Apparatus and method for transmitting and receiving data using space-time block coding
    31.
    发明申请
    Apparatus and method for transmitting and receiving data using space-time block coding 审中-公开
    使用空时块编码发送和接收数据的装置和方法

    公开(公告)号:US20060093062A1

    公开(公告)日:2006-05-04

    申请号:US11264710

    申请日:2005-11-01

    IPC分类号: H04L1/02

    CPC分类号: H04B7/0669 H04L1/0618

    摘要: An STFBC coding apparatus for a transmitter with four Tx antennas is provided. In the transmitter, an encoder generates a code symbol vector by encoding an input symbol sequence in a predetermined coding method. A grouping block permutes the elements of the code symbol vector by multiplying the code symbol vector by a permutation antenna grouping pattern selected among predetermined permutation antenna grouping patterns according to a predetermined order and outputs the permuted code symbol vector as a grouping symbol vector. An Alamouti encoder encodes the grouping symbol vector in an Alamouti scheme and transmits Alamouti-coded symbols through the four transmit antennas.

    摘要翻译: 提供了一种用于具有四个Tx天线的发射机的STFBC编码装置。 在发送器中,编码器通过以预定的编码方式对输入符号序列进行编码来生成代码符号向量。 分组块通过将代码符号向量乘以按照预定顺序从预定的置换天线分组模式中选择的置换天线分组模式来排列代码符号向量的元素,并将该排列的代码符号向量作为分组符号向量输出。 Alamouti编码器对Alamouti方案中的分组符号向量进行编码,并通过四个发送天线发送Alamouti编码符号。

    Apparatus and method for space-time block coding for increasing coding gain
    32.
    发明申请
    Apparatus and method for space-time block coding for increasing coding gain 审中-公开
    用于增加编码增益的用于时空块编码的装置和方法

    公开(公告)号:US20060039495A1

    公开(公告)日:2006-02-23

    申请号:US11205252

    申请日:2005-08-16

    IPC分类号: H04K1/10 H04L1/02

    摘要: A space-time block coding apparatus and method in a transmitter with four transmit antennas in a system using a space-time block coding scheme, a pre-coder pre-codes an input symbol sequence by multiplying the input symbol sequence by ejθ, θ being a phase rotation angle, in case of QPSK in range of 0≦θ≦90, 23.5≦θ≦24.5, or 65.5≦θ≦66.5, in case of 16QAM in range of 0≦θ≦90, 15.5≦θ≦17.5 or 72.5≦θ≦74.5, the pre-coded symbol sequence being reconstructed to have real and imaginary parts. A mapper generates symbol vectors by recombining the real and imaginary parts of the pre-coded symbol sequence in an interleaving scheme. A plurality of Alamouti coders encodes the symbol vectors in an Alamouti scheme and transmits the encoded symbol vectors through corresponding transmit antennas.

    摘要翻译: 在使用空时块编码方案的系统中,在具有四个发射天线的发射机中的时空块编码装置和方法,预编码器通过将输入符号序列乘以e 来对输入符号序列进行预编码, 在QPSK范围为0 <=θ<= 90,23.5 <=θ= 24.5或65.5 <=θ= 66.5的情况下,θ为相位旋转角度,在16QAM的情况下 范围为0 <=θ<= 90,15.5 <=θ= 17.5或72.5 <=θ= 74.5,所述预编码符号序列被重建为具有实部和虚部。 映射器通过在交织方案中重新组合预编码符号序列的实部和虚部来生成符号向量。 多个Alamouti编码器以Alamouti方案对符号向量进行编码,并通过对应的发送天线发送编码的符号向量。

    Apparatuses and methods for transmission and reception in a codebook based closed-loop (CL)-multiple input multiple output (MIMO) system
    33.
    发明授权
    Apparatuses and methods for transmission and reception in a codebook based closed-loop (CL)-multiple input multiple output (MIMO) system 有权
    基于码本的闭环(CL)多输入多输出(MIMO)系统中的传输和接收的装置和方法

    公开(公告)号:US08537921B2

    公开(公告)日:2013-09-17

    申请号:US12430035

    申请日:2009-04-24

    IPC分类号: H04L1/02

    摘要: Apparatuses and methods for transmission and reception in a Closed-Loop (CL)-Multiple Input Multiple Output (MIMO) system are provided. A codebook generation method includes determining weight vectors vi (i=1, . . . , 2L) for a codebook V(4, 1, L), where Nt of a codebook V(Nt, s, L) denotes a number of antennas, s denotes a number of streams, and L denotes a number of codebook index bits, determining a unitary matrix Ti using an i-th vector vi of the codebook V(4, 1, L), and determining an i-th matrix of the codebook V(4, 2, L) by selecting a first column of the unitary matrix Ti as a first column of a weight matrix and selecting a column selected from other columns excluding the first column of the unitary matrix Ti in a particular pattern, as a second column of the weight matrix.

    摘要翻译: 提供了一种闭环(CL) - 多输入多输出(MIMO)系统中发送和接收的装置和方法。 码本生成方法包括:对码本V(4,1,L)确定码本V(i = 1,...,2L)的码本V(Nt,s,L)的Nt表示多个天线 s表示流数,L表示码本索引比特数,使用码本V(4,1,L)的第i个向量vi确定酉矩阵Ti,并且确定第i个矩阵 通过选择酉矩阵Ti的第一列作为加权矩阵的第一列,并且选择从特定图案中的除了单一矩阵Ti的第一列之外的其他列中选择的列的码本V(4,2,L) 作为权重矩阵的第二列。

    APPARATUS AND METHOD FOR OPTIONALLY USING SECONDARY FREQUENCY ASSIGNMENT IN A WIRELESS COMMUNICATION SYSTEM USING MULTIPLE BAND
    35.
    发明申请
    APPARATUS AND METHOD FOR OPTIONALLY USING SECONDARY FREQUENCY ASSIGNMENT IN A WIRELESS COMMUNICATION SYSTEM USING MULTIPLE BAND 有权
    在使用多条无线通信系统中可选择地使用二次频率分配的装置和方法

    公开(公告)号:US20100040011A1

    公开(公告)日:2010-02-18

    申请号:US12542175

    申请日:2009-08-17

    IPC分类号: H04W72/04

    摘要: A broadband wireless communication system using multiple bands is provided. A method includes determining to stop using a first Secondary (S)-Frequency Assignment (FA) of one or more S-FAs while communicating with a correspondent node over a Primary (P)-FA and the one or more S-FAs, sending a first message which requests to suspend the first S-FA, to the correspondent node, communicating over at least one FA excluding the first S-FA, and when resumption of the first S-FA is determined, sending a second message which requests to resume the first S-FA.

    摘要翻译: 提供了使用多个频带的宽带无线通信系统。 一种方法包括:确定在通过主(P)-FA和一个或多个S-FA与对应节点通信时停止使用一个或多个S-FA的第一辅助(S) - 频率分配(FA) 请求暂停所述第一S-FA的第一消息到所述通信节点,通过除了所述第一S-FA之外的至少一个FA进行通信,以及当确定恢复所述第一S-FA时,发送请求的第二消息 恢复第一个S-FA。