公开(公告)号：EP2547155B1

公开(公告)日：2019-05-22

申请号：EP11753437.0

申请日：2011-03-10

申请人： Nippon Telegraph And Telephone Corporation

发明人： MURAKAMI Tomoki ,  KUDO Riichi ,  ICHIKAWA Takeo ,  TAKATORI Yasushi ,  MATSUI Munehiro ,  ASAI Yusuke ,  MIZOGUCHI Masato

IPC分类号： H04B7/0452 ,  H04B5/00 ,  H04W52/24 ,  H04W72/04 ,  H04W72/08 ,  H04L5/00 ,  H04B17/345

公开(公告)号：EP3166352A1

公开(公告)日：2017-05-10

申请号：EP15833321.1

申请日：2015-08-20

申请人： Nippon Telegraph and Telephone Corporation

发明人： KUDO Riichi ,  ABEYSEKERA Hirantha Sithira ,  TAKATORI Yasushi ,  ICHIKAWA Takeo ,  ASAI Yusuke ,  MIZOGUCHI Masato

IPC分类号： H04W16/14 ,  H04W72/08 ,  H04W76/02

摘要： A wireless communication system includes a plurality of terminal apparatuses that perform communication using a first frequency band in which communication based on a random access scheme is performed and a second frequency band which is different from the first frequency band, a first base station apparatus that performs communication using the first frequency band, a second base station apparatus that performs communication using the second frequency band, and a cooperation control apparatus that selects a terminal apparatus that transmits user data via the first base station apparatus from among the plurality of terminal apparatuses based on information acquired by the first base station apparatus and the second base station apparatus. The cooperation control apparatus selects which of the first base station apparatus and the selected terminal apparatus acquires access right for transmission of the user data via the first base station apparatus, and notifies the selected terminal apparatus and the first base station apparatus of the selection result.

摘要翻译： 一种无线通信系统，包括终端装置的一个多元确实使用第一频带，在其中通信基于随机接入方案被执行，并且第二频带 - 所有这些是从所述第一频带不同，第一基站装置确实执行进行通信 使用所述第一频带的通信，第二基站装置使用所述第二频带那样进行通信，以及协调控制装置所做选择的终端装置经由所述第一基站装置从终端装置基于所述多个中没有发送用户数据 由所述第一基站装置和第二基站装置获取的信息。 协调控制装置选择其中所述第一基站装置的与所选择的终端装置获取权，用于经由所述第一基站装置的用户数据的传输通道，并通知所选择的终端装置和该选择结果的第一基站装置。

公开(公告)号：EP2863700A1

公开(公告)日：2015-04-22

申请号：EP13819690.2

申请日：2013-07-19

申请人： Nippon Telegraph and Telephone Corporation

发明人： ABEYSEKERA Hirantha Sithira ,  INOUE Yasuhiko ,  ASAI Yusuke ,  SHINOHARA Shoko ,  ICHIKAWA Takeo ,  MIZOGUCHI Masato

IPC分类号： H04W74/08 ,  H04J1/00 ,  H04J11/00 ,  H04J99/00 ,  H04W16/14 ,  H04W72/04

CPC分类号： H04L5/0007 ,  H04J1/00 ,  H04J11/00 ,  H04J11/005 ,  H04J11/0053 ,  H04J11/0063 ,  H04L1/18 ,  H04L1/1854 ,  H04L5/0023 ,  H04L5/0032 ,  H04L5/0035 ,  H04L5/0087 ,  H04L5/0098 ,  H04L27/0006 ,  H04W16/14 ,  H04W28/16 ,  H04W72/0426 ,  H04W74/0808

摘要： In order to provide a wireless communication system capable of improving the throughput of wireless communication by effectively using frequency resources, in a wireless communication system in which a first wireless access point which communicates with one or more wireless stations within a first cell by orthogonal frequency-division multiple access and a second wireless access point which is capable of performing carrier sensing with the first wireless access point and communicates with one or more wireless stations within a second cell by the orthogonal frequency-division multiple access operate in cooperation with each other, the first wireless access point includes an access right acquiring means which acquires an access right when data to be transmitted is generated; and a transmitting means of permission for use which transmits permission for use of channels which are not scheduled to use within the first cell, to the second wireless access point in a period in which the access right is acquired, and the second wireless access point includes a communication means which communicates with the wireless station within the second cell via the channel in which the permission for use is acquired.

摘要翻译： 为了提供一种能够通过有效利用频率资源来提高无线通信的吞吐量的无线通信系统，在通过正交频分多址通信与第一小区内的一个以上的无线站进行通信的第一无线接入点的无线通信系统中， 以及第二无线接入点，其能够与第一无线接入点执行载波感测，并且通过正交频分多址与第二小区内的一个或多个无线站点相互协作地进行操作， 第一无线接入点包括访问权获取装置，该装置在产生要发送的数据时获取访问权; 以及发送许可的发送装置，该许可发送装置在获取访问权的时段中向第二无线接入点发送使用第一小区内未被调度使用的信道的许可，并且第二无线接入点包括 通信装置，其经由获得使用许可的信道与第二小区内的无线台进行通信。

公开(公告)号：EP2800416A1

公开(公告)日：2014-11-05

申请号：EP13746689.2

申请日：2013-02-04

申请人： Nippon Telegraph and Telephone Corporation

发明人： MURAKAMI Tomoki ,  ASAI Yusuke ,  KUDO Riichi ,  ISHIHARA Koichi ,  MIZOGUCHI Masato ,  ICHIKAWA Takeo

IPC分类号： H04W28/16 ,  H04B7/06 ,  H04B7/10 ,  H04J11/00 ,  H04J99/00 ,  H04W16/28

CPC分类号： H04B7/0452 ,  H04B7/024 ,  H04B7/0456 ,  H04B7/0617 ,  H04J11/0053 ,  H04L5/0035 ,  H04L5/005 ,  H04L27/2613 ,  H04L27/2626 ,  H04W28/16 ,  H04W88/08

摘要： Interference in preamble signals and pilot signals in cooperative transmission using interference suppressing technology is avoided. A wireless apparatus for transmitting a wireless signal on which directivity control has been performed to stations in a wireless system including at least one wireless apparatus is provided with a known signal generating unit which generates a known signal to be added to the wireless signal, a weighting processing unit which performs weighting on the known signal generated by the known signal generating unit, and a wireless processing unit which transmits the known signal on which the weighting has been performed by the weighting processing unit.

摘要翻译： 避免了使用干扰抑制技术的协作传输中的前导码信号和导频信号的干扰。 一种用于向包括至少一个无线装置的无线系统中的站发送方向性控制的无线信号进行发送的无线装置，具有产生要添加到无线信号的已知信号的已知信号生成部， 处理单元，其对由已知信号生成单元生成的已知信号进行加权，以及无线处理单元，其发送由加权处理单元执行了加权的已知信号。

公开(公告)号：EP2690895A1

公开(公告)日：2014-01-29

申请号：EP12776532.9

申请日：2012-04-25

申请人： Nippon Telegraph And Telephone Corporation

发明人： ASAI Yusuke ,  KUDO Riichi ,  ICHIKAWA Takeo ,  INOUE Yasuhiko ,  ABEYSEKERA Hirantha Sithira ,  MIZOGUCHI Masato

IPC分类号： H04W4/08

CPC分类号： H04W72/04 ,  H04B7/0452 ,  H04L1/00 ,  H04L12/18 ,  H04L12/185 ,  H04L61/2046 ,  H04L61/2069 ,  H04W8/186 ,  H04W24/02 ,  H04W52/00 ,  H04W76/11 ,  H04W76/40 ,  H04W88/08

摘要： In a system which performs wireless communication from an access point to stations using group identification information, the frequency of uses of group identification information that overlaps with that of another access point is reduced. An association between a station apparatus included in a group that is a target for simultaneous transmission and group identification information is stored, each station apparatus included in the group is notified of the group identification information, group identification information that is being used in the other access point apparatus is acquired, and if group identification information that is being used by the access point apparatus itself overlaps with the group identification information used by the other access point apparatus, the group identification information is changed so as to reduce the number of pieces of overlapping group identification information.

摘要翻译： 在使用组识别信息执行从接入点到站的无线通信的系统中，减少与另一个接入点重叠的组识别信息的使用频率。 存储包括在作为用于同时发送的目标的组中的站装置与组识别信息之间的关联，向组中包括的每个站装置通知组标识信息，正在其他访问中使用的组标识信息 并且如果由接入点设备本身正在使用的组识别信息与由另一个接入点设备使用的组识别信息重叠，则组识别信息被改变以便减少重叠的数量 组识别信息。

公开(公告)号：EP2547155A1

公开(公告)日：2013-01-16

申请号：EP11753437.0

申请日：2011-03-10

申请人： Nippon Telegraph And Telephone Corporation

发明人： MURAKAMI Tomoki ,  KUDO Riichi ,  ICHIKAWA Takeo ,  TAKATORI Yasushi ,  MATSUI Munehiro ,  ASAI Yusuke ,  MIZOGUCHI Masato

IPC分类号： H04W52/24 ,  H04J99/00 ,  H04W28/18

CPC分类号： H04W72/082 ,  H04B5/00 ,  H04B7/0452 ,  H04B17/345 ,  H04L5/0055 ,  H04W52/243 ,  H04W72/0453

摘要： Provided are a wireless communication method, a base station, a wireless communication system and a communication apparatus whereby an interference power is calculated from an estimated propagation channel estimation result and the transmission power is controlled based on the interference power or the interference is suppressed by controlling the directivity, thereby increasing the transmission capacity. A propagation channel estimation circuit performs propagation channel estimation from a response signal transmitted from a terminal station and estimates a propagation channel estimation result. An interference power calculation circuit measures each interference power from a signal of each sub-carrier received by each of wireless units, and calculates an interference power for each sub-carrier from the propagation channel estimation result estimated by the propagation channel estimation circuit. When the calculated interference power is equal to or more than a predetermined threshold, an interference suppression signal generation circuit changes the transmission power and generates an interference suppression signal.

摘要翻译： 提供了一种无线通信方法，基站，无线通信系统和通信装置，由此根据估计的传播路径估计结果计算干扰功率，并且基于干扰功率来控制发送功率，或者通过控制来抑制干扰 方向性，从而增加传输能力。 传播路径估计电路根据从终端发送的响应信号进行传播路径估计，并估计传播路径估计结果。 干扰功率计算电路根据由每个无线单元接收的每个子载波的信号测量每个干扰功率，并且根据由传播信道估计电路估计的传播路径估计结果计算每个子载波的干扰功率。 当所计算的干扰功率等于或大于预定阈值时，干扰抑制信号发生电路改变发射功率并产生干扰抑制信号。

公开(公告)号：EP3334202B1

公开(公告)日：2020-12-02

申请号：EP16833002.5

申请日：2016-08-01

申请人： Nippon Telegraph and Telephone Corporation

发明人： KUDO Riichi ,  ABEYSEKERA Hirantha Sithira ,  Matsui Munehiro ,  ICHIKAWA Takeo ,  MIZOGUCHI Masato

IPC分类号： H04W24/10 ,  H04W24/00 ,  H04W84/12 ,  H04W74/08

公开(公告)号：EP2800416B1

公开(公告)日：2019-03-27

申请号：EP13746689.2

申请日：2013-02-04

申请人： Nippon Telegraph and Telephone Corporation

发明人： MURAKAMI Tomoki ,  ASAI Yusuke ,  KUDO Riichi ,  ISHIHARA Koichi ,  MIZOGUCHI Masato ,  ICHIKAWA Takeo

IPC分类号： H04B7/06 ,  H04B7/10 ,  H04J11/00 ,  H04L5/00 ,  H04L27/26 ,  H04W16/28 ,  H04W28/16

公开(公告)号：EP2863700B1

公开(公告)日：2019-03-13

申请号：EP13819690.2

申请日：2013-07-19

申请人： Nippon Telegraph and Telephone Corporation

发明人： ABEYSEKERA Hirantha Sithira ,  INOUE Yasuhiko ,  ASAI Yusuke ,  SHINOHARA Shoko ,  ICHIKAWA Takeo ,  MIZOGUCHI Masato

IPC分类号： H04W72/04 ,  H04W74/08 ,  H04J11/00

公开(公告)号：EP2905983B1

公开(公告)日：2018-07-18

申请号：EP13853482.1

申请日：2013-11-12

申请人： Nippon Telegraph and Telephone Corporation

发明人： ABEYSEKERA Hirantha Sithira ,  ISHIHARA Koichi ,  INOUE Yasuhiko ,  ASAI Yusuke ,  TAKATORI Yasushi ,  ICHIKAWA Takeo ,  MIZOGUCHI Masato ,  MATSUI Munehiro

IPC分类号： H04W16/10 ,  H04W24/02 ,  H04W84/12 ,  H04W88/08

CPC分类号： H04W16/14 ,  H04W24/02 ,  H04W72/0453 ,  H04W84/12 ,  H04W88/08

摘要： A wireless communication apparatus is provided that is capable of performing setting of a wireless LAN access point so that frequency utilization efficiency of an entire wireless communication system that includes wireless LAN access points of different manufacturers and different model numbers is improved. A wireless communication system which performs setting necessary for a wireless LAN access point constituting a wireless communication network to operate includes: an information collection unit which collects setting information set in the wireless LAN access point and wireless environment information in the wireless LAN access point, a parameter calculation unit which obtains a parameter to be set for the wireless LAN access point, which is a collection source, based on the collected setting information and the collected wireless environment information, and a parameter setting unit which transmits the obtained parameter to the wireless LAN access point, which is a collection source, over a network and performs setting of the parameter.