公开(公告)号：US20120044829A1

公开(公告)日：2012-02-23

申请号：US13285837

申请日：2011-10-31

申请人： Paul W. Piggin ,  Srikanth Gummadi ,  Ron Porat ,  Kenneth L. Stanwood

发明人： Paul W. Piggin ,  Srikanth Gummadi ,  Ron Porat ,  Kenneth L. Stanwood

IPC分类号： H04W72/04 ,  H04W84/00 ,  H04L12/28 ,  H04W28/00 ,  H04L12/26 ,  H04W24/00

CPC分类号： H04W16/14 ,  H04W8/005 ,  H04W48/12 ,  H04W76/10 ,  H04W92/20

摘要： Enhanced frame preambles facilitate co-channel co-existence in a wireless communication environment by having at least one preamble characteristic that connotes channel-sharing information regarding the wireless communication environment. In an exemplary embodiment, a downlink subframe is received in one or more wireless communication signals in a wireless communication environment. A preamble is detected in the downlink subframe, and at least one characteristic of the preamble is ascertained. Channel-sharing information for the wireless communication environment is determined based upon the at least one characteristic of the preamble. In another exemplary embodiment, a channel is scanned to detect secondary preambles being transmitted on the channel. A current preamble configuration, including a permutation of preamble location and preamble content corresponding to the secondary preambles, is determined, which connote channel-sharing information. A next available preamble location may be adopted based on the current preamble configuration.

摘要翻译： 增强帧前同步码可以通过具有至少一个前导码特征来促进无线通信环境中的共信道共存，该前导码特征意味着关于无线通信环境的信道共享信息。 在示例性实施例中，在无线通信环境中的一个或多个无线通信信号中接收下行链路子帧。 在下行链路子帧中检测到前导码，并且确定前导码的至少一个特征。 基于前导码的至少一个特征来确定用于无线通信环境的信道共享信息。 在另一示例性实施例中，扫描信道以检测正在信道上发送的辅助前同步码。 确定包括前导码位置的置换和对应于次要前导码的前导码内容的当前前置码配置，这意味着信道共享信息。 可以基于当前前置码配置来采用下一个可用的前导码位置。

公开(公告)号：US20080253320A1

公开(公告)日：2008-10-16

申请号：US11930695

申请日：2007-10-31

申请人： Paul W. Piggin ,  Srikanth Gummadi ,  Ron Porat ,  Kenneth L. Stanwood

发明人： Paul W. Piggin ,  Srikanth Gummadi ,  Ron Porat ,  Kenneth L. Stanwood

IPC分类号： H04Q7/20

CPC分类号： H04W16/14 ,  H04W8/005 ,  H04W48/12 ,  H04W76/10 ,  H04W92/20

摘要： Enhanced frame preambles facilitate co-channel co-existence in a wireless communication environment by having at least one preamble characteristic that connotes channel-sharing information regarding the wireless communication environment. In an exemplary embodiment, a downlink subframe is received in one or more wireless communication signals in a wireless communication environment. A preamble is detected in the downlink subframe, and at least one characteristic of the preamble is ascertained. Channel-sharing information for the wireless communication environment is determined based upon the at least one characteristic of the preamble. In another exemplary embodiment, a channel is scanned to detect secondary preambles being transmitted on the channel. A current preamble configuration, including a permutation of preamble location and preamble content corresponding to the secondary preambles, is determined, which connote channel-sharing information. A next available preamble location may be adopted based on the current preamble configuration.

摘要翻译： 增强帧前同步码通过具有至少一个前导码特性来促进无线通信环境中的共信道共存，该前导码特征意味着关于无线通信环境的信道共享信息。 在示例性实施例中，在无线通信环境中的一个或多个无线通信信号中接收下行链路子帧。 在下行链路子帧中检测到前导码，并且确定前导码的至少一个特征。 基于前导码的至少一个特征来确定用于无线通信环境的信道共享信息。 在另一示例性实施例中，扫描信道以检测正在信道上发送的辅助前同步码。 确定包括前导码位置的置换和对应于次要前导码的前导码内容的当前前置码配置，这意味着信道共享信息。 可以基于当前前置码配置来采用下一个可用的前导码位置。

公开(公告)号：US08422432B2

公开(公告)日：2013-04-16

申请号：US13285837

申请日：2011-10-31

申请人： Paul W. Piggin ,  Srikanth Gummadi ,  Ron Porat ,  Kenneth L. Stanwood

发明人： Paul W. Piggin ,  Srikanth Gummadi ,  Ron Porat ,  Kenneth L. Stanwood

IPC分类号： H04W4/00

CPC分类号： H04W16/14 ,  H04W8/005 ,  H04W48/12 ,  H04W76/10 ,  H04W92/20

摘要： Enhanced frame preambles facilitate co-channel co-existence in a wireless communication environment by having at least one preamble characteristic that connotes channel-sharing information regarding the wireless communication environment. In an exemplary embodiment, a downlink subframe is received in one or more wireless communication signals in a wireless communication environment. A preamble is detected in the downlink subframe, and at least one characteristic of the preamble is ascertained. Channel-sharing information for the wireless communication environment is determined based upon the at least one characteristic of the preamble. In another exemplary embodiment, a channel is scanned to detect secondary preambles being transmitted on the channel. A current preamble configuration, including a permutation of preamble location and preamble content corresponding to the secondary preambles, is determined, which connote channel-sharing information. A next available preamble location may be adopted based on the current preamble configuration.

摘要翻译： 增强帧前同步码可以通过具有至少一个前导码特征来促进无线通信环境中的共信道共存，该前导码特征意味着关于无线通信环境的信道共享信息。 在示例性实施例中，在无线通信环境中的一个或多个无线通信信号中接收下行链路子帧。 在下行链路子帧中检测到前导码，并且确定前导码的至少一个特征。 基于前导码的至少一个特征来确定用于无线通信环境的信道共享信息。 在另一示例性实施例中，扫描信道以检测正在信道上发送的辅助前同步码。 确定包括前导码位置的置换和对应于次要前导码的前导码内容的当前前置码配置，这意味着信道共享信息。 可以基于当前前置码配置来采用下一个可用的前导码位置。

公开(公告)号：US08050223B2

公开(公告)日：2011-11-01

申请号：US11930695

申请日：2007-10-31

申请人： Paul W. Piggin ,  Srikanth Gummadi ,  Ron Porat ,  Kenneth L. Stanwood

发明人： Paul W. Piggin ,  Srikanth Gummadi ,  Ron Porat ,  Kenneth L. Stanwood

IPC分类号： H04W4/00

CPC分类号： H04W16/14 ,  H04W8/005 ,  H04W48/12 ,  H04W76/10 ,  H04W92/20

摘要： Enhanced frame preambles facilitate co-channel co-existence in a wireless communication environment by having at least one preamble characteristic that connotes channel-sharing information regarding the wireless communication environment. In an exemplary embodiment, a downlink subframe is received in one or more wireless communication signals in a wireless communication environment. A preamble is detected in the downlink subframe, and at least one characteristic of the preamble is ascertained. Channel-sharing information for the wireless communication environment is determined based upon the at least one characteristic of the preamble. In another exemplary embodiment, a channel is scanned to detect secondary preambles being transmitted on the channel. A current preamble configuration, including a permutation of preamble location and preamble content corresponding to the secondary preambles, is determined, which connote channel-sharing information. A next available preamble location may be adopted based on the current preamble configuration.

摘要翻译： 增强帧前同步码可以通过具有至少一个前导码特征来促进无线通信环境中的共信道共存，该前导码特征意味着关于无线通信环境的信道共享信息。 在示例性实施例中，在无线通信环境中的一个或多个无线通信信号中接收下行链路子帧。 在下行链路子帧中检测到前导码，并且确定前导码的至少一个特性。 基于前导码的至少一个特征来确定用于无线通信环境的信道共享信息。 在另一示例性实施例中，扫描信道以检测正在信道上发送的辅助前同步码。 确定包括前导码位置的置换和对应于次要前导码的前导码内容的当前前置码配置，这意味着信道共享信息。 可以基于当前前置码配置来采用下一个可用的前导码位置。

公开(公告)号：US08626072B2

公开(公告)日：2014-01-07

申请号：US13472040

申请日：2012-05-15

申请人： Hari Sankar ,  Ron Porat ,  Danjie Pan ,  Wee Peng Goh ,  Srikanth Gummadi ,  Lei Wang

发明人： Hari Sankar ,  Ron Porat ,  Danjie Pan ,  Wee Peng Goh ,  Srikanth Gummadi ,  Lei Wang

IPC分类号： H04B1/00

CPC分类号： H04L5/0032 ,  H04L1/0026 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0057 ,  H04L5/0062 ,  H04L5/0066 ,  H04L25/0204 ,  H04W72/0406 ,  H04W72/0453 ,  H04W72/048 ,  H04W72/082

摘要： Methods and apparatus are described for mitigating intercell interference in wireless communication systems utilizing substantially the same operating frequency band across multiple neighboring coverage areas. The operating frequency band may be shared across multiple neighboring or otherwise adjacent cells, such as in a frequency reuse one configuration. The wireless communication system can synchronize one or more resource allocation regions or zones across the multiple base stations, and can coordinate a permutation type within each resource allocation zone. The base stations can coordinate a pilot configuration in each of a plurality of coordinated resource allocation regions. Subscriber stations can be assigned resources in a coordinated resource allocation region based on interference levels. A subscriber station can determine a channel estimate for each of multiple base stations in the coordinated resource allocation region to mitigate interference.

摘要翻译： 描述了用于减轻跨越多个相邻覆盖区域的基本上相同的工作频带的无线通信系统中的小区间干扰的方法和装置。 操作频带可以在多个相邻或相邻的小区之间共享，例如在频率重用一个配置中。 无线通信系统可以跨多个基站同步一个或多个资源分配区域或区域，并且可以协调每个资源分配区域内的置换类型。 基站可以协调多个协调资源分配区域中的每一个中的导频配置。 可以基于干扰级别在协调的资源分配区域中为用户站分配资源。 订户站可以确定协调资源分配区域中的多个基站中的每个基站的信道估计以减轻干扰。

公开(公告)号：US20090190465A1

公开(公告)日：2009-07-30

申请号：US12021167

申请日：2008-01-28

申请人： Ron Porat ,  Yu Wen ,  Peter J. Graumann ,  Srikanth Gummadi

发明人： Ron Porat ,  Yu Wen ,  Peter J. Graumann ,  Srikanth Gummadi

IPC分类号： H04J11/00

CPC分类号： H04L27/2647 ,  H04L27/2657 ,  H04L27/2662

摘要： The subject matter disclosed herein provides methods and apparatus, including computer program products, for detecting a preamble to enable acquisition of a downlink. In one aspect, there is provided a method. The method may include receiving a plurality of symbols. From an autocorrelation of the received symbols, a guard interval may be detected. The guard interval may represent a receive/transmit transition gap (RTG). A metric may be used to verify whether at least one symbol positioned after the detected guard interval is a preamble. Related systems, apparatus, methods, and/or articles are also described.

摘要翻译： 本文公开的主题提供了用于检测前导码以使得能够获取下行链路的方法和装置，包括计算机程序产品。 一方面，提供了一种方法。 该方法可以包括接收多个符号。 根据接收到的符号的自相关，可以检测到保护间隔。 保护间隔可以表示接收/发送转换间隙（RTG）。 可以使用度量来验证位于检测到的保护间隔之后的至少一个符号是否是前同步码。 还描述了相关系统，装置，方法和/或制品。

公开(公告)号：US08139537B2

公开(公告)日：2012-03-20

申请号：US12265435

申请日：2008-11-05

申请人： Roger Marks ,  Lei Wang ,  Yair Bourlas ,  Srikanth Gummadi ,  Kenneth Stanwood ,  Ron Porat

发明人： Roger Marks ,  Lei Wang ,  Yair Bourlas ,  Srikanth Gummadi ,  Kenneth Stanwood ,  Ron Porat

IPC分类号： H04W72/04 ,  H04B7/208

CPC分类号： H04W72/0453 ,  H04L5/0007 ,  H04L5/14 ,  H04W16/14 ,  H04W72/04 ,  H04W72/0446

摘要： An advanced technology frame structure is described herein. The advanced technology frame structure can enhance a first technology frame structure in dimensions of time, frequency, or a combination of time and frequency. A second technology frame structure time division multiplexes second technology subframes with the first technology downlink and uplink subframes. The first technology downlink subframe can be divided into a first technology downlink subframe and one or more second technology downlink subframes. Similarly, the first technology uplink subframe can be divided into a first uplink subframe and one or more second technology uplink subframes. These principles can be expanded upon and can be applied in many communication systems.

摘要翻译： 这里描述了一种先进的技术框架结构。 先进的技术框架结构可以在时间，频率或时间和频率的组合方面增强第一技术框架结构。 第二技术帧结构时分复用第二技术子帧与第一技术下行链路和上行链路子帧。 第一技术下行链路子帧可以被划分为第一技术下行链路子帧和一个或多个第二技术下行链路子帧。 类似地，第一技术上行链路子帧可以被划分为第一上行链路子帧和一个或多个第二技术上行链路子帧。 这些原则可以扩展并且可以应用于许多通信系统。

公开(公告)号：US08064913B2

公开(公告)日：2011-11-22

申请号：US11689473

申请日：2007-03-21

申请人： Srikanth Gummadi ,  Ron Porat ,  Todd R. Sutton

发明人： Srikanth Gummadi ,  Ron Porat ,  Todd R. Sutton

IPC分类号： H04W36/00 ,  H04W4/00 ,  H04J11/00

CPC分类号： H04W4/027 ,  H04L5/0007 ,  H04W24/00 ,  H04W24/08 ,  H04W28/18 ,  H04W52/282 ,  H04W64/006 ,  H04W72/048

摘要： Methods and apparatus for identifying a subscriber station which is in motion, determining a mobility metric indicative of a level of mobility of the subscriber station and varying or updating one or more operating parameters based on the mobility metric. An apparatus can determine a measure of mobility based on one or a combination of a plurality of factors, such as variations in signal strength, variations in a channel estimate, or variations in phase or frequency of a particular signal or signal component. The one or more measures of mobility can be combined to form a single measure of mobility, the measure of mobility can be quantized to a predetermined number of mobility levels and one or more operating parameters can be varied or adjusted based on the mobility level.

摘要翻译： 用于识别运动中的用户站的方法和装置，确定表示用户台的移动性水平的移动性度量，并且基于移动性度量改变或更新一个或多个运行参数。 装置可以基于多个因素的一个或组合来确定移动性的度量，例如信号强度的变化，信道估计的变化，或特定信号或信号分量的相位或频率的变化。 移动性的一个或多个测量可以被组合以形成移动性的单个度量，可以将移动性的量度量化到预定数量的移动性水平，并且可以基于移动性水平来改变或调整一个或多个操作参数。

公开(公告)号：US07961593B2

公开(公告)日：2011-06-14

申请号：US12021167

申请日：2008-01-28

申请人： Ron Porat ,  Yu Wen ,  Peter J. Graumann ,  Srikanth Gummadi

发明人： Ron Porat ,  Yu Wen ,  Peter J. Graumann ,  Srikanth Gummadi

IPC分类号： H04J11/00

CPC分类号： H04L27/2647 ,  H04L27/2657 ,  H04L27/2662

摘要： The subject matter disclosed herein provides methods and apparatus, including computer program products, for detecting a preamble to enable acquisition of a downlink. In one aspect, there is provided a method. The method may include receiving a plurality of symbols. From an autocorrelation of the received symbols, a guard interval may be detected. The guard interval may represent a receive/transmit transition gap (RTG). A metric may be used to verify whether at least one symbol positioned after the detected guard interval is a preamble. Related systems, apparatus, methods, and/or articles are also described.

摘要翻译： 本文公开的主题提供了用于检测前导码以使得能够获取下行链路的方法和装置，包括计算机程序产品。 一方面，提供了一种方法。 该方法可以包括接收多个符号。 根据接收到的符号的自相关，可以检测到保护间隔。 保护间隔可以表示接收/发送转换间隙（RTG）。 可以使用度量来验证位于检测到的保护间隔之后的至少一个符号是否是前同步码。 还描述了相关系统，装置，方法和/或制品。

公开(公告)号：US08687585B2

公开(公告)日：2014-04-01

申请号：US13372123

申请日：2012-02-13

申请人： Roger Marks ,  Lei Wang ,  Yair Bourlas ,  Srikanth Gummadi ,  Kenneth Stanwood ,  Ron Porat

发明人： Roger Marks ,  Lei Wang ,  Yair Bourlas ,  Srikanth Gummadi ,  Kenneth Stanwood ,  Ron Porat

IPC分类号： H04W72/04 ,  H04B7/208 ,  H04J4/00

CPC分类号： H04W72/0453 ,  H04L5/0007 ,  H04L5/14 ,  H04W16/14 ,  H04W72/04 ,  H04W72/0446

摘要： An advanced technology frame structure is described herein. The advanced technology frame structure can enhance a first technology frame structure in dimensions of time, frequency, or a combination of time and frequency. A second technology frame structure time division multiplexes second technology subframes with the first technology downlink and uplink subframes. The first technology downlink subframe can be divided into a first technology downlink subframe and one or more second technology downlink subframes. Similarly, the first technology uplink subframe can be divided into a first uplink subframe and one or more second technology uplink subframes. These principles can be expanded upon and can be applied in many communication systems.

摘要翻译： 这里描述了一种先进的技术框架结构。 先进的技术框架结构可以在时间，频率或时间和频率的组合方面增强第一技术框架结构。 第二技术帧结构时分复用第二技术子帧与第一技术下行链路和上行链路子帧。 第一技术下行链路子帧可以被划分为第一技术下行链路子帧和一个或多个第二技术下行链路子帧。 类似地，第一技术上行链路子帧可以被划分为第一上行链路子帧和一个或多个第二技术上行链路子帧。 这些原则可以扩展并且可以应用于许多通信系统。