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1.发明授权公开(公告)号：US08204509B2
公开(公告)日：2012-06-19
申请号：US12439480
申请日：2007-08-30
CPC分类号： H04W72/085 , H04L1/0003 , H04L1/0006 , H04L1/0017 , H04L47/10 , H04L49/90 , H04W72/10
摘要： An air time management method and apparatus for multi-access channel networks is provided, suitable for use when terminal stations operate with adaptive modulation. A specific modulation (default modulation) is defined for each terminal station (in a planning phase. During operation, when bandwidth is to be allotted to an uplink or downlink communication, a base station checks whether the concerned terminal station is operating with a modulation more robust (e.g. less efficient) than the default modulation. In so, the base station allocates a time slot to the communication that has a duration sufficient for transmitting less than all of a particular set of data with the default modulation. If not, the base station allocates a time slot to the communication that has a duration sufficient for transmitting all of a particular set of data with the current modulation.
摘要翻译： 提供了一种用于多接入信道网络的空中时间管理方法和装置，适用于当终端工作时具有自适应调制功能。 为每个终端定义特定调制（默认调制）（在规划阶段，在运行期间，当带宽分配给上行链路或下行链路通信时，基站将检查相关终端是否以更多的调制方式运行 因此，基站为通信分配时隙，该时隙具有足够的持续时间，用于传输小于具有默认调制的特定数据集合的全部;如果不是，则基站 站点为具有足够的持续时间的通信分配时隙以用于利用当前调制来发送所有特定数据集。
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2.发明申请公开(公告)号：US20100022252A1
公开(公告)日：2010-01-28
申请号：US12439480
申请日：2007-08-30
IPC分类号： H04W72/08
CPC分类号： H04W72/085 , H04L1/0003 , H04L1/0006 , H04L1/0017 , H04L47/10 , H04L49/90 , H04W72/10
摘要： An air time management method and apparatus for multi-access channel networks is provided, suitable for use when terminal stations operate with adaptive modulation. A specific modulation (default modulation) is defined for each terminal station (in a planning phase. During operation, when bandwidth is to be allotted to an uplink or downlink communication, a base station checks whether the concerned terminal station is operating with a modulation more robust (e.g. less efficient) than the default modulation. In so, the base station allocates a time slot to the communication that has a duration sufficient for transmitting less than all of a particular set of data with the default modulation. If not, the base station allocates a time slot to the communication that has a duration sufficient for transmitting all of a particular set of data with the current modulation.
摘要翻译： 提供了一种用于多接入信道网络的空中时间管理方法和装置，适用于当终端工作时具有自适应调制功能。 为每个终端定义特定调制（默认调制）（在规划阶段，在运行期间，当带宽分配给上行链路或下行链路通信时，基站将检查相关终端是否以更多的调制方式运行 因此，基站为通信分配时隙，该时隙具有足够的持续时间，用于传输小于具有默认调制的特定数据集合的全部;如果不是，则基站 站点为具有足够的持续时间的通信分配时隙以用于利用当前调制来发送所有特定数据集。
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3.发明授权公开(公告)号：US08520684B2
公开(公告)日：2013-08-27
申请号：US12308398
申请日：2007-06-14
IPC分类号： H04L12/56
CPC分类号： H04L47/10
摘要： External packets entering a transmitting entity of a broadband wireless access system are forwarded to a receiving entity onto MAC layer connections at the wireless interface between such entities in a manner depending on the result of a packet classification performed by using a set of classification rules identified by a rule index and associated with a priority index determining the order of application of different rules to packets relating to a same service. The classification rules include both classification rules specific for data communication protocols and containing one or more protocol-specific parameters to be matched by corresponding fields in a packet being classified, and a pass-through classification rule only containing a priority index and a rule index, but no protocol-specific matching parameter, said pass through classification rule being applied to a packet not having matched a protocol-specific classification rule.
摘要翻译： 进入宽带无线接入系统的发送实体的外部分组在接收实体之间以这种实体之间的无线接口的MAC层连接转发，取决于通过使用由 规则索引并且与确定与相同服务相关的分组的不同规则的应用顺序的优先级索引相关联。 分类规则包括特定于数据通信协议的分类规则，并且包含要分类的分组中的相应字段要匹配的一个或多个协议特定参数，以及仅包含优先级索引和规则索引的直通分类规则， 但没有协议特定的匹配参数，所述通过分类规则被应用于不具有协议特定分类规则的匹配的分组。
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4.发明申请公开(公告)号：US20100284378A1
公开(公告)日：2010-11-11
申请号：US12308398
申请日：2007-06-14
IPC分类号： H04W84/02
CPC分类号： H04L47/10
摘要： External packets entering a transmitting entity of a broadband wireless access system are forwarded to a receiving entity onto MAC layer connections at the wireless interface between such entities in a manner depending on the result of a packet classification performed by using a set of classification rules identified by a rule index and associated with a priority index determining the order of application of different rules to packets relating to a same service. The classification rules include both classification rules specific for data communication protocols and containing one or more protocol-specific parameters to be matched by corresponding fields in a packet being classified, and a pass-through classification rule only containing a priority index and a rule index, but no protocol-specific matching parameter, said pass through classification rule being applied to a packet not having matched a protocol-specific classification rule.
摘要翻译： 进入宽带无线接入系统的发送实体的外部分组在接收实体之间以这种实体之间的无线接口的MAC层连接转发，取决于通过使用由 规则索引并且与确定与相同服务相关的分组的不同规则的应用顺序的优先级索引相关联。 分类规则包括特定于数据通信协议的分类规则，并且包含要分类的分组中的相应字段要匹配的一个或多个协议特定参数，以及仅包含优先级索引和规则索引的直通分类规则， 但没有协议特定的匹配参数，所述通过分类规则被应用于不具有协议特定分类规则的匹配的分组。
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5.发明授权Optimal two-leg histeresys for power control and phy mode switching control in adaptive phy mode systems 有权用于自适应植物模式系统中功率控制和植物模式切换控制的最优双腿组态公开(公告)号：US07308281B2
公开(公告)日：2007-12-11
申请号：US10287393
申请日：2002-11-05
CPC分类号： H04W52/265 , H04L1/0003 , H04L1/0009 , H04L1/0021
摘要： In radio transmission systems with point-to-point and point-to-multipoint topology a master station and one or several terminal stations are defined as well as a downstream channel from the master station to the terminal stations and an upstream channel from the terminal stations to the master station. In such systems, in order to send traffic to several terminal stations, the downstream channel is used by the master station in time division multiplexing.In some cases, the modulation type and the forward error correction, jointly called phy mode, depend on the addressed terminal. These systems are called adaptive phy mode systems.The present invention relates to adaptive phy mode systems, and it defines a power control technique for the terminal stations that also commands the phy mode switching and optimizes the system in terms of coverage, capacity and interference. In particular the terminal stations transmit with the several phy modes so that the signals are received at the master station making a performance related parameter equal. Then a hysteresis based on two different parameters (received power and available unused transmit power) is defined which regulates the phy mode switching.
摘要翻译： 在具有点对点和点对多点拓扑的无线电传输系统中，定义主站和一个或多个终端站以及从主站到终端站的下游信道以及来自终端站的上行信道 到主站。 在这样的系统中，为了向多个终端发送业务，下行信道由主站以时分复用方式使用。 在某些情况下，共同称为phy模式的调制类型和前向纠错取决于寻址终端。 这些系统称为自适应phy模式系统。 本发明涉及自适应植物模式系统，并且其定义了终端站的功率控制技术，其也命令在覆盖，容量和干扰方面对phy模式进行切换和优化系统。 特别地，终端站以多种phy模式进行传输，使得在主站处接收信号，使得性能相关参数相等。 然后定义了基于两种不同参数（接收功率和可用的未使用的发射功率）的滞后，其调节了phy模式切换。
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6.发明授权Automatic method for power control and phy mode switching control in adaptive phy mode systems 有权自适应植物模式系统中功率控制和植物模式切换控制的自动方法公开(公告)号：US07092453B2
公开(公告)日：2006-08-15
申请号：US10025454
申请日：2001-12-26
CPC分类号： H04W52/288 , H04L1/0003 , H04W52/20
摘要： The present invention relates to adaptive phy mode systems, in which the modulation type and the forward error correction, jointly called phy mode, depend on the addressed terminal. Specifically, the present invention defines a power control technique for the terminal stations that also commands the phy mode switching. In particular, the peripheral stations transmit with the several phy modes so that the signals are received at the master station making a given performance related parameter equal. Then a hysteresis is defined which regulates the phy mode switching, setting suitable power thresholds of the signal. To keep the received power close to the working point of the appropriate phy mode, the master station relies on the received power level together with information regarding the unused power, which is available in the peripheral station. Thus, interference is reduced, and link coverage and throughput are optimized.
摘要翻译： 本发明涉及自适应phy模式系统，其中调制类型和前向纠错共同称为phy模式，取决于寻址终端。 具体地，本发明定义了用于终端站的功率控制技术，其也命令了phy模式切换。 特别地，外围站用几种phy模式进行传输，使得在主站处接收信号，使给定的性能相关参数相等。 然后定义了一个调节phy模式切换的滞后，设置了信号的适当功率阈值。 为了使接收的功率保持在适当的phy模式的工作点附近，主站依赖于接收的功率水平以及关于外围站可用的未使用功率的信息。 因此，减少了干扰，并优化了链路覆盖和吞吐量。
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7.发明授权Method to improve channel estimate in broadband SIMO/MIMO cellular radio networks during abrupt interference variations 有权在突发性干扰变化期间改善宽带SIMO / MIMO蜂窝无线电网络中信道估计的方法公开(公告)号：US07756007B2
公开(公告)日：2010-07-13
申请号：US12224096
申请日：2007-02-13
IPC分类号： H04J11/00
CPC分类号： H04B7/0417 , H04B7/0439 , H04L25/0204 , H04L25/0224
摘要： A channel response matrix gathering all unknown elements for all K pilot subcarriers on links between transmitting and receiving antennas, is Least Squares (full-rank) estimated. The interference covariance matrix is estimated from the residual. The correlation of the interference covariance matrix is computed at each new symbol and compared with a threshold. If the interference is significantly changed, the interference covariance matrix is re-initialized, otherwise a running average of the interference covariance matrix is updated with the actual value. Both the updated/re-initialized interference covariance matrix and the autocorrelation matrix of the transmitted pilot sequences (stored in the receiver) are used for whitening the estimated channel matrix before submission to modal filtering for rank reduction. The original spatial and/or temporal correlations are reintroduced in the reduced-rank channel matrix by inverse whitening. After estimation in the discrete-time domain, DFT for conversion is applied for estimation in the whole frequency band.
摘要翻译： 在发射和接收天线之间的链路上收集所有K个导频子载波的所有未知元素的信道响应矩阵是估计最小二乘法（Full-rank）。 从残差估计干涉协方差矩阵。 在每个新符号处计算干涉协方差矩阵的相关性并与阈值进行比较。 如果干扰明显改变，则干扰协方差矩阵被重新初始化，否则干扰协方差矩阵的运行平均值用实际值更新。 更新/重新初始化的干扰协方差矩阵和发送的导频序列的自相关矩阵（存储在接收机中）用于在提交到等级降低的模态滤波之前对估计的信道矩阵进行增白。 原始空间和/或时间相关性通过逆白化被重新引入到降级信道矩阵中。 经离散时域估计后，用于转换的DFT用于整个频带的估计。
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8.发明授权Method and system to assign transmission bandwidth in both radio and PON ATM P-MP systems 失效在无线电和PON ATM P-MP系统中分配传输带宽的方法和系统公开(公告)号：US07016356B1
公开(公告)日：2006-03-21
申请号：US09586564
申请日：2000-06-02
IPC分类号： H04Q11/04
CPC分类号： H04Q3/0066
摘要： A method and a system are described to assign bandwidth in a point-to-multipoint ATM transmission system, comprising a centralized unit or Master Station (MS) and a plurality peripheral stations (PSs), in particular to assign transmission bandwidth on the channel from PSs to MS, by assigning transmission abilitations in defined time slots sending messages called Grants on the channel from MS to PSs. The system assigns bandwidth in the system using three different bandwidth allocation modalities, a static modality, and two separate dynamic modalities.
摘要翻译： 描述了一种方法和系统，用于在包括集中式单元或主站（MS）和多个外围站（PS））的点对多点ATM传输系统中分配带宽，特别是从信道上分配传输带宽 PS到MS，通过在定义的时隙中分配传输衰减，从MS到PS在信道上发送称为Grants的消息。 系统使用三种不同的带宽分配模式，静态模式和两种单独的动态模式来分配系统中的带宽。
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