公开(公告)号：US20090158120A1

公开(公告)日：2009-06-18

申请号：US12241371

申请日：2008-09-30

Applicant: Ravi Palanki ,  Naga Bhushan

Inventor： Ravi Palanki ,  Naga Bhushan

IPC: H03M13/05 ,  G06F11/07

CPC classification number: H04L1/0057 ,  H04L1/007 ,  H04L1/0086

Abstract: A hierarchical cyclic redundancy check (CRC) is provided that enables CRC appending and detection. A message that includes a first message portion and a second message portion is transmitted to two or more receivers. The receivers are not aware of the first message portion. One of the receivers can be aware of the second message portion of the message. Each portion of the message can be encoded with a CRC in order to provide protection. The receiver that is aware of the second message portion is provided a higher level of cyclic redundancy check (CRC) protection than the receivers that are not aware of the second message portions.

Abstract translation: 提供了能够进行CRC附加和检测的分级循环冗余校验（CRC）。 包括第一消息部分和第二消息部分的消息被发送到两个或更多个接收器。 接收者不知道第一个消息部分。 其中一个接收器可以知道消息的第二个消息部分。 消息的每个部分可以用CRC编码，以便提供保护。 提供了与不知道第二消息部分的接收器相比，知道第二消息部分的接收机提供了更高级别的循环冗余校验（CRC）保护。

公开(公告)号：US20080313520A1

公开(公告)日：2008-12-18

申请号：US12140093

申请日：2008-06-16

Applicant: Toru Suneya

Inventor： Toru Suneya

IPC: H04L1/08 ,  G06F11/00

CPC classification number: H04L1/0086 ,  H04L1/0021 ,  H04L1/1825 ,  H04L1/1887 ,  H04N21/44209 ,  H04N21/4425 ,  H04N21/6375 ,  H04N21/6377 ,  H04N21/6437 ,  H04N21/658

Abstract: A data-transmission device dividing video data into packets and transmitting the packet to a data-reception device requesting the video data includes a unit generating transmission packets based on the video data, a unit setting importance for each of the generated packets, a unit storing information about the set importance in a first storage unit, a communication unit transmitting the generated packet to the data-reception device and receiving a packet-retransmission request from the data-reception device, a unit saving the transmitted packet in a second storage unit, a unit calculating the packet-loss rate based on the received packet-retransmission request, a unit determining a packet retransmitted to the data-reception device based on the calculated packet-loss rate and the packet importance, and a retransmission unit reading the determined retransmission packet from the second storage unit and transmitting the retransmission packet to the data-reception device.

Abstract translation: 将视频数据分组并将数据包发送到请求视频数据的数据接收装置的数据传输装置包括基于视频数据产生传输分组的单元，对于每个生成的分组的单位设置重要性，存储 关于在第一存储单元中设置重要性的信息，通信单元将生成的分组发送到数据接收装置并从数据接收装置接收分组重传请求，在第二存储单元中保存所发送的分组的单元， 基于接收到的分组重传请求计算分组丢失率的单元，基于所计算的分组丢失率和分组重要性来确定重发到所述数据接收设备的分组的单元，以及读取所确定的重传的重传单元 分组，并将重发分组发送到数据接收装置。

公开(公告)号：US20080089427A1

公开(公告)日：2008-04-17

申请号：US11835302

申请日：2007-08-07

Applicant: Pengfei Xia ,  Chiu Ngo

Inventor： Pengfei Xia ,  Chiu Ngo

IPC: H04N7/24

CPC classification number: H04L1/0041 ,  H03M13/152 ,  H03M13/256 ,  H03M13/2721 ,  H03M13/2909 ,  H03M13/2921 ,  H03M13/2936 ,  H03M13/356 ,  H04L1/006 ,  H04L1/007 ,  H04L1/0071 ,  H04L1/0086 ,  H04L27/34 ,  H04N21/43615

Abstract: A system and method for processing uncompressed high definition video data to be transmitted over a wireless medium is disclosed. In one embodiment, the system includes i) a plurality of convolutional encoders configured to input a plurality of video data streams and output a plurality of encoded data streams, respectively, wherein each data stream includes a plurality of data bits, ii) a group multiplexer configured to multiplex the plurality of encoded data streams into a multiplexed data stream, wherein the group multiplexer is further configured to multiplex a plurality of data bits together at one time and iii) a circulant bit interleaver configured to receive an m×n data stream block having n columns and m rows or convert the multiplexed data stream to an m×n data stream block, wherein the m×n data stream block comprises m×n data bits, and wherein the bit interleaver is further configured to interleave the received data bits diagonally and in a circulant manner with respect to the m×n block. The circulant bit interleaver interleaves the multiplexed data bits such that all data bits in one QAM symbol come from different convolutional encoders.

Abstract translation: 公开了一种用于处理通过无线介质发送的未压缩高分辨率视频数据的系统和方法。 在一个实施例中，系统包括i）多个卷积编码器，其被配置为分别输入多个视频数据流并输出多个编码数据流，其中每个数据流包括多个数据位，ii）组多路复用器 被配置为将所述多个编码数据流多路复用为多路复用数据流，其中所述组多路复用器还被配置为一次将多个数据位复用在一起;以及iii）循环比特交织器，被配置为接收具有n个的m×n数据流块 列和m行，或将多路复用的数据流转换为m×n数据流块，其中m×n数据流块包括m×n个数据位，并且其中所述位交织器进一步被配置为沿着对角线和循环方式交错接收的数据位， 到mxn块。 循环比特交织器交织复用的数据比特，使得一个QAM符号中的所有数据比特来自不同的卷积编码器。

公开(公告)号：US20080074996A1

公开(公告)日：2008-03-27

申请号：US11739316

申请日：2007-04-24

Applicant: Serge Francois Fourcand

Inventor： Serge Francois Fourcand

IPC: H04L1/02

CPC classification number: H04L1/0086 ,  H04L2001/0096

Abstract: A network component comprising a processor configured to implement a method comprising communicating a data stream to a destination over a plurality of links, the data stream comprising a high priority data and a plurality of low priority data, wherein the high priority data is duplicated over at least two of the links, and wherein the low priority data is distributed over at least some of the links. Also disclosed is a method comprising receiving a plurality of data streams, each data stream comprising a high priority data and a low priority data, wherein each data stream is received on one of a plurality of links in an aggregated link, and wherein the high priority data in each data stream is substantially identical.

Abstract translation: 一种网络组件，包括处理器，其被配置为实现包括通过多个链路将数据流传送到目的地的方法，所述数据流包括高优先级数据和多个低优先级数据，其中所述高优先级数据在 至少两个链路，并且其中低优先级数据分布在至少一些链路上。 还公开了一种方法，包括接收多个数据流，每个数据流包括高优先级数据和低优先级数据，其中每个数据流在聚合链路中的多个链路中的一个上被接收，并且其中高优先级 每个数据流中的数据基本相同。

公开(公告)号：US20080049707A1

公开(公告)日：2008-02-28

申请号：US11783176

申请日：2007-04-06

Applicant: Chang-yeul Kwon ,  Seong-soo Kim ,  Ji-sung Oh

Inventor： Chang-yeul Kwon ,  Seong-soo Kim ,  Ji-sung Oh

IPC: H04J1/00

CPC classification number: H04L1/0079 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0086 ,  H04L1/1877

Abstract: A wireless communication technology, and more particularly, a transmission packet for wireless transmission in a high frequency band, and a method and apparatus for transmitting and receiving using the same, are described. The structure of a transmission packet may include an MPDU composed of a plurality of transmission data units, a MAC header unit added to the MPDU, and a PHY header unit added to the MAC header unit, wherein the MAC header unit includes a MAC header generated based on the information used in a MAC layer, a first HCS field which determines if an error occurred in the MAC header or the PHY header, a MAC header extension field which exists depending on the setting of an indicator field in the MAC header, and a second HCS field which determines if an error occurred in the MAC header extension field.

Abstract translation: 一种无线通信技术，更具体地，涉及用于在高频带中进行无线传输的传输分组，以及使用该无线通信技术进行发送和接收的方法和装置。 发送分组的结构可以包括由多个传输数据单元组成的MPDU，添加到MPDU的MAC头单元，以及添加到该MAC头单元的PHY头部单元，其中，该MAC头单元包括生成的MAC头 基于在MAC层中使用的信息，确定MAC报头或PHY报头中是否发生错误的第一HCS字段，取决于MAC报头中的指示符字段的设置而存在的MAC报头扩展字段，以及 第二HCS字段，其确定在MAC头扩展字段中是否发生错误。

公开(公告)号：US20070030799A1

公开(公告)日：2007-02-08

申请号：US11498753

申请日：2006-08-04

Applicant: Satoshi Kaburaki ,  Masahiro Sekiya

Inventor： Satoshi Kaburaki ,  Masahiro Sekiya

IPC: H04J1/16

CPC classification number: H04L1/1819 ,  H04L1/0086 ,  H04L1/1607 ,  H04L1/1838 ,  H04L1/1854 ,  H04L1/1887 ,  H04L2001/0098

Abstract: A communication method includes causing a transmitter to apply error correcting or detecting code systems to multiple frames or packets and to transmit the multiple frames or packets in succession, causing a receiver to receive the transmitted frames or packets and to decode each of the frames or packets received, and causing the receiver to send an acknowledgment signal to the transmitter on the basis of the results of decoding of the frames or packets. The transmitter applies two or more error correcting or detecting code systems to the frames or packets.

Abstract translation: 通信方法包括使发射机对多个帧或分组进行纠错或检测码系统，并连续发送多个帧或分组，使得接收机接收所发送的帧或分组，并对每个帧或分组进行解码 并且使接收机根据帧或分组的解码结果向发射机发送确认信号。 发射机将两个或更多个错误校正或检测码系统应用于帧或数据包。

公开(公告)号：US06985726B2

公开(公告)日：2006-01-10

申请号：US09966828

申请日：2001-09-28

Applicant: Walid Ahmed ,  Santanu Kumar Das ,  Lorenz Fred Freiberg ,  John G Grogan ,  Si Ming Pan

Inventor： Walid Ahmed ,  Santanu Kumar Das ,  Lorenz Fred Freiberg ,  John G Grogan ,  Si Ming Pan

IPC: H04Q7/20 ,  G06F11/00

CPC classification number: H04L1/0059 ,  H04L1/0007 ,  H04L1/0046 ,  H04L1/0086 ,  H04L1/18

Abstract: A method of detecting the format of received information by detecting the format of a guiding channel of a communication system. With the use of a lookup table or other mapping technique, the detected guiding channel format is used to determine the format of the other channels of the communication system. Therefore, the format of received information can be determined without the use of TFCI information.

公开(公告)号：US06900828B2

公开(公告)日：2005-05-31

申请号：US10484066

申请日：2002-07-19

Applicant: Kumar Ramaswamy ,  Paul Gothard Knutson ,  Jeffrey Allen Cooper

Inventor： Kumar Ramaswamy ,  Paul Gothard Knutson ,  Jeffrey Allen Cooper

IPC: H04B1/16 ,  H04L1/00 ,  H04L12/56 ,  H04N5/21 ,  H04N5/44 ,  H04N7/24 ,  H04N7/26 ,  H04N19/89 ,  H04W24/00 ,  H04W28/14 ,  H04W72/12 ,  H04N7/06

CPC classification number: H04L1/08 ,  H04H20/30 ,  H04H20/42 ,  H04H20/72 ,  H04L1/007 ,  H04L1/0086 ,  H04L2001/0093 ,  H04N5/211 ,  H04N5/4401 ,  H04N19/37 ,  H04N19/39 ,  H04N19/67 ,  H04N19/89 ,  H04N21/234327 ,  H04N21/2365 ,  H04N21/2383 ,  H04N21/4347 ,  H04N21/4382 ,  H04N21/4392 ,  H04N21/44004 ,  H04N21/44209

Abstract: In a digital broadcast communications system, a higher priority component and a lower priority component are broadcast from a transmitter to a receiver. Each of these components generates a main and a supplemental signal, and each supplemental signal is advanced in time with respect to the corresponding main signal. The main and supplemental signals for both the higher and lower priority components are combined into a single signal, which is broadcast to a receiver. In the receiver, the time advanced supplemental signals are stored in a buffer to time align them with their corresponding main signals. Both main signals are processed in the normal manner in the receiver, and are also monitored to detect a fading event. When a fading event is detected, the corresponding buffered supplemental signals are substituted for the faded main signals and normal processing continues.

Abstract translation: 在数字广播通信系统中，从发射机到接收机广播较高优先权分量和较低优先权分量。 这些部件中的每一个产生主要信号和补充信号，并且每个补充信号相对于相应的主信号在时间上提前。 用于较高和较低优先级组件的主要和补充信号被组合成单个信号，其被广播到接收机。 在接收机中，时间先进的补充信号被存储在缓冲器中以使它们与其相应的主信号对准。 两个主信号在接收机中以正常方式进行处理，并被监控以检测衰落事件。 当检测到衰落事件时，相应的缓冲补充信号代替衰落的主信号，并继续正常处理。

公开(公告)号：US20050025188A1

公开(公告)日：2005-02-03

申请号：US10493306

申请日：2001-11-08

Applicant: Keiko Numakura ,  Akira Ohtsuka

Inventor： Keiko Numakura ,  Akira Ohtsuka

IPC: H04L1/00 ,  H04L12/28 ,  H04L29/06 ,  H04W16/02 ,  H04W28/00 ,  H04W28/04 ,  H04W28/06 ,  H04W40/00 ,  H04W40/08 ,  H04W40/12 ,  H04W40/30 ,  H04W80/00 ,  H04W80/10 ,  H04W92/10 ,  H04J1/00

CPC classification number: H04L1/0086 ,  H04L1/001 ,  H04L1/0017 ,  H04L1/0067 ,  H04L1/007 ,  H04L1/0072 ,  H04L29/06027 ,  H04L47/10 ,  H04L47/115 ,  H04L47/14 ,  H04L47/2416 ,  H04L47/2433 ,  H04L47/365 ,  H04L65/608 ,  H04L65/80 ,  H04L69/14 ,  H04L69/22 ,  H04W28/06 ,  H04W40/00 ,  H04W40/08 ,  H04W40/12 ,  H04W40/30 ,  H04W80/00 ,  H04W92/10

Abstract: In a VoIP system that employs the AMR coding system, by classifying packets by means of unequal error protection implemented during data coding based on the AMR coding system, and by transmitting packets through transport channels 26 corresponding to the required quality for the respective packets, an efficient and high-quality mobile communication system is obtained.

Abstract translation: 在采用AMR编码系统的VoIP系统中，通过在基于AMR编码系统的数据编码期间实现的不相等的错误保护对分组进行分类，并且通过对应于各个分组的所需质量的传输信道26发送分组， 获得高效，高质量的移动通信系统。

公开(公告)号：US20040013134A1

公开(公告)日：2004-01-22

申请号：US10167986

申请日：2002-06-11

Inventor： Petri Hautala

IPC: H04J003/00 ,  H04J003/24

CPC classification number: H04W72/1289 ,  H04L1/0086 ,  H04L69/22 ,  H04W72/1242 ,  H04W72/1284 ,  H04W84/12

Abstract: The invention discloses a method for detecting priority of data frames comprising the steps of extracting (S1) a bit pattern from a predetermined position in a frame, comparing (S2, S3) said extracted bit pattern with a search pattern, and identifying (S4) said received frame as a priority frame in case said extracted bit pattern (BP) matches with said first search pattern (SP). By this method, the priority of a data frame can easily be detected. The invention also proposes a corresponding device for detecting priority of data frames.

Abstract translation: 本发明公开了一种检测数据帧的优先级的方法，包括以下步骤：从帧中的预定位置提取（S1）位模式，将所提取的位模式与搜索模式进行比较（S2，S3），以及识别（S4） 所述接收帧作为优先级帧，在所述提取位模式（BP）与所述第一搜索模式（SP）匹配的情况下。 通过该方法，可以容易地检测数据帧的优先级。 本发明还提出了一种用于检测数据帧的优先级的相应设备。