/02

    Abstract: A scheme for supporting both centralized and distributed shared medium access control in a CSMA network (700). A master device (702) exchanges connection control messages with a slave device (704) using contention-oriented access to establish a connection and a session of periodic contention-free intervals. The contention-free intervals (722) alternate with contention-oriented intervals (725) according to the timing parameters specified by the connection control massages. Each of the contention-free intervals (722) is divided into slots (727), the master device (702) transmitting a downstream frame and the slave device (704) transmitting an upstream frame in a following slot if the downstream frame indicates the following: a source address matching that of the master device, a contention-free access at a highest priority and a connection number corresponding to the connection established between the master device and the slave device. Master control is passed from one device to another device during the contention-free interval using a master flag for to indicate which device has master control and a control flag to indicate the direction in which master control is being passed.

    Abstract translation: 一种用于在CSMA网络(700)中支持集中式和分布式共享介质访问控制的方案。 主设备(702)使用面向对方的接入与从设备(704)交换连接控制消息,以建立连接和周期性无竞争间隔的会话。 根据由连接控制按摩指定的定时参数,无竞争间隔(722)与竞争取向间隔(725)交替。 每个无争用间隔(722)被划分为时隙(727),主设备(702)发送下游帧,从设备(704)在下一个时隙中发送上行帧,如果下行帧指示以下 :与主设备相匹配的源地址,最高优先级的无争用接入和与主设备与从设备之间建立的连接相对应的连接号。 主控制在无争用间隔期间通过主标志从一个设备传递到另一个设备,以指示哪个设备具有主控制,以及控制标志来指示主控制正在传递的方向。

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