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公开(公告)号：US07451378B2
公开(公告)日：2008-11-11
申请号：US11623617
申请日：2007-01-16
IPC分类号： H03M13/00
CPC分类号： H03M13/2785 , H03M13/1515 , H03M13/2707 , H03M13/6356 , H03M13/6362
摘要： Systems and methods 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, the addresses for the entries in the receive buffer being 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.
摘要翻译： 提供了用于处理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，接收缓冲器中的条目的地址按列主要顺序排列; （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。
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2.发明授权公开(公告)号：US08335969B2
公开(公告)日：2012-12-18
申请号：US12612865
申请日：2009-11-05
申请人： Rajugopal Gubbi , Ramanujan Valmiki
发明人： Rajugopal Gubbi , Ramanujan Valmiki
IPC分类号： H03M13/00
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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3.发明授权公开(公告)号：US07251231B2
公开(公告)日：2007-07-31
申请号：US10371824
申请日：2003-02-21
申请人： Rajugopal Gubbi
发明人： Rajugopal Gubbi
IPC分类号： H04J3/00
CPC分类号： H04W28/16 , H04L12/2803 , H04L12/2816 , H04L12/403 , H04L29/06 , H04L29/06027 , H04L67/42 , H04L2012/2841 , H04L2012/2849 , H04N21/43615 , H04N21/43637 , H04W84/02
摘要： A communication channel is controlled so as to dynamically accommodate network client requests for access thereto. The communication channel may be supported on a wireless link, such as a spread spectrum wireless link, and client requests for access thereto may be dynamically accommodated by allocating time slots for client transmissions on the wireless link. Providing a quiet time slot within which clients may request access to the communication channel may accommodate various client requests for access to the communication channel. These quiet slots may exist with other forward and reverse time slots which are superimposed on the communication channel, each forward and reverse time slot including one or more data frames. The forward and reverse time slots are preferably fixed, but negotiable, time periods. Each of the data frames may include a plurality of data packets, each of the data packets being variable in length. Preferably, each of the data packets includes error correction coding information as well as information which may be used to synchronize pseudo-random number generators of a transmitter and a receiver operating according to the communication protocol. Each of the data frames may further include link identification information that uniquely identifies a wireless link supporting the communication protocol.
摘要翻译： 控制通信信道以动态地适应网络客户端对其访问的请求。 可以在诸如扩频无线链路的无线链路上支持通信信道，并且可以通过为无线链路上的客户端传输分配时隙来动态地容纳对其的访问请求。 提供客户端可以请求访问通信信道的安静时隙可以适应用于访问通信信道的各种客户端请求。 这些安静时隙可以存在于其上叠加在通信信道上的其它正向和反向时隙，每个前向和反向时隙包括一个或多个数据帧。 正向和反向时隙优选地是固定的，但可协商的时间段。 每个数据帧可以包括多个数据分组，每个数据分组的长度是可变的。 优选地，每个数据分组包括纠错编码信息以及可以用于同步根据通信协议操作的发射机和接收机的伪随机数发生器的信息。 每个数据帧还可以包括唯一地标识支持通信协议的无线链路的链路标识信息。
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4.发明授权公开(公告)号：US07644343B2
公开(公告)日：2010-01-05
申请号：US11279683
申请日：2006-04-13
申请人： Rajugopal Gubbi , Ramanujan Valmiki
发明人： Rajugopal Gubbi , Ramanujan Valmiki
IPC分类号： H03M13/00
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： Transport stream (TS) packets containing sections of IP datagrams for an application level process are received and correct ones of said sections are stored into an MPE-FEC frame buffer of a receiver. Stored ones of said sections are reorganized within the frame buffer so as to leave appropriate positions, marked for erasure, within the frame buffer available for corrected data. Data bytes stored at the appropriate positions may be corrected using Reed-Solomon parity data stored in the frame buffer and then subsequently written back thereto.
摘要翻译： 接收到包含用于应用级处理的IP数据报段的传输流（TS）分组，并将所述部分中的正确的分组存储到接收机的MPE-FEC帧缓冲器中。 在帧缓冲器内重组所述部分中的存储的部分，以便在可用于校正数据的帧缓冲器内留下标记为擦除的适当位置。 可以使用存储在帧缓冲器中的Reed-Solomon奇偶校验数据来校正存储在适当位置的数据字节，然后随后将其写回。
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公开(公告)号：US07324785B2
公开(公告)日：2008-01-29
申请号：US09997938
申请日：2001-11-30
IPC分类号： H04B1/00
CPC分类号： H04B1/385 , H04B1/3838 , H04B2001/3872
摘要： A method and apparatus for controlling transmit power of a wireless communication device includes processing that begins when a transmitting wireless communication device transmits a packet to a targeted wireless device via a wireless channel of a communication system at a 1st power level. The processing continues by having the targeted wireless device determining signal strength of the packet received via the wireless channel. The processing then continues when the targeted and/or transmitting device determines the adequacy of the 1st power level based on the determined signal strength. If the 1st power level is adequate, the transmitting wireless device continues to transmit information at the 1st power level. If, however, the 1st power level is not adequate, the transmitting communication device adjusts its transmit power up or down to provide an adequate power level.
摘要翻译： 一种用于控制无线通信设备的发射功率的方法和装置包括当发送无线通信设备经由无线通信系统的无线信道向目标无线设备发送分组时开始的处理， 能量等级。 通过使目标无线设备确定经由无线信道接收到的分组的信号强度，继续处理。 然后，当目标和/或发射装置基于确定的信号强度来确定1 SUP的功率电平的充足性时，处理继续。 如果1 功率电平足够，则发送无线设备继续以1 SUP功率电平发送信息。 然而，如果第一功率电平不足，则发射通信设备向上或向下调整其发射功率以提供足够的功率电平。
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6.发明申请公开(公告)号：US20070186143A1
公开(公告)日：2007-08-09
申请号：US11279683
申请日：2006-04-13
申请人： Rajugopal Gubbi , Ramanujan Valmiki
发明人： Rajugopal Gubbi , Ramanujan Valmiki
IPC分类号： H03M13/00
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： Transport stream (TS) packets containing sections of IP datagrams for an application level process are received and correct ones of said sections are stored into an MPE-FEC frame buffer of a receiver. Stored ones of said sections are reorganized within the frame buffer so as to leave appropriate positions, marked for erasure, within the frame buffer available for corrected data. Data bytes stored at the appropriate positions may be corrected using Reed-Solomon parity data stored in the frame buffer and then subsequently written back thereto.
摘要翻译： 接收到包含用于应用级处理的IP数据报段的传输流（TS）分组，并将所述部分中的正确的分组存储到接收机的MPE-FEC帧缓冲器中。 在帧缓冲器内重组所述部分中的存储的部分，以便在可用于校正数据的帧缓冲器内留下标记为擦除的适当位置。 可以使用存储在帧缓冲器中的Reed-Solomon奇偶校验数据来校正存储在适当位置的数据字节，然后随后将其写回。
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公开(公告)号：US20090285172A1
公开(公告)日：2009-11-19
申请号：US12508816
申请日：2009-07-24
IPC分类号： H04W72/04
摘要： A method and apparatus for assigning holding packets in a wireless communication system or network includes determining an invalid station address that corresponds to an invalid station and that does not correspond to the address of an affiliated station. The invalid station address is assigned to a holding packet. The holding packet is transmitted to allocate a transmit period to the invalid station. This generates a quiet time in the wireless communication system or network during the transmit period.
摘要翻译： 一种用于在无线通信系统或网络中分配保持分组的方法和装置包括确定对应于无效站并且不对应于附属站的地址的无效站地址。 将无效站地址分配给保持分组。 发送保持分组以向无效站分配发送周期。 这在发送周期期间在无线通信系统或网络中产生安静的时间。
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8.发明授权Network slot synchronization scheme for a computer network communication channel 有权用于计算机网络通信信道的网络时隙同步方案公开(公告)号：US07324544B1
公开(公告)日：2008-01-29
申请号：US10368652
申请日：2003-02-18
IPC分类号： H04J3/16
CPC分类号： H04L1/16 , H04L12/2803 , H04L29/06 , H04L63/126 , H04L69/24 , H04W12/10 , H04W28/20 , H04W72/0406
摘要： Synchronization within a common communication channel having designated transmission time slots for various devices of a computer network is maintained by allowing transmissions within the channel outside of a network device's designated time slot when a clear channel assessment indicates that a previous time slot is not being utilized by its associated device and/or upon receipt of an indication of the end of a transmission of another device in the network. The clear channel assessment preferably takes into account the device's designated transmission time slot within the communication channel with respect to those of other network devices and may be a time period that is the product of a predetermined clear channel waiting time and a numerical representation of the device's designated transmission time slot within the communication channel with respect to those of other network devices. The clear channel waiting time itself may be specified by a network master device as part of a network connection process. The network device may be configured to construct one or more packets for transmission within the network in advance of its designated time slot to accommodate these early transmissions.
摘要翻译： 通过在清除信道评估指示未被前面的时隙未被利用的情况下，通过在网络设备的指定时隙之外的信道内的传输进行允许来维持具有用于计算机网络的各种设备的指定传输时隙的公共通信信道内的同步 其相关联的设备和/或在接收到网络中另一设备的传输结束的指示时。 清除信道评估优选地考虑到设备在通信信道内相对于其他网络设备的指定传输时隙，并且可以是作为预定的清除信道等待时间和设备的等待时间的乘积的乘积的时间段 在通信信道内相对于其他网络设备的指定传输时隙。 清除信道等待时间本身可以由网络主设备指定为网络连接过程的一部分。 网络设备可以被配置为在其指定的时隙之前构建用于在网络内传输的一个或多个分组，以适应这些早期传输。
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公开(公告)号：US20070054683A1
公开(公告)日：2007-03-08
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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10.发明授权Method and apparatus for accessing a wireless computer network communication channel by accessing quiet intervals in network frames 有权通过访问网络中的静默间隔来访问无线计算机网络通信信道的方法和装置公开(公告)号：US07093015B2
公开(公告)日：2006-08-15
申请号：US10361318
申请日：2003-02-10
IPC分类号： G06F15/16
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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