公开(公告)号：US07609775B2

公开(公告)日：2009-10-27

申请号：US11808541

申请日：2007-06-11

申请人： Dai Kimura ,  Tetsuhiro Futami ,  Yoshihiro Kawasaki

发明人： Dai Kimura ,  Tetsuhiro Futami ,  Yoshihiro Kawasaki

IPC分类号： H04L27/28 ,  H04B1/69

CPC分类号： H04L27/2647 ,  H04L27/2607

摘要： In a radio communication apparatus for forming a frame with a plurality of slots, and inserting a guard interval into each slot along with data for a mobile station to perform communication, a receive state acquisition section acquires a receive state of each mobile station, a frame format decision section decides a frame format of which guard interval length is, different for each slot based on the receive state of each mobile station, a slot assignment section assigns each slot of the frame format to data for each mobile station, and a frame format reporting section reports the decided frame format to the mobile stations via a reporting channel. The mobile station identifies the GI length based on the reported frame format and the slot number, removes the guard interval, and performs processing.

摘要翻译： 在用于形成具有多个时隙的帧的无线电通信装置中，并且与用于移动台进行通信的数据一起将保护间隔与每个时隙一起插入，接收状态获取部分获取每个移动台的接收状态，帧 格式决定部基于每个移动台的接收状态来决定保护间隔长度对于每个时隙不同的帧格式，时隙分配部将帧格式的每个时隙分配给每个移动台的数据，以及帧格式 报告部分通过报告信道将确定的帧格式报告给移动台。 移动台基于所报告的帧格式和时隙号识别GI长度，消除保护间隔，并执行处理。

公开(公告)号：US08265183B2

公开(公告)日：2012-09-11

申请号：US12606747

申请日：2009-10-27

申请人： Dai Kimura ,  Tetsuhiro Futami ,  Yoshihiro Kawasaki

发明人： Dai Kimura ,  Tetsuhiro Futami ,  Yoshihiro Kawasaki

IPC分类号： H04L27/28

CPC分类号： H04L27/2647 ,  H04L27/2607

摘要： In a radio communication apparatus for forming a frame with a plurality of slots, and inserting a guard interval into each slot along with data for a mobile station to perform communication, a receive state acquisition section acquires a receive state of each mobile station, a frame format decision section decides a frame format of which guard interval length is different for each slot based on the receive state of each mobile station, a slot assignment section assigns each slot of the frame format to data for each mobile station, and a frame format reporting section reports the decided frame format to the mobile stations via a reporting channel. The mobile station identifies the GI length based on the reported frame format and the slot number, removes the guard interval, and performs processing.

摘要翻译： 在用于形成具有多个时隙的帧的无线电通信装置中，并且与用于移动台进行通信的数据一起将保护间隔与每个时隙一起插入，接收状态获取部分获取每个移动台的接收状态，帧 格式决定部基于各移动台的接收状态来决定各时隙的保护间隔长度不同的帧格式，时隙分配部将帧格式的每个时隙分配给每个移动台的数据，帧格式报告 部分通过报告信道将确定的帧格式报告给移动台。 移动台基于所报告的帧格式和时隙号识别GI长度，消除保护间隔，并执行处理。

公开(公告)号：US09219585B2

公开(公告)日：2015-12-22

申请号：US12425614

申请日：2009-04-17

申请人： Yoshihiro Kawasaki

发明人： Yoshihiro Kawasaki

IPC分类号： H04L5/00 ,  H04W52/02

CPC分类号： H04L5/005 ,  H04L5/0089 ,  H04W52/0206 ,  Y02D70/24 ,  Y02D70/25

摘要： In conditions of low data traffic, such as during the night, when transmitting pilots in a downlink radio transmission zone, sub frames are divided into (1) first sub frames that transmit common pilots over a whole transmission band, and (2) second sub frames that transmit common pilots over a specified narrow band of a whole transmission band, where first sub frames are transmitted at a specified period, and second sub frames are transmitted for period of time except the specified period.

摘要翻译： 在诸如夜间的低数据业务的情况下，当在下行链路无线电传输区域中发送导频时，子帧被划分为（1）在整个传输频带上传送公共导频的第一子帧，以及（2）第二子帧 在整个传输频带的特定窄带上发送公共导频的帧，其中以指定周期发送第一子帧，并且在指定周期之外的一段时间内发送第二子帧。

公开(公告)号：US09161369B2

公开(公告)日：2015-10-13

申请号：US12774078

申请日：2010-05-05

申请人： Yoshihiro Kawasaki

发明人： Yoshihiro Kawasaki

IPC分类号： H04B15/00 ,  H04W72/12 ,  H04W52/24 ,  H04W92/20

CPC分类号： H04W72/1231 ,  H04W52/243 ,  H04W52/247 ,  H04W72/1278 ,  H04W72/1289 ,  H04W92/20

摘要： A radio communication system including mobile terminals and plural base stations each of which communicates with mobile terminals existing in a subordinate cell. Each of the base stations includes an interference power measurement portion which measures a total interference power received from mobile terminals existing in adjacent cells; an interference reduction request portion which issues a request to reduce interference to base stations of the adjacent cells based on the total interference power; and a control portion which notifies mobile terminals existing in a subordinate cell of transmission power control information when the request to reduce interference is received from a base station of an adjacent cell, so as to reduce the interference. Each of the mobile terminals includes a reception portion which receives the transmission power control information from the base station that is requested to reduce the interference from the base station of the adjacent cell.

摘要翻译： 一种无线电通信系统，包括移动终端和多个基站，每个基站与存在于下级小区中的移动终端进行通信。 每个基站包括干扰功率测量部分，其测量从相邻小区中存在的移动终端接收的总干扰功率; 干扰减少请求部分，其基于所述总干扰功率发出对相邻小区的基站的干扰的请求; 以及控制部，其在从相邻小区的基站接收到减少干扰的请求时，通知发送功率控制信息的下位单元中存在的移动终端，以减少干扰。 每个移动终端包括接收部分，其从基站接收被请求减少来自相邻小区的基站的干扰的发射功率控制信息。

公开(公告)号：US08923872B2

公开(公告)日：2014-12-30

申请号：US13567515

申请日：2012-08-06

申请人： Yoshiaki Ohta ,  Yoshihiro Kawasaki ,  Yoshiharu Tajima ,  Yoshinori Tanaka ,  Katsumasa Sugiyama

发明人： Yoshiaki Ohta ,  Yoshihiro Kawasaki ,  Yoshiharu Tajima ,  Yoshinori Tanaka ,  Katsumasa Sugiyama

IPC分类号： H04W72/00 ,  H04W74/02 ,  H04W72/04 ,  H04W16/14 ,  H04W74/08

CPC分类号： H04W72/042 ,  H04W16/14 ,  H04W74/02 ,  H04W74/0833 ,  H04W76/18

摘要： A radio communication apparatus selectively performs one of a first transmission method using for data transmission a radio resource which is assigned by a radio communication apparatus and which can be used on a contention basis by a plurality of radio communication apparatus and a second transmission method involving random access. Alternatively, the radio communication apparatus selectively performs one of the first transmission method and a third transmission method involving a request made to the radio communication apparatus to assign a radio resource for data transmission.

摘要翻译： 无线电通信装置选择性地执行用于数据传输的第一传输方法之一，无线电资源由无线电通信装置分配并且可以由多个无线电通信装置在竞争的基础上使用，并且第二传输方法涉及随机 访问。 或者，无线电通信装置选择性地执行第一传输方法和第三传输方法之一，该方法涉及对无线电通信装置的请求，以分配用于数据传输的无线电资源。

公开(公告)号：US08902837B2

公开(公告)日：2014-12-02

申请号：US13528519

申请日：2012-06-20

申请人： Yoshiaki Ohta ,  Yoshiharu Tajima ,  Kazuhisa Obuchi ,  Yoshihiro Kawasaki

发明人： Yoshiaki Ohta ,  Yoshiharu Tajima ,  Kazuhisa Obuchi ,  Yoshihiro Kawasaki

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

CPC分类号： H04W74/08 ,  H04W74/008 ,  H04W74/0833

摘要： Random access in a wireless communication system including a base station and a wireless terminal, whereby at the wireless terminal, performing first random access scheme using a first random access preamble or second random access scheme using a second random access preamble which is received from the base station.

摘要翻译： 在包括基站和无线终端的无线通信系统中的随机接入，由此在无线终端，使用从基站接收的第二随机接入前导码，使用第一随机接入前导码或第二随机接入方案来执行第一随机接入方案 站。

公开(公告)号：US08902836B2

公开(公告)日：2014-12-02

申请号：US13527133

申请日：2012-06-19

申请人： Yoshiaki Ohta ,  Yoshiharu Tajima ,  Kazuhisa Obuchi ,  Yoshihiro Kawasaki

发明人： Yoshiaki Ohta ,  Yoshiharu Tajima ,  Kazuhisa Obuchi ,  Yoshihiro Kawasaki

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

CPC分类号： H04W74/08 ,  H04W74/008 ,  H04W74/0833

摘要： A system and method for random access in a wireless communication system including a base station and a wireless terminal, whereby at the wireless terminal, selecting, as information to perform random access using the information, first information used for first random access or second information used for second random access.

摘要翻译： 一种用于在包括基站和无线终端的无线通信系统中进行随机接入的系统和方法，由此在无线终端，选择作为使用该信息进行随机接入的信息，用于第一随机接入或第二信息的第一信息 用于第二次随机访问。

公开(公告)号：US08750233B2

公开(公告)日：2014-06-10

申请号：US13566559

申请日：2012-08-03

申请人： Takayoshi Ode ,  Yoshihiro Kawasaki ,  Kazuo Kawabata

发明人： Takayoshi Ode ,  Yoshihiro Kawasaki ,  Kazuo Kawabata

IPC分类号： H04W72/04 ,  H04W74/08 ,  H04L5/00

CPC分类号： H04W72/0453 ,  H04L5/00 ,  H04L5/0007 ,  H04L27/261 ,  H04W28/26 ,  H04W48/08 ,  H04W72/00 ,  H04W72/04 ,  H04W72/0406 ,  H04W72/044 ,  H04W88/08

摘要： A communications system for exchange of information between communications apparatuses by a multicarrier transmission mode using a plurality of subcarriers, the communication system includes a transmission data generator configured to generate frequency band information indicating which frequency band is to be used for transmission of data information between said communication apparatuses and a transmitter configured to transmit the frequency band information by using a specific frequency band which is set from among a plurality of frequency band assigned to the communications system, and to transmit data information by using at least one frequency band set from among said plurality of frequency bands and a receiver configured to receive the frequency band information by using the specific frequency band, whereby one or more of said frequency band is assigned consecutive with said specific frequency band along a frequency axis.

摘要翻译： 一种用于使用多个子载波的多载波传输模式在通信设备之间交换信息的通信系统，所述通信系统包括发送数据发生器，其被配置为生成指示哪个频带用于在所述多个子载波之间传输数据信息的频带信息 通信装置和发送器，被配置为通过使用从分配给通信系统的多个频带中设置的特定频带来发送频带信息，并且通过使用从所述通信系统中设置的至少一个频带来发送数据信息 多个频带和被配置为通过使用所述特定频带来接收所述频带信息的接收机，由此所述频带中的一个或多个沿着频率轴与所述特定频带连续地分配。

公开(公告)号：US08705465B2

公开(公告)日：2014-04-22

申请号：US12900117

申请日：2010-10-07

申请人： Yoshiharu Tajima ,  Kazuhisa Obuchi ,  Yoshinori Tanaka ,  Yoshihiro Kawasaki ,  Yoshiaki Ohta ,  Katsumasa Sugiyama

发明人： Yoshiharu Tajima ,  Kazuhisa Obuchi ,  Yoshinori Tanaka ,  Yoshihiro Kawasaki ,  Yoshiaki Ohta ,  Katsumasa Sugiyama

IPC分类号： H04W8/22

CPC分类号： H04W76/18 ,  H04W76/11

摘要： In a wireless communication system, a wireless base station, if rejecting a connection to a wireless terminal that makes a connection request in accordance with a first connection processing, controls to adopt a second connection processing different from the first connection processing in response to a subsequent connection request by the wireless terminal.

摘要翻译： 在无线通信系统中，无线基站如果拒绝与根据第一连接处理进行连接请求的无线终端的连接，则控制采取与第一连接处理不同的第二连接处理，以响应于随后的 无线终端的连接请求。

公开(公告)号：US08606278B2

公开(公告)日：2013-12-10

申请号：US13607139

申请日：2012-09-07

申请人： Yoshiharu Tajima ,  Yoshinori Tanaka ,  Yoshihiro Kawasaki ,  Yoshiaki Ohta ,  Katsumasa Sugiyama

发明人： Yoshiharu Tajima ,  Yoshinori Tanaka ,  Yoshihiro Kawasaki ,  Yoshiaki Ohta ,  Katsumasa Sugiyama

IPC分类号： H04W36/00

CPC分类号： H04W48/20 ,  H04W48/16

摘要： A mobile communication system includes plural base stations forming cells and a mobile station disposed in one of the cells and wirelessly communicating with one of the plural base stations. One of the plural base stations includes a cell group information broadcast unit broadcasting plural cell group information items which are information indicating a relationship between moving directions and cell groups, and the mobile station includes a cell group information selection unit selecting a cell group information item corresponding to an estimated moving direction of the mobile station out of the plural cell group information items broadcast by the one of the plural base stations, and a standby cell selection unit selecting, as a new standby cell, a cell having a receiving state satisfying a desired condition from among cells included in the selected cell group information item.

摘要翻译： 移动通信系统包括形成小区的多个基站和设置在其中一个小区中并与多个基站之一无线通信的移动站。 多个基站中的一个包括：小区组信息广播单元，广播作为移动方向与小区组之间的关系的信息的多个小区组信息项，移动站包括：小区组信息选择单元，选择对应的小区组信息项 到多个基站中的一个广播的多个小区组信息中的移动台的估计移动方向，备用小区选择单元选择具有满足期望的接收状态的新的备用小区， 包括在所选择的小区组信息项中的小区之间的条件。