公开(公告)号：US20130005388A1

公开(公告)日：2013-01-03

申请号：US13634768

申请日：2011-03-23

申请人： Katsuyoshi Naka ,  Toyoki Ue ,  Takeshi Kanazawa

发明人： Katsuyoshi Naka ,  Toyoki Ue ,  Takeshi Kanazawa

IPC分类号： H04W52/18

CPC分类号： H04W52/244 ,  H04W24/10 ,  H04W28/04 ,  H04W52/143 ,  H04W52/247 ,  H04W84/045 ,  H04W88/08 ,  H04W92/20

摘要： A wireless terminal transmits a result of measuring received power of a downlink wireless signal from a femtocell base station to a macrocell base station. The macrocell base station transmits an interference control request including identification information of the wireless terminal to a femtocell base station group of which received power of a downlink signal included in a measurement result transmitted from the wireless terminal is a predetermined value or more. The femtocell base station has an adjacent wireless terminal list in which identification information of a wireless terminal, which is capable of being connected to an adjacent femtocell base station but is not capable of being connected to the femtocell base station, is recorded, and downlink transmission power of the femtocell base station is reduced when the identification information included in the interference control request is included in this list.

摘要翻译： 无线终端将从下游无线信号的接收功率测量的结果从毫微微小区基站发送到宏小区基站。 宏小区基站向包括在从无线终端发送的测量结果中的下行链路信号的接收功率的毫微微小区基站组作为预定值以上的毫微微小区基站组发送包括无线终端的识别信息的干扰控制请求。 毫微微小区基站具有相邻的无线终端列表，其中记录能够连接到相邻毫微微小区基站但不能连接到毫微微小区基站的无线终端的识别信息，并且下行链路传输 当干扰控制请求中包括的识别信息被包括在该列表中时，毫微微小区基站的功率减小。

公开(公告)号：US09037184B2

公开(公告)日：2015-05-19

申请号：US13634768

申请日：2011-03-23

申请人： Katsuyoshi Naka ,  Toyoki Ue ,  Takeshi Kanazawa

发明人： Katsuyoshi Naka ,  Toyoki Ue ,  Takeshi Kanazawa

IPC分类号： H04B7/00 ,  H04W52/24 ,  H04W24/10 ,  H04W84/04 ,  H04W28/04 ,  H04W52/14 ,  H04W88/08 ,  H04W92/20

CPC分类号： H04W52/244 ,  H04W24/10 ,  H04W28/04 ,  H04W52/143 ,  H04W52/247 ,  H04W84/045 ,  H04W88/08 ,  H04W92/20

摘要： A wireless terminal transmits a result of measuring received power of a downlink wireless signal from a femtocell base station to a macrocell base station. The macrocell base station transmits an interference control request including identification information of the wireless terminal to a femtocell base station group of which received power of a downlink signal included in a measurement result transmitted from the wireless terminal is a predetermined value or more. The femtocell base station has an adjacent wireless terminal list in which identification information of a wireless terminal, which is capable of being connected to an adjacent femtocell base station but is not capable of being connected to the femtocell base station, is recorded, and downlink transmission power of the femtocell base station is reduced when the identification information included in the interference control request is included in this list.

摘要翻译： 无线终端将从下游无线信号的接收功率测量的结果从毫微微小区基站发送到宏小区基站。 宏小区基站向包括在从无线终端发送的测量结果中的下行链路信号的接收功率的毫微微小区基站组作为预定值以上的毫微微小区基站组发送包括无线终端的识别信息的干扰控制请求。 毫微微小区基站具有相邻的无线终端列表，其中记录能够连接到相邻毫微微小区基站但不能连接到毫微微小区基站的无线终端的识别信息，并且下行链路传输 当干扰控制请求中包括的识别信息被包括在该列表中时，毫微微小区基站的功率减小。

公开(公告)号：US08750866B2

公开(公告)日：2014-06-10

申请号：US13813010

申请日：2011-07-08

申请人： Katsuyoshi Naka ,  Takeshi Kanazawa

发明人： Katsuyoshi Naka ,  Takeshi Kanazawa

IPC分类号： H04W4/00

CPC分类号： H04W8/06 ,  H04W24/10 ,  H04W48/06 ,  H04W84/045 ,  H04W88/10

摘要： A radio communication system includes a macrocell base station, and a femtocell base station provided in a macrocell. The femtocell base station includes: a measuring part which measures an uplink total received power from a radio terminal; a detecting part which detects a visitor macrocell radio terminal located in a vicinity of the femtocell base station operated by the access limited mode in accordance with the uplink total received power or an uplink interference signal power which can be derived from the uplink received power; and a control part which switches the femtocell base station from the access limited mode to the hybrid mode when the detecting part detects the visitor macrocell radio terminal. Accordingly, it is possible to improve the throughput for the visitor macrocell user.

摘要翻译： 无线电通信系统包括宏小区基站和设置在宏小区中的毫微微小区基站。 毫微微小区基站包括：测量部分，其测量来自无线终端的上行链路总接收功率; 检测部，其根据上行链路总接收功率或上行链路接收功率导出的上行链路干扰信号功率，检测位于由接入限制模式操作的毫微微小区基站附近的访问宏小区无线终端; 以及控制部，当所述检测部检测到所述访问者宏小区无线终端时，将所述毫微微小区基站从所述接入限制模式切换到所述混合模式。 因此，可以提高访问者宏小区用户的吞吐量。

公开(公告)号：US20130130679A1

公开(公告)日：2013-05-23

申请号：US13813010

申请日：2011-07-08

申请人： Katsuyoshi Naka ,  Takeshi Kanazawa

发明人： Katsuyoshi Naka ,  Takeshi Kanazawa

IPC分类号： H04W8/06

CPC分类号： H04W8/06 ,  H04W24/10 ,  H04W48/06 ,  H04W84/045 ,  H04W88/10

摘要： A radio communication system includes a macrocell base station, and a femtocell base station provided in a macrocell. The femtocell base station includes: a measuring part which measures an uplink total received power from a radio terminal; a detecting part which detects a visitor macrocell radio terminal located in a vicinity of the femtocell base station operated by the access limited mode in accordance with the uplink total received power or an uplink interference signal power which can be derived from the uplink received power; and a control part which switches the femtocell base station from the access limited mode to the hybrid mode when the detecting part detects the visitor macrocell radio terminal. Accordingly, it is possible to improve the throughput for the visitor macrocell user.

摘要翻译： 无线电通信系统包括宏小区基站和设置在宏小区中的毫微微小区基站。 毫微微小区基站包括：测量部分，其测量来自无线终端的上行链路总接收功率; 检测部，其根据上行链路总接收功率或上行链路接收功率导出的上行链路干扰信号功率，检测位于由接入限制模式操作的毫微微小区基站附近的访问宏小区无线终端; 以及控制部，当所述检测部检测到所述访问者宏小区无线终端时，将所述毫微微小区基站从所述接入限制模式切换到所述混合模式。 因此，可以提高访问者宏小区用户的吞吐量。

公开(公告)号：US07817610B2

公开(公告)日：2010-10-19

申请号：US11719485

申请日：2005-10-27

申请人： Katsuyoshi Naka ,  Masahiko Nanri

发明人： Katsuyoshi Naka ,  Masahiko Nanri

IPC分类号： H04W4/00 ,  H04L5/22 ,  H04L12/28 ,  H04J3/16

CPC分类号： H04L1/0026 ,  H04L1/1628 ,  H04L1/1671 ,  H04L1/1685 ,  H04L1/1854 ,  H04L1/20 ,  H04W28/06 ,  H04W84/12

摘要： A communication system which can control a data transmission properly and to which a Delayed Block ACK mode is applied, and a communication device constituting the communication system. A radio LAN base station (100) as the communication device comprises a transmission control unit (115) for transmitting a block ACK request, a pilot generation unit (104) for generating a pilot signal to measure a reception quality, and the transmission control unit (115) for transmitting the pilot signal before the block ACK having the reception quality information of the pilot signal added thereto is returned from a reception side in response to the block ACK request. A station (200) as the communication device comprises a transmission control unit (207) for controlling the transmission timing of the block ACK answering the block ACK request, a reception quality information generation unit (211) for generating the reception quality information of the pilot signal, and a block ACK generation unit (208) for adding the reception quality information to the block ACK.

摘要翻译： 可以适当地控制数据传输并且应用了延迟块ACK模式的通信系统以及构成通信系统的通信设备。 作为通信装置的无线电LAN基站（100）包括用于发送块ACK请求的发送控制单元（115），用于生成导频信号以测量接收质量的导频生成单元（104），以及发送控制单元 （115），用于在具有添加了导频信号的接收质量信息的块ACK之前发送导频信号，以响应于块ACK请求从接收侧返回。 作为通信装置的站（200）包括用于控制应答块ACK请求的块ACK的发送定时的发送控制单元（207），用于生成导频的接收质量信息的接收质量信息生成单元（211） 信号，以及用于将接收质量信息添加到块ACK的块ACK生成单元（208）。

公开(公告)号：US20090225875A1

公开(公告)日：2009-09-10

申请号：US11994628

申请日：2005-07-04

申请人： Lee Ying Loh ,  Katsuyoshi Naka

发明人： Lee Ying Loh ,  Katsuyoshi Naka

IPC分类号： H04K1/10 ,  H04B15/00

CPC分类号： H04L1/02 ,  H04B7/0623 ,  H04B7/0691 ,  H04L1/1812

摘要： A wireless communication method by which unnecessary retransmission request is suppressed and feedback information is reduced at the same time in a MIMO communication system. The wireless communication method is provided for transmitting signals by using a plurality of antennas (314), and has a step of applicably selecting the group configuration of the antennas (314), and a step of adding data to be used for error detection to a signal to be transmitted by using the antennas (314), by following the results of the selection.

摘要翻译： 一种在MIMO通信系统中同时抑制不必要的重传请求并减少反馈信息的无线通信方法。 提供无线通信方法，用于通过使用多个天线（314）发送信号，并且具有适用于选择天线（314）的组配置的步骤，以及将用于错误检测的数据添加到 信号通过使用天线（314）发送，通过跟随选择的结果。

公开(公告)号：US20090181669A1

公开(公告)日：2009-07-16

申请号：US12301740

申请日：2006-05-23

申请人： Katsuyoshi Naka ,  Hiroki Haga

发明人： Katsuyoshi Naka ,  Hiroki Haga

IPC分类号： H04W4/00 ,  H04B1/38

CPC分类号： H04L5/0007 ,  H04J11/0069 ,  H04L5/0037 ,  H04L5/0051 ,  H04L5/0064 ,  H04L27/2613 ,  H04L27/2626 ,  H04L27/2655 ,  H04L27/2662 ,  H04W72/0453

摘要： A radio base station apparatus having an improved cell search performance in a scalable bandwidth system. A base station (100) can flexibly assign communication bandwidths of terminals from support bandwidths included in cell bandwidths that are the greatest ones, which are used by the base stations, of support bandwidths supported by a scalable bandwidth system. The base station (100) comprises a frame forming part (160) that forms a frame in which the pattern of a frame synchronization sequence (P-SCH), which is placed in a predetermined one, having a smallest support bandwidth, of bands of cell bandwidths, differs according to the cell bandwidths; an IFFT part (170) that serves as a frame transmitting means for transmitting the foregoing frame; a GI inserting part (180); and a radio transmitting part (190).

摘要翻译： 一种在可扩展带宽系统中具有改进的小区搜索性能的无线电基站装置。 基站（100）可以灵活地分配由可扩展带宽系统支持的支持带宽的基站所使用的最大的小区带宽中的支持带宽的终端的通信带宽。 基站（100）包括：帧形成部分（160），其形成帧，其中放置在具有最小支持带宽的预定帧中的帧同步序列（P-SCH）的模式为 小区带宽根据小区带宽而不同; 作为用于发送前述帧的帧发送装置的IFFT部分（170）; GI插入部分（180）; 和无线电发送部分（190）。

公开(公告)号：US20090147734A1

公开(公告)日：2009-06-11

申请号：US11719485

申请日：2005-10-27

申请人： Katsuyoshi Naka ,  Masahiko Nanri

发明人： Katsuyoshi Naka ,  Masahiko Nanri

IPC分类号： H04W72/04

CPC分类号： H04L1/0026 ,  H04L1/1628 ,  H04L1/1671 ,  H04L1/1685 ,  H04L1/1854 ,  H04L1/20 ,  H04W28/06 ,  H04W84/12

摘要： A communication system which can control a data transmission properly and to which a Delayed Block ACK mode is applied, and a communication device constituting the communication system. A radio LAN base station (100) as the communication device comprises a transmission control unit (115) for transmitting a block ACK request, a pilot generation unit (104) for generating a pilot signal to measure a reception quality, and the transmission control unit (115) for transmitting the pilot signal before the block ACK having the reception quality information of the pilot signal added thereto is returned from a reception side in response to the block ACK request. A station (200) as the communication device comprises a transmission control unit (207) for controlling the transmission timing of the block ACK answering the block ACK request, a reception quality information generation unit (211) for generating the reception quality information of the pilot signal, and a block ACK generation unit (208) for adding the reception quality information to the block ACK.

摘要翻译： 可以适当地控制数据传输并且应用了延迟块ACK模式的通信系统以及构成通信系统的通信设备。 作为通信装置的无线电LAN基站（100）包括用于发送块ACK请求的发送控制单元（115），用于生成用于测量接收质量的导频信号的导频生成单元（104），以及发送控制单元 （115），用于在具有添加了导频信号的接收质量信息的块ACK之前发送导频信号，以响应于块ACK请求从接收侧返回。 作为通信装置的站（200）包括用于控制应答块ACK请求的块ACK的发送定时的发送控制单元（207），用于生成导频的接收质量信息的接收质量信息生成单元（211） 信号，以及用于将接收质量信息添加到块ACK的块ACK生成单元（208）。

公开(公告)号：US20080133996A1

公开(公告)日：2008-06-05

申请号：US11813303

申请日：2005-12-08

申请人： Katsuyoshi Naka ,  Keiji Takakusaki

发明人： Katsuyoshi Naka ,  Keiji Takakusaki

IPC分类号： G08C25/02 ,  G06F11/14

CPC分类号： H04L1/1874 ,  H04L1/1671 ,  H04L1/1887

摘要： A wireless communication apparatus capable of effectively controlling retransmission. In this wireless communication apparatus (100), a frame aggregation part (111) aggregates basic unit data units (e.g., MPDUs) and adds a header thereto to form an aggregated frame. In response to a retransmission request from a receiving station (wireless communication apparatus (200)) as to the aggregated frame, a frame dividing part (112) divides the data part of the aggregated frame into segmented data blocks to form segmented frames. A frame control part (170) classifies the segmented frames into some groups in accordance with the reception qualities, at the receiving station, of the segmented data blocks of the aggregated frame. A transmission control part (185) transmits only the segmented frames of a group the reception quality of which is below a predetermined level. In this way, the transmission efficiency can be improved as compared with the retransmission of the aggregated frame, whereby the system throughput can be improved and hence an effective retransmission control can be achieved.

摘要翻译： 一种能够有效地控制重发的无线通信装置。 在该无线通信装置（100）中，帧聚合部（111）聚合基本单位数据单元（例如，MPDU），并向其中添加标题以形成聚合帧。 响应于来自接收站（无线通信装置（200））关于聚合帧的重传请求，帧分割部分（112）将聚合帧的数据部分划分成分段数据块以形成分段帧。 帧控制部分（170）根据在接收站处的聚合帧的分段数据块的接收质量将分段帧分类成一些组。 发送控制部（185）仅发送其接收质量低于预定电平的组的分段帧。 以这种方式，与聚合帧的重传相比，可以提高传输效率，从而可以提高系统吞吐量，从而可以实现有效的重传控制。

公开(公告)号：US08577361B2

公开(公告)日：2013-11-05

申请号：US13128852

申请日：2009-11-27

申请人： Katsuyoshi Naka ,  Jinsong Duan

发明人： Katsuyoshi Naka ,  Jinsong Duan

IPC分类号： H04W24/00 ,  H04W4/00

CPC分类号： H04W52/244 ,  H04B1/707 ,  H04B1/7097 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04J11/0056 ,  H04W16/16 ,  H04W52/143 ,  H04W52/245 ,  H04W52/30 ,  H04W88/08

摘要： Disclosed are a wireless communication base station and a total transmission power regulating method that reduce interference to macrocell users near a femtocell and interference to neighboring femtocell users near the femtocell in a balanced manner, while ensuring throughput of the femtocell users. A reception power measuring unit (214) measures the reception power of a CPICH. A cell type discriminating unit (216) judges whether the received signal is a signal from a macro base station or a signal from a femto base station. When a signal from a macro base station is received, a total downlink transmission power setting unit (217) executes a first-stage interference regulation based on the strongest CPICH reception power value and calculates a tentative value for the total downlink transmission power of a femto base station (110). When a signal from a peripheral femto base station is received, the total downlink transmission power setting unit (217) executes a second-stage interference regulation within a fixed power regulation range for the second-stage interference regulation based on the strongest CPICH reception power value, and calculates a final total downlink transmission power value.

摘要翻译： 公开了一种在确保毫微微小区用户的吞吐量的同时，以平衡的方式减少对毫微微小区附近的宏小区用户的干扰以及对毫微微小区附近的相邻毫微微小区用户的干扰的无线通信基站和总发射功率调整方法。 接收功率测量单元（214）测量CPICH的接收功率。 小区类型判别单元（216）判断接收到的信号是来自宏基站的信号还是来自毫微微基站的信号。 当接收到来自宏基站的信号时，总下行链路发送功率设定单元（217）基于最强的CPICH接收功率值执行第一级干扰调整，并且计算毫微微总的下行链路发送功率的试探值 基站（110）。 当接收到来自外围毫微微基站的信号时，总下行链路发送功率设定单元（217）在基于最强的CPICH接收功率值的第二级干扰调整的固定功率调节范围内执行第二级干扰调整 ，并计算最终总下行链路发送功率值。