公开(公告)号：US20100159927A1

公开(公告)日：2010-06-24

申请号：US12443399

申请日：2007-09-26

申请人： Takeshi Toda ,  Taku Nakayama ,  Shingo Joko ,  Chiharu Yamazaki

发明人： Takeshi Toda ,  Taku Nakayama ,  Shingo Joko ,  Chiharu Yamazaki

IPC分类号： H04W48/20

CPC分类号： H04W48/16

摘要： The present invention relates to a cell search method for a multiband radio communication system including a mobile station and multiple base stations. The method includes the steps of: classifying base station information into multiple first categories on the basis of a cell size of each base station, the base station, information being information on the base stations; classifying the base station information into multiple second categories on the basis of a radio-frequency band of each base station; associating movement speeds with the respective first categories and with the respective second categories; acquiring a movement speed of the mobile station; selecting at least one of the first categories and at least one of the second categories on the basis of the acquired movement speed and the associations between the movement speeds and the respective first and second categories; creating a base station list on the basis of base station information which belongs to the selected first category and base station in information which belongs to the selected second category, the base station list being to be notified to the mobile station; notifying the mobile station of the base station list; and causing the mobile station to perform a cell search on the basis of the notified base station list.

摘要翻译： 本发明涉及一种包括移动站和多个基站的多频无线电通信系统的小区搜索方法。 该方法包括以下步骤：基于每个基站的小区大小，基站，作为基站信息的信息，将基站信息分类为多个第一类别; 基于每个基站的射频频带将基站信息分类为多个第二类别; 将移动速度与各自的第一类别和相应的第二类别相关联; 获取移动台的移动速度; 基于获取的移动速度和移动速度与相应的第一和第二类别之间的关联来选择第一类别和第二类别中的至少一个类别中的至少一个; 基于属于所选择的第一类别的基站信息和属于所选择的第二类别的信息来创建基站列表，将基站列表通知给移动台; 通知移动台的基站列表; 并且使得移动台基于所通知的基站列表执行小区搜索。

公开(公告)号：US09960892B2

公开(公告)日：2018-05-01

申请号：US14113789

申请日：2012-04-26

申请人： Chiharu Yamazaki ,  Masato Fujishiro

发明人： Chiharu Yamazaki ,  Masato Fujishiro

IPC分类号： H04L5/00 ,  H04W48/02 ,  H04W52/02 ,  H04W72/04 ,  H04W92/20 ,  H04W84/04 ,  H04W76/06 ,  H04W88/08 ,  H04W52/24

CPC分类号： H04L5/0037 ,  H04L5/001 ,  H04L5/0035 ,  H04L5/0044 ,  H04L5/0098 ,  H04W48/02 ,  H04W52/0206 ,  H04W52/244 ,  H04W72/0426 ,  H04W72/0453 ,  H04W76/34 ,  H04W84/045 ,  H04W88/08 ,  H04W92/20 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264

摘要： A macro base station MeNB in a mobile communication system that supports a carrier aggregation technology defined in a 3GPP standard, communicates with a pico base station PeNB #1 via an X2 interface. The macro base station MeNB transmits information to the pico base station PeNB the information being used when the pico base station PeNB determines a component carrier requested to be limitedly used by the macro base station MeNB or a component carrier requested to be released from use limitation by the macro base station MeNB.

公开(公告)号：US08971952B2

公开(公告)日：2015-03-03

申请号：US13508684

申请日：2010-11-09

申请人： Chiharu Yamazaki

发明人： Chiharu Yamazaki

IPC分类号： H04B7/00 ,  H04W52/24 ,  H04L5/00 ,  H04W52/34 ,  H04W72/08 ,  H04W52/14

CPC分类号： H04W52/243 ,  H04L5/0007 ,  H04L5/0035 ,  H04L5/0062 ,  H04L5/0073 ,  H04W52/143 ,  H04W52/146 ,  H04W52/244 ,  H04W52/343 ,  H04W72/082 ,  H04W92/20

摘要： A second radio base station (1B) receives, from a first radio base station (1A), both interference information for each of a plurality of resource blocks and a traffic amount ratio. Then, the second radio base station (1B) corrects, based on the received traffic amount ratio, the also received interference information for each resource block. Further, the second radio base station (1B) controls, based on the interference information as corrected for each resource block, the transmission power of a radio terminal (2B).

摘要翻译： 第二无线基站（1B）从第一无线基站（1A）接收用于多个资源块中的每一个的干扰信息和业务量比。 然后，第二无线基站（1B）根据接收到的业务量比率对每个资源块的接收到的干扰信息进行修正。 此外，第二无线基站（1B）基于对每个资源块进行了校正的干扰信息来控制无线终端（2B）的发送功率。

公开(公告)号：US20140051453A1

公开(公告)日：2014-02-20

申请号：US14113796

申请日：2011-04-28

申请人： Chiharu Yamazaki ,  Noriyoshi Fukuta

发明人： Chiharu Yamazaki ,  Noriyoshi Fukuta

IPC分类号： H04W28/24

CPC分类号： H04W28/24 ,  H04W16/10

摘要： A base station (eNB 100) is defined by 3GPP standards and includes a control unit (140) that, in a case where an uplink signal transmitted from a wireless terminal (UE) being served by another base station to this other base station is detected, determines the frequency band to be assigned to a wireless terminal (UE) being served by the base station (eNB 100) on the basis of the frequency band of the detected uplink signal. At least in to the other base station, the frequency band of a downlink signal is made to correspond with the frequency band of the uplink signal.

摘要翻译： 基站（eNB 100）由3GPP标准定义，并且包括控制单元（140），在从另一个基站向另一个基站服务的无线终端（UE）发送的上行链路信号被检测到的情况下 基于所检测到的上行链路信号的频带，确定要分配给由基站（eNB 100）服务的无线终端（UE）的频带。 至少在另一个基站中，使下行链路信号的频带与上行链路信号的频带相对应。

公开(公告)号：US20140051427A1

公开(公告)日：2014-02-20

申请号：US14113791

申请日：2012-04-26

申请人： Chiharu Yamazaki ,  Masato Fujishiro

发明人： Chiharu Yamazaki ,  Masato Fujishiro

IPC分类号： H04W16/14

CPC分类号： H04W16/14 ,  H04L5/001 ,  H04L5/0032 ,  H04L5/0098 ,  H04W16/16 ,  H04W72/0426 ,  H04W92/20

摘要： A pico base station PeNB #1 in a mobile communication system that supports a carrier aggregation technology defined in a 3GPP standard, is configured to communicate with a macro base station MeNB via an X2 interface. The pico base station PeNB #1 transmits information to the macro base station MeNB, the information being used when the macro base station MeNB determines a component carrier that is limitedly used, or a component carrier which is released from use limitation.

摘要翻译： 支持在3GPP标准中定义的载波聚合技术的移动通信系统中的微微基站PeNB＃1被配置为经由X2接口与宏基站MeNB进行通信。 微微基站PeNB＃1向宏基站MeNB发送信息，当宏基站MeNB确定有限的分量载波时使用的信息，或从使用限制中释放的分量载波。

公开(公告)号：US20140044087A1

公开(公告)日：2014-02-13

申请号：US14113789

申请日：2012-04-26

申请人： Chiharu Yamazaki ,  Masato Fujishiro

发明人： Chiharu Yamazaki ,  Masato Fujishiro

IPC分类号： H04L5/00

CPC分类号： H04L5/0037 ,  H04L5/001 ,  H04L5/0035 ,  H04L5/0044 ,  H04L5/0098 ,  H04W48/02 ,  H04W52/0206 ,  H04W52/244 ,  H04W72/0426 ,  H04W72/0453 ,  H04W76/34 ,  H04W84/045 ,  H04W88/08 ,  H04W92/20 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264

摘要： A macro base station MeNB in a mobile communication system that supports a carrier aggregation technology defined in a 3GPP standard, communicates with a pico base station PeNB #1 via an X2 interface. The macro base station MeNB transmits information to the pico base station PeNB the information being used when the pico base station PeNB determines a component carrier requested to be limitedly used by the macro base station MeNB or a component carrier requested to be released from use limitation by the macro base station MeNB.

摘要翻译： 支持在3GPP标准中定义的载波聚合技术的移动通信系统中的宏基站MeNB经由X2接口与微微基站PeNB＃1进行通信。 宏基站MeNB向微微基站PeNB发送信息，当微微基站PeNB确定由宏基站MeNB请求有限地使用的分量载波或被请求释放的分量载波使用限制时使用的信息 宏基站MeNB。

公开(公告)号：US08422960B2

公开(公告)日：2013-04-16

申请号：US12744905

申请日：2008-11-10

申请人： Chiharu Yamazaki

发明人： Chiharu Yamazaki

IPC分类号： H04B17/00

CPC分类号： H04B7/0617

摘要： A wireless communication apparatus 100 according to the present invention is provided with a transmission channel coefficient calculation unit 130-1, . . . for calculating a transmission channel coefficient in a transmission frequency band, for each of a plurality of antennas, by extrapolation based on a distribution of reception channel coefficients in a direction of frequency calculated by a reception channel coefficient calculation unit 120-1, . . . , and a transmission channel coefficient correction unit 170-11, . . . , when an absolute value of the transmission channel coefficient calculated by an absolute value calculation unit 140-1, . . . is greater than a threshold calculated by a threshold calculation unit 150 based on the reception channel coefficient as a result of a comparison by a comparison unit 160-1, . . . , for correcting the transmission channel coefficient such that the absolute value is matched with the threshold.

摘要翻译： 根据本发明的无线通信装置100具有传输信道系数计算单元130-1，...。 的。 的。 用于通过基于由接收信道系数计算单元120-1计算的频率方向上的接收信道系数的分布的外推来计算多个天线中的每一个的发送频带中的传输信道系数。 的。 的。 ，以及传输信道系数校正单元170-11。 的。 的。 当由绝对值计算单元140-1计算出的传输信道系数的绝对值时。 的。 的。 作为比较单元160-1的比较结果，基于由接收信道系数计算的阈值大于由阈值计算单元150计算的阈值。 的。 的。 ，用于校正传输信道系数，使得绝对值与阈值匹配。

公开(公告)号：US20130072202A1

公开(公告)日：2013-03-21

申请号：US13700126

申请日：2011-05-27

申请人： Kazutaka Nakamura ,  Chiharu Yamazaki ,  Taku Nakayama ,  Shingo Joko ,  Yoshimasa Kusano

发明人： Kazutaka Nakamura ,  Chiharu Yamazaki ,  Taku Nakayama ,  Shingo Joko ,  Yoshimasa Kusano

IPC分类号： H04W28/08

CPC分类号： H04W72/0406 ,  H04W16/08 ,  H04W28/0247 ,  H04W28/0289 ,  H04W28/08 ,  H04W36/22 ,  H04W72/04 ,  H04W72/0426 ,  H04W72/0486 ,  H04W92/20

摘要： A radio base station (eNB10-1) transmits a Resource Status Update message including first load information indicating the load level thereof to a radio base station (eNB10-2) when the load level thereof is less than a first threshold, and omits the transmission of the Resource Status Update message including the first load information when the load level thereof is the first threshold or more.

摘要翻译： 无线电基站（eNB10-1）当其负载水平小于第一阈值时，将包括指示其负载水平的第一负载信息的资源状态更新消息发送到无线电基站（eNB10-2），并且省略该发送 的资源状态更新消息，其包括当其负载水平为第一阈值或更多时的第一负载信息。

公开(公告)号：US20130072201A1

公开(公告)日：2013-03-21

申请号：US13700122

申请日：2011-05-27

申请人： Kazutaka Nakamura ,  Chiharu Yamazaki ,  Taku Nakayama ,  Shingo Joko ,  Yoshimasa Kusano

发明人： Kazutaka Nakamura ,  Chiharu Yamazaki ,  Taku Nakayama ,  Shingo Joko ,  Yoshimasa Kusano

IPC分类号： H04W28/08

CPC分类号： H04W16/08 ,  H04W36/22 ,  H04W72/0426 ,  H04W72/0486 ,  H04W92/20

摘要： A radio base station (eNB1), which is used in a radio communication system that can autonomously adjust, based on load information transmitted/received between radio base stations, the radio base station parameters used for defining coverage, comprises: a network communication unit (140) that can receive, from another radio base station, first load information indicating the load level of the other radio base station and that can transmit, to the other radio base station, a request for transmission of second load information the information amount of which is greater than that of the first load information; and a control unit (120) that, when the load level of the other radio base station indicated by the received first load information satisfies a given condition, controls such that the request for transmission of the second load information is transmitted to the other radio base station.

摘要翻译： 一种无线电基站（eNB1），用于能够根据无线基站之间发送/接收的负载信息自主调整用于定义覆盖的无线基站参数的无线通信系统，包括：网络通信单元 140），其可以从另一个无线电基站接收首先加载指示另一个无线电基站的负载水平的信息，并且可以向另一个无线电基站发送第二负载信息的发送请求，该第二负载信息的信息量 大于第一载荷信息; 以及控制单元（120），当由所接收的第一负载信息指示的另一无线电基站的负载水平满足给定条件时，控制使得第二负载信息的发送请求被发送到另一无线电基站 站。

公开(公告)号：US08243691B2

公开(公告)日：2012-08-14

申请号：US12593819

申请日：2008-03-25

申请人： Chiharu Yamazaki ,  Kugo Morita

发明人： Chiharu Yamazaki ,  Kugo Morita

IPC分类号： H04W4/00

CPC分类号： H04B7/0617 ,  H04W72/046 ,  H04W72/082

摘要： A communication control method for a communication system stores location information indicating an interference region by neighboring wireless base stations, a first weighting factor for one wireless base station to direct its beam to the interference region, and a second weighting factor for the other wireless base station to direct its beam, correspondingly to one another in an interference table The system judges whether a terminal is located in the interference region by obtaining weighting factors adopted by each of the neighboring wireless base stations while the one wireless base station communicates with the terminal, compares the weighting factors to the first and second weighting factors stored in the interference table, and controls beam generation of the other wireless base station to prevent its interference when the terminal is located in the interference region.

摘要翻译： 用于通信系统的通信控制方法存储指示相邻无线基站的干扰区域的位置信息，一个无线基站将其波束引导到干扰区域的第一加权因子，以及另一无线基站的第二加权因子 在干扰表中彼此对应地引导其波束。在一个无线基站与终端通信的同时，通过获得每个相邻无线基站采用的加权因子来判断终端是否位于干扰区域中 对存储在干扰表中的第一和第二加权因子的加权因子，并且控制另一无线基站的波束产生，以防止当终端位于干扰区域时的干扰。