公开(公告)号：EP2914026B1

公开(公告)日：2016-12-14

申请号：EP14157075.4

申请日：2014-02-27

申请人： NTT DoCoMo, Inc.

发明人： Hu, Liang ,  Kusume, Katsutoshi ,  Iwamura, Mikio

IPC分类号： H04W8/00 ,  H04W76/02

CPC分类号： H04W8/005 ,  H04W76/14

摘要： A method is presented for transmitting a discovery signal by a communication device to enable its discovery by other communication devices, said method comprising the steps of: encoding a resource hopping pattern in said discovery signal, said hopping patter defining a sequence of resources, and repeatedly transmitting discovery signal such for each of the repeated transmissions the resource which is used for the transmission, is chosen in accordance with the sequence of resources defined by the resource hopping pattern, respectively. Furthermore, a method for receiving a discovery signal transmitted by a neighbour communication device is presented, wherein a resource hopping pattern of said neighbour communication device in said received discovery signal is decoded.

公开(公告)号：EP1926215A1

公开(公告)日：2008-05-28

申请号：EP06024548.7

申请日：2006-11-27

申请人： NTT DoCoMo, Inc.

发明人： Bauch, Gerhard ,  Kusume, Katsutoshi

IPC分类号： H03M13/27 ,  H03M13/29

CPC分类号： H03M13/2714 ,  H03M13/098 ,  H03M13/296 ,  H03M13/3905

摘要： An encoder (100) for generating an output codeword based on an input information word, the input information word having fewer bits than the output codeword. The encoder (100) comprising a segmenter (110) for segmenting the input information word into a plurality of coded segments, the segments having bits and comprising a zigzag encoder core (120) for calculating a redundancy bit for a current segment, wherein a redundancy bit of an earlier segment in the order is used for calculating the redundancy bit for the current segment. The encoder (100) further comprising an interleaver (130) for interleaving the bits of the plurality of segments using a first interleaving rule to obtain a first interleaved version and for interleaving the bits of the plurality of segments using a second interleaving rule to obtain a second interleaved version, where the interleaver (130) is designed to generate the first interleaving rule as a predefined interleaving rule obtained by conducting a predefined number of sequenced intermediate sub-steps. The encoder (100) further comprising an output codeword constructor (140) for constructing the output codeword using the input codeword or an interleaved version thereof, a set of first redundancy bits generated by the zigzag encoder core (120) fed by the input codeword or the first interleaved version and a set of second redundancy bits generated by the zigzag encoder core (120) fed by the second interleaved version, wherein the interleaver (130) is adapted to use, as the second interleaving rule, an intermediate interleaving rule obtained by conducting a first sub-step or a number of sub-steps less than the predefined number of sub-steps or an interleaving rule obtained by processing the intermediate interleaving rule in a different manner compared to the remaining sub-steps.

摘要翻译： 一种用于基于输入信息字生成输出码字的编码器（100），所述输入信息字具有比所述输出码字少的位。 编码器（100）包括用于将输入信息字分割为多个编码段的分段器（110），该段具有比特并且包括用于计算当前段的冗余比特的之字形编码器核（120），其中冗余 用于计算当前段的冗余位的顺序中的较早段的位。 编码器（100）还包括交织器（130），用于使用第一交织规则对所述多个片段的比特进行交织以获得第一交织版本，并且使用第二交织规则对所述多个片段的比特进行交织以获得 第二交织版本，其中交织器（130）被设计为生成第一交织规则作为通过执行预定数量的排序的中间子步骤而获得的预定交织规则。 编码器（100）还包括输出码字构造器（140），用于使用输入码字或其交错版本来构造输出码字，由由输入码字馈送的之字形编码器核心（120）生成的一组第一冗余比特或 第一交错版本和由第二交错版本馈送的之字形编码器核心（120）生成的一组第二冗余位，其中交织器（130）适于使用由第二交织规则获得的中间交织规则， 执行小于预定数量的子步骤的第一子步骤或多个子步骤或通过以与其余子步骤相比较的不同方式处理中间交织规则而获得的交织规则。

公开(公告)号：EP1775840A1

公开(公告)日：2007-04-18

申请号：EP05022598.6

申请日：2005-10-17

申请人： NTT DoCoMo, Inc.

发明人： Kusume, Katsutoshi ,  Bauch, Gerhard

IPC分类号： H03M13/27 ,  H04L1/00 ,  H04B1/00

CPC分类号： H04L1/0059 ,  H03M13/2767 ,  H03M13/2789 ,  H03M13/6505 ,  H04L1/0048 ,  H04L1/0071 ,  H04L1/08

摘要： A transmitter for generating information including a plurality of information blocks suitable for transmission to a receiver is described, comprising a user-specific interleaver (324), said user-specific interleaver (324) comprising a common interleaver (312) common to a plurality of users for interleaving of information blocks and user-specific permuting means (316, 316.1 to 316.D) for user-specifically permuting information blocks.

摘要翻译： 描述了一种用于生成包括适合于向接收机传输的多个信息块的信息的发射机，包括用户特定交织器（324），所述用户特定交织器（324）包括公共交织器（312） 用于交织信息块的用户和用户特定置换信息块（316,316.1至316.D）的用户专用置换信息块。

公开(公告)号：EP3280106A1

公开(公告)日：2018-02-07

申请号：EP16183140.9

申请日：2016-08-05

申请人： NTT DOCOMO, INC.

发明人： Weitkemper, Petra ,  Kusume, Katsutoshi ,  Bazzi, Jamal ,  Iwamura, Mikio

IPC分类号： H04L27/26

CPC分类号： H04L27/264

摘要： A method for transmitting a signal in a communication system having a certain system bandwidth, wherein different parts of the system bandwidth are used for respectively different users or services,
wherein said signal to be transmitted is shaped by signal processing at the transmitter side to fulfill predefined spectral and/or temporal requirements,
wherein said predefined requirements are defined as thresholds of maximum and/or minimum power density in the frequency and/or time domain,
wherein said requirements are defined for the part of the system bandwidth used for a specific service or user,
wherein said signal processing is performed such that a spectral or temporal filter is applied such that said signal does not exceed said thresholds defined by said spectral and/or temporal requirements.

摘要翻译： 一种用于在具有一定系统带宽的通信系统中发送信号的方法，其中系统带宽的不同部分分别用于不同的用户或服务，其中要发送的所述信号通过发送器侧的信号处理整形，以满足预定的 频谱和/或时间要求，其中所述预定义要求被定义为频率和/或时域中的最大和/或最小功率密度的阈值，其中所述要求是针对用于特定服务的系统带宽的一部分来定义的，或者 用户，其中执行所述信号处理，使得应用频谱或时间滤波器，使得所述信号不超过由所述频谱和/或时间要求限定的所述阈值。

公开(公告)号：EP2913969A1

公开(公告)日：2015-09-02

申请号：EP14156875.8

申请日：2014-02-26

申请人： NTT DoCoMo, Inc.

发明人： Weitkemper, Petra ,  Bazzi, Jamal ,  Kusume, Katsutoshi

IPC分类号： H04L27/26 ,  H04L25/02

CPC分类号： H04L27/2698 ,  H04L25/0224 ,  H04L27/2602 ,  H04L27/2626

摘要： A method for transmitting a multicarrier signal is presented, wherein said signal is of the offset quadrature amplitude modulation OQAM type comprising symbols in the time-frequency space, wherein the symbol is one of a pilot symbol, a precoding symbol, and other symbols; the method being characterized in that the precoding symbol is selected such as to force the intrinsic interference of the pilot symbol, when received by the receiver, to have one value out of a predefined set of discrete values, said set containing at least one element different from zero. Furthermore, a corresponding method for receiving the multicarrier signal transmitted according to the above described method is presented.

摘要翻译： 提出了一种用于发送多载波信号的方法，其中所述信号是包括在时间 - 频率空间中的符号的偏移正交幅度调制OQAM类型，其中该符号是导频符号，预编码符号和其他符号之一; 所述方法的特征在于，选择预编码符号，以便在接收机接收时强制导频符号的固有干扰在预定义的一组离散值中具有一个值，所述集合包含至少一个元素不同 从零开始。 此外，提出了用于接收根据上述方法发送的多载波信号的相应方法。

公开(公告)号：EP2879440A1

公开(公告)日：2015-06-03

申请号：EP13194853.1

申请日：2013-11-28

申请人： NTT Docomo, Inc.

发明人： Agyapong, Patrick ,  Ternon, Emmanuel ,  Hu, Liang ,  Kusume, Katsutoshi ,  Iwamura, Mikio

IPC分类号： H04W48/16 ,  H04W76/04 ,  H04W84/04

CPC分类号： H04W48/16 ,  H04W16/32 ,  H04W24/10 ,  H04W76/10 ,  H04W76/27 ,  H04W84/045

摘要： A method is described for controlling a small cell base station (104 1 ) in a wireless communication system comprising a plurality of small cell base stations (104 1 -104 2 ) controlled by a macro base station (100). The method comprises taking (204), by a small cell base station (104 1 ), a measurement for obtaining information describing a vicinity around the small cell base station (104 1 ) and reporting the information from the small cell base station (104 1 ) to the macro base station (100).

摘要翻译： 描述了一种用于控制包括由宏基站（100）控制的多个小小区基站（1041-1042）的无线通信系统中的小小区基站（1041）的方法。 该方法包括：由小小区基站（1041）取得（204）用于获得描述小小区基站（1041）周围的附近信息的测量结果，并且将来自小小区基站（1041）的信息报告给 宏基站（100）。

公开(公告)号：EP3282655A1

公开(公告)日：2018-02-14

申请号：EP16183627.5

申请日：2016-08-10

申请人： NTT DOCOMO, INC.

发明人： Kusume, Katsutoshi ,  Weitkemper, Petra ,  Bazzi, Jamal ,  Iwamura, Mikio

IPC分类号： H04L25/03 ,  H04L27/26

CPC分类号： H04L25/03828 ,  H04L27/2626

摘要： A method method for transmitting a signal in a communication system, wherein
- said signal is composed of first symbols transmitted on a transmission bandwidth and second symbols transmitted on one or more guard bandwidths,
- said guard bandwidths are configured at frequencies below and/or above said transmission bandwidth,
- said signal to be transmitted is to fulfill predefined requirements set for said transmission bandwidth, said guard bandwidth, and out of band,
- said predefined requirements are defined as thresholds of maximum and/or minimum values on power density in the frequency and/or time domain,
- said values are the same for said transmission bandwidth and said guard bandwidths,
- said first symbols include data and/or pilot symbols, and
- said second symbols are composed of arbitrary symbols and/or no symbols, such that said signal does not exceed said thresholds.

摘要翻译： 一种用于在通信系统中传输信号的方法方法，其中 - 所述信号由在传输带宽上传输的第一符号和在一个或多个保护带宽上传输的第二符号组成， - 所述保护带宽被配置为低于和/或高于 所述传输带宽 - 要传输的所述信号是为了满足为所述传输带宽，所述保护带宽和带外所设置的预定义要求， - 所述预定义要求被定义为关于所述传输带宽中的功率密度的最大值和/或最小值的阈值 频率和/或时域， - 所述值对于所述传输带宽和所述保护带宽是相同的， - 所述第一码元包括数据和/或导频码元，以及 - 所述第二码元由任意码元和/或无码元构成， 使得所述信号不超过所述阈值。

公开(公告)号：EP2879425B1

公开(公告)日：2016-01-06

申请号：EP13194858.0

申请日：2013-11-28

申请人： NTT Docomo, Inc.

发明人： Agyapong, Patrick ,  Ternon, Emmanuel ,  Hu, Liang ,  Kusume, Katsutoshi ,  Iwamura, Mikio

IPC分类号： H04W24/10 ,  H04W52/02 ,  H04W72/04

CPC分类号： H04W24/10 ,  H04W24/02 ,  H04W24/08 ,  H04W48/16 ,  H04W52/0206 ,  H04W72/085 ,  H04W76/10 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/24

摘要： A method is described for controlling a small cell base station (104 1 ) and a user equipment (112) to be served by the small base station in a wireless communication system comprising a plurality of small cell base stations (104 1 - 104 2 ) controlled by a macro base station (100). The method comprises, in response to a request (302) from the macro base station (100) to the small cell base station (104 1 ), performing, by the small cell base station (104 1 ), a beacon transmission on one or more resources, in response to a request (304) from the macro base station (100) to the user equipment (112), performing, by the user equipment (112), a channel quality measurement on the one or more resources, and reporting the measured channel quality from the user equipment (112) to the macro base station (100).

公开(公告)号：EP2879425A1

公开(公告)日：2015-06-03

申请号：EP13194858.0

申请日：2013-11-28

申请人： NTT Docomo, Inc.

发明人： Agyapong, Patrick ,  Ternon, Emmanuel ,  Hu, Liang ,  Kusume, Katsutoshi ,  Iwamura, Mikio

IPC分类号： H04W24/10 ,  H04W52/02 ,  H04W72/04

CPC分类号： H04W24/10 ,  H04W24/02 ,  H04W24/08 ,  H04W48/16 ,  H04W52/0206 ,  H04W72/085 ,  H04W76/10 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/24

摘要： A method is described for controlling a small cell base station (104 1 ) and a user equipment (112) to be served by the small base station in a wireless communication system comprising a plurality of small cell base stations (104 1 - 104 2 ) controlled by a macro base station (100). The method comprises, in response to a request (302) from the macro base station (100) to the small cell base station (104 1 ), performing, by the small cell base station (104 1 ), a beacon transmission on one or more resources, in response to a request (304) from the macro base station (100) to the user equipment (112), performing, by the user equipment (112), a channel quality measurement on the one or more resources, and reporting the measured channel quality from the user equipment (112) to the macro base station (100).

摘要翻译： 描述了一种用于在无线通信系统中控制由小型基站服务的小型小区基站（1041）和用户设备（112）的方法，所述无线通信系统包括由多个小型基站（1041-1042）控制的小型小区基站 宏基站（100）。 该方法包括响应于从宏基站（100）到小小区基站（1041）的请求（302），由小小区基站（1041）在一个或多个资源上执行信标传输 响应于来自所述宏基站（100）到所述用户设备（112）的请求（304），由所述用户设备（112）对所述一个或多个资源执行信道质量测量，并且报告所测量的 信道质量从用户设备（112）到宏基站（100）。

公开(公告)号：EP2852238A1

公开(公告)日：2015-03-25

申请号：EP13185135.4

申请日：2013-09-19

申请人： NTT DoCoMo, Inc.

发明人： Dotzler, Andreas ,  Utschick, Wolfgang ,  Taoka, Hidekazu ,  Kusume, Katsutoshi

IPC分类号： H04W72/08 ,  H04W72/04

CPC分类号： H04W72/082 ,  H04W72/0413

摘要： A method for determining at a user equipment (200) of a wireless communication system an interference estimate for at least one of a plurality of reuse patterns of a fractional reuse scheme used by the wireless communication system, comprises (a) receiving, at the user equipment (200), information about a reuse pattern currently used by the wireless communication system for a communication with the user equipment (200), and information about at least one further reuse pattern of the fractional reuse scheme; (b) determining, by the user equipment (200), a current interference estimate for the currently used reuse pattern; and (c) determining, by the user equipment (200), an interference estimate for the at least one further reuse pattern based on the determined current interference estimate.

摘要翻译： 一种用于在无线通信系统的用户设备（200）处确定由无线通信系统使用的分数重用方案的多个重用模式中的至少一个的干扰估计的方法，包括：（a）在所述用户 设备（200），关于无线通信系统当前用于与用户设备（200）的通信的再利用模式的信息，以及关于小数重用方案的至少一个其他重用模式的信息; （b）由用户设备（200）确定当前使用的重用模式的当前干扰估计; 以及（c）基于所确定的当前干扰估计，由用户设备（200）确定所述至少一个另外的再利用模式的干扰估计。