公开(公告)号：US07620870B2

公开(公告)日：2009-11-17

申请号：US11287093

申请日：2005-11-22

申请人： Udayakumar Srinivasan ,  Syam Sundar V. Appala

发明人： Udayakumar Srinivasan ,  Syam Sundar V. Appala

IPC分类号： H03M7/30 ,  H04L1/12

CPC分类号： H04L47/10 ,  H04L47/38

摘要： A data compression method and system is disclosed. In one embodiment, the data compression method includes receiving a data packet. Also, the method includes compressing the data packet using a confirmed compression history, wherein the confirmed compression history includes previously acknowledged data packets. Further, the method includes sending a compressed data packet to a downstream device. Moreover, the method includes detecting a delivery acknowledgement associated with the compressed data packet. Continuing, the method includes updating the confirmed compression history by incorporating the data packet information into the confirmed compression history based upon receipt of the delivery acknowledgement.

摘要翻译： 公开了一种数据压缩方法和系统。 在一个实施例中，数据压缩方法包括接收数据分组。 此外，该方法包括使用确认的压缩历史压缩数据分组，其中所确认的压缩历史包括先前确认的数据分组。 此外，该方法包括向下游设备发送压缩数据分组。 此外，该方法包括检测与压缩数据分组相关联的递送确认。 继续地，该方法包括通过将数据分组信息并入确认的压缩历史中，基于接收到传送确认来更新确认的压缩历史。

公开(公告)号：US07447235B2

公开(公告)日：2008-11-04

申请号：US10962373

申请日：2004-10-08

申请人： Michael Luby ,  Matt Doucleff ,  Avi Wigderson ,  Soren Lassen

发明人： Michael Luby ,  Matt Doucleff ,  Avi Wigderson ,  Soren Lassen

IPC分类号： H04L1/12

CPC分类号： H04L1/1819 ,  H03M13/3761 ,  H03M13/6547 ,  H04L1/1887 ,  H04L69/16 ,  H04L69/163

摘要： In a transport system, data is reliably transported from a sender to a receiver by organizing the data to be transported into data blocks, wherein each data block comprises a plurality of encoding units, transmitting encoding units of a first data block from the sender to the receiver, and detecting, at the sender, acknowledgments of receipt of encoding units by the receiver. At the sender, a probability that the receiver received sufficient encoding units of the first data block to recover the first data block at the receiver is detected and the probability is tested against a threshold probability to determine whether a predetermined test is met. Following the step of testing and prior to the sender receiving confirmation of recovery of the first data block at the receiver, when the predetermined test is met, transmitting encoding units of a second data block from the sender. If an indication of failure to recover the first data block is received at the sender, sending further encoding units for the first data block from the sender to the receiver. In some embodiments, the predetermined test is a comparison of the probability against the threshold probability and the predetermined test is met when the probability is greater than the threshold probability.

摘要翻译： 在传送系统中，通过将要传送的数据组织成数据块，数据可靠地从发送者传送到接收方，其中每个数据块包括多个编码单元，将第一数据块的编码单元从发送方传送到 并且在发送器处检测由接收器接收编码单元的确认。 在发送器处，检测到接收器接收到第一数据块的足够的编码单元以恢复接收器处的第一数据块的概率，并且针对阈值概率测试概率以确定是否满足预定的测试。 在测试步骤之后，并且在发送方接收到在接收机处恢复第一数据块的确认之前，当满足预定测试时，从发送方发送第二数据块的编码单元。 如果在发送方收到恢复第一数据块的指示，则从发送方向接收方发送第一数据块的另外的编码单元。 在一些实施例中，预定测试是当概率大于阈值概率时，对阈值概率的概率和满足预定测试的概率的比较。

公开(公告)号：US07379444B2

公开(公告)日：2008-05-27

申请号：US10351823

申请日：2003-01-27

申请人： Robert S. Blackmore ,  Amy X. Chen ,  Scott D. Epter ,  Chulho Kim ,  Rajeev Sivaram

发明人： Robert S. Blackmore ,  Amy X. Chen ,  Scott D. Epter ,  Chulho Kim ,  Rajeev Sivaram

IPC分类号： H04L1/12 ,  H04L12/26

CPC分类号： H04L29/06 ,  H04L67/10 ,  H04L69/329 ,  H04L69/40

摘要： Epoch numbers are maintained in a pair wise fashion at a plurality of communication endpoints to provide communication consistency and recovery from a range of failure conditions including total or partial node failure and subsequent recovery. Once an epoch state inconsistency is recognized, negotiation procedures provide an effective mechanism to reestablish valid communication links without the need to employ global variables which inherently possess greater transmission and overhead requirements needed to maintain communications. Renegotiation of recognizably valid epoch numbers occurs on a pair wise basis.

摘要翻译： 在多个通信端点以成对方式保持时代号，以从包括全部或部分节点故障和随后恢复的一系列故障条件提供通信一致性和恢复。 一旦识别出时代状态不一致，谈判程序就提供了有效的机制来重新建立有效的通信链路，而不需要使用固有地拥有维持通信所需的更大的传输和开销要求的全局变量。 可识别的有效时代数的重新协商是以双重依据为基础进行的。

公开(公告)号：US06931569B2

公开(公告)日：2005-08-16

申请号：US09836488

申请日：2001-04-17

申请人： Mo-Han Fong ,  Leo L. Strawczynski ,  Geng Wu ,  Wen Tong

发明人： Mo-Han Fong ,  Leo L. Strawczynski ,  Geng Wu ,  Wen Tong

IPC分类号： H04L1/00 ,  H04L1/12 ,  H04L1/16 ,  H04L1/18 ,  G06F11/00

CPC分类号： H04L1/188 ,  H04L1/16 ,  H04L1/1671 ,  H04L1/1803 ,  H04L1/1809 ,  H04L1/1812 ,  H04L1/1848 ,  H04L1/1861 ,  H04L1/1877 ,  H04L2001/125 ,  Y10S370/913

摘要： A base station, mobile station, and/or other terminal device includes physical layer (layer 1) protocol and link layer (layer 2) protocol that both include automatic retransmission request (ARQ) operations. The physical layer and link layer include enhancements that interact with one another to cause the link layer to inhibit ARQ operations while error recovery operations are pending at the physical layer. A transmitter packages link layer packet data units into physical layer frames and transmits the physical layer frames. A receiver responds to indicate either successful or unsuccessful transmission. The transmitting physical layer waits for the response and initiates error recovery operations when required. The receiving link layer, when it detects lost data packets, inhibits its ARQ operations to allow physical layer error recovery operations to complete.

摘要翻译： 基站，移动站和/或其他终端设备包括物理层（层1）协议和链路层（层2）协议，它们都包括自动重传请求（ARQ）操作。 物理层和链路层包括彼此交互的增强功能，以使得链路层能够在物理层处理错误恢复操作时阻止ARQ操作。 发射机将链路层分组数据单元封装成物理层帧并传输物理层帧。 接收机响应以指示传输成功或不成功。 发送物理层等待响应，并在需要时启动错误恢复操作。 接收链路层当检测到丢失的数据包时，禁止其ARQ操作，以允许物理层错误恢复操作完成。

公开(公告)号：US20050169405A1

公开(公告)日：2005-08-04

申请号：US10770028

申请日：2004-02-02

申请人： Francis Dominique ,  Srinivas Kadaba ,  Hongwei Kong

发明人： Francis Dominique ,  Srinivas Kadaba ,  Hongwei Kong

IPC分类号： H04B7/26 ,  H04L1/12 ,  H04L1/16 ,  H04L1/18 ,  H04L25/06 ,  H04L27/06

CPC分类号： H04L1/1607 ,  H04L2001/125

摘要： A decision as to whether a mobile terminal has transmitted an ACK, a NACK or a NULL from a received signal at a base station is made by successively eliminating one of the three possible transmitted symbols by sequentially applying decision rules that maximize network throughput by minimizing the sum of the weighted costs of making a decision based on the magnitude of the received signal.

摘要翻译： 关于移动终端是否已经从基站的接收信号发送了ACK，NACK或NULL的决定是通过连续地消除三个可能的传输符号中的一个来顺序地应用使最大化网络吞吐量的决策规则， 根据接收到的信号的幅度作出决定的加权成本的总和。

公开(公告)号：US06907460B2

公开(公告)日：2005-06-14

申请号：US09822441

申请日：2001-03-30

申请人： Dmitri Loguinov ,  Hayder Radha

发明人： Dmitri Loguinov ,  Hayder Radha

IPC分类号： H04L1/16 ,  H04L1/00 ,  H04L1/12 ,  H04L1/18 ,  H04L12/56 ,  H04L29/02 ,  H04L29/06 ,  G06F15/173

CPC分类号： H04L47/10 ,  H04L1/0001 ,  H04L1/0021 ,  H04L1/1809 ,  H04L1/1848 ,  H04L1/1854 ,  H04L29/06 ,  H04L29/06027 ,  H04L47/283 ,  H04L2001/125

摘要： Disclosed is a system and method for estimating retransmission timeout (RTO) in a real-time streaming applications over the Internet between a server and a client. Accordingly, the present invention employs retransmission timeout (RTO) in NACK-based applications to support multiple retransmission attempts per lost packet, wherein the RTO is estimated by an actual around-trip delay (RTT) and a smooth inter-packet delay variance.

摘要翻译： 公开了一种用于在服务器和客户端之间的因特网上的实时流应用中估计重传超时（RTO）的系统和方法。 因此，本发明在基于NACK的应用中使用重传超时（RTO）来支持每个丢失分组的多个重传尝试，其中通过实际的周边延迟（RTT）和平滑的分组间延迟方差估计RTO。

公开(公告)号：US06882634B2

公开(公告)日：2005-04-19

申请号：US09825756

申请日：2001-04-04

申请人： Amit G. Bagchi ,  Eric Ojard ,  Henry S. Ptasinski ,  Jason Alexander Trachewsky

发明人： Amit G. Bagchi ,  Eric Ojard ,  Henry S. Ptasinski ,  Jason Alexander Trachewsky

IPC分类号： H04J3/06 ,  H04L1/00 ,  H04L1/08 ,  H04L1/12 ,  H04L1/18 ,  H04L12/413 ,  H04M11/00 ,  H04M11/06 ,  H04Q7/24

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 method for selecting frame encoding parameters to improve transmission performance for a transmitting frame being transmitted from a transmitting station to a receiving station over a transmission medium of a frame-based communications network, the transmitting frame having a header segment and a payload segment, the header segment being transmitted using a fixed set of encoding parameters such that the header segment can be received and decoded by all stations on the network, the payload segment being transmitted using a variable set of payload encoding parameters, the transmitting station sending the transmitting frame using one set of the variable set of payload encoding parameters at a time. The receiving station receives and decodes the header and payload segments of each transmitting frame. The decoding includes computing frame statistics. A plurality of sets are selected from the variable set of payload encoding parameters to form a possible set of payload encoding parameters. For each set of payload encoding parameters in the possible set of payload encoding parameters, an estimate of network performance characteristics expected if the transmitting station were to transmit the transmitting frame using that set of payload encoding parameters is generated based upon the frame statistics. A set of payload encoding parameters having optimized network performance characteristics is selected based upon estimates of expected network performance for each set of payload encoding parameters in the possible set of payload encoding parameters. The frame statistics include a slicer maximum squared error for the header segment and a slicer maximum squared error for the payload segment.

摘要翻译： 一种用于选择帧编码参数以改善通过基于帧的通信网络的传输介质从发射站发送到接收站的传输帧的传输性能的方法，所述传输帧具有报头段和有效载荷段， 标题段使用固定的编码参数集合传送，使得标题段可以由网络上的所有站接收和解码，所述有效载荷段使用可变的有效载荷编码参数集来发送，所述发送站使用 一组一组有效载荷编码参数的变量集合。 接收站接收并解码每个发送帧的报头和有效载荷段。 解码包括计算帧统计。 从有效载荷编码参数的可变集中选择多个集合以形成可能的一组有效载荷编码参数。 对于可能的有效载荷编码参数集合中的每组有效载荷编码参数，基于帧统计信息来生成如果传输站使用该组有效载荷编码参数发射发送帧的预期的网络性能特性的估计。 基于可能的有效载荷编码参数集合中的每组有效载荷编码参数的预期网络性能的估计来选择具有优化的网络性能特征的一组有效载荷编码参数。 帧统计信息包括标题段的限幅器最大平方误差和有效载荷段的限幅器最大平方误差。

公开(公告)号：US06877043B2

公开(公告)日：2005-04-05

申请号：US09825689

申请日：2001-04-04

申请人： Tracy D. Mallory ,  Matthew James Fischer

发明人： Tracy D. Mallory ,  Matthew James Fischer

IPC分类号： H04J3/06 ,  H04L1/00 ,  H04L1/08 ,  H04L1/12 ,  H04L1/18 ,  H04L12/413 ,  H04M11/00 ,  H04M11/06 ,  G06F15/16

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 method for distributing sets of collision resolution parameters to be used for resolution of network access contention events among nodes of a non-centralized media access control shared medium network. A set of collision resolution parameters is provided which includes a sequence of fixed numbers for resolving a single network access contention event. A single collision signal slot master node is identified when one or more candidate collision signal slot master nodes exist. Collision signal slot request messages are sent from client nodes addressed to all network nodes. Collision signal slot assignment messages are sent from the master node to the client nodes. A collision resolution parameter set to be employed by that given client node is obtained at a given client node from within a received collision signal slot assignment message. Collision signal slot acknowledgment messages are sent from client nodes addressed to all network nodes. Collision signal slot drop messages are sent from client nodes addressed to all network nodes.

摘要翻译： 一种用于分配用于非集中式媒体访问控制共享介质网络的节点之间的网络访问争用事件的分辨率的冲突解决参数集合的方法。 提供了一组冲突解决参数，其包括用于解决单个网络访问争用事件的固定数字序列。 当存在一个或多个候选冲突信号时隙主节点时，识别单个冲突信号时隙主节点。 从定址到所有网络节点的客户端节点发送冲突信号时隙请求消息。 冲突信号时隙分配消息从主节点发送到客户端节点。 在给定的客户端节点从接收到的冲突信号时隙分配消息中获得由该给定客户端节点采用的冲突解决参数集。 从定址到所有网络节点的客户端节点发送冲突信号时隙确认消息。 从定址到所有网络节点的客户端节点发送冲突信号时隙丢弃消息。

公开(公告)号：US06876641B2

公开(公告)日：2005-04-05

申请号：US09834417

申请日：2001-04-12

申请人： Brian Banister

发明人： Brian Banister

IPC分类号： H04L1/00 ,  H04L1/12 ,  H04J13/00

CPC分类号： H04L1/0065 ,  H04L1/0025 ,  H04L1/0026 ,  H04L1/0041 ,  H04L1/007 ,  H04L1/0071 ,  H04L1/0073 ,  H04L1/16 ,  H04L2001/125

摘要： A single physical channel carries “fast feedback” information in such a way that each type of data is on a physical sub-channel. The sub-channels are not “logical” channels in that they cannot be separated by logical functions alone because some knowledge of the modulation mechanisms is required. Each sub-channel is independently channel coded (this is outer channel coding if an inner code is applied). The resulting code symbols from all sub-channels are then merged into one set of symbols. These code symbols can then optionally be concatenation interleaved and inner channel coded, if the performance enhancement is desired and the complexity is acceptable. The result is then extended by code symbol repetition to provide a total number of symbols greater than or equal to one of the possible quantities of symbols per frame supported by the physical channel, and then decimated (symbols deleted) to provide a number of symbols equal to one of the allowable quantities of symbols per frame. The result is then interleaved, and transmitted over the physical channel.

摘要翻译： 单个物理信道以每种类型的数据在物理子信道上的方式携带“快速反馈”信息。 子通道不是“逻辑”通道，因为它们不能由逻辑功能单独分离，因为需要调制机制的一些知识。 每个子信道是独立的信道编码（如果应用了内部代码，则这是外部信道编码）。 然后将所有子通道的结果代码符号合并成一组符号。 然后，如果期望性能增强并且复杂度是可接受的，则这些代码符号然后可选地被交错和内部信道编码。 然后，结果通过代码符号重复进行扩展，以提供大于或等于物理信道支持的每帧可能的符号量之一的符号的总数，然后抽取（符号被删除）以提供多个符号相等 到每帧允许的符号数量之一。 然后将结果交错，并通过物理信道传输。

公开(公告)号：US20050066255A1

公开(公告)日：2005-03-24

申请号：US10710418

申请日：2004-07-09

申请人： Sam Shiaw-Shiang Jiang

发明人： Sam Shiaw-Shiang Jiang

IPC分类号： H04L29/10 ,  H04L1/12 ,  H04L1/16 ,  H04L1/18 ,  H04L12/02 ,  H04L12/26 ,  H04L29/06 ,  H03M13/00 ,  H04L12/28 ,  H04L12/56

CPC分类号： H04L1/1685 ,  H04L1/1628 ,  H04L1/1809 ,  H04L1/1848 ,  H04L1/1851 ,  H04L2001/125

摘要： A method to detect a lost status report determines that a second status report is required when an AMD PDU not negatively acknowledged in the first status report, an AMD PDU with a polling bit set, or the last negatively acknowledged AMD PDU is received after the expiry of a roundtrip timer and before all the negatively acknowledged AMD PDUs in the first status report are received. The method provides a deterministic way of detecting a lost status report, resulting in improved transmission throughput in a wireless communications system.

摘要翻译： 检测丢失状态报告的方法确定当在第一状态报告中未被否定确认的AMD PDU，具有轮询位的AMD PDU或最后的否定确认的AMD PDU在到期后被接收时，需要第二状态报告 的往返定时器，并且在第一状态报告中的所有负值确认的AMD PDU之前被接收。 该方法提供检测丢失状态报告的确定性方式，导致无线通信系统中的传输吞吐量得到改善。