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1. 发明申请

WO0106706A3 A METHOD AND APPARATUS FOR VERIFYING CONNECTIVITY AMONG NODES IN A COMMUNICATIONS NETWORK 审中-公开
标题翻译：用于在通信网络中验证连接的方法和装置
公开(公告)号：WO0106706A3
公开(公告)日：2001-09-20
申请号：PCT/US0019793
申请日：2000-07-19
申请人： BROADCOM HOMENETWORKING INC , PTASINSKI HENRY , MALLORY TRACY
发明人： PTASINSKI HENRY , MALLORY TRACY
IPC分类号： H04L12/26 , H04L12/24 , H04Q3/00
CPC分类号： H04L43/0811 , H04L43/0817
摘要： A method and apparatus for verifying connectivity between network nodes in a communications network. For each node periodic time intervals are provided. Elapsed periodic time intervals are counted since transmission of a link integrity indication frame, the link integrity indication frame being a frame which, when transmitted by a network node, can be received by all other nodes on the communications network and which contains a source identifier, such as a source address, that uniquely identifies a transmitting node. Frames are received from a sending node and a node state status and a current received frame source address are maintained during each periodic time interval. Upon the expiration of a predetermined elapsed time interval the node state status and a count of the elapsed periodic time intervals since transmission of a link integrity indication frame are determined. A link integrity indication frame is transmitted based upon determining the count of predetermined elapsed time intervals as being greater than a predefined count limit and the node state status as not being indicative of network traffic.
摘要翻译：一种用于验证通信网络中的网络节点之间的连接性的方法和装置。对于每个节点，提供周期性的时间间隔。由于传输链路完整性指示帧，所以经过的周期性时间间隔被计数，所述链路完整性指示帧是当由网络节点发送时可以被通信网络上的所有其他节点接收并且包含源标识符的帧，例如源地址，其唯一地标识发送节点。从发送节点接收帧，并且在每个周期时间间隔期间保持节点状态状态和当前接收帧源地址。在预定经过时间间隔期满之后，确定节点状态状态以及从发送链路完整性指示帧起经过的周期时间间隔的计数。基于将预定经过时间间隔的计数确定为大于预定义的计数限制并且将节点状态状态指示为不表示网络流量来发送链路完整性指示帧。

2. 发明申请

WO0178489A3 FRAME-BASED COMMUNICATION WITH VARIABLE RATE PAYLOAD 审中-公开
标题翻译：具有可变速率载荷的基于帧的通信
公开(公告)号：WO0178489A3
公开(公告)日：2002-05-23
申请号：PCT/US0110882
申请日：2001-04-04
申请人： BROADCOM HOMENETWORKING INC , HOLLOWAY JOHN T , FRANK EDWARD H , OJARD ERIC , TRACHEWSKY JASON ALEXANDER , MALLORY TRACY D , PTASINSKI HENRY S , HAYES RAYMOND , PETERSON KEVIN H , YAMANO LARRY C , CORRY ALAN , PATTIN JAY
发明人： HOLLOWAY JOHN T , FRANK EDWARD H , OJARD ERIC , TRACHEWSKY JASON ALEXANDER , MALLORY TRACY D , PTASINSKI HENRY S , HAYES RAYMOND , PETERSON KEVIN H , YAMANO LARRY C , CORRY ALAN , PATTIN JAY
IPC分类号： H04J3/06 , H04L1/00 , H04L1/08 , H04L1/12 , H04L1/18 , H04L12/413 , H04M11/00 , H04M11/06
CPC分类号： H04L1/0005 , H04L1/0003 , H04L1/0006 , H04L1/0009 , H04L1/0025 , H04L1/0061 , H04L1/0072 , H04L1/08 , H04L1/18 , H04L1/1809 , H04L1/1848 , H04L1/1877 , H04L1/1883 , H04L1/1887 , H04L1/20 , H04L12/40032 , H04L12/4013 , H04L12/40136 , H04L12/40156 , H04L12/40163 , H04L12/403 , H04L12/4035 , H04L12/407 , H04L12/413 , H04L12/417 , H04L2001/0093 , H04L2001/125 , H04M11/00 , H04M11/06 , Y02D50/10
摘要： A transceiver method and signal therefor embodied in a carrier wave for sending information from transmit stations to receive stations over a transmission medium of a frame-based communications network. The information is sent in transmit frames having a frame format comprising a fixed rate header, followed by a variable rate payload, followed by a fixed rate trailer. The fixed rate header includes a preamble. The preamble has a repetition of four symbol sequences for facilitating power estimation, gain control, baud frequency offset estimation, equalizer training, carrier sensing and collision detection. The preamble also includes a frame control field. The frame control field has scrambler control information for frame scrambling initialization, a priority field to determine the absolute priority a transmit frame will have when determining access to the transmission medium, a payload encoding field which determines constellation encoding of payload bits in the variable rate payload, and a header check sequence for providing a cyclic redundancy check. The variable rate payload is transmitted pursuant to dynamic adjustable frame encoding parameters for improving transmission performance for a transmit frame being transmitted from a transmitting station to a receiving station. The header also includes a destination address field, a source address field and an ethertype field.
摘要翻译：一种用于在基于帧的通信网络的传输介质上从发射站向接收站发送信息的载波中的收发器方法及其信号。信息以具有包括固定速率报头的帧格式的发送帧发送，随后是可变速率有效载荷，随后是固定速率预告。固定速率报头包括前导码。前导码具有用于促进功率估计，增益控制，波特率频率偏移估计，均衡器训练，载波侦听和冲突检测的四个符号序列的重复。前导码还包括帧控制字段。帧控制字段具有用于帧加扰初始化的加扰器控制信息，确定发送帧在确定对传输介质的访问时将具有的绝对优先级的优先级字段，确定可变速率有效载荷中的有效载荷比特的星座编码的有效载荷编码字段以及用于提供循环冗余校验的报头检查序列。根据动态可调节帧编码参数发送可变速率有效载荷，以改善从发射站发送到接收站的发射帧的传输性能。报头还包括目的地址字段，源地址字段和以太类型字段。

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