公开(公告)号：US20070113085A1

公开(公告)日：2007-05-17

申请号：US11470554

申请日：2006-09-06

申请人： Mats Naslund ,  Karl Norrman ,  Vesa Lehtovirta ,  Alex Raith

发明人： Mats Naslund ,  Karl Norrman ,  Vesa Lehtovirta ,  Alex Raith

IPC分类号： H04L9/00

CPC分类号： H04L9/12 ,  H04L9/0861 ,  H04L9/16

摘要： Methods for cryptographic synchronization of data packets. A roll-over counter (ROC) value is periodically appended to and transmitted with a data packet when a function of the packet sequence number equals a predetermined value. The ROC effectively synchronizes the cryptographic transformation of the data packets. Although the disclosed methods are generally applicable to many transmission protocols, they are particularly adaptable for use in systems wherein the data packets are transmitted to a receiver using the Secure Real-Time Transport Protocol (SRTP) as defined in Internet Engineering Task Force (IETF) Request for Comments (RFC) 3711.

摘要翻译： 数据包的密码同步方法。 当分组序列号的功能等于预定值时，翻转计数器（ROC）值周期性地附加到数据分组并与数据分组一起发送。 ROC有效地同步数据包的加密转换。 虽然所公开的方法通常适用于许多传输协议，但是它们特别适用于在使用因特网工程任务组（IETF）中定义的安全实时传输协议（SRTP）将数据分组发送到接收机的系统中， 请求注释（RFC）3711。

公开(公告)号：US20060072538A1

公开(公告)日：2006-04-06

申请号：US11236996

申请日：2005-09-28

申请人： Alex Raith

发明人： Alex Raith

IPC分类号： H04J3/24

CPC分类号： H04L1/0045 ,  H04L1/0041 ,  H04L1/0061 ,  H04L1/0072

摘要： An error detection unit performs erasure decoding for physical layer packets and an assembler assembles the received data into higher layer packets. Higher layer packets that are incomplete are not erased if the higher layer packets contain some data indicated as valid by the error detection unit. In the case of incomplete packets, the data is labeled by assigning a value to a reliability attribute for the data to enable the decoder to discriminate between valid and invalid data in the same packet. The decoder is modified to use “dimmed” data from the incomplete packets to perform decoding.

摘要翻译： 错误检测单元对物理层分组执行擦除解码，并且汇编器将接收的数据组装成更高层的分组。 如果较高层数据包包含错误检测单元指示为有效的某些数据，则不会擦除不完整的较高层数据包。 在不完整的分组的情况下，通过为数据的可靠性属性分配值来标记数据，以使解码器能够区分同一分组中的有效数据和无效数据。 解码器被修改为使用来自不完整分组的“暗淡”数据来执行解码。

公开(公告)号：US20050101333A1

公开(公告)日：2005-05-12

申请号：US11004211

申请日：2004-12-03

申请人： Alex Raith

发明人： Alex Raith

IPC分类号： G01S19/06 ,  G01S5/14 ,  G01S19/25 ,  G01S19/34 ,  G01S19/42 ,  H04Q7/20

CPC分类号： G01S19/42 ,  G01S19/34 ,  G01S2205/008

摘要： A mobile radiocommunications terminal contains or is operatively connected to a position estimator, such as a GPS receiver. The mobile terminal stores at least one reference position. The mobile terminal updates its position at a frequency that is a function of its distance from the reference position, or as a function of the rate of change of its distance from the reference position.

摘要翻译： 移动无线电通信终端包含或可操作地连接到诸如GPS接收机的位置估计器。 移动终端存储至少一个参考位置。 移动终端以其与参考位置的距离的函数的频率或者作为其与参考位置的距离的变化率的函数的函数来更新其位置。

公开(公告)号：US20050246417A1

公开(公告)日：2005-11-03

申请号：US11098292

申请日：2005-04-04

申请人： Alex Raith ,  Olle Franceschi

发明人： Alex Raith ,  Olle Franceschi

IPC分类号： H04L1/00 ,  H04L1/16 ,  H04L1/18 ,  G06F9/44

CPC分类号： H04L1/1854 ,  H04L1/0017 ,  H04L1/1628 ,  H04L1/1809 ,  H04L1/1812 ,  H04L2001/0093

摘要： A mobile station downloading an object over a broadcast channel uses a repair service to obtain data that was received in error during the original broadcast. The mobile station sets a repair threshold for the download object and invokes repair if the amount of errors is less than the repair threshold. If the amount of errors exceeds the repair threshold, the mobile station treats the download attempt as having failed and may send a new request if download is still desired.

摘要翻译： 通过广播频道下载对象的移动台使用修复服务来获得在原始广播期间错误接收的数据。 移动站设置下载对象的修复阈值，如果错误量小于修复阈值，则调用修复。 如果错误量超过修复阈值，则移动台将下载尝试视为失败，并且如果仍需要下载，则可以发送新请求。