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公开(公告)号：US20110242964A1
公开(公告)日：2011-10-06
申请号：US13160041
申请日：2011-06-14
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。
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公开(公告)号：US20080233945A1
公开(公告)日：2008-09-25
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： H04Q7/20
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。
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公开(公告)号：US08594135B2
公开(公告)日：2013-11-26
申请号：US13160041
申请日：2011-06-14
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： H04J3/06
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。
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公开(公告)号：US20120140730A1
公开(公告)日：2012-06-07
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
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。
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公开(公告)号：US20090264142A1
公开(公告)日：2009-10-22
申请号：US12327732
申请日：2008-12-03
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
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。
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公开(公告)号：US09088958B2
公开(公告)日：2015-07-21
申请号：US13301549
申请日：2011-11-21
申请人： Srikanth Gummadi , Ron Porat , Todd R. Sutton
发明人： Srikanth Gummadi , Ron Porat , Todd R. Sutton
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。
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公开(公告)号：US08204442B2
公开(公告)日：2012-06-19
申请号：US12327732
申请日：2008-12-03
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。
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公开(公告)号：US20120069759A1
公开(公告)日：2012-03-22
申请号：US13301549
申请日：2011-11-21
申请人： Srikanth Gummadi , Ron Porat , Todd R. Sutton
发明人： Srikanth Gummadi , Ron Porat , Todd R. Sutton
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。
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公开(公告)号：US20090116427A1
公开(公告)日：2009-05-07
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： H04W40/00
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。
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公开(公告)号：US09178539B2
公开(公告)日：2015-11-03
申请号：US13618102
申请日：2012-09-14
申请人： Todd Sutton , Srikanth Gummadi , Walid Hosseini , Lei Wang
发明人： Todd Sutton , Srikanth Gummadi , Walid Hosseini , Lei Wang
CPC分类号： H04B1/0475 , H04B1/525 , H04L5/0007 , H04L5/003 , H04L5/0066
摘要： Methods and apparatus for reducing transmit emissions are described herein. The transmit out of band emissions in an adjacent band can be reduced while complying with existing wireless communication standards through utilization of one or more of reduced transmit bandwidth, transmit operating band offset, and channel index remapping. The transceiver can support a receive operating band substantially adjacent to a band edge. The transmit operating band can be offset from an adjacent frequency band, and can use a narrower operating band than is supported by the receiver. The transmit baseband signal can have a reduced bandwidth to reduce the amount of noise. The frequency offset can introduce a larger transition band between the transmit operating band edges and the adjacent frequency band of interest. The transceiver can remap channel assignments to compensate for the frequency offset such that the frequency offset introduced in the transmitter is transparent to channel allocation.
摘要翻译： 本文描述了用于减少发射发射的方法和装置。 通过利用减少的发送带宽，发射工作频带偏移和信道索引重映射中的一个或多个，可以减少相邻频带中的发射带外发射，同时遵守现有的无线通信标准。 收发器可以支持基本上与带边缘相邻的接收操作带。 发射工作频带可以偏离相邻频带，并且可以使用比由接收机支持的更窄的工作频带。 发射基带信号可以具有减小的带宽以减少噪声量。 频率偏移可以在发射工作频带边缘和感兴趣的相邻频带之间引入更大的转换频带。 收发器可以重新分配信道分配以补偿频率偏移，使得在发射机中引入的频率偏移对信道分配是透明的。
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