METHOD AND APPARATUS FOR BEAMFORMING IN A WIRELESS COMMUNICATION SYSTEM
    1.
    发明申请
    METHOD AND APPARATUS FOR BEAMFORMING IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
    无线通信系统中的波束形成方法与装置

    公开(公告)号:US20120009961A1

    公开(公告)日:2012-01-12

    申请号:US12832887

    申请日:2010-07-08

    IPC分类号: H04W52/04 H04W72/04

    摘要: Varying embodiments of the present invention describes a method and apparatus for beamforming in a wireless communication system. A first embodiment is a method for beamforming in a wireless communication system, the system comprising a transmitter and a receiver. The method comprises initiating beamforming on a communication channel between the transmitter and the receiver wherein the communication channel comprises at least two transmit chains, controlling the beamforming by mapping the data stream(s) to the at least two transmit chains and controlling the scaling of the at least two transmit chains within a transmit power constraint.

    摘要翻译: 本发明的不同实施例描述了一种用于无线通信系统中波束成形的方法和装置。 第一实施例是用于在无线通信系统中波束成形的方法,该系统包括发射机和接收机。 该方法包括在发射机和接收机之间的通信信道上启动波束成形,其中通信信道包括至少两个发射链,通过将数据流映射到至少两个发射链来控制波束形成,并且控制 在发射功率约束内的至少两个发射链。

    METHOD FOR CLUSTERING MULTIPLE STATIONS
    2.
    发明申请
    METHOD FOR CLUSTERING MULTIPLE STATIONS 审中-公开
    聚集多个站点的方法

    公开(公告)号:US20110280326A1

    公开(公告)日:2011-11-17

    申请号:US13025886

    申请日:2011-02-11

    IPC分类号: H04L27/28

    摘要: A method for clustering multiple stations for a MIMO communication system comprises the steps of: assigning a plurality of stations of a MIMO communication system to a plurality of clusters, wherein each station is assigned to at least one cluster, and at least one cluster is assigned with more than one station; and assigning the plurality of clusters to a plurality of sets, wherein each cluster is assigned to a set.

    摘要翻译: 一种用于为MIMO通信系统聚集多个站的方法包括以下步骤:将MIMO通信系统的多个站分配给多个群集,其中每个站被分配给至少一个群集,并且分配至少一个群集 与多个车站; 以及将所述多个聚类分配给多个集合,其中每个集群被分配给集合。

    Multi-user Downlink and Uplink Transmission Method and Communication System Using the Same
    3.
    发明申请
    Multi-user Downlink and Uplink Transmission Method and Communication System Using the Same 审中-公开
    多用户下行链路和上行链路传输方法和通信系统

    公开(公告)号:US20110222458A1

    公开(公告)日:2011-09-15

    申请号:US13034712

    申请日:2011-02-25

    IPC分类号: H04W72/12

    CPC分类号: H04W72/121

    摘要: The present invention discloses a multi-user (MU) downlink and downlink transmission method for a communication system. The communication system includes an access point (AP) and a plurality of stations. The MU transmission method includes steps of the AP deciding a first group of stations in a first scheduling period based on a channel condition, and the AP and the first group of stations performing simultaneously transmission during a MU media access control period.

    摘要翻译: 本发明公开了一种用于通信系统的多用户(MU)下行链路和下行链路传输方法。 通信系统包括接入点(AP)和多个站。 MU传输方法包括基于信道条件在第一调度周期中决定第一组站的步骤,以及在MU媒体访问控制周期期间同时进行传输的AP和第一组站。

    Method for Generating Training Sequences and Transmitter Using the Same
    4.
    发明申请
    Method for Generating Training Sequences and Transmitter Using the Same 审中-公开
    生成训练序列的方法和使用它的发射机

    公开(公告)号:US20110013722A1

    公开(公告)日:2011-01-20

    申请号:US12836590

    申请日:2010-07-15

    IPC分类号: H04L27/00

    摘要: A method for generating training sequences in a transmitter having a plurality of transmitting antennas, includes dividing each of a plurality of symbols into a plurality of sub-symbols with a quantity equal to a quantity of the plurality of transmitting antennas, sequentially transforming a plurality of sub-symbols corresponding to same positions in each of the plurality of symbols, to generate a plurality of training data, and generating a plurality of training sequences of independent frequencies according to the plurality of training data, for forming parts of packets emitted by the plurality of transmitting antennas.

    摘要翻译: 一种用于在具有多个发射天线的发射机中产生训练序列的方法,包括将多个符号中的每一个划分成多个子符号,其数量等于所述多个发射天线的数量, 对应于多个符号中的每一个中的相同位置的子符号,以产生多个训练数据,并且根据多个训练数据生成独立频率的多个训练序列,以形成由多个训练数据发射的分组的部分 的发射天线。

    METHOD OF EXAMINING ELIGIBILITY OF A MODULATION AND CODING SCHEME FOR A COMMUNICATIONS SYSTEM
    5.
    发明申请
    METHOD OF EXAMINING ELIGIBILITY OF A MODULATION AND CODING SCHEME FOR A COMMUNICATIONS SYSTEM 审中-公开
    检查通信系统调制和编码方案的资格的方法

    公开(公告)号:US20100260249A1

    公开(公告)日:2010-10-14

    申请号:US12554993

    申请日:2009-09-08

    IPC分类号: H04Q1/20

    摘要: A method of examining the eligibility of a modulation and coding scheme includes determining a range of pseudo signal-to-noise ratio (pseudo-SNR) corresponding to a range of packet correct rate (PCR) acceptable for a transmitter, obtaining a first score of a positive acknowledgement (ACK) and a second score of a negative acknowledgement (NACK) according to the range of pseudo-SNR and the range of PCR, applying weighting to a score of a response message, which is one of an ACK message and a NACK message, and a pseudo-SNR corresponding to an immediately preceding response message when receiving the response message, for generating a pseudo-SNR corresponding to the response message, and examining the eligibility of a modulation and coding scheme in use according to the pseudo-SNR corresponding to the response message.

    摘要翻译: 检查调制和编码方案的资格的方法包括确定与发射机可接受的分组正确率(PCR)的范围相对应的伪信号噪声比(伪SNR)的范围,获得第 根据伪SNR的范围和PCR的范围的肯定确认(ACK)和否定确认(NACK)的第二分数,对作为ACK消息和ACK消息之一的响应消息的分数应用加权 NACK消息,以及当接收到响应消息时对应于紧接在前的响应消息的伪SNR,用于生成与响应消息相对应的伪SNR,并且根据伪随机数来检查正在使用的调制和编码方案的资格, SNR对应于响应消息。

    Method for Enhancing Accuracy of Rate Adaptation
    6.
    发明申请
    Method for Enhancing Accuracy of Rate Adaptation 审中-公开
    提高速率适应精度的方法

    公开(公告)号:US20100260083A1

    公开(公告)日:2010-10-14

    申请号:US12420824

    申请日:2009-04-09

    IPC分类号: H04B7/00

    摘要: The present invention provides a method for enhancing accuracy of rate adaptation in a transmitter of a wireless communication system, which comprises setting a plurality of scores indicating reliabilities of a plurality of MCSs of the wireless communication system during rate adaption procedures of the plurality of MCSs, and adjusting the plurality of scores according to a plurality of response messages indicating receiving statuses of a plurality of transmitted packets.

    摘要翻译: 本发明提供了一种用于提高无线通信系统的发射机中的速率适应精度的方法,其包括:在多个MCS的速率适配过程期间,设置指示无线通信系统的多个MCS的可靠性的多个分数, 以及根据指示多个发送分组的接收状态的多个响应消息来调整多个分数。

    APPROXIMATION METHOD FOR SIGNAL-TO-NOISE RATIO SOFT INFORMATION FOR A COMMUNICATIONS SYSTEM
    7.
    发明申请
    APPROXIMATION METHOD FOR SIGNAL-TO-NOISE RATIO SOFT INFORMATION FOR A COMMUNICATIONS SYSTEM 有权
    用于通信系统的信号噪声比率软信息的近似方法

    公开(公告)号:US20100190457A1

    公开(公告)日:2010-07-29

    申请号:US12479838

    申请日:2009-06-07

    IPC分类号: H04B17/00

    CPC分类号: H04B17/336 H04L1/0003

    摘要: An approximation method for SNR soft information for a transmitter of a communications system includes obtaining a conditional probability density function (PDF) corresponding to a response message of a transmitted packet, obtaining a PDF of a probability distribution model, and a mean and a variance of the PDF, by approximating the conditional PDF corresponding to the response message with the probability distribution model, and calculating a second mean and a second variance of a second PDF approximated to a conditional PDF of SNR corresponding to the transmitted packet according to the mean and the variance of the PDF, and a first mean and a first variance of a first PDF approximated to a conditional PDF of SNR corresponding to another transmitted packet immediately preceding the transmitted packet.

    摘要翻译: 用于通信系统的发射机的SNR软信息的近似方法包括获得与发送分组的响应消息相对应的条件概率密度函数(PDF),获得概率分布模型的PDF,以及平均和方差 PDF,通过近似具有概率分布模型的响应消息对应的条件PDF,并且根据平均值和平均值计算近似于与所发送的分组相对应的SNR的条件PDF的第二PDF的第二均值和第二方差 PDF的方差,以及近似于紧邻发送的分组之前的另一发送分组的对应于条件的条件PDF的第一PDF的第一均值和第一方差。

    Phase rotation method for reducing PAPR
    8.
    发明授权
    Phase rotation method for reducing PAPR 有权
    减少PAPR的相位旋转方法

    公开(公告)号:US08374074B2

    公开(公告)日:2013-02-12

    申请号:US12941964

    申请日:2010-11-08

    IPC分类号: H04J11/00

    CPC分类号: H04L27/2621

    摘要: A method of reducing a signal peak to average power ratio (PAPR) for a transmission channel in a wireless communication system is disclosed. The transmission channel is divided into a plurality of channel segments, and the method includes calculating PAPRs corresponding to the plurality of channel segments by a plurality of phase rotation vectors; selecting a plurality of specified phase rotation vectors from the plurality of phase rotation vectors according to the calculated PAPRs; and using one of the plurality of specified phase rotation vectors to rotate a phase of a signal to be transmitted.

    摘要翻译: 公开了一种降低无线通信系统中的传输信道的信号峰均功率比(PAPR)的方法。 传输信道被划分为多个信道段,并且该方法包括通过多个相位旋转矢量来计算与多个信道段相对应的PAPR; 根据所计算的PAPR从多个相位旋转矢量中选择多个规定的相位旋转矢量; 以及使用所述多个指定相位旋转矢量中的一个旋转要发送的信号的相位。

    Method of detecting transmission channel and related wireless communication system
    9.
    发明授权
    Method of detecting transmission channel and related wireless communication system 有权
    检测传输通道及相关无线通信系统的方法

    公开(公告)号:US08254479B2

    公开(公告)日:2012-08-28

    申请号:US12501486

    申请日:2009-07-12

    IPC分类号: H04L17/28 H04L27/00

    摘要: A method and related system of transmission channel detection condition in a wireless communication system are disclosed. The method includes receiving a symbol, performing a channel estimation operation to generate a channel estimation result according to the symbol, performing a cross correlation operation on the channel estimation result and an initial channel estimation result to generate an operation result, and determining whether the condition of the transmission channel have changed or not.

    摘要翻译: 公开了一种在无线通信系统中的传输信道检测条件的方法和相关系统。 该方法包括接收符号,执行信道估计操作以根据符号生成信道估计结果,对信道估计结果执行互相关操作和初始信道估计结果以产生操作结果,以及确定条件 的传输通道已经改变了。

    Approximation method for signal-to-noise ratio soft information for a communications system
    10.
    发明授权
    Approximation method for signal-to-noise ratio soft information for a communications system 有权
    用于通信系统的信噪比软信息的近似方法

    公开(公告)号:US08145154B2

    公开(公告)日:2012-03-27

    申请号:US12479838

    申请日:2009-06-07

    IPC分类号: H03C1/62 H04B17/00

    CPC分类号: H04B17/336 H04L1/0003

    摘要: An approximation method for SNR soft information for a transmitter of a communications system includes obtaining a conditional probability density function (PDF) corresponding to a response message of a transmitted packet, obtaining a PDF of a probability distribution model, and a mean and a variance of the PDF, by approximating the conditional PDF corresponding to the response message with the probability distribution model, and calculating a second mean and a second variance of a second PDF approximated to a conditional PDF of SNR corresponding to the transmitted packet according to the mean and the variance of the PDF, and a first mean and a first variance of a first PDF approximated to a conditional PDF of SNR corresponding to another transmitted packet immediately preceding the transmitted packet.

    摘要翻译: 用于通信系统的发射机的SNR软信息的近似方法包括获得与发送分组的响应消息相对应的条件概率密度函数(PDF),获得概率分布模型的PDF,以及平均和方差 PDF,通过近似具有概率分布模型的响应消息对应的条件PDF,并且根据平均值和平均值计算近似于与所发送的分组相对应的SNR的条件PDF的第二PDF的第二平均值和第二方差 PDF的方差,以及近似于紧邻发送的分组之前的另一发送分组的对应于条件的条件PDF的第一PDF的第一均值和第一方差。