Feedback Method For Performing A Feedback By Using A Codebook In Mimo System
    2.
    发明申请
    Feedback Method For Performing A Feedback By Using A Codebook In Mimo System 审中-公开
    在Mimo系统中使用代码簿执行反馈的反馈方法

    公开(公告)号:US20120008613A1

    公开(公告)日:2012-01-12

    申请号:US13240591

    申请日:2011-09-22

    IPC分类号: H04W92/00

    摘要: A feedback method for performing a feedback by using a codebook in Multiple Input Multiple Output (MIMO) system includes receiving, by the mobile station, a MIMO mode type information, generating feedback information by using the codebook selected according to the MIMO mode type information, and transmitting the feedback information to the base station. The codebook includes a SU-MIMO codebook and a MU-MIMO codebook, and the MU-MIMO codebook is formed by extracting codebook elements from the SU-MIMO codebook. As a result, the method maximizes a system throughput simultaneously while effectively reducing an amount of feedback information.

    摘要翻译: 用于通过使用多输入多输出(MIMO)系统中的码本来执行反馈的反馈方法包括:由移动台接收MIMO模式类型信息,通过使用根据MIMO模式类型信息选择的码本生成反馈信息, 以及将所述反馈信息发送到所述基站。 码本包括SU-MIMO码本和MU-MIMO码本,并且通过从SU-MIMO码本中提取码本元素来形成MU-MIMO码本。 因此,该方法可以同时最大化系统吞吐量,同时有效减少反馈信息的数量。

    METHOD FOR MODE ADAPTATION IN MIMO SYSTEM
    3.
    发明申请
    METHOD FOR MODE ADAPTATION IN MIMO SYSTEM 有权
    MIMO系统中的模式适配方法

    公开(公告)号:US20090257384A1

    公开(公告)日:2009-10-15

    申请号:US12385369

    申请日:2009-04-06

    IPC分类号: H04W72/04 H04B7/02

    摘要: A mode adaptation method for performing mode switching between a single-user MIMO (SU-MIMO) mode and a multi-user MIMO (MU-MIMO) mode includes reporting, by a base station, a MIMO feedback mode to a mobile station, receiving a feedback information determined on the basis of the MIMO feedback mode from the mobile station; and determining a MIMO feedback mode based on the feedback information. The MIMO feedback mode indicates whether it is single-user MIMO or multi-user MIMO and includes a number of mobile stations (MSs) transferred at one time. As a result, the method maximizes a system throughput simultaneously while effectively reducing an amount of feedback information.

    摘要翻译: 用于在单用户MIMO(SU-MIMO)模式和多用户MIMO(MU-MIMO)模式之间执行模式切换的模式适配方法包括由基站向移动台报告MIMO反馈模式,接收 基于来自移动台的MIMO反馈模式确定的反馈信息; 以及基于所述反馈信息确定MIMO反馈模式。 MIMO反馈模式指示它是单用户MIMO还是多用户MIMO,并且包括一次转移的多个移动台(MS)。 因此,该方法可以同时最大化系统吞吐量,同时有效减少反馈信息的数量。

    METHOD FOR ALLOCATION REFERENCE SIGNALS IN MIMO SYSTEM
    4.
    发明申请
    METHOD FOR ALLOCATION REFERENCE SIGNALS IN MIMO SYSTEM 有权
    MIMO系统中分配参考信号的方法

    公开(公告)号:US20120189041A1

    公开(公告)日:2012-07-26

    申请号:US13439828

    申请日:2012-04-04

    IPC分类号: H04B7/02

    摘要: A user equipment (UE) receiving a plurality of reference signals in a wireless multiple-input multiple-output (MIMO) communication system includes a transceiver configured for receiving the plurality of reference signals for multiple antennas in a sub-frame, the sub-frame including a plurality of Orthogonal Frequency Division Multiplexing (OFDM) symbols in a time domain over a plurality of sub-carriers in a frequency domain. A first array is repeated in the frequency domain on a first OFDM symbol of the sub-frame, a second array is repeated in the frequency domain on a second OFDM symbol of the sub-frame and a third array is repeated in the frequency domain on a third OFDM symbol of the sub-frame, and each of the first, second and third arrays consists of six contiguous symbols in the frequency domain.

    摘要翻译: 在无线多输入多输出(MIMO)通信系统中接收多个参考信号的用户设备(UE)包括:收发器,被配置为在子帧中接收多个天线的多个参考信号,子帧 包括在频域中的多个子载波上的时域中的多个正交频分复用(OFDM)符号。 在子帧的第一OFDM符号上的频域中重复第一阵列,在子帧的第二OFDM符号上在频域中重复第二阵列,并且在频域上重复第三阵列 子帧的第三OFDM符号,并且第一,第二和第三阵列中的每一个由频域中的六个相邻符号组成。

    METHOD FOR SETTING PRECODER IN OPEN LOOP MIMO SYSTEM
    6.
    发明申请
    METHOD FOR SETTING PRECODER IN OPEN LOOP MIMO SYSTEM 审中-公开
    用于在开环MIMO系统中设置预编码器的方法

    公开(公告)号:US20100278278A1

    公开(公告)日:2010-11-04

    申请号:US12770140

    申请日:2010-04-29

    IPC分类号: H04B7/02

    摘要: A feedback method of a user equipment in an open loop Multiple-Input Multiple-Output (MIMO) system is disclosed. The method includes, receiving one of a plurality of modes determined according to types of resources to be used for performing feedback from a base station, and selecting a precoding matrix from a codebook subset corresponding to the received mode, applying the selected precoding matrix, and transmitting feedback information. Different codebook subsets are configured with respect to the plurality of modes, and the codebook subset is configured by extracting a predetermined number of elements from a base codebook based on a predetermined criterion considering the characteristics of the modes.

    摘要翻译: 公开了一种开环多输入多输出(MIMO)系统中的用户设备的反馈方法。 该方法包括:接收根据要用于从基站执行反馈的资源类型确定的多个模式之一,以及从对应于接收模式的码本子集中选择预编码矩阵,应用所选择的预编码矩阵;以及 发送反馈信息。 针对多个模式配置不同的码本子集,并且通过考虑模式的特征,基于预定标准从基本码本中提取预定数量的元素来配置码本子集。

    DATA TRANSMITTING AND RECEIVING METHOD USING PHASE SHIFT BASED PRECODING AND TRANSCEIVER SUPPORTING THE SAME
    8.
    发明申请
    DATA TRANSMITTING AND RECEIVING METHOD USING PHASE SHIFT BASED PRECODING AND TRANSCEIVER SUPPORTING THE SAME 有权
    使用基于相位移位的数据发送和接收方法及其支持的收发器

    公开(公告)号:US20110110405A1

    公开(公告)日:2011-05-12

    申请号:US13007497

    申请日:2011-01-14

    IPC分类号: H04L27/28 H04B1/38

    摘要: A method for performing a precoding based on a generalized phase shift or a precoding based on an extended phase shift in a Multi-Input Multi-Output (MIMO) system employing several sub-carriers, and a transceiver for supporting the same are disclosed. A phase-shift-based precoding matrix is generalized by multiplying a diagonal matrix for a phase shift by a unitary matrix for maintaining orthogonality between sub-carriers. In this case, a diagonal matrix part may be extended by multiplying a precoding matrix for removing interference between sub-carriers by a diagonal matrix for a phase shift. By generalization and extension of the phase-shift-based precoding, a transceiver is more simplified, and communication efficiency increases.

    摘要翻译: 公开了一种用于在采用多个子载波的多输入多输出(MIMO)系统中基于广义相移或基于扩展相移的预编码进行预编码的方法,以及用于支持它的收发器。 基于相移的预编码矩阵通过将用于相移的对角矩阵乘以酉矩阵来推广,以维持子载波之间的正交性。 在这种情况下,可以通过将预编码矩阵乘以用于去除相移之间的对角线矩阵的子载波之间的干扰来扩展对角矩阵部分。 通过对基于相移的预编码的泛化和扩展,收发器更加简化,并且通信效率提高。

    APPARATUS AND METHOD FOR CONTROLLING TRANSMISSION POWER IN A WIRELESS COMMUNICATION SYSTEM USING FRACTIONAL FREQUENCY REUSE
    9.
    发明申请

    公开(公告)号:US20110111789A1

    公开(公告)日:2011-05-12

    申请号:US12944625

    申请日:2010-11-11

    IPC分类号: H04W52/02

    CPC分类号: H04W52/42 H04W52/38

    摘要: A method for acquiring FFR power pattern of Frequency Partitions (FPs) at a mobile station (MS) in a wireless communication system using Fractional Frequency Reuse (FFR) is disclosed. The method includes receiving a preamble from a base station (BS); and acquiring a FFR power pattern for a reuse-1 partition and reuse-N partitions using the received preamble, wherein the FFR power pattern is determined based on a segment identifier (ID), the reuse-N partitions include N frequency partitions, each frequency partition has a power level with a range of FP1_power level to FPN_power level, a power-boosted FP in the reuse-N partitions is a partition whose power level is the FP1_power level.

    摘要翻译: 公开了一种在使用分数频率重用(FFR)的无线通信系统中在移动站(MS)处获取频率分区(F F)的FFR功率模式的方法。 该方法包括从基站(BS)接收前导码; 并且使用所接收的前导码获取用于重用1分区的FFR功率模式和重新使用N个分区,其中基于分段标识符(ID)确定所述FFR功率模式,所述重用N分区包括N个频率分区,每个频率 分区具有FP1_power级别到FPN_power级别的功率级别,重新使用N分区中的功率增强FP是功率级别为FP1_power级别的分区。

    METHOD AND APPARATUS OF DOWNLINK SUBCHANNELIZATION IN WIRELESS COMMUNICATION SYSTEM
    10.
    发明申请
    METHOD AND APPARATUS OF DOWNLINK SUBCHANNELIZATION IN WIRELESS COMMUNICATION SYSTEM 有权
    无线通信系统中下行链路子信道的方法与装置

    公开(公告)号:US20110103218A1

    公开(公告)日:2011-05-05

    申请号:US12939126

    申请日:2010-11-03

    IPC分类号: H04W72/04

    摘要: A method of downlink subchannelization in a wireless communication system includes: transmitting a network entry and network discovery information including an open loop (OL) region parameter; and mapping a physical resource unit (PRU) to a contiguous resource unit (CRU) or a distributed resource unit (DRU) with respect to ith frequency partition based on the OL region parameter, wherein a permutation sequence used for mapping a PRU of the ith frequency partition (PRUFPi) to a CRU of the ith frequency partition (CRUFPi) or a DRU of the ith frequency partition (DRUFPi) is determined by a seed value, and the seed value is set to be a particular value according to the value of the OL region parameter.

    摘要翻译: 一种无线通信系统中的下行链路子信道化方法包括:发送包括开环(OL)区域参数的网络入口和网络发现信息; 以及基于所述OL区域参数将物理资源单元(PRU)映射到关于第i个频率分区的连续资源单元(CRU)或分布式资源单元(DRU),其中,用于映射第i个的PRU的置换序列 频率划分(PRUFPi)到第i个频率分区(CRUFPi)的CRU或第i个频率分区(DRUFPi)的DRU由种子值确定,并且种子值被设置为根据 OL区域参数。