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    • 5. 发明申请
    • MULTICAST AND BROADCAST TRANSMISSIONS WITH PARTIAL ARQ
    • 部分ARQ的组播和广播传输
    • WO0213440A3
    • 2002-05-02
    • PCT/US0124244
    • 2001-08-02
    • INTELLON CORPYONGE LAWRENCE W IIIKOSTOFF STANLEY J II
    • YONGE LAWRENCE W IIIKOSTOFF STANLEY J II
    • H04L1/00H04L1/16H04L1/18H04L12/18H04L12/40H04L12/42H04L12/407
    • H04L1/0057H04L1/0002H04L1/0025H04L1/1685H04L1/1877H04L1/188H04L12/18H04L12/1868H04L12/1881H04L12/403H04L12/42H04L2001/0093Y02D50/10
    • 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.
    • 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。
    • 6. 发明申请
    • SYNCHRONIZATION OF OFDM SIGNALS WITH IMPROVED WINDOWING
    • 具有改进WINDOWING的OFDM信号同步
    • WO0065710A8
    • 2001-03-08
    • PCT/US0011165
    • 2000-04-25
    • INTELLON CORPYONGE LAWRENCE W III
    • YONGE LAWRENCE W III
    • H04J11/00H04L7/00H04L27/26H03D1/00H04L27/06
    • H04L27/2662H04L27/2691
    • 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.
    • 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。
    • 9. 发明申请
    • ESTABLISHING SHARED INFORMATION IN A NETWORK
    • 在网络中建立共享信息
    • WO2007103967A3
    • 2008-10-02
    • PCT/US2007063472
    • 2007-03-07
    • INTELLON CORPNEWMAN RICHARD EYONGE LAWRENCE W III
    • NEWMAN RICHARD EYONGE LAWRENCE W III
    • H04L9/00
    • H04L9/0838H04L9/0875
    • 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.
    • 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。