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1.发明授权公开(公告)号：US08644288B2
公开(公告)日：2014-02-04
申请号：US12183216
申请日：2008-07-31
申请人： Fan Wang , Stanley J. Benes , Amitabha Ghosh , Chandrasekar Sankaran , Timothy J. Wilson , Fei Tong , Nick W. Whinnett
发明人： Fan Wang , Stanley J. Benes , Amitabha Ghosh , Chandrasekar Sankaran , Timothy J. Wilson , Fei Tong , Nick W. Whinnett
CPC分类号： H04B7/0452
摘要： A method, system and communication network for transmitting information signals via uplink (UL) collaborative SDMA, in a wireless communication system. Base station receiver estimates a channel gain associated with the transmission path(s) of each user and keeps a matrix of normalized covariance, between users. Based on the estimated channel gain and the normalized covariance, ULS utility is able to compute channel capacity. Based on capacity estimates of (1) the multiplexed user signals and (2) the individual user signals, signals are either multiplexed for UL SDMA or are transmitted individually. An optimal selection of multiplexed signals may be based upon: (1) a cross user interface measurement; and (2) a selection mechanism based on eigen-decomposition techniques. The ULS utility enables a UL scheduler to pair information signals with clear spatial distinction and minimal correlation, based on capacity evaluations.
摘要翻译： 一种用于在无线通信系统中经由上行链路（UL）协作SDMA发送信息信号的方法，系统和通信网络。 基站接收机估计与每个用户的传输路径相关联的信道增益，并在用户之间保持归一化协方差矩阵。 基于估计的信道增益和归一化协方差，ULS实用程序能够计算信道容量。 基于（1）多路复用用户信号和（2）个体用户信号的容量估计，信号被多路复用用于UL SDMA或单独发送。 复用信号的最佳选择可以基于：（1）跨用户接口测量; 和（2）基于特征分解技术的选择机制。 ULS实用程序使得UL调度器能够基于容量评估将信息信号与清晰的空间区别和最小的相关性进行配对。
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2.发明申请公开(公告)号：US20100029288A1
公开(公告)日：2010-02-04
申请号：US12183216
申请日：2008-07-31
申请人： Fan Wang , Stanley J. Benes , Amitabha Ghosh , Chandrasekar Sankaran , Timothy J. Wilson , Fei Tong , Nick W. Whinnett
发明人： Fan Wang , Stanley J. Benes , Amitabha Ghosh , Chandrasekar Sankaran , Timothy J. Wilson , Fei Tong , Nick W. Whinnett
CPC分类号： H04B7/0452
摘要： A method, system and communication network for transmitting information signals via uplink (UL) collaborative SDMA, in a wireless communication system. Base station receiver estimates a channel gain associated with the transmission path(s) of each user and keeps a matrix of normalized covariance, between users. Based on the estimated channel gain and the normalized covariance, ULS utility is able to compute channel capacity. Based on capacity estimates of (1) the multiplexed user signals and (2) the individual user signals, signals are either multiplexed for UL SDMA or are transmitted individually. An optimal selection of multiplexed signals may be based upon: (1) a cross user interface measurement; and (2) a selection mechanism based on eigen-decomposition techniques. The ULS utility enables a UL scheduler to pair information signals with clear spatial distinction and minimal correlation, based on capacity evaluations.
摘要翻译： 一种用于在无线通信系统中经由上行链路（UL）协作SDMA发送信息信号的方法，系统和通信网络。 基站接收机估计与每个用户的传输路径相关联的信道增益，并在用户之间保持归一化协方差矩阵。 基于估计的信道增益和归一化协方差，ULS实用程序能够计算信道容量。 基于（1）多路复用用户信号和（2）个体用户信号的容量估计，信号被多路复用用于UL SDMA或单独发送。 复用信号的最佳选择可以基于：（1）跨用户接口测量; 和（2）基于特征分解技术的选择机制。 ULS实用程序使得UL调度器能够基于容量评估将信息信号与清晰的空间区别和最小的相关性进行配对。
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公开(公告)号：US08055198B2
公开(公告)日：2011-11-08
申请号：US12198910
申请日：2008-08-27
CPC分类号： H04L5/0066 , H04L1/0003 , H04L1/0009 , H04L1/0016 , H04L1/0026 , H04L5/0007 , H04L5/0046 , H04L27/0008
摘要： An apparatus and method to provide uplink interference control in a WiMAX communication system includes a step 302 of receiving a downlink channel quality indication from an MS. A next step 304 selecting a modulation product ratio modification parameter in response to the channel quality indication. A next step 306 includes modifying a modulation product ratio by the modification parameter. A next step 308 includes mapping the modified modulation product ratio against a table of modulation coding schemes. A next step 312 includes applying the mapped modulation coding scheme.
摘要翻译： 在WiMAX通信系统中提供上行链路干扰控制的装置和方法包括从MS接收下行链路信道质量指示的步骤302。 下一步骤304响应于信道质量指示来选择调制产品比率修改参数。 下一步骤306包括通过修改参数修改调制产物比率。 下一步骤308包括将修改的调制产品比与映射调制编码方案表进行映射。 下一步骤312包括应用映射的调制编码方案。
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公开(公告)号：US20100056057A1
公开(公告)日：2010-03-04
申请号：US12198910
申请日：2008-08-27
CPC分类号： H04L5/0066 , H04L1/0003 , H04L1/0009 , H04L1/0016 , H04L1/0026 , H04L5/0007 , H04L5/0046 , H04L27/0008
摘要： An apparatus and method to provide uplink interference control in a WiMAX communication system includes a step 302 of receiving a downlink channel quality indication from an MS. A next step 304 selecting a modulation product ratio modification parameter in response to the channel quality indication. A next step 306 includes modifying a modulation product ratio by the modification parameter. A next step 308 includes mapping the modified modulation product ratio against a table of modulation coding schemes. A next step 312 includes applying the mapped modulation coding scheme.
摘要翻译： 在WiMAX通信系统中提供上行链路干扰控制的装置和方法包括从MS接收下行链路信道质量指示的步骤302。 下一步骤304响应于信道质量指示来选择调制产品比率修改参数。 下一步骤306包括通过修改参数修改调制产物比率。 下一步骤308包括将修改的调制产品比与映射调制编码方案表进行映射。 下一步骤312包括应用映射的调制编码方案。
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公开(公告)号：US08199713B2
公开(公告)日：2012-06-12
申请号：US12611207
申请日：2009-11-03
IPC分类号： H04W4/00
CPC分类号： H04W16/12 , H04W72/082
摘要： An apparatus and method for fractional frequency reuse in a communication system. The method includes a first step 400 of partitioning a sub-frame into resource partitions, wherein at least one resource partition has frequency reuse of one and all other resource partitions have frequency reuse greater than one. A next step 408 includes scheduling resources for a mobile station in a sector in each resource partition used by that sector.
摘要翻译： 一种用于通信系统中分数频率重用的装置和方法。 该方法包括将子帧划分成资源分区的第一步骤400，其中至少一个资源分区具有一个频率重用，所有其他资源分区的频率重用大于1。 下一步骤408包括为该扇区使用的每个资源分区中的扇区中的移动台调度资源。
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公开(公告)号：US20110103365A1
公开(公告)日：2011-05-05
申请号：US12611207
申请日：2009-11-03
CPC分类号： H04W16/12 , H04W72/082
摘要： An apparatus and method for fractional frequency reuse in a communication system. The method includes a first step 400 of partitioning a sub-frame into resource partitions, wherein at least one resource partition has frequency reuse of one and all other resource partitions have frequency reuse greater than one. A next step 408 includes scheduling resources for a mobile station in a sector in each resource partition used by that sector.
摘要翻译： 一种用于通信系统中分数频率重用的装置和方法。 该方法包括将子帧划分成资源分区的第一步骤400，其中至少一个资源分区具有一个频率重用，所有其他资源分区的频率重用大于1。 下一步骤408包括为该扇区使用的每个资源分区中的扇区中的移动台调度资源。
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公开(公告)号：US20080081671A1
公开(公告)日：2008-04-03
申请号：US11538432
申请日：2006-10-03
申请人： Fan Wang , Stanley J. Benes , Amitava Ghosh , Jun Tan
发明人： Fan Wang , Stanley J. Benes , Amitava Ghosh , Jun Tan
CPC分类号： H01Q3/30 , H01Q3/2605 , H04B7/0634 , H04B7/0636 , H04L5/14 , H04L25/0204 , H04L25/0228 , H04L25/03343 , H04L2025/03426
摘要： A subscriber unit (104) with multiple receive antennas (160, 162) and a single transmit antenna (160) derives beamforming weights to be used at a base station (102) with multiple transmitting antennas (602, 604, 606, and 608). The downlink beamforming weights are derived at the subscriber unit (104) from a prior downlink transmission from the base station (102) to the subscriber device (104) and an uplink sounding signal is used to carry derived downlink beam forming weights to the base station (102). Downlink antenna specific pilots (without weight) are used at the subscriber device (104) to determine the beamforming weights. Decimated sounding signals, where the number of sounding subcarriers is al least the same as the number of antennas at the base station (102), allow multiple users to sound at the same time.
摘要翻译： 具有多个接收天线（160,162）和单个发射天线（160）的用户单元（104）导出要在具有多个发射天线（602,604,606和608）的基站（102）处使用的波束成形权重， 。 下行链路波束形成权重在订户单元（104）处从从基站（102）到用户设备（104）的先前下行链路传输导出，并且上行链路探测信号用于将导出的下行链路波束形成权重携带到基站 （102）。 在订户设备（104）处使用下行链路天线特定导频（无权重）来确定波束成形权重。 其中发声子载波的数量与基站（102）上的天线数量至少相同的抽取的探测信号允许多个用户同时发声。
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公开(公告)号：US07747225B2
公开(公告)日：2010-06-29
申请号：US11538432
申请日：2006-10-03
申请人： Fan Wang , Stanley J. Benes , Amitava Ghosh , Jun Tan
发明人： Fan Wang , Stanley J. Benes , Amitava Ghosh , Jun Tan
CPC分类号： H01Q3/30 , H01Q3/2605 , H04B7/0634 , H04B7/0636 , H04L5/14 , H04L25/0204 , H04L25/0228 , H04L25/03343 , H04L2025/03426
摘要： A subscriber unit (104) with multiple receive antennas (160, 162) and a single transmit antenna (160) derives beamforming weights to be used at a base station (102) with multiple transmitting antennas (602, 604, 606, and 608). The downlink beamforming weights are derived at the subscriber unit (104) from a prior downlink transmission from the base station (102) to the subscriber device (104) and an uplink sounding signal is used to carry derived downlink beam forming weights to the base station (102). Downlink antenna specific pilots (without weight) are used at the subscriber device (104) to determine the beamforming weights. Decimated sounding signals, where the number of sounding subcarriers is at least the same as the number of antennas at the base station (102), allow multiple users to sound at the same time.
摘要翻译： 具有多个接收天线（160,162）和单个发射天线（160）的用户单元（104）导出要在具有多个发射天线（602,604,606和608）的基站（102）处使用的波束成形权重， 。 下行链路波束形成权重在订户单元（104）处从从基站（102）到用户设备（104）的先前下行链路传输导出，并且上行链路探测信号用于将导出的下行链路波束形成权重携带到基站 （102）。 在订户设备（104）处使用下行链路天线特定导频（无权重）来确定波束成形权重。 抽取的探测信号，其中发声子载波的数量与基站（102）上的天线数量至少相同，允许多个用户同时发声。
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9.发明授权公开(公告)号：US06912395B2
公开(公告)日：2005-06-28
申请号：US09962426
申请日：2001-09-25
摘要： The present invention is a communication network (100) and method for monitoring location capabilities of mobile stations (102) in a database (120) of a communication network. Initially, the network receives an identification number from a mobile station (102). If the database (120) does not include a location capability corresponding to the identification number, then a processor (118) requests the location capability from the mobile station (102) and stores the requested location capability in the database (120). The location capability includes one or more of the following capabilities: an autonomous mode capability, an assisted mode capability and a legacy mode capability. To retrieve an entry from the database (120), the network reads the location capability corresponding to the identification number from the database (120). The network then assembles an assistance message based on the location capability of the mobile station (102) and transmits the assistance message to the mobile station (102).
摘要翻译： 本发明是用于监视通信网络的数据库（120）中的移动台（102）的定位能力的通信网络（100）和方法。 最初，网络从移动台（102）接收识别号码。 如果数据库（120）不包括与识别号码相对应的位置能力，则处理器（118）从移动站（102）请求定位能力，并将所请求的位置能力存储在数据库（120）中。 位置能力包括以下能力中的一个或多个：自主模式能力，辅助模式能力和传统模式能力。 为了从数据库（120）检索条目，网络从数据库（120）读取与标识号相对应的位置能力。 然后，网络基于移动站（102）的位置能力来组合辅助消息，并将该帮助消息发送到移动站（102）。
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公开(公告)号：US20090007246A1
公开(公告)日：2009-01-01
申请号：US11769814
申请日：2007-06-28
IPC分类号： G06F7/04
CPC分类号： H04L63/20
摘要： A method and wireless device select a set of secure network connections (230) between a wireless device (108) in a wireless communication system and a target destination system (238). A first security assessment (708) associated with each of a plurality of base station connections associated with respective each of a plurality of base stations (116) available for wireless communications with the wireless device (108) is performed. A second security assessment (716) associated with each of a plurality of subsequent network connections available between the plurality of base stations (116) and a target destination system (238) is performed. A set of base station connections from the plurality of base station connections are prioritized according to predetermined security criteria associated with the wireless device (108). A set of subsequent network connections from the plurality of subsequent network connections (230) are prioritized according to predetermined security criteria associated with the wireless device (108).
摘要翻译： 方法和无线设备选择无线通信系统中的无线设备（108）与目标目的地系统（238）之间的一组安全网络连接（230）。 执行与可用于与无线设备（108）的无线通信的多个基站（116）中的每一个相关联的多个基站连接中的每一个相关联的第一安全评估（708）。 执行与多个基站（116）和目标目的地系统（238）之间可用的多个后续网络连接中的每一个相关联的第二安全评估（716）。 根据与无线设备（108）相关联的预定安全标准，优先考虑来自多个基站连接的一组基站连接。 根据与无线设备（108）相关联的预定安全标准，来自多个后续网络连接（230）的一组后续网络连接被优先化。
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