公开(公告)号：US07684369B2

公开(公告)日：2010-03-23

申请号：US10789749

申请日：2004-02-27

申请人： Yoshiharu Tajima

发明人： Yoshiharu Tajima

IPC分类号： H04W4/00

CPC分类号： H04W36/18 ,  H04W88/08

摘要： The invention provides a radio base station apparatus forming a wireless zone in a mobile communication system and to a base station controller performing channel control over a terminal visiting a wireless zone. The radio base station apparatus has an identifying section identifying a particular radio base station that is to maintain a radio channel between the radio base station apparatus and a terminal during a process of diversity handover, a network interface section delivering a signal to a network if a local station is not the particular radio base station, and an inter-office interface section delivering to the network a composite wave of the signal and a signal having arrived and forwarded from the terminal via the radio channel at a radio base station forming a wireless zone adjacent to a wireless zone formed by the local station if the local station is the particular radio base station.

摘要翻译： 本发明提供一种在移动通信系统中形成无线区域的无线基站装置，以及对访问无线区域的终端进行信道控制的基站控制装置。 无线基站装置具有：识别部，识别在分集越区切换的处理期间，维持无线基站装置与终端之间的无线信道的特定的无线基站;网络接口部，向网络发送信号，如果 本地站不是特定的无线电基站，以及一个局间接口部分，在无线电基站上形成信号的合成波和已经从终端经由无线电信道到达和转发的信号，形成无线区 如果本地站是特定的无线电基站，则与由本地站形成的无线区相邻。

公开(公告)号：US20100056155A1

公开(公告)日：2010-03-04

申请号：US12616482

申请日：2009-11-11

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： H04W36/00

CPC分类号： H04W36/0072 ,  H04W74/0866

摘要： A wireless base station apparatus includes a reporting unit which reports information on a first transmission area that allows transmission of a random access signal. Accordingly, the first transmission area is wholly reported to mobile station apparatuses within an area of the wireless base station apparatus. That is, both a mobile station apparatus in a non-handover state and a mobile station apparatus in a handover state receive the first transmission area information (report information) and use the first transmission area as a transmission area for transmitting a random access signal to the wireless base station apparatus. The wireless base station apparatus also has a notifying unit which notifies a second transmission area to a mobile station apparatus in a handover state, the second transmission area being different from the first transmission area reported by the reporting unit of the handover-destination wireless base station apparatus.

摘要翻译： 无线基站装置包括：报告单元，其报告允许发送随机接入信号的第一发送区域的信息。 因此，第一发送区域被完全报告给无线基站装置的区域内的移动站装置。 也就是说，无切换状态的移动台装置和切换状态的移动台装置都接收第一发送区域信息（报告信息），并且使用第一发送区域作为发送随机接入信号的发送区域 无线基站装置。 无线基站装置还具有通知单元，其在切换状态下向移动站装置通知第二发送区域，第二发送区域与切换目的地无线基站的报告单元报告的第一发送区域不同 仪器。

公开(公告)号：US20090185539A1

公开(公告)日：2009-07-23

申请号：US12417098

申请日：2009-04-02

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

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

IPC分类号： H04W72/00

CPC分类号： H04W36/02

摘要： To provide a method for suitably enabling the resources of a handover-source base station to be released and the post-handover processes of a handover-destination base station to be executed by securely determining a transfer of Last Packet without increasing a packet transmission delay in a handover process in a mobile communication system where a mobile station makes a communication with packets, a base station is provided with a Last Packet determination timer, and the handover source base station or the handover-destination base station activates the timer upon receipt of a handover completion acknowledgment transmitted from an upper node station or according to a resource release instruction after the reception of the handover completion acknowledgment, and determines that Last Packet has been received, upon expiration of the timer.

摘要翻译： 提供一种适当地使切换源基站的资源得到释放的方法，以及通过安全地确定最后分组的传输来执行切换目的地基站的切换后处理，而不增加分组传输延迟 在移动站与分组进行通信的移动通信系统中的切换处理，基站设置有最后分组确定定时器，并且切换源基站或切换目的地基站在接收到定时器时激活定时器 在接收到切换完成确认之后从上位节点发送切换完成确认或根据资源释放指令，并且在定时器期满时确定已经接收到最后分组。

公开(公告)号：US20090131070A1

公开(公告)日：2009-05-21

申请号：US12355024

申请日：2009-01-16

申请人： Yoshiharu TAJIMA ,  Kazuo KAWABATA ,  Yoshiaki OHTA ,  Kazuhisa OBUCHI ,  Hideto FURUKAWA

发明人： Yoshiharu TAJIMA ,  Kazuo KAWABATA ,  Yoshiaki OHTA ,  Kazuhisa OBUCHI ,  Hideto FURUKAWA

IPC分类号： H04W74/00

CPC分类号： H04W72/06 ,  H04W72/02 ,  H04W72/042 ,  H04W72/048

摘要： A wireless communication system comprises a mobile station and a base station, which use a plurality of communication channels and a pilot channel corresponding to at least one of the communication channels. The base station has a transmitting unit that employs at least one of the communication channels as a priority channel and transmits channel information of this priority channel and the other channels by use of a communication channel other than the pilot channel. The mobile station has a determining unit that determines a reception level of the pilot channel; an acquiring unit that acquires the channel information transmitted via the communication channel other than the pilot channel; and a deciding unit that decides, as an available communication channel, at least one of the communication channels based on both the channel information acquired by the acquiring unit and the reception level determined by the determining unit.

摘要翻译： 无线通信系统包括移动站和基站，其使用多个通信信道和对应于至少一个通信信道的导频信道。 基站具有采用至少一个通信信道作为优先级信道的发送单元，并且通过使用导频信道以外的通信信道来发送该优先信道的信道信息和其他信道。 移动台具有确定导频信道的接收电平的判定单元， 获取单元，其获取经由所述导频信道以外的所述通信信道发送的信道信息; 以及决定单元，其基于由所述获取单元获取的所述频道信息和由所述确定单元确定的所述接收电平，决定作为可用通信信道的至少一个所述通信信道。

公开(公告)号：US07492707B2

公开(公告)日：2009-02-17

申请号：US11151486

申请日：2005-06-13

申请人： Atsuya Tanaka ,  Yoshiharu Tajima

发明人： Atsuya Tanaka ,  Yoshiharu Tajima

IPC分类号： G01R31/08 ,  H04J3/00

CPC分类号： H04L1/20 ,  H04L1/0026 ,  H04L47/626 ,  H04W52/223 ,  H04W72/1231

摘要： A transmitting device for transmitting data by means of wireless signals to at least one of a plurality of receiving devices via a channel shared by the plurality of receiving devices is provided. The transmitting device receives reception quality data from each of the plurality of receiving devices; determines future predicted values relating to the reception quality of the respective receiving devices on the basis of the one or plurality of sets of past reception quality data; and selects receiving devices and assigns transmission data to be transmitted to the selected receiving devices to the channel on the basis of the future predicted values. The rate of generation of reception data errors on the side of the receiving devices and data re-transmission rate due to data errors can be reduced, and the throughput can be improved.

摘要翻译： 提供了一种通过无线信号通过多个接收设备共享的信道向多个接收设备中的至少一个发送数据的发送设备。 发送设备从多个接收设备中的每一个接收接收质量数据; 基于一组或多组过去的接收质量数据，确定与各个接收装置的接收质量有关的未来预测值; 并且基于未来的预测值选择接收设备并将要发送到所选接收设备的发送数据分配给信道。 可以减少接收装置一侧的接收数据错误的产生速率和由于数据错误导致的数据重传速率，并且可以提高吞吐量。

公开(公告)号：US20080254802A1

公开(公告)日：2008-10-16

申请号：US12144847

申请日：2008-06-24

申请人： Yoshiaki Ohta ,  Yoshiharu Tajima ,  Kazuo Kawabata

发明人： Yoshiaki Ohta ,  Yoshiharu Tajima ,  Kazuo Kawabata

IPC分类号： H04Q7/20

CPC分类号： H04W36/08 ,  H04W36/0072 ,  H04W36/02 ,  H04W36/026 ,  H04W36/18 ,  H04W36/28 ,  H04W80/04 ,  H04W88/14 ,  H04W92/12

摘要： The present invention is a handover control method in a mobile communication system that performs handover control by switching base stations that communicate with a mobile terminal as the mobile terminal moves. In this handover control method, a mobile control device selects one or more handover base station candidates based on the communication state, and based on the communication capabilities of the handover base station candidates, decides a transmission rate for multicasting communication data, and transmits communication data to each of the handover base station candidates at the decided transmission rate, and a handover base station candidate that is decided as a handover base station sends the saved multicast communication data to the mobile terminal.

摘要翻译： 本发明是移动通信系统中的切换控制方法，该移动通信系统通过在移动终端移动时与移动终端通信的基站进行切换控制。 在该切换控制方法中，移动控制装置基于通信状态选择一个以上的切换基站候选，基于切换基站候选的通信能力，决定通信数据的组播的传输速率，并发送通信数据 以所确定的传输速率向每个切换基站候选者发送，并且被确定为切换基站的切换基站候选者将保存的多播通信数据发送到移动终端。

公开(公告)号：US20070242654A1

公开(公告)日：2007-10-18

申请号：US11812788

申请日：2007-06-21

申请人： Kazuo Kawabata ,  Hideto Furukawa ,  Kazuhisa Obuchi ,  Yoshiharu Tajima

发明人： Kazuo Kawabata ,  Hideto Furukawa ,  Kazuhisa Obuchi ,  Yoshiharu Tajima

IPC分类号： H04B7/212

CPC分类号： H04W74/0866 ,  H04W72/1278

摘要： The radio communication system, comprises: a base station; and a plurality of terminals which perform reservation request for radio resources necessary for data transmission to said base station at random, wherein each of the plurality of terminals are allocated with individualized radio resources for reservation request necessary for the terminal to perform the reservation request to the base station. As a result, the occurrence of collision of reservation requests is eliminated.

摘要翻译： 无线通信系统包括：基站; 以及多个终端，其对随机地向所述基站进行数据传输所需的无线电资源进行预约请求，其中，为所述终端执行所述预留请求所需的预留请求分配给所述多个终端中的每一个， 基站。 结果，消除了预约请求的冲突的发生。

公开(公告)号：US20070173247A1

公开(公告)日：2007-07-26

申请号：US11730530

申请日：2007-04-02

申请人： Nobuhisa Aoki ,  Kazuo Kawabata ,  Yoshiharu Tajima ,  Katsumasa Sugiyama ,  Yuichiro Hamano ,  Masashi Sakai

发明人： Nobuhisa Aoki ,  Kazuo Kawabata ,  Yoshiharu Tajima ,  Katsumasa Sugiyama ,  Yuichiro Hamano ,  Masashi Sakai

IPC分类号： H04Q7/20

CPC分类号： H04H20/72 ,  H04W4/06 ,  H04W36/0007 ,  H04W36/08 ,  H04W72/005

摘要： A mobile communication system for transmitting broadcast data or multicast data from a base station forming a multicast or broadcast zone includes a first controller for determining a base station among a plurality of base stations and a second controller for performing the transmission of the broadcast data or the multicast data from the base station in accordance with the determined result.

摘要翻译： 用于从形成多播或广播区域的基站发送广播数据或多播数据的移动通信系统包括用于确定多个基站中的基站的第一控制器和用于执行广播数据的传输的第二控制器 根据确定的结果来自基站的多播数据。

公开(公告)号：US09253687B2

公开(公告)日：2016-02-02

申请号：US12603125

申请日：2009-10-21

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

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

IPC分类号： H04W36/00 ,  H04L12/801 ,  H04W36/02 ,  H04L12/861

CPC分类号： H04W36/0005 ,  H04L47/10 ,  H04L47/14 ,  H04L47/34 ,  H04L49/9057 ,  H04W36/02 ,  H04W36/023

摘要： A reordering method of sending packets, to which numbers indicating the packet order are added, to a mobile station from a base station, and rearranging the order of the packets at the mobile station, this includes forwarding from a source base station to a target base station, packets, not sent to the mobile station before a handover sequence, or packets, a confirmation response of proper reception has not been received from the mobile station, transmitting preferentially those packets from the target base station to the mobile base station and then transmitting packets received from a host station to the mobile station, giving packets information indicating that the packets are jump packets when transmitting the packets to the mobile station, received from the host station with the order jumped, deciding jump packets are not objects of reordering, and performing the reordering process for packets that are objects of reordering.

公开(公告)号：US08902838B2

公开(公告)日：2014-12-02

申请号：US13528524

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： H04W72/04 ,  H04W74/08

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, selecting first information used for first random access or second information used for second random access; and transmitting, during or after the completion of random access using selected information, third information with a response message to be transmitted to the base station during random access using information which is not selected.

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，由此在无线终端处选择用于第一随机接入的第一信息或用于第二随机接入的第二信息; 以及使用所选择的信息在随机访问完成期间或之后使用具有响应消息的第三信息，在使用未被选择的信息的随机访问期间发送到基站。