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169 条记录 (耗时 0.031 秒)

    Precoding in a MIMO communication system based on delayed PMI information
    103.
    发明公开
    Precoding in a MIMO communication system based on delayed PMI information 有权
    在einem MIMO-Kommunikationssystem基础上的Vorkodierung aufverzögertenPMI-Informationen

    公开(公告)号：EP2811661A1

    公开(公告)日：2014-12-10

    申请号：EP14183711.2

    申请日：2008-12-26

    申请人： NTT DoCoMo, Inc.

    发明人： Taoka, Hidekazu ,  Miki, Nobuhiko ,  Higuchi, Kenichi ,  Sawahashi, Mamoru

    IPC分类号： H04B7/04 ,  H04B7/06 ,  H04B1/7115

    CPC分类号： H04B7/0417 ,  H04B1/7115 ,  H04B7/0639 ,  H04B2201/709709

    摘要： A user apparatus in a multi input multi output (MIMO) mobile communications system using pre-encoding is disclosed. The user apparatus includes a PMI generator which generates, in accordance with a radio propagation condition, a pre-encoding matrix indicator (PMI) which indicates a pre-encoding matrix to be used by a base station; a delay circuit which takes, as an input, the PMI and which outputs the PMI after a predetermined delay period has elapsed; an accumulating unit which takes, as an input, the PMI from the delay circuit and stores the input PMI; and a channel estimator which, on a signal from the base station, performs channel estimation using the PMI stored in the accumulating unit.

    摘要翻译： 公开了一种使用预编码的多输入多输出（MIMO）移动通信系统中的用户装置。 用户装置包括PMI生成器，其根据无线传播条件生成表示基站要使用的预编码矩阵的预编码矩阵指示符（PMI）; 作为PMI的输入，在经过预定的延迟时间后输出PMI的延迟电路; 从延迟电路接收PMI并存储输入PMI的累加单元作为输入; 以及信道估计器，其基于来自基站的信号，使用存储在所述累加单元中的PMI进行信道估计。

    Mobile station apparatus and method of receiving synchronization channels
    104.
    发明公开
    Mobile station apparatus and method of receiving synchronization channels 有权
    MOBILSTATIONSGERÄTUND SYNCHRONISATIONSKANALEMPFANGSVERFAHREN

    公开(公告)号：EP2768172A1

    公开(公告)日：2014-08-20

    申请号：EP14167865.6

    申请日：2008-06-16

    申请人： NTT DoCoMo, Inc.

    发明人： Kishiyama, Yoshihisa ,  Nagata, Satoshi ,  Tanno, Motohiro ,  Higuchi, Kenichi ,  Sawahashi, Mamoru

    IPC分类号： H04J11/00 ,  H04B1/707 ,  H04L27/26 ,  H04W48/08 ,  H04W48/16 ,  H04W88/08

    CPC分类号： H04W56/00 ,  H04J11/0076 ,  H04L27/2613 ,  H04L27/2655 ,  H04L27/2656 ,  H04L27/2657 ,  H04L27/2675 ,  H04W48/08 ,  H04W48/16 ,  H04W88/08

    摘要： A mobile station adapted to communicate with a base station apparatus using an OFDM scheme in downlink, the mobile station comprises a receiver adapted to receive a multi-carrier signal from the base station apparatus; a first detector adapted to detect a primary sync channel included in the multi-carrier signal received by the receiver; and a second detector adapted to detect a secondary sync channel included in the multi-carrier signal received by the receiver, based on the primary sync channel detected by the first detector, wherein the first detector is adapted to detect the primary sync channel that is generated based on a primary sync channel sequence number, and wherein the second detector is adapted to detect the secondary sync channel such that, in the secondary sync channel, two types of short codes to be alternately arranged in a frequency domain are scrambled by using corresponding mutually different two types of scramble sequences, and the scramble sequence used for scrambling the secondary sync channel corresponds to the primary sync channel sequence number.

    摘要翻译： 一种适用于在下行链路中使用OFDM方式与基站装置进行通信的移动台，所述移动台包括适于从所述基站装置接收多载波信号的接收机; 第一检测器，适于检测由所述接收机接收的所述多载波信号中包括的主同步信道; 以及第二检测器，其适于基于由所述第一检测器检测到的所述主同步信道来检测由所述接收机接收的所述多载波信号中包括的辅同步信道，其中所述第一检测器适于检测所产生的主同步信道 基于主同步信道序列号，并且其中第二检测器适于检测辅同步信道，使得在次同步信道中，要在频域中交替布置的两种类型的短码通过使用相应的相互加扰来加扰 不同的两种类型的加扰序列，以及用于加扰次同步信道的扰频序列对应于主同步信道序列号。

    Mobile station, base station and communications method
    106.
    发明公开
    Mobile station, base station and communications method 审中-公开
    移动，基站和社区

    公开(公告)号：EP2661140A2

    公开(公告)日：2013-11-06

    申请号：EP13175506.8

    申请日：2006-06-13

    申请人： NTT DoCoMo, Inc.

    发明人： Sawahashi, Mamoru ,  Higuchi, Kenichi

    IPC分类号： H04W74/02 ,  H04L5/00 ,  H04B1/707 ,  H04L1/18 ,  H04L1/00 ,  H04W28/04 ,  H04W72/12 ,  H04W52/14 ,  H04W52/32

    CPC分类号： H04W74/02 ,  H04B1/707 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/1867 ,  H04L5/0016 ,  H04L5/0037 ,  H04L5/0046 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0064 ,  H04W28/04 ,  H04W52/146 ,  H04W52/325 ,  H04W72/12

    摘要： A mobile station comprises a mapping portion that maps an uplink shared data channel to which an uplink shared control channel and a pilot channel pertain, on a resource block assigned by a base station, wherein plural resource blocks are arranged on a frequency axis and plural resource blocks are time-divisionally multiplexed on a time axis in an uplink; and a transmitting portion that transmits the uplink shared data channel mapped in the mapping portion. The mapping portion arranges the uplink shared control channel before and after the pilot channel in the uplink shared data channel to which the uplink shared control channel and the pilot channel pertain.

    摘要翻译： 移动站包括映射部分，其将由上行链路共享控制信道和导频信道所对应的上行链路共享数据信道映射到由基站分配的资源块上，其中多个资源块被布置在频率轴上，并且多个资源 块在上行链路中的时间轴上被时分复用; 以及发送部，其发送映射在映射部中的上行链路共享数据信道。 映射部分在上行链路共享控制信道和导频信道所属的上行链路共享数据信道中，在导频信道之前和之后布置上行共享控制信道。

    Radio communication apparatus and method
    107.
    发明公开
    Radio communication apparatus and method 审中-公开
    Einrichtung und Verfahren zur drahtlosen Kommunikation

    公开(公告)号：EP2627142A2

    公开(公告)日：2013-08-14

    申请号：EP13167253.7

    申请日：2006-03-20

    申请人： NTT DoCoMo, Inc.

    发明人： Tanno, Motohiro ,  Atarashi, Hiroyuki ,  Higuchi, Kenichi ,  Sawahashi, Mamoru

    IPC分类号： H04W72/08 ,  H04W72/04 ,  H04L12/28

    CPC分类号： H04W72/085 ,  H04L12/2854 ,  H04W72/0413

    摘要： A radio communication apparatus for use in a communication system where a downlink frequency band includes a plurality of frequency blocks including one or more carrier frequencies and one or more of the frequency blocks are used for data transmission to a single user. The apparatus comprises a transmission unit configured to transmit a signal to a communication opponent; and a reception unit configured to receive an uplink control signal including a CQI and a detected ACK or NACK from a communication opponent. If the transmitted signal includes data, the ACK or NACK included in the uplink control signal received at the reception unit is detected, and the CQIs included in the uplink control signal received at the reception unit are determined as a reference value calculated from a plurality of measurement results over the overall downlink frequency band by selecting measurement results for a predetermined number of frequency blocks from reception signal qualities measured for a plurality of frequency blocks included in the downlink frequency band at a predetermined time instant and difference values between the selected measurement results and the reference value.

    摘要翻译： 一种在通信系统中使用的无线电通信装置，其中下行链路频带包括包括一个或多个载波频率和一个或多个频率块的多个频率块，用于向单个用户的数据传输。 该装置包括被配置为向通信对方发送信号的传输单元; 以及接收单元，被配置为从通信对方接收包括CQI和检测到的ACK或NACK的上行链路控制信号。 如果所发送的信号包括数据，则检测在接收单元接收到的上行链路控制信号中包含的ACK或NACK，并且包括在接收单元接收的上行链路控制信号中的CQI被确定为从多个 通过从预定时刻对包含在下行链路频带中的多个频率块测量的接收信号质量中选择预定数量的频率块的测量结果，测量结果在整个下行链路频带上，并且所选择的测量结果与 参考值。

    Transmitting apparatus and radio resource assigning method
    108.
    发明公开
    Transmitting apparatus and radio resource assigning method 有权
    Übertragungsvorrichtungund Funkressourcen-Zuweisungsverfahren

    公开(公告)号：EP2523519A1

    公开(公告)日：2012-11-14

    申请号：EP12178826.9

    申请日：2006-03-20

    申请人： NTT DOCOMO, INC.

    发明人： Miki, Nobuhiko ,  Tanno, Motohiro ,  Higuchi, Kenichi ,  Sawahashi, Mamoru ,  Atarashi, Hiroyuki

    IPC分类号： H04W72/08

    CPC分类号： H04L5/0039 ,  H04B7/2615 ,  H04J4/00 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/1845 ,  H04L1/1867 ,  H04L5/0007 ,  H04L5/0016 ,  H04L5/0058 ,  H04L5/006 ,  H04L5/0064 ,  H04L5/0091 ,  H04W72/044 ,  H04W72/085

    摘要： A transmission apparatus and an assignment method are provide to first assign a common control channel to an OFDM symbol at a head part of a part of a plurality of frequency blocks, wherein each frequency block is formed by a plurality of subcarriers in a frequency domain and a plurality of OFDM symbols in a time domain, a length of the frequency block in the time domain corresponds to a transmission slot, and a plurality of frequency blocks are placed in the frequency domain over a system frequency band; and to subsequently assign a shared channel to a part other than the OFDM symbol to which the common control channel is assigned in the plurality of frequency blocks placed in the transmission slot.

    摘要翻译： 提供一种发送装置和分配方法，用于首先在多个频率块的一部分的头部向OFDM符号分配公共控制信道，其中每个频率块由频域中的多个子载波形成， 在时域中的多个OFDM符号，时域中的频率块的长度对应于传输时隙，并且多个频率块被放置在系统频带上的频域中; 并且随后将共享信道分配给除了放置在发送时隙中的多个频率块中的公共控制信道被分配到的OFDM符号之外的部分。

    Mobile station, method and mobile communication system for pilot transmission.
    109.
    发明公开
    Mobile station, method and mobile communication system for pilot transmission. 审中-公开
    MobilesEndgerät，Verfahren undNachrichtenübertragungssystemzurPilotübertragung

    公开(公告)号：EP2515460A1

    公开(公告)日：2012-10-24

    申请号：EP12173546.8

    申请日：2006-03-23

    申请人： NTT DoCoMo, Inc.

    发明人： Ofuji, Yoshiaki ,  Atarashi, Hiroyuki ,  Higuchi, Kenichi ,  Sawahashi, Mamoru

    IPC分类号： H04J11/00 ,  H04L5/00 ,  H04W72/04

    CPC分类号： H04J11/0026 ,  H04L5/0007 ,  H04L5/0051 ,  H04L5/006 ,  H04L27/0008 ,  H04L27/2613 ,  H04L27/2636 ,  H04W48/12 ,  H04W72/0453

    摘要： A mobile station comprises: a mapping portion (106) that maps a pilot signal to sub-carriers discretely selected at predetermined intervals in at least part of a partial band of a system band including plural sub-carriers; and a transmission portion that transmits the pilot signal mapped in the mapping portion. The mapping portion (106) determines the partial band in accordance with a bandwidth and a frequency that are specified by a base station (205), the bandwidth and frequency being orthogonal on a frequency axis with respect to a pilot signal transmitted from another mobile station.

    摘要翻译： 移动台包括：映射部分（106），其将导频信号映射到在包括多个子载波的系统频带的部分频带的至少一部分中以预定间隔离散选择的子载波; 以及发送部，其发送映射在映射部中的导频信号。 映射部分（106）根据由基站（205）指定的带宽和频率来确定部分频带，频带和频率相对于从另一个移动台发送的导频信号在频率轴上正交 。