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11.发明申请公开(公告)号：US20100115379A1
公开(公告)日：2010-05-06
申请号：US12612865
申请日：2009-11-05
申请人： Rajugopal Gubbi , Ramanujan Valmiki
发明人： Rajugopal Gubbi , Ramanujan Valmiki
CPC分类号： H04L1/0045 , H03M13/1515 , H03M13/154 , H03M13/2707 , H03M13/373 , H04L1/0057 , H04N21/4382 , H04N21/44004 , H04N21/4425 , H04N21/6112 , H04N21/64315
摘要： Systems, devices, and methods for error detection and correction in digital communication are disclosed. One such method comprises: storing data received in TS packets into an MPE-FEC frame buffer of a receiver according to locations indicated by an MPE-FEC frame buffer write pointer; and storing reliability information regarding said data separately therefrom, said reliability information including addresses of one or more locations in said MPE-FEC frame buffer to be marked for erasure. One such device is a receiver comprising an MPE-FEC frame buffer and an FEC decoder. The FEC decoder is configured to store data received in TS packets into the MPE-FEC buffer according to locations indicated by an MPE-FEC frame buffer write pointer. The FEC decoder is further configured to store reliability information regarding the data separately therefrom, the reliability information including addresses of one or more locations in the MPE-FEC frame buffer to be marked for erasure.
摘要翻译： 公开了用于数字通信中的错误检测和校正的系统，设备和方法。 一种这样的方法包括：根据由MPE-FEC帧缓冲器写指针指示的位置将接收到的TS数据包中的数据存储到接收机的MPE-FEC帧缓冲器中; 并且分别存储关于所述数据的可靠性信息，所述可靠性信息包括要标记为擦除的所述MPE-FEC帧缓冲器中的一个或多个位置的地址。 一种这样的设备是包括MPE-FEC帧缓冲器和FEC解码器的接收机。 FEC解码器被配置为根据由MPE-FEC帧缓冲器写指针指示的位置将在TS分组中接收的数据存储到MPE-FEC缓冲器中。 FEC解码器还被配置为从其分开存储关于数据的可靠性信息，所述可靠性信息包括要标记为擦除的MPE-FEC帧缓冲器中的一个或多个位置的地址。
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公开(公告)号：US07583933B2
公开(公告)日：2009-09-01
申请号：US11595363
申请日：2006-11-09
摘要： A method and apparatus for dynamic frequency selection in a wireless communication system or network includes processing that begins when an access point determines interference on a wireless channel that is being used by the access point. When the interference exceeds an interference threshold, the access point provides a request packet to affiliated stations being serviced by the access point for channel spectrum information. The processing continues as the affiliated stations generate the channel spectrum information regarding each of the wireless channels in the wireless communication network. The processing proceeds then as the affiliated stations provide the channel spectrum information to the access point via the current wireless channel. The access point interprets the channel spectrum information to determine a desired wireless channel of the plurality of wireless channels within the wireless communication network. The access point then provides a selection packet to the affiliated stations via the current wireless channel to indicate that the access point will begin using the desired wireless channel at a particular future time.
摘要翻译： 一种用于在无线通信系统或网络中进行动态频率选择的方法和装置包括当接入点确定由接入点正在使用的无线信道上的干扰时开始的处理。 当干扰超过干扰阈值时，接入点向由接入点为信道频谱信息服务的附属站提供请求分组。 处理继续，因为附属站产生关于无线通信网络中的每个无线信道的信道频谱信息。 然后，处理继续，随着附属站经由当前无线信道向接入点提供信道频谱信息。 接入点解释信道频谱信息以确定无线通信网络内的多个无线信道的期望的无线信道。 接入点然后经由当前无线信道向附属站提供选择分组，以指示接入点将在特定的未来时间开始使用期望的无线信道。
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公开(公告)号：US20070220406A1
公开(公告)日：2007-09-20
申请号：US11623617
申请日：2007-01-16
申请人： Rajugopal Gubbi , Javaji Babu , Ramanujan Valmiki
发明人： Rajugopal Gubbi , Javaji Babu , Ramanujan Valmiki
IPC分类号： H03M13/00
CPC分类号： H03M13/2785 , H03M13/1515 , H03M13/2707 , H03M13/6356 , H03M13/6362
摘要： A system and a method are provided for processing Multi-Protocol Encapsulation (MPE) under the DVB-H standard. The system includes: (a) a receive buffer having entries organized as columns and rows and in which the addresses for the entries in the receive buffer are arranged sequentially in column-major order; (b) a first process writing MPE data into the receive buffer, in the manner such that, for each frame, the application data portion and the error correction code portion are written sequentially in column major order, (c) a second process decoding the error correction code portion of each frame and which corrects the application data portion in accordance with the decoding; and (d) a third process reading out the application data portion from the receiver buffer column by column, the third process re-reading any column of the application portion that is corrected by the second process, when that column has previously been read by the third process. Under this system, the first process (a) keeps tracks of the locations of the MPE data of each frame in the receive buffer in a mapping table, and (b) writes the MPE data of a next frame is written into the locations of the error correcting code portion of a previous frame, when the locations become available.
摘要翻译： 提供了一种用于处理DVB-H标准下的多协议封装（MPE）的系统和方法。 该系统包括：（a）具有组织为列和行的条目的接收缓冲器，其中接收缓冲器中的条目的地址按列主序列顺序排列; （b）将MPE数据写入接收缓冲器的第一过程，以对于每个帧的方式，应用数据部分和纠错码部分以列主要顺序被顺序地写入，（c）第二处理解码 每个帧的纠错码部分，并根据解码校正应用数据部分; 和（d）第三进程逐列从接收器缓冲器读出应用数据部分，第三进程重新读取由第二进程校正的应用部分的任何列，当该列先前被 第三个过程。 在该系统下，第一过程（a）在映射表中保持接收缓冲器中每帧的MPE数据的位置的轨迹，并且（b）将下一帧的MPE数据写入到 当位置变得可用时，纠错前一帧的代码部分。
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公开(公告)号：US07158759B2
公开(公告)日：2007-01-02
申请号：US10011004
申请日：2001-12-03
摘要： A method and apparatus for dynamic frequency selection in a wireless communication system or network includes processing that begins when an access point determines interference on a wireless channel that is being used by the access point. When the interference exceeds an interference threshold, the access point provides a request packet to affiliated stations being serviced by the access point for channel spectrum information. The processing continues as the affiliated stations generate the channel spectrum information regarding each of the wireless channels in the wireless communication network. The processing proceeds then as the affiliated stations provide the channel spectrum information to the access point via the current wireless channel. The access point interprets the channel spectrum information to determine a desired wireless channel of the plurality of wireless channels within the wireless communication network. The access point then provides a selection packet to the affiliated stations via the current wireless channel to indicate that the access point will begin using the desired wireless channel at a particular future time.
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15.发明申请公开(公告)号：US20050262241A1
公开(公告)日：2005-11-24
申请号：US10361318
申请日：2003-02-10
IPC分类号： H04B7/24 , H04L1/16 , H04L12/28 , H04L12/413 , H04L12/56 , H04L29/06 , G06F15/173
CPC分类号： H04L29/06 , H04L1/16 , H04L12/2803 , H04L63/126 , H04L69/24 , H04W12/10 , H04W28/20 , H04W72/0406
摘要： Admission to a computer network is provided by having a network device listen to a communication channel communicatively coupling two or more components of the computer network. In some cases, the network device may then transmit a connection request to a controller of the computer network within a designated time slot of the communication channel. In other cases, the connection request may be transmitted without requiring the network device to be polled. The connection request may be confirmed by transmitting the connection request from the controller to network device periodically, until a response from the first network device is received by the controller. Upon confirmation, the controller may send to the network device, a connection agreements package, which includes information regarding time slots within the communication channel to be used by the controller for transmitting information to the first network device. The connection agreement packet may further include information regarding time slots within the communication channel to be used by the network device when transmitting information to the controller. Thus, during normal communications, data from the network device destined for the controller may be transmitted in the time slots designated in the connection agreement packet. In some cases, the information sent between the network device and the controller includes packets and, in such cases, the connection agreement may include information regarding a maximum number of bytes the network device can send or expect to receive in each packet, for each type of data included in a packet.
摘要翻译： 通过使网络设备监听通信地耦合计算机网络的两个或多个组件的通信信道来提供对计算机网络的准入。 在一些情况下，网络设备然后可以在通信信道的指定时隙内向计算机网络的控制器发送连接请求。 在其他情况下，可以发送连接请求，而不需要轮询网络设备。 可以通过从控制器周期性地向网络设备发送连接请求来确认连接请求，直到由控制器接收到来自第一网络设备的响应。 在确认之后，控制器可以向网络设备发送连接协议包，该连接协议包包括关于要由控制器用于向第一网络设备发送信息的通信信道内的时隙的信息。 连接协议分组还可以包括关于在向控制器发送信息时由网络设备使用的通信信道内的时隙的信息。 因此，在正常通信期间，可以在连接协议分组中指定的时隙中发送来自控制器的来自网络设备的数据。 在一些情况下，在网络设备和控制器之间发送的信息包括分组，并且在这种情况下，连接协议可以包括关于网络设备可以在每个分组中发送或期望接收的最大字节数的信息，对于每种类型 包含在数据包中的数据。
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