公开(公告)号：US09544793B2

公开(公告)日：2017-01-10

申请号：US14375515

申请日：2012-01-30

申请人： Le Liu ,  Takamichi Inoue ,  Naoto Ishii ,  Yoshikazu Kakura

发明人： Le Liu ,  Takamichi Inoue ,  Naoto Ishii ,  Yoshikazu Kakura

IPC分类号： H04W24/08 ,  H04B7/02 ,  H04B17/345 ,  H04L5/00 ,  H04B17/24 ,  H04B17/309

CPC分类号： H04L5/0057 ,  H04B7/024 ,  H04B17/24 ,  H04B17/309 ,  H04B17/345 ,  H04L5/0035 ,  H04L5/0048 ,  H04W24/08 ,  H04W72/042 ,  H04W72/082

摘要： A radio communication system includes a network and a user terminal, wherein the network includes a plurality of radio stations and a controller which controls the plurality of radio stations, wherein at least two of the plurality of radio stations communicate with the user terminal, wherein the controller notifies the user terminal of information about resource for interference measurement, wherein the user terminal calculates and reports channel quality information based on the information.

摘要翻译： 无线通信系统包括网络和用户终端，其中所述网络包括多个无线电站和控制所述多个无线电台的控制器，其中所述多个无线电站中的至少两个与所述用户终端通信，其中， 控制器向用户终端通知有关干扰测量用资源的信息，其中，用户终端基于该信息计算并报告信道质量信息。

公开(公告)号：US09386574B2

公开(公告)日：2016-07-05

申请号：US13000265

申请日：2009-06-19

申请人： Kenji Koyanagi ,  Takamichi Inoue ,  Le Liu ,  Yoshikazu Kakura

发明人： Kenji Koyanagi ,  Takamichi Inoue ,  Le Liu ,  Yoshikazu Kakura

IPC分类号： H04W72/04 ,  H04L5/00 ,  H04W28/06

CPC分类号： H04W72/0413 ,  H04L5/0039 ,  H04L5/0094 ,  H04W28/06 ,  H04W72/042 ,  H04W72/0453

摘要： Provided is a technique capable of reporting resource block allocation information with no waste when an allocated resource block is reported, because in the current LTE downlink, the waste of the amount of resource allocation information increases in some cases since a restriction is imposed such that 37-bit fixed scheduling information is transmitted. A resource block group consisting of at least one or more resource blocks continuous on the frequency axis is allocated to a terminal, and the number of controlling signals for reporting allocation information indicating the allocated resource blocks is determined.

摘要翻译： 提供了当所分配的资源块被报告时能够报告资源块分配信息而不浪费的技术，因为在当前的LTE下行链路中，由于施加了限制，所以资源分配信息量的浪费在某些情况下增加，因此37 位固定调度信息被发送。 将由频率轴上连续的至少一个或多个资源块组成的资源块组分配给终端，并且确定用于报告指示分配的资源块的分配信息的控制信号的数量。

公开(公告)号：US08953533B2

公开(公告)日：2015-02-10

申请号：US13257809

申请日：2010-03-19

申请人： Takamichi Inoue ,  Kenji Koyanagi ,  Yoshikazu Kakura

发明人： Takamichi Inoue ,  Kenji Koyanagi ,  Yoshikazu Kakura

IPC分类号： H04W72/04 ,  H04W40/00 ,  H04W76/00 ,  H04B7/216 ,  H04B7/00 ,  H04B1/00 ,  H04L27/26 ,  H04L5/00 ,  H04W72/00

CPC分类号： H04L27/2614 ,  H04L5/0001 ,  H04L5/003 ,  H04L27/2613 ,  H04W72/00

摘要： Provided is a wireless communication technique capable of supporting communication using a single component carrier, and communication using a plurality of component carriers. The communication using the plurality of carriers comprises a processing means for performing the signal processing in accordance with each of the carriers with respect to the common signal sequence used by the plurality of carriers. The present invention makes it possible to cope with the communication employing a single component carrier and the wireless communication employing a plurality of the component carriers. Further, PAPR of the reference signals can be made small because there is no possibility that the identical CAZAC sequence is used among the component carriers when a plurality of the component carriers are employed.

摘要翻译： 提供了能够支持使用单个分量载波进行通信的无线通信技术，以及使用多个分量载波的通信。 使用多个载波的通信包括处理装置，用于根据多个载波使用的公共信号序列执行根据每个载波的信号处理。 本发明使得可以应对采用单分量载波的通信和采用多个分量载波的无线通信。 此外，当采用多个分量载波时，可以使参考信号的PAPR较小，因为在分量载波中不可能使用相同的CAZAC序列。

公开(公告)号：US08125887B2

公开(公告)日：2012-02-28

申请号：US12281280

申请日：2007-03-01

申请人： Takamichi Inoue ,  Yoshikazu Kakura

发明人： Takamichi Inoue ,  Yoshikazu Kakura

IPC分类号： H04J11/00 ,  H04W4/00 ,  H04B7/216

CPC分类号： H04J13/16 ,  H04W16/02 ,  H04W72/0413 ,  H04W72/042

摘要： An object of the present invention is to reduce the amount of calculation performed in a mobile station and amount of information exchanged between a base station and mobile station in a mobile communication system where the base station autonomously assigns a scramble code. In the mobile communication system, the base station starts communication by using a predetermined initialization scramble code used only at its activation time. The mobile station positioned in a cell determines whether the scramble code identified upon cell search time is the initialization scramble code. Only when the scramble code is the initialization scramble code, the mobile station determines a candidate scramble code, determines whether the candidate scramble code is usable in communication, and notifies the base station of the control information including the determination result. Based on the control information, the base station determines a service scramble code to be used, from the candidate scramble codes, and applies the service scramble code to start communication.

摘要翻译： 本发明的一个目的是减少在移动台中进行的计算量以及在基站自主分配扰频码的移动通信系统中在基站与移动台之间交换的信息量。 在移动通信系统中，基站通过使用仅在其激活时间使用的预定的初始化扰码开始通信。 位于小区中的移动台确定在小区搜索时间识别的扰码是否是初始化扰码。 只有当密码是初始化密码时，移动台才能确定候选密码，确定候选密码是否可用于通信，并向基站通知包含确定结果的控制信息。 基于控制信息，基站从候选扰码确定要使用的服务扰码，并应用服务扰码开始通信。

公开(公告)号：US20120008615A1

公开(公告)日：2012-01-12

申请号：US13257728

申请日：2010-03-19

申请人： Takamichi Inoue ,  Kenji Koyanagi ,  Yoshikazu Kakura

发明人： Takamichi Inoue ,  Kenji Koyanagi ,  Yoshikazu Kakura

IPC分类号： H04W92/00

CPC分类号： H04J13/0059 ,  H04J13/22 ,  H04L25/022 ,  H04L25/03159 ,  H04L27/261 ,  H04L27/2614 ,  H04L27/2636 ,  H04W72/00

摘要： Provided is a wireless communication technique capable of supporting communication using a single component carrier, and communication using a plurality of component carriers. The communication using the plurality of carriers is characterized by using a different signal sequence in each of the carriers, and using the signal sequences as reference signals. The present invention makes it possible to cope with the communication employing a single component carrier and the wireless communication employing a plurality of the component carriers. Further, PAPR of the reference signals can be made small because there is no possibility that the identical CAZAC sequence is used among the component carriers when a plurality of the component carriers are employed.

摘要翻译： 提供了能够支持使用单个分量载波进行通信的无线通信技术，以及使用多个分量载波的通信。 使用多个载波的通信的特征在于在每个载波中使用不同的信号序列，并且使用信号序列作为参考信号。 本发明使得可以应对采用单分量载波的通信和采用多个分量载波的无线通信。 此外，当采用多个分量载波时，可以使参考信号的PAPR较小，因为在分量载波中不可能使用相同的CAZAC序列。

公开(公告)号：US20110113433A1

公开(公告)日：2011-05-12

申请号：US13000265

申请日：2009-06-19

申请人： Kenji Koyanagi ,  Takamichi Inoue ,  Le Liu ,  Yoshikazu Kakura

发明人： Kenji Koyanagi ,  Takamichi Inoue ,  Le Liu ,  Yoshikazu Kakura

IPC分类号： G06F9/50

CPC分类号： H04W72/0413 ,  H04L5/0039 ,  H04L5/0094 ,  H04W28/06 ,  H04W72/042 ,  H04W72/0453

摘要： Provided is a technique capable of reporting resource block allocation information with no waste when an allocated resource block is reported, because in the current LTE downlink, the waste of the amount of resource allocation information increases in some cases since a restriction is imposed such that 37-bit fixed scheduling information is transmitted. A resource block group consisting of at least one or more resource blocks continuous on the frequency axis is allocated to a terminal, and the number of controlling signals for reporting allocation information indicating the allocated resource blocks is determined.

摘要翻译： 提供了当所分配的资源块被报告时能够报告资源块分配信息而不浪费的技术，因为在当前的LTE下行链路中，由于施加了限制，所以资源分配信息量的浪费在某些情况下增加，因此37 位固定调度信息被发送。 将由频率轴上连续的至少一个或多个资源块组成的资源块组分配给终端，并且确定用于报告指示分配的资源块的分配信息的控制信号的数量。

公开(公告)号：US20110002282A1

公开(公告)日：2011-01-06

申请号：US12735993

申请日：2009-03-18

申请人： Takamichi Inoue ,  Kenji Koyanagi ,  Le Liu ,  Yoshikazu Kakura

发明人： Takamichi Inoue ,  Kenji Koyanagi ,  Le Liu ,  Yoshikazu Kakura

IPC分类号： H04W72/04

CPC分类号： H04W72/0453 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0041 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/0057 ,  H04L5/006 ,  H04L5/0064 ,  H04L5/0094 ,  H04L27/2614 ,  H04W72/0406 ,  H04W72/0413 ,  H04W72/042 ,  H04W88/02 ,  H04W88/08

摘要： The problem is that, in a mobile wireless system, when more than one frequency block composed of resource blocks that are consecutive on a frequency axis is assigned to one mobile station, the multi-diversity effect due to scheduling increases by the number of assigned frequency blocks being increased, but the overhead caused by the scheduling information increases. Accordingly, there is a tradeoff between the multi-diversity effect and the scheduling overhead. However, when the aforementioned tradeoff was considered with OFDM and SC-FDMA, the same fixed number of frequency blocks would have been used for all mobile stations. Accordingly, an optimization that takes into account the tradeoff between the multi-diversity effect and scheduling overhead has not been sufficiently achieved. In a wireless communication system, the maximum frequency block number, which is the maximum number of the aforementioned frequency blocks assigned to the same mobile station, is set based on system information, which is information pertaining to the base station installation environment and the mobile station or the mobile station's communication status, and the base station assigns no more resource blocks than the aforementioned maximum frequency block number.

摘要翻译： 问题在于，在移动无线系统中，当将由频率轴上连续的资源块组成的多个频率块分配给一个移动台时，由调度引起的多分集效应增加分配频率的数量 块增加，但由调度信息引起的开销增加。 因此，在多分集效应和调度开销之间存在折衷。 然而，当使用OFDM和SC-FDMA考虑上述权衡时，相同的固定数量的频率块将已经用于所有移动台。 因此，考虑到多分集效应和调度开销之间的折衷的优化尚未充分实现。 在无线通信系统中，基于作为与基站安装环境和移动台有关的信息的系统信息，设定作为分配给同一移动站的上述频率块的最大数量的最大频率块号 或移动台的通信状态，并且基站不再分配比上述最大频率块号更多的资源块。

公开(公告)号：US20090011765A1

公开(公告)日：2009-01-08

申请号：US12281280

申请日：2007-03-01

申请人： Takamichi Inoue ,  Yoshikazu Kakura

发明人： Takamichi Inoue ,  Yoshikazu Kakura

IPC分类号： H04Q7/36

CPC分类号： H04J13/16 ,  H04W16/02 ,  H04W72/0413 ,  H04W72/042

摘要： An object of the present invention is to reduce the amount of calculation performed in a mobile station and amount of information exchanged between a base station and mobile station in a mobile communication system where the base station autonomously assigns a scramble code. In the mobile communication system, the base station starts communication by using a predetermined initialization scramble code used only at its activation time. The mobile station positioned in a cell determines whether the scramble code identified upon cell search time is the initialization scramble code. Only when the scramble code is the initialization scramble code, the mobile station determines a candidate scramble code, determines whether the candidate scramble code is usable in communication, and notifies the base station of the control information including the determination result. Based on the control information, the base station determines a service scramble code to be used, from the candidate scramble codes, and applies the service scramble code to start communication.

摘要翻译： 本发明的一个目的是减少在移动台中进行的计算量以及在基站自主分配扰频码的移动通信系统中在基站与移动台之间交换的信息量。 在移动通信系统中，基站通过使用仅在其激活时间使用的预定的初始化扰码开始通信。 位于小区中的移动台确定在小区搜索时间识别的扰码是否是初始化扰码。 只有当密码是初始化密码时，移动台才能确定候选密码，确定候选密码是否可用于通信，并向基站通知包含确定结果的控制信息。 基于控制信息，基站从候选扰码确定要使用的服务扰码，并应用服务扰码开始通信。

公开(公告)号：US20080049668A1

公开(公告)日：2008-02-28

申请号：US11841021

申请日：2007-08-20

申请人： Yoshikazu KAKURA ,  Shousei Yoshida ,  Takamichi Inoue

发明人： Yoshikazu KAKURA ,  Shousei Yoshida ,  Takamichi Inoue

IPC分类号： H04Q7/00

CPC分类号： H04W72/042 ,  H04L1/20 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/0053 ,  H04L27/2602 ,  H04L27/2613

摘要： A reference signal of a user equipment to which a resource (LB#1) is allocated for a L1/L2 control signal, is allocated a resource (SB#1) that is closer on the time axis to the resource (LB#1), which the L1/L2 control signal is allocated, within the same frequency band as the L1/L2 control signal. A reference signal for CQI estimation, independent of a data signal and a L1/L2 control signal, is allocated a resource with which at least one of a reference signal for demodulation of a data signal and a reference signal for demodulation of a L1/L2 control signal is not transmitted at the same timing within the transmission band. The types of bandwidths of the reference signals multiplexed in a same short block within a same band are reduced, whereby restrictions as to the number of reference signal sequences that can be secured are diminished.

摘要翻译： 向L1 / L2控制信号分配资源（LB＃1）的用户设备的参考信号被分配在资源（LB＃1）的时间轴上更接近的资源（SB＃1） L1 / L2控制信号被分配在与L1 / L2控制信号相同的频带内。 分配与数据信号和L1 / L2控制信号无关的用于CQI估计的参考信号，用于解调数据信号的参考信号和解调L1 / L2的参考信号中的至少一个 在发送频带内的相同定时不发送控制信号。 减少在相同频带内的相同短块中多路复用的参考信号的带宽类型，从而减少了可以确保的参考信号序列的数量的限制。

公开(公告)号：US20070293233A1

公开(公告)日：2007-12-20

申请号：US11812424

申请日：2007-06-19

申请人： Takamichi Inoue ,  Yoshikazu Kakura

发明人： Takamichi Inoue ,  Yoshikazu Kakura

IPC分类号： H04Q7/20

CPC分类号： H04W72/085 ,  H04L1/0026 ,  H04L1/20 ,  H04L5/0048 ,  H04W24/10

摘要： A channel quality measurement method that accomplishes efficient channel quality measurement for each mobile station is presented. In a frequency band including a plurality of frequency blocks, a base station measures the channel quality of each of a plurality of mobile stations. With respect to each mobile station, when a pilot resource for demodulation is not allocated in at least one of the frequency blocks, the base station allocates a specific pilot resource for channel quality measurement in that frequency block. The channel quality of each mobile station in the plurality of frequency blocks is measured by using one or both of the pilot resource for demodulation and the dedicated pilot resource for channel quality measurement.

摘要翻译： 提出了实现每个移动台的高效信道质量测量的信道质量测量方法。 在包括多个频率块的频带中，基站测量多个移动台中的每一个的信道质量。 对于每个移动站，当在至少一个频率块中没有分配用于解调的导频资源时，基站在该频率块中分配用于信道质量测量的特定导频资源。 通过使用用于解调的导频资源和用于信道质量测量的专用导频资源中的一个或两个来测量多个频率块中的每个移动台的信道质量。