Open-loop power adjustment for cqi repointing based on rl quality indicators
    4.
    发明专利
    Open-loop power adjustment for cqi repointing based on rl quality indicators 有权
    基于RL质量指标的CQI重建的开环功率调整

    公开(公告)号:JP2012114931A

    公开(公告)日:2012-06-14

    申请号:JP2012001341

    申请日:2012-01-06

    Abstract: PROBLEM TO BE SOLVED: To provide systems and methodologies that facilitate performing scalable transmission power offsets for an access terminal to ensure that a listening base station can hear a signal transmitted from the access terminal.SOLUTION: The power offset is generated as a function of a reverse link channel quality indicator feedback loop to permit the access terminal to adjust transmission power sufficiently without excessive power boosting, such as can occur under a static power-boosting scheme. Monitored parameters associated with channel quality indications may comprise erasure rate indicators provided by base stations in response to CQI signals from the access terminal, as well as mean received power levels associated with superframe preamble received at the access terminal.

    Abstract translation: 要解决的问题:提供便于对接入终端执行可扩展传输功率偏移的系统和方法,以确保监听基站能够听到从接入终端发送的信号。 解决方案:根据反向链路信道质量指示符反馈回路产生功率偏移,以允许接入终端充分调整发射功率,而不会过多的功率提升,例如在静态功率增强方案下可能发生的功率偏移。 与信道质量指示相关联的监视参数可以包括响应于来自接入终端的CQI信号的基站提供的擦除率指示符以及与在接入终端处接收的超帧前缀相关联的平均接收功率电平。 版权所有(C)2012,JPO&INPIT

    Mc-cdma multiplexing in an orthogonal uplink
    6.
    发明专利
    Mc-cdma multiplexing in an orthogonal uplink 审中-公开
    MC-CDMA在正交上行链路中的多路复用

    公开(公告)号:JP2012100311A

    公开(公告)日:2012-05-24

    申请号:JP2011280158

    申请日:2011-12-21

    CPC classification number: H04L5/0021 H04B1/692 H04B1/713 H04J13/18

    Abstract: PROBLEM TO BE SOLVED: To provide multi-carrier code division multiple access (MC-CDMA) being able to be used in an uplink of a wireless communication system.SOLUTION: Data symbols of each terminal from a modulator 214 are spread using a different set of orthogonal codes assigned to each terminal by an OFDM modulator 220, and each data symbol is mapped to a modulation symbol in a time-frequency block so that the data symbol is in a group not overlapping with a hopping duration based on FH sequence. An orthogonal waveform is generated and transmitted by an IFFT 224.

    Abstract translation: 要解决的问题:提供能够在无线通信系统的上行链路中使用的多载波码分多址(MC-CDMA)。 解决方案:使用由OFDM调制器220分配给每个终端的不同的正交码集合来扩展来自调制器214的每个终端的数据符号,并且将每个数据符号映射到时间 - 频率块中的调制符号,从而 数据符号在不与基于FH序列的跳跃持续时间重叠的组中。 正交波形由IFFT 224生成并传输。版权所有:(C)2012,JPO&INPIT

    Method for performing communication of frame having a plurality of modulation schemes
    7.
    发明专利
    Method for performing communication of frame having a plurality of modulation schemes 有权
    具有多重调制方案的帧通信方法

    公开(公告)号:JP2011193484A

    公开(公告)日:2011-09-29

    申请号:JP2011089956

    申请日:2011-04-14

    CPC classification number: H04L27/0008 H04L27/2627 H04L27/2649

    Abstract: PROBLEM TO BE SOLVED: To provide a method for performing the communication of a frame having two or more modulation schemes in a single system. SOLUTION: Each part of the communication frames having first and second parts has a plurality of subcarriers, and includes a step of modulating at least one subcarrier in the first part by using a first modulation scheme and a step of modulating one or more subcarriers in the second part by using a second modulation scheme different form the first modulation scheme. First type information is transmitted on at least one of the subcarriers in the first part by using the first modulation scheme. Second type information different from the first type information is transmitted on at least one or more of the subcarriers in the second part by using the second modulation scheme. COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种用于在单个系统中执行具有两个或更多个调制方案的帧的通信的方法。 解决方案:具有第一和第二部分的通信帧的每个部分具有多个子载波,并且包括通过使用第一调制方案来调制第一部分中的至少一个子载波的步骤和调制一个或多个 通过使用与第一调制方案不同的第二调制方案,在第二部分中的子载波。 通过使用第一调制方案,在第一部分中的至少一个子载波上发送第一类型信息。 通过使用第二调制方案,在第二部分中的至少一个或多个子载波上发送与第一类型信息不同的第二类型信息。 版权所有(C)2011,JPO&INPIT

    Pilot and data transmission in mimo (multi input multi output) system applying subband multiplexing
    8.
    发明专利
    Pilot and data transmission in mimo (multi input multi output) system applying subband multiplexing 有权
    MIMO(MULTI INPUT MULTI OUTPUT)系统中的引导和数据传输应用子带多路复用

    公开(公告)号:JP2011097605A

    公开(公告)日:2011-05-12

    申请号:JP2010270306

    申请日:2010-12-03

    Abstract: PROBLEM TO BE SOLVED: To provide techniques to support simultaneous transmissions for more terminals in a multiple-access system. SOLUTION: In a single-carrier frequency division multiple access (SC-FDMA) system that utilizes interleaved FDMA (IFDMA) or localized FDMA, transmitters may transmit their pilots, which are orthogonal to one another, using time division multiplexing (TDM), code division multiplexing (CDM), interleaved frequency division multiplexing (IFDM) or localized frequency division multiplexing (LFDMA). A receiver performs the complementary demultiplexing (non-multiplexing) for the pilots and may derive a channel estimate for each transmitter using an MMSE technique or a least-square technique. Data transmissions sent on the same time-frequency block are separated by spatial filter matrices. The spatial filter matrices are derived based on the channel estimates and using zero-forcing, MMSE, or maximal ratio combining technique. COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题:提供技术来支持多址系统中更多终端的同时传输。 解决方案:在采用交织FDMA(IFDMA)或局部FDMA的单载波频分多址(SC-FDMA)系统中,发射机可以使用时分复用(TDM)来发射它们彼此正交的导频 ),码分复用(CDM),交错频分复用(IFDM)或局域频分复用(LFDMA)。 接收机对导频执行互补解复用(非多路复用),并且可以使用MMSE技术或最小二乘法来为每个发射机导出信道估计。 在相同时间频率块上发送的数据传输由空间滤波器矩阵分隔开。 空间滤波器矩阵是基于信道估计和使用零强制,MMSE或最大比组合技术导出的。 版权所有(C)2011,JPO&INPIT

    Efficient signaling over access channel
    9.
    发明专利
    Efficient signaling over access channel 有权
    高效的信号通道

    公开(公告)号:JP2011024234A

    公开(公告)日:2011-02-03

    申请号:JP2010186250

    申请日:2010-08-23

    Abstract: PROBLEM TO BE SOLVED: To provide an apparatus and a method for transmitting an indicator of channel quality while minimizing use of a broadcast channel. SOLUTION: A metric of forward link geometry of observed transmission signals is determined. An indicator of channel quality value is determined as a function of the observed transmission signals. An access sequence is selected randomly from one group of a plurality of groups of access sequences, wherein each of the plurality of groups of access sequences corresponds to a different range of channel quality value. COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 解决的问题:提供一种用于在最小化广播频道的使用的同时发送信道质量的指示符的装置和方法。

    解决方案:确定观察到的传输信号的前向链路几何的度量。 根据观察到的传输信号确定信道质量值的指示符。 从多组访问序列的一组中随机选择访问序列,其中多组访问序列中的每一组对应于信道质量值的不同范围。 版权所有(C)2011,JPO&INPIT

    Multiplexing for multi-carrier cellular communication system
    10.
    发明专利
    Multiplexing for multi-carrier cellular communication system 有权
    多载波蜂窝通信系统的多路复用

    公开(公告)号:JP2010252347A

    公开(公告)日:2010-11-04

    申请号:JP2010113605

    申请日:2010-05-17

    Abstract: PROBLEM TO BE SOLVED: To provide multiplexing for a multicarrier cellular communication system. SOLUTION: For quasi-orthogonal multiplexing in an OFDMA system, multiplex traffic channels are defined for each base station. The traffic channels in each set are orthogonal to one another and can be pseudo-random, with respect to the traffic channels in each of the other sets. The minimum number of sets of channels is used to support a given number of terminals selected for data transmission. Each terminal transmits the data and pilot symbols on its traffic channel. A base station receives data transmissions from all terminals and can perform receiver spatial processing on received symbols with spatial filter matrices to obtain detected data symbols. The spatial filter matrix for each subband can be derived, based on channel response estimates for all terminals transmitting on that subband. COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题:提供多载波蜂窝通信系统的复用。 解决方案:对于OFDMA系统中的准正交复用,为每个基站定义复用业务信道。 每组中的业务信道彼此正交,并且相对于其他集合中的每一个的业务信道可以是伪随机的。 通道的最小数量用于支持选定数据传输的给定数量的终端。 每个终端在其业务信道上发送数据和导频符号。 基站从所有终端接收数据传输,并且可以利用空间滤波器矩阵对接收符号执行接收机空间处理,以获得检测到的数据符号。 可以基于在该子带上传输的所有终端的信道响应估计来导出每个子带的空间滤波器矩阵。 版权所有(C)2011,JPO&INPIT

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