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1. 发明专利

JP2012231469A Radio communication method, radio communication system, and radio base station device 有权
标题翻译：无线电通信方法，无线电通信系统和无线电基站设备
公开(公告)号：JP2012231469A
公开(公告)日：2012-11-22
申请号：JP2012110446
申请日：2012-05-14
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： FUJISHIMA KENZABURO , TAIRA MASANORI
IPC分类号： H04W24/10 , H04B7/10 , H04J99/00 , H04W16/28
摘要： PROBLEM TO BE SOLVED: To provide a radio communication method in which a radio base station receives downlink communication quality from a radio terminal device and transmits data to the radio terminal device on the basis of the downlink communication quality.SOLUTION: A radio base station device: generates a prediction pilot for predicting downlink communication quality after predetermined time; transmits the prediction pilot to a radio terminal device prior to transmitting data after the predetermined time; generates a detection pilot by which the radio terminal device processes the data; and transmits the detection pilot to the radio terminal device after the predetermined time. Directional gain of the prediction pilot and that of the detection pilot are the same.
摘要翻译：解决的问题：提供无线基站从无线终端装置接收下行链路通信质量并基于下行链路通信质量向无线终端装置发送数据的无线通信方法。解决方案：无线基站装置：在规定时间后生成用于预测下行通信质量的预测导频，在预定时间之后发送数据之前将预测导频发送到无线终端装置; 生成无线终端装置对该数据进行处理的检测导频; 并且在所述预定时间之后将所述检测导频发送到所述无线终端装置。预测导频和检测导频的定向增益相同。版权所有（C）2013，JPO＆INPIT

2. 发明专利

JP2012204974A Wireless communication system, base station device, and wireless communication method 有权
标题翻译：无线通信系统，基站设备和无线通信方法
公开(公告)号：JP2012204974A
公开(公告)日：2012-10-22
申请号：JP2011066063
申请日：2011-03-24
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： FUJISHIMA KENZABURO , TAMAKI TAKESHI , JIA YUNJIAN , ISHIDA HITOSHI
IPC分类号： H04W16/28 , H04B7/10 , H04J1/00 , H04J11/00 , H04J99/00
CPC分类号： H04W72/085
摘要： PROBLEM TO BE SOLVED: To assure a wireless communication quality of a constant level or above to each terminal device performing wireless communication with a base station device, and to increase the number of the terminal devices that can be accommodated by the base station device under a condition for assuring the wireless communication quality.SOLUTION: A wireless communication system has: a base station device having a plurality of antennas; and a terminal device performing wireless communication with a first antenna group configured by the one or more antennas. In the wireless communication system, the first antenna group can be configured for each terminal device, and addition or deletion of the antennas to or from the first antenna group of the terminal is performed based on a communication quality for each terminal device so that the number of the antennas configuring the first antenna group becomes the minimum within a range satisfying a request value of the communication quality between the base station device and the terminal device (S1107-S1113 and the like).
摘要翻译：要解决的问题：为了确保与基站设备进行无线通信的每个终端设备的恒定等级或更高的无线通信质量，并且增加基站可以容纳的终端设备的数量设备在确保无线通信质量的条件下。解决方案：无线通信系统具有：具有多个天线的基站设备; 以及执行与由所述一个或多个天线配置的第一天线组的无线通信的终端设备。在无线通信系统中，可以为每个终端装置配置第一天线组，并且基于每个终端装置的通信质量来执行到终端的第一天线组的天线的添加或删除，构成第一天线组的天线在满足基站装置与终端装置之间的通信质量的请求值的范围内成为最小（S1107〜S1113等）。版权所有（C）2013，JPO＆INPIT

3. 发明专利

JP2012169741A Distributed antenna system, base station device and radio resource control method 有权
标题翻译：分布式天线系统，基站设备和无线电资源控制方法
公开(公告)号：JP2012169741A
公开(公告)日：2012-09-06
申请号：JP2011027128
申请日：2011-02-10
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ISHIDA HITOSHI , FUJISHIMA KENZABURO , JIA YUNJIAN
IPC分类号： H04W16/04 , H04W72/04
CPC分类号： H04B7/0691 , H04B7/0834 , H04L5/0023 , H04W72/046 , H04W88/085
摘要： PROBLEM TO BE SOLVED: To cut down an unbalanced number of terminals using respective antennas, while also reducing degradation in communication quality, in a distributed antenna system where antennas are selected according to terminal positions.SOLUTION: In a distributed antenna system where a large number of antennas are distributed arranged within the system, antenna groups each consisting of plural antennas having good communication quality are selected according to terminal positions, and for a terminal 2-1 using an antenna 1-6 having load concentrated thereon, some antennas in an antenna group 3-1 with which the terminal 2-1 communicates are changed to organize a new antenna group, or an antenna group 3-6, based on the communication quality and load condition of the current antenna group and the communication quality and load condition of an altered antenna group derived by changing some antennas in the current antenna group.
摘要翻译：要解决的问题：在根据终端位置选择天线的分布式天线系统中，使用各个天线来减少不平衡数量的终端，同时还减少通信质量的降低。解决方案：在系统内分布有大量天线的分布式天线系统中，根据终端位置选择由具有良好通信质量的多个天线组成的天线组，对于使用负载集中在其上的天线1-6，基于通信质量和负载，终端2-1通信的天线组3-1中的一些天线被改变以组织新天线组或天线组3-6 当前天线组的条件以及通过改变当前天线组中的一些天线而导出的改变的天线组的通信质量和负载状况。版权所有（C）2012，JPO＆INPIT

4. 发明专利

JP2007259077A Wireless communication method 有权
标题翻译：无线通信方法
公开(公告)号：JP2007259077A
公开(公告)日：2007-10-04
申请号：JP2006080897
申请日：2006-03-23
申请人： Hitachi Communication Technologies Ltd , Hitachi Ltd , 株式会社日立コミュニケーションテクノロジー , 株式会社日立製作所
发明人： TAIRA MASANORI , FUJISHIMA KENZABURO , UENO KOJU
IPC分类号： H04B1/7103 , H04J13/00 , H04W16/02 , H04W16/24 , H04W16/28 , H04W72/04 , H04W92/20
CPC分类号： H04B7/024 , H04W16/24 , H04W16/28
摘要： PROBLEM TO BE SOLVED: To provide a wireless communication method whereby communication is carried out at a data rate suitable for an interference state of slots for receiving data so as to prevent a packet loss and degradation of a throughput.
SOLUTION: A terminal 211 measures pilot signals transmitted from an adjacent cell and its own station cell in a directive pattern (beams) and respectively estimates the reception quality when interference exists (is strong) in the adjacent cell and when no interference exists (is weak) in the adjacent cell. The terminal 211 requests a base station 201 to provide a data rate request value (DRC1) in response to the received quality in the presence of the interference and a data rate request value (DRC2) in response to the received quality in the absence of the interference. The base station 201 shares a beam direction schedule with an adjacent cell base station and confirms the presence/absence of the interference on the terminal 211 by each slot. The base station 201 selects a proper down data rate from two values requested from the terminal 211 depending on the presence/absence of the interference and modulates data and transmits the resulting data.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决的问题：提供一种无线通信方法，其中以适合于接收数据的时隙的干扰状态的数据速率进行通信，以防止分组丢失和吞吐量的劣化。解决方案：终端211以指示模式（波束）测量从相邻小区及其本站小区发送的导频信号，并且当相邻小区中存在干扰（强）且当不存在干扰时分别估计接收质量（弱）在相邻的单元格。终端211请求基站201在存在干扰的情况下响应于接收到的质量提供数据速率请求值（DRC1），并且响应于在没有接收到的质量的情况下的接收质量，数据速率请求值（DRC2）干扰。基站201与相邻小区基站共享波束方向调度，并且通过每个时隙确认终端211的干扰的存在/不存在。基站201根据干扰的存在/不存在，从终端211请求的两个值中选择适当的下行数据速率，并且对数据进行调制并发送。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JP2006019846A Wireless communication base station 有权
标题翻译：无线通信基站
公开(公告)号：JP2006019846A
公开(公告)日：2006-01-19
申请号：JP2004193330
申请日：2004-06-30
申请人： Hitachi Advanced Syst:Kk , Hitachi Communication Technologies Ltd , Hitachi Ltd , 株式会社日立アドバンストシステムズ , 株式会社日立コミュニケーションテクノロジー , 株式会社日立製作所
发明人： KUWABARA MIKIO , FUJISHIMA KENZABURO , TAIRA MASANORI , MEGURO KOJI , OKAMOTO TORU
IPC分类号： H04B7/06 , H04B7/08 , H04B7/10 , H04B7/26 , H04W16/28
CPC分类号： H04W16/28
摘要： PROBLEM TO BE SOLVED: To provide a base station determining a weight of an array antenna for transmission in a short period of time and carrying out the weighting.
SOLUTION: The wireless communication base station is provided with: the array antenna for transmitting packets to terminals; a packet scheduler for determining the transmission order of the packets; a modulator for generating a modulation signal on the basis of the packets; and a transmission beam shaping section for multiplying a transmission array weight with the packets and outputting the result to the array antenna, and the base station transmits the packets to a plurality of the terminals. The transmission beam shaping section is characterized in that it includes a table for storing terminal IDs and the transmission purpose array weights in cross-reference with each other, receives a terminal ID from the packet scheduler and references the table to select the transmission array weight on the basis of the terminal ID.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一个基站在短时间内确定用于传输的阵列天线的权重并执行加权。解决方案：无线通信基站设置有用于向终端发送分组的阵列天线; 分组调度器，用于确定分组的传输顺序; 调制器，用于基于分组产生调制信号; 以及用于将传输阵列权重与分组相乘并将结果输出到阵列天线的发射波束整形部分，并且基站将分组发送到多个终端。发送波束整形部的特征在于，具有用于存储终端ID和彼此交叉引用的发送目的数组权重的表，从分组调度器接收终端ID，并引用表来选择发送数组权重终端ID的基础。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2014007756A Equipment and method for dynamic clustering of radio base station in mobile communication 审中-公开
标题翻译：无线电基站在移动通信中的动态聚类的设备和方法
公开(公告)号：JP2014007756A
公开(公告)日：2014-01-16
申请号：JP2013174757
申请日：2013-08-26
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： JIA YUNJIAN , FUJISHIMA KENZABURO , YOSHIUCHI HIDEYA , YANG PENG , MA YUANCHEN , GENG LU , ZHOU SHENG , NIU ZHISHENG , GONG JIE
IPC分类号： H04W28/16 , H04W16/28 , H04W92/20
CPC分类号： H04W72/044 , H04B7/024 , H04L5/0035 , H04W28/16 , H04W72/0406 , H04W72/0426 , H04W92/20
摘要： PROBLEM TO BE SOLVED: To provide a radio communication method, a radio base station, and a radio communication system, capable of reducing signaling and resource consumption for use for the calculation of base station clustering, by selecting optimal base station clustering according to a communication state between a terminal and each base station.SOLUTION: In the radio communication method of the present invention, a first base station communicating with the terminal transmits a request message for consulting cooperative transmission to a second base station that communicates with the terminal in cooperation with the first base station. On the basis of the received request message, the second base station transmits response signaling to the first base station.
摘要翻译：要解决的问题：提供一种能够通过根据通信选择最佳基站聚类来减少用于计算基站聚类的信令和资源消耗的无线电通信方法，无线电基站和无线电通信系统状态。解决方案：在本发明的无线通信方法中，与终端通信的第一基站向与终端进行通信的第二基站发送用于咨询协作传输的请求消息，第一个基站。基于接收到的请求消息，第二基站向第一基站发送响应信令。

7. 发明专利

JP2013066060A Radio communication system and base station 有权
标题翻译：无线电通信系统和基站
公开(公告)号：JP2013066060A
公开(公告)日：2013-04-11
申请号：JP2011203534
申请日：2011-09-16
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： FUJISHIMA KENZABURO , TAMAKI TAKESHI , KATAYAMA RINTARO , ISHIDA HITOSHI
IPC分类号： H04W36/20 , H04W36/04 , H04W36/38
CPC分类号： H04W36/20 , H04W36/08
摘要： PROBLEM TO BE SOLVED: To reduce uplink interference power in a network in which a first base station having relatively high output and a second base station having relatively low output coexist.SOLUTION: When a second base station detects large uplink interference power, the second base station will facilitate handover processing to a first base station so that a terminal causing the large uplink interference power will be handed over from the first base station to the second base station. In a radio communication system, there are a plurality of base stations and one or more terminals, and each terminal connects to one base station, and changes a connection destination base station depending on the communication state of its terminal, i.e., performs so-called handover. When the second base station different from the first base station to which the terminal is connected detects large interference, the second station will perform multicast transmission of information to facilitate handover to the plurality of base stations other than the second base station. A base station that received the information identifies the terminal causing interference with the second base station and hands it over to the second base station.
摘要翻译：要解决的问题：为了减少具有相对较高输出的第一基站和具有相对低输出的第二基站共存的网络中的上行干扰功率。解决方案：当第二基站检测到大的上行链路干扰功率时，第二基站将促进对第一基站的切换处理，使得导致大的上行链路干扰功率的终端将从第一基站切换到第二基站。在无线通信系统中，存在多个基站和一个以上的终端，各终端与一个基站连接，根据终端的通信状态改变连接目的地基站，即，进行所谓的交出。当与终端所连接的第一基站不同的第二基站检测到大的干扰时，第二站将执行信息的多播传输，以便切换到第二基站以外的多个基站。接收到该信息的基站识别终端，造成与第二基站的干扰，并将其交给第二基站。版权所有（C）2013，JPO＆INPIT

8. 发明专利

JP2012120063A Radio base station device to control antenna transmission power 有权
标题翻译：无线基站设备来控制天线传输功率
公开(公告)号：JP2012120063A
公开(公告)日：2012-06-21
申请号：JP2010269877
申请日：2010-12-03
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KANZAKI HAJIME , FUJISHIMA KENZABURO , KUWABARA MIKIO , TSUNEHARA KATSUHIKO
IPC分类号： H04W52/24 , H04B7/04 , H04J1/00 , H04J11/00 , H04J99/00 , H04W16/28 , H04W72/04 , H04W88/08
CPC分类号： H04B17/005 , H04B7/0426 , H04B7/068 , H04B17/24 , H04B17/345
摘要： PROBLEM TO BE SOLVED: To provide a radio base station unit capable of using an appropriate antenna in response to a requirement from a terminal station even in a multicarrier and MIMO-applied system where inter-cell interferences differ depending on each antenna direction because a plurality of frequency bands are used at its neighboring base stations in various patterns.SOLUTION: This radio communication system, which is equipped with radio communication means using a plurality of frequency bands and a plurality of antennas, changes each antenna's transmission power in accordance with an interference of each band frequency from a neighboring base station for each antenna direction. Furthermore, it also estimates the number of antennas required for a transmission in response to a requirement from a terminal station, determines the necessary antennas from an antenna direction where the terminal station exists and changes each antenna's transmission power again.
摘要翻译：要解决的问题：提供一种能够响应于来自终端站的要求使用适当天线的无线电基站单元，即使在多载波和MIMO应用系统中，其中小区间干扰根据每个天线方向而不同因为在其相邻基站处以各种模式使用多个频带。解决方案：配备有使用多个频带和多个天线的无线电通信装置的无线电通信系统根据每个频带来自相邻基站的每个频带的干扰来改变每个天线的发射功率天线方向。此外，还根据来自终端的要求来估计发送所需的天线数量，从终端站的天线方向确定必要的天线，并再次改变各天线的发送功率。版权所有（C）2012，JPO＆INPIT

9. 发明专利

JP2012119886A Radio communication system, connection establishing method, and device 有权
标题翻译：无线电通信系统，连接建立方法和设备
公开(公告)号：JP2012119886A
公开(公告)日：2012-06-21
申请号：JP2010267066
申请日：2010-11-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SAITO TOSHIYUKI , FUJISHIMA KENZABURO , TSUNEHARA KATSUHIKO
IPC分类号： H04W76/02 , H04W16/26
摘要： PROBLEM TO BE SOLVED: To make it possible for a terminal which is mostly stationary like a relay station to establish connections with multiple master base stations although a terminal is not permitted to establish multiple connections simultaneously.SOLUTION: In order to allow a terminal expected to use multiple connections simultaneously to establish multiple connections, "replication request" information requesting not to remove an existing connection is added to a connection establishment request from the terminal. It is determined whether the replication request exists or not (206), and if the replication request exists, a connection establishment request is transmitted to a gateway device without removing an existing connection the terminal has already established (209). Thus, the terminal establishes multiple radio connections with a network via multiple base stations, and even if radio communication with any one of the base stations is not possible, connection with the network is not completely cut off.
摘要翻译：要解决的问题：尽管终端不允许同时建立多个连接，但是使得像中继站一样大多数静止的终端可以建立与多个主基站的连接成为可能。解决方案：为了允许终端预期同时使用多个连接来建立多个连接，请求不删除现有连接的“复制请求”信息被添加到来自终端的连接建立请求。确定复制请求是否存在（206），并且如果存在复制请求，则将连接建立请求发送到网关设备而不去除终端已经建立的现有连接（209）。因此，终端经由多个基站与网络建立多个无线连接，即使与基站中的任何一个的无线电通信不可能，与网络的连接也不会完全切断。版权所有（C）2012，JPO＆INPIT

10. 发明专利

JP2012015572A Hierarchical distributed antenna system 审中-公开
标题翻译：分层分布式天线系统
公开(公告)号：JP2012015572A
公开(公告)日：2012-01-19
申请号：JP2010147061
申请日：2010-06-29
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： FUJISHIMA KENZABURO , SAITO TOSHIYUKI , TSUNEHARA KATSUHIKO , WAKAYAMA KOJI , TAKEUCHI TAKAAKI
IPC分类号： H04W28/00 , H04W16/28 , H04W16/32 , H04W36/14 , H04W72/04
摘要： PROBLEM TO BE SOLVED: To meet a necessity of preparing a multiplex transmission channel such as a time-multiplex channel and a wavelength-multiplex channel according to the number of physical antennas between a signal processing device and the physical antenna, in a distributed antenna system.SOLUTION: A first antenna network is composed of one part of antennas in the distributed antenna system, and has a physical antenna port for the antenna as an interface. A second antenna network is connected with a plurality of the first antenna networks, and has a logical antenna port as an interface for signal processing means which processes a signal transmitted/received to/from a wireless terminal. And the distributed antenna system has inter-network control means which controls a connection between the physical antenna port and the logical antenna port at a connection point between the first antenna network and the second antenna network.
摘要翻译：要解决的问题：为了满足根据信号处理装置和物理天线之间的物理天线的数量来准备诸如时间复用信道和波长复用信道的多路传输信道的必要性，在分布式天线系统。解决方案：第一天线网络由分布式天线系统中的一部分天线组成，并具有天线的物理天线端口作为接口。第二天线网络与多个第一天线网络连接，并且具有逻辑天线端口作为用于处理从/从无线终端发送/接收的信号的信号处理装置的接口。并且分布式天线系统具有网络间控制装置，其在第一天线网络和第二天线网络之间的连接点处控制物理天线端口和逻辑天线端口之间的连接。版权所有（C）2012，JPO＆INPIT

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