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1.发明申请Method of multiple-antenna communication having improved utilization of channel correlations 有权多天线通信方法具有改善信道相关性的利用公开(公告)号：US20100040155A1
公开(公告)日：2010-02-18
申请号：US12228570
申请日：2008-08-14
IPC分类号： H04L27/28
CPC分类号： H04B7/0413 , H04B7/0669 , H04L1/0009 , H04L1/0643 , H04L1/0675 , H04L25/0204 , H04L2025/03426 , H04L2025/03611
摘要： A MIMO transmission scheme is provided which provides some advantages of the Alamouti code but which can be adapted so as to provide enhanced performance for a given amount of antenna correlation. A block of complex scalar input symbols is mapped to a block-code matrix which is transmitted as a spacetime signal matrix from an array of two or more antennas. The block-code matrix is assembled by combining input data with specified dispersion matrices. Each of the dispersion matrices is determined, in part, by an adjustable parameter which relates to a degree of beam-forming behavior by the transmission antenna array.
摘要翻译： 提供了MIMO传输方案，其提供了Alamouti码的一些优点，但是可以适配，以便为给定量的天线相关性提供增强的性能。 将复数标量输入符号的块映射到从两个或更多个天线的阵列作为时空信号矩阵发送的块码矩阵。 通过将输入数据与指定的色散矩阵组合来组合块码矩阵。 每个色散矩阵部分地由与发射天线阵列的波束形成行为程度有关的可调节参数确定。
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2.发明申请ALLOCATING CHANNELS FOR REAL-TIME TRAFFIC TRANSMISSIONS OF WIRELESS PACKET DATA AMONG MULTIPLE USERS 审中-公开用于多用户无线数据包实时传输的分配通道公开(公告)号：US20130286968A1
公开(公告)日：2013-10-31
申请号：US13876291
申请日：2007-01-26
IPC分类号： H04W72/04
CPC分类号： H04W72/0453 , H04L5/023 , H04L27/2608 , H04W28/22 , H04W52/42 , H04W72/1226
摘要： A method and an apparatus is provided for allocating channels in a multi-user environment for transmitting real-time data traffic in a wireless packet data network. The method includes determining an a priori data rate per channel for each of a plurality of mobile stations based on channel state information associated with a plurality of frequency channels associated with the plurality of mobile stations and a preliminary assumption of a uniform power distribution among the plurality of frequency channels at a transmitter. The method also includes allocating a unique frequency channel from said plurality of frequency channels to at least one of the plurality of mobile stations based on said a priori data rate per channel for each of the plurality of mobile stations.
摘要翻译： 提供了一种用于在多用户环境中分配信道以在无线分组数据网络中传送实时数据业务的方法和装置。 该方法包括：基于与多个移动站相关联的多个频率信道相关联的信道状态信息，确定多个移动站中的每一个的每个信道的先验数据速率，以及在多个移动站中的均匀功率分配的初步假设 的发射机的频道。 该方法还包括基于所述多个移动台中的每一个的每个信道的先验数据速率，将所述多个频率信道中的唯一频率信道分配给所述多个移动站中的至少一个。
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公开(公告)号：US07136666B2
公开(公告)日：2006-11-14
申请号：US10290619
申请日：2002-11-08
摘要： A new and significantly improved approach for controlling the transmission power in the uplink direction of a CDMA-based radio system is disclosed, which provides a transmission power control even with regard to an overall link quality substantially involving a real time reaction on changes in the environment. A CDMA-based radio system is described which comprises an inner power control loop for adjusting the transmission power between a user equipment and at least one base station based on the signal to interference ratio to ensure that the signal to interference ratio is similar to a target signal to interference ratio at least within a predefined range and an outer power control loop for adjusting the target signal to interference ratio based on the link quality to ensure a target link quality necessary for fulfilling a predetermined quality of service in view of link quality at least within a predefined range. The outer power control loop is provided by establishing a first outer power control loop between the at least one base station and the user equipment and by establishing a second outer power control loop between an associated serving radio controller and the at least one base station.
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4.发明授权Method of controlling quality of service of CDMA system using dynamic adjustment of parameters representing transmitting properties concerning quality of service 失效使用动态调整表示与服务质量相关的传输属性的参数来控制CDMA系统的服务质量的方法公开(公告)号：US07106700B2
公开(公告)日：2006-09-12
申请号：US10004687
申请日：2001-12-05
CPC分类号： H04L1/0068 , H04B17/309 , H04L1/0002 , H04L1/08 , H04L1/20 , H04W52/12 , H04W52/16 , H04W52/26 , H04W52/282 , H04W52/32
摘要： Disclosed is a method related to the controlling of quality of services of a CDMA-based-System. It is provides an improved control mechanism for the quality of services in a CDMA-System, in particular by providing a controlling means apt to assign the target signal to interference ratio, the static rate matching factor and the power-offset dynamically, especially adapted to be used for UMTS-Systems. Proposed is a dynamic quality control for adjusting quality of services of a CDMA-based System transmitting a plurality of different services between the system and a user equipment by using at least one data channel (DPDCH) with the services multiplexed and rate matching technique applied and an associated control channel (DPCCH) wherein parameters representing transmitting properties concerning the quality of service, advantageously representing a signal to interference ratio (SIR) for the control channel (DPCCH), a static rate matching factor (SRF) for each service and a power-offset (G) between the control channel (DPCCH) and the data channel (DPDCH) are derived for each service to achieve desired quality of services, during an installation process based on default quality (1, 2) requirements and during an operating condition dynamically in dependence of quality estimates (1, 5) performed on each of that services during data transmission.
摘要翻译： 公开了与基于CDMA的系统的服务质量控制有关的方法。 它为CDMA系统中的服务质量提供了改进的控制机制，特别是通过提供一种适于将目标信号与干扰比，静态速率匹配因子和功率偏移动态分配的控制装置，特别适用于 用于UMTS系统。 提出了一种用于调整基于CDMA的系统的服务质量的动态质量控制，其通过使用应用了服务复用和速率匹配技术的至少一个数据信道（DPDCH）在系统和用户设备之间传送多个不同的服务，并且 相关联的控制信道（DPCCH），其中表示关于服务质量的传输属性的参数有利地表示用于控制信道（DPCCH）的信号干扰比（SIR），用于每个服务的静态速率匹配因子（SRF）和功率 对于每个服务导出控制信道（DPCCH）和数据信道（DPDCH）之间的偏移（G），以在基于默认质量（1,2）要求的安装过程期间和在操作条件期间实现期望的服务质量 动态地依赖于在数据传输期间对每个服务执行的质量估计（1,5）。
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5.发明授权Method and apparatus for preventing a false pass of a cyclic redundancy check at a receiver during weak receiving conditions in a wireless communications system 有权一种用于在无线通信系统中的弱接收状态期间防止在接收机处的循环冗余校验错误通过的方法和装置公开(公告)号：US07392459B2
公开(公告)日：2008-06-24
申请号：US10823948
申请日：2004-04-14
CPC分类号： H04L1/0066 , H04L1/0054 , H04L1/0061
摘要： At the receiver in a wireless communications system, the likelihood of a false CRC pass that can occur when a weak received signal produces an all ZERO output from a convolutional or a turbo decoder is minimized. To prevent an all ZERO output, a convolutional decoder selects from among those determined equally most likely transmitted sequences of bits in a data block one that has a weight greater than the one having the minimum weight. A turbo decoder selects a ONE rather than a ZERO as the value of a transmitted bit in a data block when for that bit a bit value of a ZERO and a ONE are determined to be equally likely.
摘要翻译： 在无线通信系统中的接收机处，当弱接收信号产生卷积或turbo解码器的全零输出时可能发生的错误CRC通过的可能性被最小化。 为了防止所有ZERO输出，卷积解码器从具有权重大于具有最小权重的数据块的数据块中确定的同样最可能发送的比特序列中选择的那些。 turbo解码器选择一个而不是一个零作为数据块中发送的比特的值，而对于该比特，ZERO和ONE的比特值被确定为同样可能。
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6.发明授权Method of multiple-antenna communication having improved utilization of channel correlations 有权多天线通信方法具有改善信道相关性的利用公开(公告)号：US08477864B2
公开(公告)日：2013-07-02
申请号：US12228570
申请日：2008-08-14
CPC分类号： H04B7/0413 , H04B7/0669 , H04L1/0009 , H04L1/0643 , H04L1/0675 , H04L25/0204 , H04L2025/03426 , H04L2025/03611
摘要： A MIMO transmission scheme is provided which provides some advantages of the Alamouti code but which can be adapted so as to provide enhanced performance for a given amount of antenna correlation. A block of complex scalar input symbols is mapped to a block-code matrix which is transmitted as a spacetime signal matrix from an array of two or more antennas. The block-code matrix is assembled by combining input data with specified dispersion matrices. Each of the dispersion matrices is determined, in part, by an adjustable parameter which relates to a degree of beam-forming behavior by the transmission antenna array.
摘要翻译： 提供了MIMO传输方案，其提供了Alamouti码的一些优点，但是可以适配，以便为给定量的天线相关性提供增强的性能。 将复数标量输入符号的块映射到从两个或更多个天线的阵列作为时空信号矩阵发送的块码矩阵。 通过将输入数据与指定的色散矩阵组合来组合块码矩阵。 每个色散矩阵部分地由与发射天线阵列的波束形成行为程度有关的可调节参数确定。
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公开(公告)号：US08270541B2
公开(公告)日：2012-09-18
申请号：US12273907
申请日：2008-11-19
IPC分类号： H04L27/06
摘要： The invention relates to a method for recovering a bit stream from a radio signal (2, 3, 4) received in a first receiving station (S1) and at least one further receiving station (S2, S3), the method comprising the steps of: in each of the receiving stations (S1 to S3), demodulating the received radio signal (2, 3, 4) to form a demodulated data stream (B, B′, B″), transferring the at least one demodulated data stream (B′, B″) from the at least one further receiving station (S2, S3) to the first receiving station (S1), in the first receiving station (S1), generating a combined data stream from the demodulated data streams (B, B′, B″) of each of the receiving stations (S1 to S3), and performing a hard decision on the combined data stream for recovering the bit stream.
摘要翻译： 本发明涉及一种用于从在第一接收站（S1）和至少一个另外的接收站（S2，S3）中接收的无线电信号（2,3,4）恢复比特流的方法，所述方法包括以下步骤： ：在每个接收站（S1至S3）中，解调所接收的无线电信号（2,3,4）以形成解调数据流（B，B'，B“），传送所述至少一个解调数据流 B'，B“）从第一接收站（S1）中的至少一个另外的接收站（S2，S3）到第一接收站（S1），从解调数据流（B， B'，B“），并且对用于恢复比特流的组合数据流执行硬判决。
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公开(公告)号：US20090135966A1
公开(公告)日：2009-05-28
申请号：US12273907
申请日：2008-11-19
IPC分类号： H04L27/06
摘要： The invention relates to a method for recovering a bit stream from a radio signal (2, 3, 4) received in a first receiving station (S1) and at least one further receiving station (S2, S3), the method comprising the steps of: in each of the receiving stations (S1 to S3), demodulating the received radio signal (2, 3, 4) to form a demodulated data stream (B, B′, B″), transferring the at least one demodulated data stream (B′, B″) from the at least one further receiving station (S2, S3) to the first receiving station (S1), in the first receiving station (S1), generating a combined data stream from the demodulated data streams (B, B′, B″) of each of the receiving stations (S1 to S3), and performing a hard decision on the combined data stream for recovering the bit stream.
摘要翻译： 本发明涉及一种用于从在第一接收站（S1）和至少一个另外的接收站（S2，S3）中接收的无线电信号（2,3,4）恢复比特流的方法，所述方法包括以下步骤： ：在每个接收站（S1至S3）中，解调所接收的无线电信号（2,3,4）以形成解调数据流（B，B'，B“），传送至少一个解调数据流 （S1）从所述至少一个另外的接收站（S2，S3）向所述第一接收站（S1）发送（B'，B“），从所述第一接收站（S1）生成来自所解调的数据流的组合数据流 B，B'，B“），并且对用于恢复比特流的组合数据流执行硬判决。
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公开(公告)号：US07522682B2
公开(公告)日：2009-04-21
申请号：US11025666
申请日：2004-12-29
IPC分类号： H03D1/04
CPC分类号： H04L1/20
摘要： The present invention provides a method and an apparatus for measuring a reception quality on a wireless communication link to a receiver by removing a bias in a plurality of received pilot symbols and obtaining a channel estimate for a channel, such as a wireless propagation channel, after substantially removing the bias. For a receiver, such as a rake receiver disposed in a base transceiver station, a bias removal module may extract a plurality of coefficients from a wireless propagation channel to remove a bias before a detector may receive the plurality of pilot symbols in the data stream to determine an error rate of the received pilot symbols where channel estimation is based on the received pilot symbols. In this manner, a systematic flaw in a link quality measurement based on an error rate of the received pilot symbols may be resolved for wireless communication systems.
摘要翻译： 本发明提供一种方法和装置，用于通过去除多个接收到的导频符号中的偏置并且在诸如无线传播信道之后获得诸如无线传播信道的信道的信道估计之后，在到接收机的无线通信链路上测量接收质量，之后 基本上去除偏压。 对于诸如设置在基地收发台中的耙式接收机的接收机，偏置消除模块可以从无线传播信道提取多个系数以消除偏差，之后检测器可以将数据流中的多个导频符号接收到 确定所接收的导频符号的误码率，其中信道估计基于所接收的导频符号。 以这种方式，可以针对无线通信系统解决基于接收到的导频符号的错误率的链路质量测量中的系统缺陷。
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10.发明授权Method for communication traffic load balancing between cells of a communication system 失效通信系统单元之间通信流量负载平衡的方法公开(公告)号：US06944463B2
公开(公告)日：2005-09-13
申请号：US10366786
申请日：2003-02-14
CPC分类号： H04W16/06
摘要： A method is proposed for communication traffic load balancing between cells of a communication system which are differently loaded. An evaluation factor is determined by a predefined mapping function for each of a home cell k and at least one other cell l, each evaluation factor being a measure of the load on the respective cells. At least one comparing factor is determined with respect to the home cell evaluation factor by comparing the evaluation factor of the home cell with those of the at least one further cells. Each of the comparing factors has a corresponding traffic load penalty factor. The traffic load penalty factors are a measure of load difference and/or transmission quality between the cells. This assignment is repeated in a loop such that current traffic load penalty factors are determined depending on predefined traffic load penalty factors and/or forerunner traffic load penalty factors determined in earlier cycles of the loop. The current traffic load penalty factors are used to evaluate unused transmission capacity of a cell and/or cells in comparison to the home cell and/or a time at which at least a part of the traffic of the home cell is handed over to at least one cell with unused capacity.
摘要翻译： 提出了一种用于在不同加载的通信系统的小区之间的通信业务负载平衡的方法。 评估因子由家庭小区k和至少一个其他小区1中的每一个的预定义映射函数确定，每个评估因子是各个小区上的负载的量度。 通过将家庭细胞的评估因子与至少一个其它细胞的评估因子进行比较，相对于家庭细胞评价因子确定至少一个比较因子。 每个比较因子都有相应的交通负荷损失因子。 业务负荷损失因子是小区之间负载差异和/或传输质量的度量。 这种分配在循环中重复，使得根据在循环的早期循环中确定的预定义的业务负载损失因子和/或先行者业务负载损失因子来确定当前业务负载损失因子。 当前的业务负荷损失因子用于评估与家庭小区相比的小区和/或小区的未使用的传输容量和/或家庭小区的至少一部分业务被切换到至少 一个电池未使用的容量。
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