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    Method for selecting frame encoding parameters to improve transmission performance in a frame-based communications network
    2.
    发明授权
    Method for selecting frame encoding parameters to improve transmission performance in a frame-based communications network 有权
    用于选择帧编码参数以改善基于帧的通信网络中的传输性能的方法

    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。

    Method for providing dynamic adjustment of frame encoding parameters in a frame-based communications network
    5.
    发明授权
    Method for providing dynamic adjustment of frame encoding parameters in a frame-based communications network 失效
    一种用于在基于帧的通信网络中提供帧编码参数的动态调整的方法

    公开(公告)号：US07822005B2

    公开(公告)日：2010-10-26

    申请号：US12102634

    申请日：2008-04-14

    申请人： Henry S. Ptasinski ,  Jason Alexander Trachewsky ,  Tracy D. Mallory

    发明人： Henry S. Ptasinski ,  Jason Alexander Trachewsky ,  Tracy D. Mallory

    IPC分类号： H04W4/00

    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： Methods and apparatus for data communication are disclosed. An example method includes encoding a first plurality of transmitting frames, where a header segment of each frame is encoded in accordance with a fixed set of header encoding parameters and a payload segment of each frame is encoded in accordance with a first set of a variable set of payload encoding parameters. The example method also includes transmitting the first plurality of transmitting frames to a receiving station and receiving a request from the receiving station to change the first set of payload encoding parameters to a second set of the variable set of payload encoding parameters. The example method further includes selecting the second set of payload encoding parameters based on the request and encoding a second plurality of transmitting frames, where a header segment of each frame of the second plurality of transmitting frames is encoded in accordance with the fixed set of header encoding parameters and a payload segment of each frame of the second plurality of transmitting frames is encoded in accordance with the second set of payload encoding parameters. The example method still further includes transmitting the second plurality of transmitting frames to the receiving station.

    摘要翻译： 公开了用于数据通信的方法和装置。 一种示例性方法包括对第一多个发送帧进行编码，其中根据固定的一组报头编码参数对每个帧的报头段进行编码，并且根据第一组变量集编码每帧的有效载荷段 的有效载荷编码参数。 示例性方法还包括将第一多个发送帧发送到接收站，并且从接收站接收将第一组有效载荷编码参数改变为第二组有效载荷编码参数的可变集合的请求。 该示例性方法还包括基于该请求选择第二组有效载荷编码参数，并对第二多个发送帧进行编码，其中第二多个发送帧的每个帧的报头段根据固定的报头集进行编码 根据第二组有效载荷编码参数来编码第二多个发送帧的每个帧的编码参数和有效载荷段。 该示例方法还包括将第二多个发送帧发送到接收站。

    METHOD FOR PROVIDING DYNAMIC ADJUSTMENT OF FRAME ENCODING PARAMETERS IN A FRAME-BASED COMMUNICATIONS NETWORK
    6.
    发明申请
    METHOD FOR PROVIDING DYNAMIC ADJUSTMENT OF FRAME ENCODING PARAMETERS IN A FRAME-BASED COMMUNICATIONS NETWORK 失效
    在基于帧通信网络中提供帧编码参数的动态调整的方法

    公开(公告)号：US20090046593A1

    公开(公告)日：2009-02-19

    申请号：US12102634

    申请日：2008-04-14

    申请人： Henry S. Ptasinski ,  Jason Alexander Trachewsky ,  Tracy D. Mallory

    发明人： Henry S. Ptasinski ,  Jason Alexander Trachewsky ,  Tracy D. Mallory

    IPC分类号： H04L12/28 ,  H04L12/56

    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： Methods and apparatus for data communication are disclosed. An example method includes encoding a first plurality of transmitting frames, where a header segment of each frame is encoded in accordance with a fixed set of header encoding parameters and a payload segment of each frame is encoded in accordance with a first set of a variable set of payload encoding parameters. The example method also includes transmitting the first plurality of transmitting frames to a receiving station and receiving a request from the receiving station to change the first set of payload encoding parameters to a second set of the variable set of payload encoding parameters. The example method further includes selecting the second set of payload encoding parameters based on the request and encoding a second plurality of transmitting frames, where a header segment of each frame of the second plurality of transmitting frames is encoded in accordance with the fixed set of header encoding parameters and a payload segment of each frame of the second plurality of transmitting frames is encoded in accordance with the second set of payload encoding parameters. The example method still further includes transmitting the second plurality of transmitting frames to the receiving station.

    摘要翻译： 公开了用于数据通信的方法和装置。 一种示例性方法包括对第一多个发送帧进行编码，其中根据固定的一组报头编码参数对每个帧的报头段进行编码，并且根据第一组变量集编码每帧的有效载荷段 的有效载荷编码参数。 示例性方法还包括将第一多个发送帧发送到接收站，并且从接收站接收将第一组有效载荷编码参数改变为第二组有效载荷编码参数的可变集合的请求。 该示例性方法还包括：基于该请求选择第二组有效载荷编码参数，并对第二多个发送帧进行编码，其中第二多个发送帧的每个帧的报头段根据固定的报头集进行编码 根据第二组有效载荷编码参数来编码第二多个发送帧的每个帧的编码参数和有效载荷段。 该示例方法还包括将第二多个发送帧发送到接收站。

    Derivation method for cached keys in wireless communication system
    7.
    发明申请
    Derivation method for cached keys in wireless communication system 有权
    无线通信系统缓存密钥的推导方法

    公开(公告)号：US20090232302A1

    公开(公告)日：2009-09-17

    申请号：US12474698

    申请日：2009-05-29

    申请人： Henry S. Ptasinski

    发明人： Henry S. Ptasinski

    IPC分类号： H04L9/30 ,  H04L9/08

    CPC分类号： H04L9/0836 ,  H04L63/062 ,  H04L63/0892 ,  H04L2209/80 ,  H04L2463/061 ,  H04W12/04 ,  H04W84/12

    摘要： A method and apparatus for providing improved security and improved roaming transition times in wireless networks. The same pairwise master key (PMK) from an authentication server can be used across multiple access points and a new pairwise transition key (PTK) is derived for each association of a station to any of the access points. A plurality of access points are organized in functional hierarchical levels and are operable to advertise an indicator of the PMK cache depth supported by a group of access points (N) and an ordered list of the identifiers for the derivation path. Access points in each level in the cache hierarchy compute the derived pairwise master keys (DPMKs) for devices in the next lower level in the hierarchy and then deliver the DPMKs to those devices. An access point calculates the PTK as part of the security exchange process when the station wishes to associate to the access point. The station also computes the PTK as part of the security exchange process. The station calculates all the DMPKs in the hierarchy as part of computing the PTK. The method and apparatus allow the cache depth to vary per station, but it remains constant for a given station within a key circle.

    摘要翻译： 一种用于在无线网络中提供改进的安全性和改进的漫游转换时间的方法和装置。 来自认证服务器的相同成对主密钥（PMK）可以跨多个接入点使用，并且为每个接入点的任何一个站点的每个关联导出新的成对转换密钥（PTK）。 多个接入点被组织在功能层级中，并且可操作地通告由一组接入点（N）支持的PMK高速缓存深度的指示符和用于导出路径的标识符的有序列表。 高速缓存层次结构中每个级别的访问点为层次结构中下一级的设备计算派生的成对主密钥（DPMK），然后将DPMK传送到这些设备。 当站希望与接入点关联时，接入点计算PTK作为安全交换过程的一部分。 该站还计算PTK作为安全交换过程的一部分。 该台计算层次结构中的所有DMPK作为计算PTK的一部分。 该方法和装置允许缓存深度在每个站点上变化，但是对于给定的一个密钥圈内的站点，该深度保持不变。

    Derivation method for cached keys in wireless communication system
    9.
    发明授权
    Derivation method for cached keys in wireless communication system 有权
    无线通信系统缓存密钥的推导方法

    公开(公告)号：US07936879B2

    公开(公告)日：2011-05-03

    申请号：US12474698

    申请日：2009-05-29

    申请人： Henry S. Ptasinski

    发明人： Henry S. Ptasinski

    IPC分类号： H04K1/00

    CPC分类号： H04L9/0836 ,  H04L63/062 ,  H04L63/0892 ,  H04L2209/80 ,  H04L2463/061 ,  H04W12/04 ,  H04W84/12

    摘要： A method and apparatus for providing improved security and improved roaming transition times in wireless networks. The same pairwise master key (PMK) from an authentication server can be used across multiple access points and a new pairwise transition key (PTK) is derived for each association of a station to any of the access points. A plurality of access points are organized in functional hierarchical levels and are operable to advertise an indicator of the PMK cache depth supported by a group of access points (N) and an ordered list of the identifiers for the derivation path. Access points in each level in the cache hierarchy compute the derived pairwise master keys (DPMKs) for devices in the next lower level in the hierarchy and then deliver the DPMKs to those devices. An access point calculates the PTK as part of the security exchange process when the station wishes to associate to the access point. The station also computes the PTK as part of the security exchange process. The station calculates all the DMPKs in the hierarchy as part of computing the PTK. The method and apparatus allow the cache depth to vary per station, but it remains constant for a given station within a key circle.

    摘要翻译： 一种用于在无线网络中提供改进的安全性和改进的漫游转换时间的方法和装置。 来自认证服务器的相同成对主密钥（PMK）可以跨多个接入点使用，并且为每个接入点的任何一个站点的每个关联导出新的成对转换密钥（PTK）。 多个接入点被组织在功能层级中，并且可操作地通告由一组接入点（N）支持的PMK高速缓存深度的指示符和用于导出路径的标识符的有序列表。 高速缓存层次结构中每个级别的访问点为层次结构中下一级的设备计算派生的成对主密钥（DPMK），然后将DPMK传送到这些设备。 当站希望与接入点关联时，接入点计算PTK作为安全交换过程的一部分。 该站还计算PTK作为安全交换过程的一部分。 该台计算层次结构中的所有DMPK作为计算PTK的一部分。 该方法和装置允许缓存深度在每个站点上变化，但是对于给定的一个密钥圈内的站点，该深度保持不变。

    Derivation method for cached keys in wireless communication system
    10.
    发明授权
    Derivation method for cached keys in wireless communication system 有权
    无线通信系统缓存密钥的推导方法

    公开(公告)号：US07558388B2

    公开(公告)日：2009-07-07

    申请号：US10966276

    申请日：2004-10-15

    申请人： Henry S. Ptasinski

    发明人： Henry S. Ptasinski

    IPC分类号： H04K1/00

    CPC分类号： H04L9/0836 ,  H04L63/062 ,  H04L63/0892 ,  H04L2209/80 ,  H04L2463/061 ,  H04W12/04 ,  H04W84/12

    摘要： A method and apparatus for providing improved security and improved roaming transition times in wireless networks. In the present invention, the same pairwise master key (PMK) from an authentication server can be used across multiple access points and a new pairwise transition key (PTK) is derived for each association of a station to any of the access points. A plurality of access points are organized in functional hierarchical levels and are operable to advertise an indicator of the PMK cache depth supported by a group of access points (N) and an ordered list of the identifiers for the derivation path. Access points in each level in the cache hierarchy compute the derived pairwise master keys (DPMKs) for devices in the next lower level in the hierarchy and then deliver the DPMKs to those devices. An access point calculates the PTK as part of the security exchange process when the station wishes to associate to the access point. The station also computes the PTK as part of the security exchange process. The station calculates all the DMPKs in the hierarchy as part of computing the PTK. The method and apparatus of the present invention allows the cache depth to vary per station, but it remains constant for a given station within a key circle.

    摘要翻译： 一种用于在无线网络中提供改进的安全性和改进的漫游转换时间的方法和装置。 在本发明中，可以跨多个接入点使用来自认证服务器的相同成对主密钥（PMK），并且为每个接入点的任一个关联导出新的成对转换密钥（PTK）。 多个接入点被组织在功能层级中，并且可操作地通告由一组接入点（N）支持的PMK高速缓存深度的指示符和用于导出路径的标识符的有序列表。 高速缓存层次结构中每个级别的访问点为层次结构中下一级的设备计算派生的成对主密钥（DPMK），然后将DPMK传送到这些设备。 当站希望与接入点关联时，接入点计算PTK作为安全交换过程的一部分。 该站还计算PTK作为安全交换过程的一部分。 该台计算层次结构中的所有DMPK作为计算PTK的一部分。 本发明的方法和装置允许缓存深度根据每个站点而变化，但是对于给定的一个密钥圈内的站点，其保持恒定。