METHOD FOR INTERFERENCE ALIGNMENT IN WIRELESS NETWORK
    11.
    发明申请
    METHOD FOR INTERFERENCE ALIGNMENT IN WIRELESS NETWORK 有权
    无线网络干扰对齐方法

    公开(公告)号:US20120289267A1

    公开(公告)日:2012-11-15

    申请号:US13575285

    申请日:2011-02-01

    IPC分类号: H04B15/00

    摘要: A method for interference alignment in wireless network having 3 transmitters and 3 receivers which are equipped with M antennas is provided. The method comprising: transmitting, performed by each of the 3 transmitters, a pilot signal known to the 3 receivers; estimating, performed by each of the 3 receivers, each channel from transmitter; transmitting, performed by each of the 3 receivers, feedback information to target transmitter; and determining, performed by transmitter 2 and transmitter 3, a precoding vector; wherein a degree of freedom(DoF) of a transmitter 1 is (M/2−α), a DoF of the transmitter 2 or the transmitter 3 is M/2.

    摘要翻译: 提供了一种具有3个发射机和3个接收机的无线网络中的配备M个天线的干扰对准方法。 该方法包括:由3个发射机中的每一个发送由3个接收机已知的导频信号; 估计,由3个接收机中的每一个执行,来自发射机的每个信道; 由3个接收机中的每一个发送,向目标发射机发送反馈信息; 并由发射机2和发射机3确定预编码向量; 其中发射机1的自由度(DoF)为(M / 2-α),发射机2或发射机3的DoF为M / 2。

    METHOD AND APPARATUS FOR PERFORMING SPACE DIVISION MULTIPLE ACCESS IN A WIRELESS COMMUNICATION NETWORK
    12.
    发明申请
    METHOD AND APPARATUS FOR PERFORMING SPACE DIVISION MULTIPLE ACCESS IN A WIRELESS COMMUNICATION NETWORK 审中-公开
    在无线通信网络中执行空间分段多路访问的方法和装置

    公开(公告)号:US20090023467A1

    公开(公告)日:2009-01-22

    申请号:US12175319

    申请日:2008-07-17

    IPC分类号: H04B7/00

    摘要: A method and apparatus for performing space division multiple access in wireless communications are disclosed. After the receipt of a set of training data from a base station, an estimated channel state information (CSI) is then generated by a mobile station. The CSI is subsequently quantized. The mobile station then determines whether or not the quantized CSI falls within a set of thresholds. If the quantized CSI falls within the set of thresholds, the mobile then sends feedback information to the base station to allow the base station to consider the mobile station as one of the mobile station candidates available for data communications. Otherwise, if the quantized CSI falls outside the set of thresholds, the mobile station then discards the quantized CSI.

    摘要翻译: 公开了一种在无线通信中执行空分多址的方法和装置。 在从基站接收到一组训练数据之后,由移动台生成估计的信道状态信息(CSI)。 CSI随后量化。 然后,移动台确定量化的CSI是否落在一组阈值内。 如果量化的CSI落在阈值集合内,则移动台然后向基站发送反馈信息,以允许基站将移动台视为可用于数据通信的移动台候选者之一。 否则,如果量化的CSI落在阈值集合之外,则移动站然后丢弃量化的CSI。

    Method and apparatus for multi-input multi-output downlink transmission control
    13.
    发明授权
    Method and apparatus for multi-input multi-output downlink transmission control 有权
    多输入多输出下行链路传输控制的方法和装置

    公开(公告)号:US08611244B2

    公开(公告)日:2013-12-17

    申请号:US13278645

    申请日:2011-10-21

    IPC分类号: H04L12/26

    摘要: A Multi-Input Multi-Output (MIMO) downlink transmission control method that is related to communications technologies is disclosed in embodiments of the present invention. The method includes: obtaining a channel fading change rate and a feedback delay of a user; calculating out a closed-loop MIMO throughput gain according to the channel fading change rate and the feedback delay; and determining a downlink transmission mode according to the closed-loop MIMO throughput gain, wherein the downlink transmission mode includes a closed-loop mode or an open-loop mode. A MIMO downlink transmission control apparatus is also disclosed.

    摘要翻译: 在本发明的实施例中公开了与通信技术相关的多输入多输出(MIMO)下行链路传输控制方法。 该方法包括:获得用户的信道衰落变化率和反馈延迟; 根据信道衰落变化率和反馈延迟计算闭环MIMO吞吐量增益; 以及根据所述闭环MIMO吞吐量增益确定下行链路传输模式,其中所述下行链路传输模式包括闭环模式或开环模式。 还公开了MIMO下行链路传输控制装置。

    FEEDBACK METHOD FOR VIRTUAL MIMO TRANSMISSION IN WIRELESS AD-HOC COMMUNICATION SYSTEM
    14.
    发明申请
    FEEDBACK METHOD FOR VIRTUAL MIMO TRANSMISSION IN WIRELESS AD-HOC COMMUNICATION SYSTEM 有权
    用于无线AD-HOC通信系统中的虚拟MIMO传输的反馈方法

    公开(公告)号:US20130279613A1

    公开(公告)日:2013-10-24

    申请号:US13868651

    申请日:2013-04-23

    IPC分类号: H04B7/04

    CPC分类号: H04B7/0417 H04B7/024

    摘要: A method for communicating between first multiple nodes and second multiple nodes in a wireless communication system is disclosed. The method includes the steps of performing a first local sharing procedure for a virtual MIMO (Multiple Input Multiple Output) feedback among the second multiple nodes during a first predetermined time; performing feedback of channel status information from the second multiple nodes to the first multiple nodes during a integer multiple of a second predetermined time; and performing a second local sharing procedure for the virtual MIMO feedback among the first multiple nodes during the first predetermined time.

    摘要翻译: 公开了一种用于在无线通信系统中的第一多个节点和第二个多个节点之间进行通信的方法。 该方法包括以下步骤:在第一预定时间期间在第二多个节点之间执行虚拟MIMO(多输入多输出)反馈的第一本地共享过程; 在第二预定时间的整数倍期间执行从第二多个节点到第一多个节点的信道状态信息的反馈; 以及在所述第一预定时间期间对所述第一多个节点之间的所述虚拟MIMO反馈执行第二本地共享过程。

    MIMO PRECODING ENABLING SPATIAL MULTIPLEXING, POWER ALLOCATION AND ADAPTIVE MODULATION AND CODING
    15.
    发明申请
    MIMO PRECODING ENABLING SPATIAL MULTIPLEXING, POWER ALLOCATION AND ADAPTIVE MODULATION AND CODING 审中-公开
    MIMO预处理启用空间多路复用,功率分配和自适应调制与编码

    公开(公告)号:US20130022144A1

    公开(公告)日:2013-01-24

    申请号:US13556124

    申请日:2012-07-23

    IPC分类号: H04B7/02

    摘要: In a closed-loop wireless communication system, a codebook-based feedback mechanism is provided to enable non-unitary precoding for multi-stream transmission, where in each stream is optimized with suitable transmission power allocation and AMC. The codebook-based feedback mechanism uses a precoding codebook having a power allocation matrix which is constrained to specify that beamforming always applies full power to a predetermined beam. With this constraint, a one-bit power allocation feedback index may be used to switch between beamforming and spatial multiplexing.

    摘要翻译: 在闭环无线通信系统中,提供基于码本的反馈机制,以实现用于多流传输的非单位预编码,其中在每个流中以合适的传输功率分配和AMC进行优化。 基于码本的反馈机制使用具有功率分配矩阵的预编码码本,该功率分配矩阵被约束以规定波束成形总是对预定波束施加全部功率。 利用该约束,可以使用一位功率分配反馈索引来在波束形成和空间复用之间切换。

    MIMO precoding enabling spatial multiplexing, power allocation and adaptive modulation and coding
    17.
    发明申请
    MIMO precoding enabling spatial multiplexing, power allocation and adaptive modulation and coding 有权
    MIMO预编码使得能够进行空间复用,功率分配和自适应调制和编码

    公开(公告)号:US20080080634A1

    公开(公告)日:2008-04-03

    申请号:US11537902

    申请日:2006-10-02

    IPC分类号: H04L1/02

    摘要: In a closed-loop wireless communication system, a codebook-based feedback mechanism is provided to enable non-unitary precoding for multi-stream transmission, where in each stream is optimized with suitable transmission power allocation and AMC. The codebook-based feedback mechanism uses a precoding codebook having a power allocation matrix which is constrained to specify that beamforming always applies full power to a predetermined beam. With this constraint, a one-bit power allocation feedback index may be used to switch between beamforming and spatial multiplexing.

    摘要翻译: 在闭环无线通信系统中,提供基于码本的反馈机制,以实现用于多流传输的非单位预编码,其中在每个流中以合适的传输功率分配和AMC进行优化。 基于码本的反馈机制使用具有功率分配矩阵的预编码码本,该功率分配矩阵被约束以规定波束成形总是对预定波束施加全部功率。 利用该约束,可以使用一位功率分配反馈索引来在波束形成和空间复用之间切换。

    Feedback method for virtual MIMO transmission in wireless ad-hoc communication system
    18.
    发明授权
    Feedback method for virtual MIMO transmission in wireless ad-hoc communication system 有权
    无线自组织通信系统中虚拟MIMO传输的反馈方法

    公开(公告)号:US08867639B2

    公开(公告)日:2014-10-21

    申请号:US13868651

    申请日:2013-04-23

    IPC分类号: H04K1/10 H04B7/04 H04B7/02

    CPC分类号: H04B7/0417 H04B7/024

    摘要: A method for communicating between first multiple nodes and second multiple nodes in a wireless communication system is disclosed. The second multiple nodes may perform a first local sharing procedure for a virtual MIMO (Multiple Input Multiple Output) feedback during a first predetermined time. And then, the second multiple nodes may transmit feedback of channel status information to the first multiple nodes during an integer multiple of a second predetermined time. Finally, the first multiple nodes may perform a second local sharing procedure for the virtual MIMO feedback during the first predetermined time.

    摘要翻译: 公开了一种用于在无线通信系统中的第一多个节点和第二个多个节点之间进行通信的方法。 第二多个节点可以在第一预定时间期间为虚拟MIMO(多输入多输出)反馈执行第一本地共享过程。 然后,第二多个节点可以在第二预定时间的整数倍期间向第一多个节点发送信道状态信息的反馈。 最后,第一多个节点可以在第一预定时间期间为虚拟MIMO反馈执行第二本地共享过程。

    Power control method for interference alignment in wireless network
    19.
    发明授权
    Power control method for interference alignment in wireless network 有权
    无线网络中干扰对准的功率控制方法

    公开(公告)号:US08818445B2

    公开(公告)日:2014-08-26

    申请号:US13576385

    申请日:2011-02-01

    IPC分类号: H04B7/00

    摘要: A power control method for interference alignment in wireless network having K transmitters and K receivers is provided. The method includes: receiving, performed by receiver n (n is an integer, 1≦n≦K−1), a power indication signal of transmitter n+1 from the transmitter n+1; determining, performed by the receiver n, power of transmitter n; and transmitting, performed by the receiver n, a power indication signal of transmitter n to the transmitter n, wherein the power of transmitter n is determined based on a residual interference of the receiver n, and the power indication signal of transmitter n indicates a minimum transmission power or a maximum transmission power of transmitter n.

    摘要翻译: 提供了一种用于具有K个发射机和K个接收机的无线网络中的干扰对准的功率控制方法。 该方法包括:由发射机n + 1发射机n + 1的功率指示信号,由接收机n(n为整数,1≦̸ n≦̸ K-1) 确定由接收机n执行的发射机n的功率; 并且由接收机n执行发射机n的功率指示信号到发射机n,其中,基于接收机n的残余干扰来确定发射机n的功率,并且发射机n的功率指示信号表示最小 发射功率或发射机n的最大发射功率。

    Generalized codebook design method for limited feedback systems
    20.
    发明授权
    Generalized codebook design method for limited feedback systems 有权
    有限反馈系统的广义码本设计方法

    公开(公告)号:US08626104B2

    公开(公告)日:2014-01-07

    申请号:US11536280

    申请日:2006-09-28

    IPC分类号: H04B7/00

    摘要: In a closed-loop wireless communication system, a codebook-based feedback mechanism is provided where each codeword indicates a particular profile to be used to provide a target performance measure (e.g., bit error rate or spectral efficiency) for the transmission channel. This may be accomplished by using a multi-stage quantization process to construct the codewords as a plurality of transmission parameters specifying a MIMO transmission scheme, precoding vector or matrix, power allocation in space/time/frequency, modulation and channel code.

    摘要翻译: 在闭环无线通信系统中,提供基于码本的反馈机制,其中每个码字指示要用于为传输信道提供目标性能测量(例如,误码率或频谱效率)的特定简档。 这可以通过使用多级量化处理来构造码字来构造为指定MIMO传输方案,预编码向量或矩阵,空间/时间/频率,调制和信道码中的功率分配的多个传输参数。